1999 Audi A4 Cooling and Climate Controls
Find Your Specific 1999 Audi A4 Cooling and Climate Controls
Below you will find various in-demand Audi Cooling and Climate Controls, components and accessories for your 1999 A4. Advance Auto Parts has popular A4 parts like Heating Parts, Air Conditioning Parts, Blend Doors and more. You’ll also find aftermarket and OEM Cooling and Climate Controls for other A4 model years including
2012,
2013,
2014,
2015,
2016,
2017,
2018,
2019,
2020 and more. Select a category of 1999 Audi A4 Cooling and Climate Controls below and start saving instantly.
Popular 1999 Audi A4 Cooling and Climate Controls Categories
Essential Cooling and Climate Controls for 1999 Audi A4s
Carquest Premium – Multi-Use Connector (Part No.PTA1465)
from
$49.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
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Product Features:
- Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- Sealed connections (where applicable) to prevent environmental corrosion and performance issues
- Global coverage for import and/or domestic applications
- OE specified wire gauge to ensure a reliable electrical connection
- Designed to meet or exceed OE specifications in form, fit and function
KAI – A/C Condenser (Part No.CNDDPI3160)
from
$80.99
New Platinum Pro A/C Condenser, 2003 From Vin 3285001
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Product Features:
- 2003 From Vin 3285001, Made Of Aluminum
- Meets All Federal Motor Safety Standards
- No Drilling Needed For Installation
- No Modifications Needed For Installation
- Direct Fit Replacement For Your Vehicle
- Same Form Fit And Function As OE
- Check Out The Large Selection Of Parts Available For Your Vehicle
DENSO – A/C Compressor with Clutch – New (Part No.471-1491)
from
$497.99
As one of the world’s largest OE suppliers of A/C compressors DENSO units are specified by most major vehicle manufacturers. DENSO First Time Fit A/C compressors are manufactured and tested to the strictest OE standards for unparalleled performance. At DENSO we bring together everything we know as an air conditioning systems manufacturer to bring you the highest quality line of factory-new compressors available. When it comes to new compressors you can’t do better than going with a unit manufactured by the OE supplier. At DENSO we know these units better than anyone because we originally designed them. Our compressors are built to meet DENSO’s unsurpassed reputation for technological superiority. You can relax knowing DENSO will give you the right part and the right fit the first time.
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Product Features:
- DENSO is the world’s largest OE supplier of A/C compressors
- Each compressor is precision manufactured for exact replacement
- Designed for high output and extended durability
- Highest quality in the Aftermarket
Dayco – Molded Heater Hose; EPDM Rubber, 9/32 Inch Diameter, 5 Inch Length (Part No.86503)
from
$9.99
Providing reliable service in applications requiring molded hoses in small diameters, the Dayco small I.D. heater hose is designed to replace OEM coolant hoses. Made with the same bends and routing as the original assembly, this molded hose is meant to fit the vehicle precisely. The knitted reinforcement and synthetic EPDM construction provide high-strength performance and resistance to detrimental environmental elements, coolants and temperature variations of -40°F (-40°C) to +257°F (+125°C) and the “quick connect” end allows for fast, convenient installation.
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Product Features:
- Meets the requirements of SAE J20R3, Class D-1
- Designed to meet Type EC electro-chemical requirements as specified in SAE J1684, which prevents inner tube deterioration caused by the build-up of static electric charges
- Engineered as an OEM replacement
- The knitted polyester reinforcement provides high burst strength and resists degradation from temperature extremes and moisture
Dorman – HVAC Blend Door Actuator: 1 Piece (Part No.604-829)
from
$144.99
This air door actuator directly replaces the original actuator on specific vehicle years, makes, models, configurations and positions to restore proper HVAC operation. Please note that many vehicles have several different air door actuators, which are designed for specific positions and functions in the vehicle. To ensure you have what you need, carefully review the application notes for this part to verify it matches the position and function of the actuator you need to replace. In some online ordering systems, you may need to enter your vehicle information first to see the application notes for your vehicle. If you don’t know which actuator position you need to replace, consult a qualified service technician.
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Product Features:
- Direct replacement – made to match the fit and function of the original air door actuator on certain vehicle years, makes, models and configurations
- Position specific – vehicles often have multiple different HVAC door actuators; review this part’s application notes to verify it matches the location and function of the actuator you need to replace
- Durable construction – designed and tested to strict standards to help resist wear and electrical burnout for reliable operation and long service life
- Trustworthy quality – backed by a team of experts and engineers in the United States, and more than a century of experience
Rein – Auxiliary Water Pump (Part No.WPA0033)
from
$151.99
Rein Automotive OE quality auxiliary water pumps are fabricated from original casting specifications to ensure proper fit for easy installation, proper water flow and maximum cooling. Auxiliary water pump use high-quality plastic or metal construction to ensure durability and long service life. Our auxiliary water pumps aim to provide the professional repair technician and vehicle owner the peace of mind and trust that is expected from an OE quality component.
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Product Features:
- High-quality plastic or metal construction
- Flow-rates matched to OE flow-rates
- Includes the vibration isolators, mounting brackets and hardware where applicable for easy installation
Carquest Premium – Universal Fan Clutch – 5" Thermal Import/Compact (Part No.215068)
from
$161.99
Product Features:
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- Designed, tested, and built by application
- OE performance, fit, and appearance
- Precision machined
- Out of box installation
Carquest Premium – Engine Cooling Fan Resistor (Part No.RUA1677)
from
$151.99
The Engine Cooling Fan Resistor is part of the radiator and A/C condenser fan system operation. The engine computer will use the resistor to control the operating speed of the fan motor to achieve a lower fan speed during certain vehicle operating conditions.
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Product Features:
- Application matched components ensure the cooling fan system can be returned to like new condition.
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Carquest Premium – Multi-Purpose Relay (Part No.RAA1246)
from
$24.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
Product Features:
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Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
- Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
- 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Carquest Premium – Engine Cooling Fan Switch (Part No.TFA1033)
from
$62.99
Carquest Premium Vehicle Solutions provides high-quality solutions for a wide range of applications. The Engine Cooling Fan Switch regulates the operation of the cooling fan based on engine temperature, preventing overheating and ensuring optimal engine performance by maintaining a safe operating temperature. Engineered for maximum performance and durability, our products are built to excel in even the most demanding conditions, ensuring reliable operation and long-lasting value.
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Product Features:
- Durable Construction: Designed with high-quality materials to withstand harsh environmental conditions, ensuring long-lasting performance in extreme temperatures, vibrations, and moisture exposure.
- Precision Engineering: Accurate sensing and switching capabilities provide reliable performance, reducing the risk of malfunctions and improving vehicle safety and efficiency.
- Easy Installation & Maintenance: Designed for quick installation and minimal upkeep, reducing downtime and repair costs for both manufacturers and consumers.
- Fit/Form/Function: Each vehicle electronic component is engineered to meet or surpass OEM standards, ensuring precise fit, optimal functionality, and reliable performance.
Factory Air – Green Round O-Ring (sold by each) (Part No.24650)
from
$1.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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Carquest Premium – ABS Wheel Speed Sensor (Part No.ARA3208)
from
$253.99
Carquest Premium anti-lock brake system (ABS) wheel speed sensors are designed to perform in harsh environments and meet or exceed original equipment (O.E.) specifications. Carquest Premium ABS sensors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Each ABS sensor undergoes extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium ABS sensors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
Product Features:
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Product Features:
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
- O-rings or seals are included (where applicable)
- Weather-tight connectors prevent leaks and corrosion for longer life
- Includes all necessary brackets and grommets for easier installation
- Extensive design validation testing and 100% end-of-line tested
- Fluorocarbon high-temperature o-ring seals coated with lubricant for easy installation prevents hub contamination.
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
URO Parts – A/C Safety Switch (Part No.8D0959482B)
from
$25.99
URO Parts has been a leading brand of replacement auto parts for European vehicles for more than thirty years. Affordable yet dedicated to quality, URO Parts controls its production process in strict accordance with ISO/TS 16949 QMS specifications and offers a wide variety of components used to restore or repair engine, electrical, drive train, braking, steering, suspension, climate control, cooling, exhaust, and fuel systems in classic to late-model German, British, and Scandinavian vehicles. Looking for parts that are even higher quality than original equipment? URO Parts engineers analyze common failures and identify weaknesses in original equipment parts when creating URO Premium components, which are superior to OE in performance and reliability thanks to improved materials and more robust designs. Thanks to high-quality, competitively-priced URO Parts and bulletproof URO Premium replacement components, owning a prestigious European vehicle is no longer an expensive luxury reserved for the elite and wealthy.
Product Features:
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Product Features:
- Guaranteed Fitment
- High Quality Materials
- Designed and tested to provide a long life
- Guaranteed fitment
- Replacement of failed OE air conditioning safety switch restores proper system operation
- Direct-fit replacement design is easily installed
- Easy plug-and-play wiring connection
- Manufactured using high-quality polymer and corrosion-resistant metal materials to withstand A/C system temperature cycling
- Alloy conductors minimize electrical resistance for accurate operation
Carquest Premium – Multi-Purpose Relay (Part No.RAA1247)
from
$30.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
Product Features:
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Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
- Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
- 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Felpro – Multi-Purpose O-Ring (Part No.25589)
from
$3.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design
- Manufactured for the sealing repair environment
- Validated for fit, form, and function
- Quality that you can trust
Carquest Premium – A/C Suction Line Hose Assembly (Part No.T55436)
from
$198.99
Carquest Hose Assemblies are designed to carry refrigerant in an air conditioning system. They are manufactured to meet or exceed original equipment specifications and are designed to easily fit into the engine compartment.
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Product Features:
- 100% of hose assemblies use Goodyear hoses that meet original equipment specifications for wall thickness and permeation.
- Tubes and mufflers are designed to meet original equipment specifications for wall thickness.
- Fittings are designed to couple and seal to eliminate leaks. Trivalent plating is used on steel fittings to enhance corrosion resistance. The fittings conform to original equipment specifications to allow for the proper fit with related A/C components.
- Welds and crimps meet and exceed original equipment tension specifications.
- Manufactured to allow flexibility in the hose to conform to engine compartments.
- O-Rings necessary for installation are included.
Victor Reinz – Engine Coolant Thermostat Housing Seal (Part No.41-76540-00)
from
$5.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
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Product Features:
- Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Carquest Premium – HVAC Pressure Switch (Part No.ACC1797)
from
$41.99
The Carquest Premium line of vehicle electronics are designed for OE form, fit and function for both import and domestic vehicles. The A/C Pressure Switch monitors system pressures, aiding in proper and efficient control of the compressor, fans and system levels. An improperly functioning A/C Pressure Switch will provide erratic or inaccurate actuation and operation, severely affecting system performance and function. Without reliable and accurate actuation from a properly functioning A/C Pressure Switch, critical components and the system as a whole are left unregulated and unprotected which can lead to excessive wear and tear on critical components and costly system damage.
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Product Features:
- Designed and manufactured with high quality materials, industry leading electronic components and strict quality controls. Engineered to meet or exceed OE performance and to meet the uncompromising demands of service professionals.
- Direct fit replacement matches proper OE fit, form, and function and ensures trouble free installation of your A/C Pressure Switch.
- All units are tested using advanced end-of-line equipment that pressurize the A/C Pressure Switch, confirm proper calibration and functionality, and check for leaks to ensure each A/C Pressure Switch meets manufacturing specifications before packaging.
Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.813188)
from
$276.99
Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.
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Product Features:
- Thermal tested under real-life temperature simulations
- High tensile strength aluminum for maximum crimp strength
- Plastic tanks are engineeredáwith integrated ribbingáfor addedástrength to withstand cracks, bowing and distortion during thermal cycles
- Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles
Carquest Premium – A/C Block Expansion Valve (Part No.T39473)
from
$22.99
Carquest Expansion Valves are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each expansion valve is manufactured to original equipment specifications to perform its function even in the harshest climates. Each part is supplied with the necessary gaskets and o-rings for installation.
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Product Features:
- The bodies of these expansion valves are machined from a single block of aluminum or brass metal.
- Each expansion valve has settings for tonnage and superheat based on the vehicle specifications.
- Each expansion valve is tested for function and leakage according to OEM specifications to ensure optimal performance of the air conditioning system.
- O-Rings necessary for installation are included.
Carquest Premium – Heater Core (Part No.919373)
from
$84.99
Carquest Premium offers a complete line of automotive heaters covering 94% of all North American vehicle applications. Carquest Premium provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability. Carquest Premium offers certified heaters that meet or exceed OE specifications and are all fitment checked in the actual vehicle’s HVAC heater module and are, thus, ready to be installed right out of the box for a “Drop-In Fit”. Carquest Premium heaters are engineered and manufactured under ISO TS16949 quality systems and are 100% leak tested.
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Product Features:
- All heater cores are designed and tested to match or exceed OE specifications for form, fit and performance with a clear focus on obtaining the highest heat transfer performance possible through use of quality materials and manufacturing processes to ensu
- Premium parts you can rely on; The finest quality at a great price. The finest quality at the most competitive price /or/ Premium quality at the most competitive price.
- Carquest heaters are engineered and manufactured under ISO TS16949 quality systems and are 100% leak tested.
- Designed to keep your A/C system in top shape and built to provide long-lasting service
- Provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability.
- Carquest offers a complete line of automotive heaters covering 94% of all North American vehicle applications.
- Our advanced engineering methods coupled with our innovative manufacturing technology provides products to the aftermarket that meet or exceed form, fit, and function of OEM Parts
Carquest Premium – A/C New, with Clutch, with DCW17B Compressor (Part No.T68638)
from
$529.99
Carquest New Compressors are designed, manufactured and tested to meet or exceed strict original equipment specifications for superior quality and performance. Each new compressor is tested to provide durable life to the vehicle’s air conditioning system. All new compressor components are assembled using state of the art equipment and techniques to ensure smooth operation. Each part is equipped with a clutch and connector that matches the original equipment part and provides an exact replacement to your vehicle’s part. All compressors are supplied with the necessary gaskets and o-rings for installation.
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Product Features:
- Each new compressor design undergoes rigorous life cycle testing at high RPMs and pressures to ensure that they can withstand years in the harshest conditions.
- New compressors are designed with utmost precision using 3D coordinate measuring machines to ensure a perfect fit.
- The production process contains automated controls at every stage that alerts and halts production in case of an error, assuring that the finished product will always be flawless.
- All new compressors must pass a helium leak test and pump up function test prior to packaging.
- O-Rings and gaskets necessary for installation are included.
Rein – Expansion Tank (Part No.EPT0011)
from
$42.99
Rein Automotive OE quality expansion tanks, install, fit and perform the way the original manufacturer intended. These tanks are designed to match or exceed the OE materials used and are produced from virgin plastic with no regrind to prevent cracking from heat cycles and ensure the plastic is durable and will have a long service life.
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Product Features:
- Produced from virgin plastic meeting/exceeding OE specifications and ensuring long life
- Resistant to cracking and wear from heat cycles preventing coolant loss
- Direct fitment allows easy installation
- Manufactured to strict engineering standards/specifications in materials and tolerances
Factory Air – O-Ring & Gasket A/C System Seal Kit (Part No.26767)
from
$26.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Factory Air.
Product Features:
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Product Features:
- All the seals needed to complete the job
- Compatible with both R12 and R134a refrigerants
- Application specific
- SUV and rear air applications
- All the seals needed to complete the job
- Compatible with both R12 and R134a refrigerants
- Application specific
- SUV and rear air applications
Dorman – Coolant Housing/Water Outlet: with Water Outlet and O-Ring, 45 Degree Neck Angle (Part No.902-991)
from
$13.49
This replacement engine coolant thermostat housing is engineered to match the fit and durability of the stock thermostat housing on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.
Product Features:
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Product Features:
- Ideal replacement – this engine coolant thermostat housing directly replaces the original housing on specified vehicle years, makes and models
- Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
- Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
- Industry-leading design – professionally engineered by the aftermarket leader in replacement thermostat housings
Carquest Premium – Engine Coolant Temperature Sensor (Part No.WTA1027)
from
$24.99
Carquest Premium coolant temperature sensors and switches are designed to perform in harsh engine environments and meet or exceed original equipment (O.E.) specifications. Built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry, Carquest Premium coolant temperature sensors and switches undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium coolant temperature sensors and switches are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
Product Features:
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Product Features:
- Designed to meet or exceed OE specifications for fit, form and function
- 100% factory resistance calibrated to ensure extremely accurate temperature readings for optimal performance
- O-rings, seals or thread sealant are included if required
- Wires, clips and probe length match OE (where applicable)
- Weather-tight connectors prevent leaks and corrosion for longer life
- Extensive design validation testing and 100% end-of-line tested
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Factory Air – Green Round O-Ring (sold by each) (Part No.24610)
from
$0.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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Victor Reinz – Engine Water Pump Gasket (Part No.71-15988-00)
from
$15.99
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
Product Features:
See More
Product Features:
- Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Upgrade your 1999 Audi A4 with Top-Quality Cooling and Climate Controls
When it comes to maintaining or upgrading your 1999 Audi A4, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Audi or enhancing its overall performance, Cooling and Climate Controls are key to keeping your A4 functioning at its best. At Advance Auto Parts, we offer a wide selection of 78 Cooling and Climate Controls for the 1999 Audi A4, designed to meet your needs without breaking the bank.
From
Heating Part
replacements to
Air Conditioning Parts
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Cooling and Climate Controls for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Cooling and Climate Controls for your 1999 Audi A4 at great prices.
Our Cooling and Climate Controls inventory for this model
ranges from just $0.99 to $526.99, with
an average price of $95.53.
Our 78 Cooling and Climate Controls in stock come from 17 trusted brands, so you’re sure to find the right part for your 1999 Audi A4 without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 1999 Audi A4, we stock popular OEM and aftermarket Cooling and Climate Controls from top names
like Carquest Premium, Factory Air, Mahle, and more.
Carquest Premium Cooling and Climate Controls
start at just $13.99 and boast an impressive 4.4 stars average rating from customers.
Factory Air and Mahle also bring quality to the table, with Cooling and Climate Controls available starting at $2.49, and at an average 4.4 stars rating.
With 579 customer reviews and counting, our 1999 Audi A4 Cooling and Climate Controls have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Cooling and Climate Control upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 1999 Audi A4 is always ready to roll. We’re committed to providing you with everything you need to keep your A4 in top shape, all in one place.
Start shopping confidently below for your 1999 Audi A4!
Best-Selling Heating Parts for 1999 Audi A4s
Enhance the driving experience in your Audi with 1 quality Heating Part components, starting at $55.99.
Carquest Premium – Heater Core (Part No.399264)
from
$55.99
Carquest Premium offers a complete line of automotive heater cores covering 94% of all North American vehicle applications. Carquest Premium provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability. Carquest Premium offers certified heater cores that meet or exceed OE specifications and are all fitment checked in the actual vehicle’s HVAC heater module and are, thus, ready to be installed right out of the box for a “Drop-In Fit”. Carquest Premium heater cores are engineered and manufactured under ISO TS16949 quality systems and are 100% leak tested.
Product Features:
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Product Features:
- All heater cores are designed and tested to match or exceed OE specifications for form, fit and performance with a clear focus on obtaining the highest heat transfer performance possible through use of quality materials and manufacturing processes to ensu
- Carquest Premium heater cores are engineered and manufactured under ISO TS16949 quality systems and are 100% leak tested.
- Provides value in several ways, including increased thermal performance and resistance to corrosion using enhanced design features, such as the latest fin and tube technology and design standardization for maximum availability.
- Carquest Premium offers a complete line of automotive heater cores covering 94% of all North American vehicle applications.
- Our advanced engineering methods coupled with our innovative manufacturing technology provides products to the aftermarket that meet or exceed form, fit, and function of OEM Parts
Most Popular 1999 Audi A4 Air Conditioning Parts
Customize your Audi with 30 Air Conditioning Parts products
like AC Compressor Without Clutch,
Expansion Valve and Orifice Tubes, and
AC Condensers, all
priced under $526.99.
Factory Air – O-Ring & Gasket A/C System Seal Kit (Part No.26767)
from
$26.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Factory Air.
Product Features:
See More
Product Features:
- All the seals needed to complete the job
- Compatible with both R12 and R134a refrigerants
- Application specific
- SUV and rear air applications
- All the seals needed to complete the job
- Compatible with both R12 and R134a refrigerants
- Application specific
- SUV and rear air applications
Factory Air – Cap & Valve A/C System Seal Kit (Part No.26783)
from
$21.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Factory Air.
Product Features:
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Product Features:
- All the seals needed to complete the job
- Compatible with both R12 and R134a refrigerants
- SUV and rear air applications
- Application specific
- All the seals needed to complete the job
- Compatible with both R12 and R134a refrigerants
- SUV and rear air applications
- Application specific
Carquest Premium – A/C Severe Temp Automatic Adjusting Orifice Tube (Part No.T38904)
from
$19.99
Carquest Orifice Tubes are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each orifice tube is manufactured to original equipment specifications to perform its function even in the harshest climates. Each part is supplied with the necessary gaskets and o-rings for installation.
Product Features:
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Product Features:
- Each orifice tube is tested for function and leakage according to OEM specifications to ensure optimal performance of the air conditioning system.
- O-Rings necessary for installation are included.
- Color coded
Carquest Premium – A/C Yellow Orifice Tube (Part No.T38642)
from
$4.99
Carquest Orifice Tubes are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each orifice tube is manufactured to original equipment specifications to perform its function even in the harshest climates. Each part is supplied with the necessary gaskets and o-rings for installation.
Product Features:
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Product Features:
- Each orifice tube is tested for function and leakage according to OEM specifications to ensure optimal performance of the air conditioning system.
- O-Rings necessary for installation are included.
- Color coded
Carquest Premium – A/C Standard Temp Automatic Adjusting Orifice Tube (Part No.T38902)
from
$19.79
Carquest Orifice Tubes are designed to regulate the flow of refrigerant through the air conditioning system to provide optimal cooling to the passenger compartment. Each orifice tube is manufactured to original equipment specifications to perform its function even in the harshest climates. Each part is supplied with the necessary gaskets and o-rings for installation.
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Product Features:
- The bodies of these expansion valves are machined from a single block of aluminum or brass metal.
- Each expansion valve has settings for tonnage and superheat based on the vehicle specifications.
- Each expansion valve is tested for function and leakage according to OEM specifications to ensure optimal performance of the air conditioning system.
- O-Rings necessary for installation are included.
Factory Air – Green Round O-Ring (sold by each) (Part No.24650)
from
$1.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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Factory Air – Green Round O-Ring (sold by each) (Part No.24610)
from
$0.99
Made from HNBR material; Compatible with R12 And R134A; High quality construction; Universal applications
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Carquest Premium – Multi-Purpose Relay (Part No.RAA1246)
from
$24.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
Product Features:
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Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
- Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
- 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Carquest Premium – Multi-Use Connector (Part No.PTA1465)
from
$49.99
Modern vehicles may have 100 or more electrical harness connectors in every operating system of the vehicle. Terminal tension may weaken with time or corrosion may occur within the connector housing making replacement necessary. When replacing any harness-connector assembly approved wire termination methods must be followed to ensure a successful and long-term solution to the original problem is made. A failed terminal connection, terminal corrosion or damaged wire will result in an electrical system fault.
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Product Features:
- Carquest electrical connectors meet or exceed OE wire gauge, insulation, and terminal material requirements.
- Sealed connections (where applicable) to prevent environmental corrosion and performance issues
- Global coverage for import and/or domestic applications
- OE specified wire gauge to ensure a reliable electrical connection
- Designed to meet or exceed OE specifications in form, fit and function
Carquest Premium – Multi-Purpose Relay (Part No.RAA1247)
from
$30.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
Product Features:
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Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
- Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
- 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Carquest Premium – A/C New, with Clutch, with 7SB16C Compressor (Part No.T78313)
from
$411.99
Carquest New Compressors are designed, manufactured and tested to meet or exceed strict original equipment specifications for superior quality and performance. Each new compressor is tested to provide durable life to the vehicle’s air conditioning system. All new compressor components are assembled using state of the art equipment and techniques to ensure smooth operation. Each part is equipped with a clutch and connector that matches the original equipment part and provides an exact replacement to your vehicle’s part. All compressors are supplied with the necessary gaskets and o-rings for installation.
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Product Features:
- Each new compressor design undergoes rigorous life cycle testing at high RPMs and pressures to ensure that they can withstand years in the harshest conditions.
- New compressors are designed with utmost precision using 3D coordinate measuring machines to ensure a perfect fit.
- The production process contains automated controls at every stage that alerts and halts production in case of an error, assuring that the finished product will always be flawless.
- All new compressors must pass a helium leak test and pump up function test prior to packaging.
- O-Rings and gaskets necessary for installation are included.
Carquest Premium – New Nippondenso 7SB16C Compressor with Clutch (Part No.T98326)
from
$421.99
New Compressors are built in a ISO9001:2015 Certified facility. These facilities go through several audits to ensure quality standards in the manufacturing process.
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Product Features:
- New, with Clutch, with 7SB16C Compressor
- Each new compressor design undergoes rigorous life cycle testing at high RPMs and pressures to ensure that they can withstand years in the harshest conditions.
- New compressors are designed with utmost precision using 3D coordinate measuring machines to ensure a perfect fit.
- The production process contains automated controls at every stage that alerts and halts production in case of an error, assuring that the finished product will always be flawless.
- All new compressors must pass a helium leak test and pump up function test prior to packaging.
- O-Rings and gaskets necessary for installation are included.
- New Compressors meet or exceed OE specifications
- New Compressors are validated for the equivalent of 100,000 miles
- New Compressors come pre-charged with 3 ounces of PAG oil for R134a or R1234yf applications
- New Compressors come with direct fit connectors for ease of installation and to help eliminate splicing
- New Compressors come with the R12/R134A/1234yf required O-rings /sealing washers to install the compressor
Carquest Premium – A/C Condenser (Part No.714923)
from
$167.99
The Carquest condenser is an integral component of the motor vehicle air conditioning system. This part condenses the refrigerant into a liquid to prepare it for entry into the compressor. The condenser is manufactured according to OEM design specifications to ensure a long life with quality performance. Exact design standards produce a seamless fit into the engine compartment.
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Product Features:
- This is a parallel flow condenser that contains small micro-channels. It is highly recommended that this condenser be replaced if a failure has occurred in the vehicle’s air conditioning system that has resulted in debris contaminating the system.
- The Carquest condenser production process includes quality driven details such as using zinc-coated tubes and electrostatic paint spray at high temperatures to provide the best corrosion resistance and durability in our condensers.
- Continuous molds, laser welding machines, semi-automatic assembly stations and other advanced equipment provide quality products.
- Each condenser uses only the highest quality raw materials including pure aluminum (not substandard or recycled) to provide the highest quality standards from beginning to finished product.
- All brackets are designed per OEM specifications to ensure strength and reduce vibration and movement.
- We leak test 100% of our condensers in helium leak test chambers to ensure the product does not leak.
- Our condensers are manufactured from rigid design standards to fit OEM dimensions.
- Each condenser design endures a series of tests that includes performance testing, vibration testing, blast testing, and salt spray testing to simulate real world conditions.
- Each Carquest condenser is packaged using superior box construction. This box is easy to open and seal. Each condenser is packaged in the box with internal protection to keep the part centered and away from the package edges.
Carquest Premium – A/C Plate and Fin Evaporator (Part No.T54909)
from
$117.99
Carquest Evaporators are designed to remove heat from the air inside the passenger compartment of a vehicle resulting in cooler air temperatures. They are manufactured to meet or exceed original equipment specifications and are designed to easily fit into the engine compartment.
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Product Features:
- The design and manufacture of the evaporators result in uniform refrigerant distribution with optimal flow for improved performance and maximum heat transfer.
- The evaporators are constructed to offer a lightweight, compact design that will fit easily within the engine compartment.
- The surface treatment on each part ensures optimum water drainage to prevent mold and odors in the system.
- The evaporators are 100% tested to meet or exceed original equipment specifications. Each part is helium tested to ensure no leaks.
- O-Rings and gaskets necessary for installation are included.
URO Parts – A/C Safety Switch (Part No.8D0959482B)
from
$25.99
URO Parts has been a leading brand of replacement auto parts for European vehicles for more than thirty years. Affordable yet dedicated to quality, URO Parts controls its production process in strict accordance with ISO/TS 16949 QMS specifications and offers a wide variety of components used to restore or repair engine, electrical, drive train, braking, steering, suspension, climate control, cooling, exhaust, and fuel systems in classic to late-model German, British, and Scandinavian vehicles. Looking for parts that are even higher quality than original equipment? URO Parts engineers analyze common failures and identify weaknesses in original equipment parts when creating URO Premium components, which are superior to OE in performance and reliability thanks to improved materials and more robust designs. Thanks to high-quality, competitively-priced URO Parts and bulletproof URO Premium replacement components, owning a prestigious European vehicle is no longer an expensive luxury reserved for the elite and wealthy.
Product Features:
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Product Features:
- Guaranteed Fitment
- High Quality Materials
- Designed and tested to provide a long life
- Guaranteed fitment
- Replacement of failed OE air conditioning safety switch restores proper system operation
- Direct-fit replacement design is easily installed
- Easy plug-and-play wiring connection
- Manufactured using high-quality polymer and corrosion-resistant metal materials to withstand A/C system temperature cycling
- Alloy conductors minimize electrical resistance for accurate operation
DENSO – A/C Compressor with Clutch – New (Part No.471-1260)
from
$526.99
As one of the world’s largest OE suppliers of A/C compressors DENSO units are specified by most major vehicle manufacturers. DENSO First Time Fit A/C compressors are manufactured and tested to the strictest OE standards for unparalleled performance. At DENSO we bring together everything we know as an air conditioning systems manufacturer to bring you the highest quality line of factory-new compressors available. When it comes to new compressors you can’t do better than going with a unit manufactured by the OE supplier. At DENSO we know these units better than anyone because we originally designed them. Our compressors are built to meet DENSO’s unsurpassed reputation for technological superiority. You can relax knowing DENSO will give you the right part and the right fit the first time.
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Product Features:
- DENSO is the world’s largest OE supplier of A/C compressors
- Each compressor is precision manufactured for exact replacement
- Designed for high output and extended durability
- Highest quality in the Aftermarket
Carquest Standard – Remanufactured Air Conditioning Compressor with Clutch (Part No.DW67451)
from
$307.99
Our products are engineered and tested to provide years of trouble free operation. Backed by over 50 years of mobile a/c experience, fix it once and fix it right with Carquest.
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Product Features:
- Built in a TS16949 certified manufacturing environment to ensure consistent quality that meets or exceeds OE specifications for fit, form, function and durability
- All remanufactured compressors are built using the latest compressor technology available today and using strict remanufacturing processes
- All units have new seals, O-rings, gaskets and clutch bearings
- Tested for noise, vibration, durability, vacuum decay and pressure decay to ensure no leaks and longer life
- Remanufactured compressors are 100 percent tested to ensure compressor function and noise level meets or exceeds OE specifications
- Remanufactured compressors come pre-charged with 3 ounces of PAG oil for R134a or R1234yf applications
- Remanufactured compressors are individually vacuum and pressure tested to ensure no leaks
- Remanufactured compressors come with the R12/R134A/1234yf required O-rings /sealing washers to install the compressor
- Remanufactured Compressors are built in a ISO9001:2015 Certified facility to ensure consistent quality standards in the Re-manufacturing process
Carquest Premium – Engine Cooling Fan Resistor (Part No.RUC1678)
from
$225.99
The Engine Cooling Fan Resistor is part of the radiator and A/C condenser fan system operation. The engine computer will use the resistor to control the operating speed of the fan motor to achieve a lower fan speed during certain vehicle operating conditions.
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Product Features:
- Application matched components ensure the cooling fan system can be returned to like new condition.
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
Delphi – ABS Wheel Speed Sensor (Part No.SS20038)
from
$200.99
Delphi’s ever growing portfolio of high quality vehicle sensors are backed by stringent OE development and product validation methods. We offer a wide range of sensors, including ABS, camshaft, crankshaft, knock, EGT, MAP, temperature, throttle position, and vehicle speed sensors for a variety of vehicle applications. All of our sensors are tested and calibrated to OE standards, ensuring accurate readings, which helps to reduce comebacks.
Product Features:
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Product Features:
- Delphi sensors are built to meet or exceed OE requirements and testing
- Delphi has improved the OE design by plating the connectors to help prevent corrosion and failure commonly caused by internal and cable short circuits
- Delphi’s OE design helps by preventing mechanical damage to the sensor wheel, soiling and increased wheel bearing free play
- Speed sensors maintain optimal performance during drastic temperature changes for robust, long-lasting sensor protection
- Designed digital output for maximum signal to noise ratio
Carquest Premium – A/C Suction Line Hose Assembly (Part No.T55436)
from
$198.99
Carquest Hose Assemblies are designed to carry refrigerant in an air conditioning system. They are manufactured to meet or exceed original equipment specifications and are designed to easily fit into the engine compartment.
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Product Features:
- 100% of hose assemblies use Goodyear hoses that meet original equipment specifications for wall thickness and permeation.
- Tubes and mufflers are designed to meet original equipment specifications for wall thickness.
- Fittings are designed to couple and seal to eliminate leaks. Trivalent plating is used on steel fittings to enhance corrosion resistance. The fittings conform to original equipment specifications to allow for the proper fit with related A/C components.
- Welds and crimps meet and exceed original equipment tension specifications.
- Manufactured to allow flexibility in the hose to conform to engine compartments.
- O-Rings necessary for installation are included.
Delphi – ABS Wheel Speed Sensor (Part No.SS20004)
from
$183.99
Delphi’s ever growing portfolio of high quality vehicle sensors are backed by stringent OE development and product validation methods. We offer a wide range of sensors, including ABS, camshaft, crankshaft, knock, EGT, MAP, temperature, throttle position, and vehicle speed sensors for a variety of vehicle applications. All of our sensors are tested and calibrated to OE standards, ensuring accurate readings, which helps to reduce comebacks.
Product Features:
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Product Features:
- Delphi sensors are built to meet or exceed OE requirements and testing
- Delphi has improved the OE design by plating the connectors to help prevent corrosion and failure commonly caused by internal and cable short circuits
- Delphi’s OE design helps by preventing mechanical damage to the sensor wheel, soiling and increased wheel bearing free play
- Speed sensors maintain optimal performance during drastic temperature changes for robust, long-lasting sensor protection
- Designed digital output for maximum signal to noise ratio
Carquest Premium – ABS Wheel Speed Sensor (Part No.ARA1376)
from
$174.99
Advance Auto Parts is committed to providing high-quality ABS sensors. The entire manufacturing process is closely managed to deliver high quality products.
Product Features:
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Product Features:
- High grade materials that are equal to or better than OE provide durability and long service life
- All ABS sensors are tested for proper fit, form, and function
- Wire diameter and sheathing same or larger than OE to ensure product quality
- Glass filled reinforced plastic for superior resistance to automotive fluids, dirt, salt and road debris
- Includes all necessary brackets and hardware
Dorman – Anti-Lock Braking System Wheel Speed Sensor (Part No.970-318)
from
$164.99
This direct replacement ABS wheel speed sensor matches the fit and function of an original equipment sensor. Made of quality materials with factory-style electrical connectors, this sensor has been designed and tested to be durable and reliable.
Product Features:
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Product Features:
- Ideal replacement – this ABS wheel speed sensor exactly matches the fit and function of the original equipment sensor to restore safe braking performance in all conditions
- Durable construction – this wheel speed sensor is made from quality materials to ensure a reliable repair and a long service life
- Cost-effective solution – offers original equipment quality at a competitive price
- Quality tested – this ABS sensor has undergone try-on and material testing to ensure a quality fit and reliable performance
Carquest Premium – Multi-Purpose Relay (Part No.RAA2906)
from
$159.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
Product Features:
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Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
- Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
- 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Top Picks for 1999 Audi A4 Blend Doors
Upgrade Audi A4s with top-quality Blend Doors parts, including 3 OEM and aftermarket selections for your 1999 model.
Dorman – HVAC Blend Door Actuator: 1 Piece (Part No.604-850)
from
$143.99
This air door actuator directly replaces the original actuator on specific vehicle years, makes, models, configurations and positions to restore proper HVAC operation. Please note that many vehicles have several different air door actuators, which are designed for specific positions and functions in the vehicle. To ensure you have what you need, carefully review the application notes for this part to verify it matches the position and function of the actuator you need to replace. In some online ordering systems, you may need to enter your vehicle information first to see the application notes for your vehicle. If you don’t know which actuator position you need to replace, consult a qualified service technician.
Product Features:
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Product Features:
- Direct replacement – made to match the fit and function of the original air door actuator on certain vehicle years, makes, models and configurations
- Position specific – vehicles often have multiple different HVAC door actuators; review this part’s application notes to verify it matches the location and function of the actuator you need to replace
- Durable construction – designed and tested to strict standards to help resist wear and electrical burnout for reliable operation and long service life
- Trustworthy quality – backed by a team of experts and engineers in the United States, and more than a century of experience
Dorman – HVAC Blend Door Actuator: 1 Piece (Part No.604-830)
from
$156.99
This air door actuator directly replaces the original actuator on specific vehicle years, makes, models, configurations and positions to restore proper HVAC operation. Please note that many vehicles have several different air door actuators, which are designed for specific positions and functions in the vehicle. To ensure you have what you need, carefully review the application notes for this part to verify it matches the position and function of the actuator you need to replace. In some online ordering systems, you may need to enter your vehicle information first to see the application notes for your vehicle. If you don’t know which actuator position you need to replace, consult a qualified service technician.
Product Features:
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Product Features:
- Direct replacement – made to match the fit and function of the original air door actuator on certain vehicle years, makes, models and configurations
- Position specific – vehicles often have multiple different HVAC door actuators; review this part’s application notes to verify it matches the location and function of the actuator you need to replace
- Durable construction – designed and tested to strict standards to help resist wear and electrical burnout for reliable operation and long service life
- Trustworthy quality – backed by a team of experts and engineers in the United States, and more than a century of experience
Dorman – HVAC Blend Door Actuator: 1 Piece (Part No.604-829)
from
$144.99
This air door actuator directly replaces the original actuator on specific vehicle years, makes, models, configurations and positions to restore proper HVAC operation. Please note that many vehicles have several different air door actuators, which are designed for specific positions and functions in the vehicle. To ensure you have what you need, carefully review the application notes for this part to verify it matches the position and function of the actuator you need to replace. In some online ordering systems, you may need to enter your vehicle information first to see the application notes for your vehicle. If you don’t know which actuator position you need to replace, consult a qualified service technician.
Product Features:
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Product Features:
- Direct replacement – made to match the fit and function of the original air door actuator on certain vehicle years, makes, models and configurations
- Position specific – vehicles often have multiple different HVAC door actuators; review this part’s application notes to verify it matches the location and function of the actuator you need to replace
- Durable construction – designed and tested to strict standards to help resist wear and electrical burnout for reliable operation and long service life
- Trustworthy quality – backed by a team of experts and engineers in the United States, and more than a century of experience
In-Demand Engine Cooling Parts for 1999 Audi A4s
Select from 42 premium Engine Cooling Parts parts for your 1999 Audi A4, with prices ranging from $2.49 to $338.99.
Carquest Premium – Standard Reservoir Cap: 20 PSI (Part No.10249)
from
$13.99
Crafted to meet the exact specifications set by Original Equipment Manufacturers (OEM), these products are engineered for effortless installation and removal. Constructed from premium-grade components, incorporating proper relief and vacuum valves, they ensure optimal performance even in the most demanding automotive cooling systems. Rigorously quality-tested, these components provide exceptional, out-of-the-box performance and superior durability to meet or exceed the highest standards of today’s vehicles.
Product Features:
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Product Features:
- Maintains proper cooling system pressure
- Easy installation and removal
- 100% tested to ensure proper pressure and longevity
- Meets all OEM specifications
Motorad UltraStats – UltraStat Thermostat: 192 Degrees (Part No.5475-190)
from
$22.99
This premium upgraded thermostat is everything you were looking for. UltraStat Thermostats are the toughest thermostats on the market. All heavy gauge stainless steel construction provides long-life durability, as well as complete corrosion resistance. Exclusive BLVT Valve technology minimizes thermal shock to cooling system components. This is the perfect upgrade to help insure your cooling system is working exactly as you need and expect it to for longevity.
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Product Features:
- Exclusive BLVT Valve Technology minimizes thermal shock to cooling system components
- Heavy gauge stainless steel components offer increased reliability and long-lasting durability
- Stainless steel thermal element for unmatched corrosion resistance and revolutionary REAX wax mixture provides quicker reaction time
- AccuSpring Design for stable temperature control and increased cabin comfort
MAHLE Original – Engine Coolant Thermostat Housing Gasket (Part No.C31633)
from
$2.49
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
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Product Features:
- All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
- MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
- MAHLE gaskets is the leader in Domestic, Asian and European applications
- The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
Carquest Premium – Standard Thermostat: 190 Degrees (Part No.14419)
from
$17.29
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Felpro – Multi-Purpose O-Ring (Part No.25598)
from
$2.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
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Product Features:
- Meets or exceeds all original equipment specifications
- Application specific, providing unsurpassed quality for a seal you can trust
- Validated for fit, form, and function
- Engineered for the sealing repair environment
- Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
Beck/Arnley – Water Pump Gasket (Part No.039-0033)
from
$2.49
Beck/Arnley parts meet foreign nameplate OE specifications for form, fit and function. Our product specialists work with a network of global sourcing partners so you can install the right part with confidence.
Product Features:
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Product Features:
- Matches OE form, fit and function
- Made from premium materials for durability
- Designed for underhood conditions
- Packaged in clear plastic for easy visibility and identification of all components
- Application specific for this vehicle
Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.432554)
from
$216.99
Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.
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Product Features:
- Thermal tested under real-life temperature simulations
- High tensile strength aluminum for maximum crimp strength
- Plastic tanks are engineeredáwith integrated ribbingáfor addedástrength to withstand cracks, bowing and distortion during thermal cycles
- Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles
Dorman – Pressurized Coolant Reservoir: White, Plastic, Original Equipment Replacement (Part No.603-703)
from
$51.99
This replacement engine coolant reservoir is manufactured from quality materials to withstand the stresses of underhood heat and engine vibration. It is engineered and manufactured to match the fit and function of the original part.
Product Features:
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Product Features:
- Direct replacement – this engine coolant reservoir matches the fit and function of the original part
- Ideal solution – engineered for a seamless installation
- Durable construction – manufactured from quality materials to withstand underhood heat and vibration
- Trustworthy design – backed by 100 years of automotive aftermarket experience
Carquest Premium – Radiator: With Transmission Oil Cooler (Part No.432598)
from
$185.99
Carquest Premium radiators are designed and engineered for maximum performance, using the highest-grade materials to ensure all radiators meet or exceed original equipment (O.E.) fit, form and function. Carquest Premium radiators are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Most modern vehicles use radiators with plastic tanks and our parts are engineered with integrated ribbing to prevent damage during thermal cycling. Carquest Premium radiators are also 100% tested to ensure a durable, leak-free cooling system repair.
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Product Features:
- Thermal tested under real-life temperature simulations
- High tensile strength aluminum for maximum crimp strength
- Plastic tanks are engineeredáwith integrated ribbingáfor addedástrength to withstand cracks, bowing and distortion during thermal cycles
- Thermal expansion slots extend core life and reduce failure rates by allowing improved core expansion and contraction during systematic heat cycles
Rein – Temperature Sensor Kit (Part No.ELC0051P)
from
$20.99
Electrical parts control all aspects of vehicles on the road today. Replacing these components when they are starting to fail will ensure your vehicle has maximum performance and fuel economy. This is why Rein Automotive electrical parts are application specific and match the design and function of the OE parts.
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Product Features:
- Tested to ensure maximum performance
- Manufactured to strict engineering standards/specifications in materials and tolerances
- Long life and durability
- Made by the OE manufacturer
NTK – Engine Coolant Temperature Sensor (Part No.EF0079)
from
$34.99
The Engine Coolant Temperature Sensor determines the exact temperature of the engine coolant by sending an analog signal to the ECM to ensure proper air/fuel ratio along with proper operation of the cooling fans and temperature gauge. The Engine Coolant Temperature Sensor may be located on the cylinder head, engine block, thermostat housing or intake manifold. Reasons for replacement include, check engine light illumination, erratic or no temperature gauge operation, erratic or no cooling fan operation, and engine overheating.
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Product Features:
- OE MATCHED: Wires and probe length match OE. Mounting clips included where applicable
- FASTER RESPONSE TIME: Thermal conductive grease inside brass housing increases sensor response time
- THE DIFFERENCE: Thread sealant/o-ring installed where applicable. Thermistor placement within the housing matches OE to ensure proper output. Proper thermal conductive grease to provide accurate temperature transfer to the thermistor
Motorad – Standard Thermostat: 180 Degrees (Part No.304-180)
from
$25.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Carquest Premium – Standard Thermostat: 198 Degrees (Part No.14099)
from
$17.99
Carquest Premium Thermostats are manufactured with OEM quality materials and safety standards by an OE Supplier. This thermostat will meet and exceed the expectations of the OE thermostat to insure the best product for your cooling system. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Motorad – Standard Thermostat: 170 Degrees (Part No.304-170)
from
$22.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Stands up to even the most demanding automotive cooling systems. Manufactured with OEM specifications and processes. Copper case and wax compound assures rapid response to temperature changes in the coolant. Offset design, air relief valve, and OEM style seals included where applicable.
Product Features:
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Product Features:
- High grade stainless steel and copper construction
- Meets or exceeds OEM standards
- Consistent and precise response to cooling system needs
- Original equipment design for worry-free direct fit replacement
- 100% tested and calibrated
Rein – Thermostat Insert 87C (Part No.CTI0006)
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$16.99
Rein Automotive OE quality thermostat inserts install, fit and perform the way the original manufacturer intended. This ensures a smooth and easy installation, just as one would expect to find with OE quality. These inserts are designed to meet or exceed the OE materials used. Rein thermostats are produced with high-quality metals and components to ensure proper durability and service life. The thermostats are temperature calibrated to have a consistent and precise response suiting cooling system needs. Our quality thermostat inserts aim to provide the profession repair technician and vehicle owner peace of mind and trust that is expected from an OE quality component.
Product Features:
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Product Features:
- Matches original equipment design specifications
- All gaskets or seals necessary for installation are supplied with thermostats
- Manufactured to strict engineering standards/specifications in materials and tolerances
- Thermostat set to 87 degrees Celsius to maintain optimal running temperature
Dorman – Engine Coolant Water Outlet (Part No.902-886)
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$11.79
This replacement engine coolant water outlet is engineered to match the fit and durability of the stock engine coolant water outlet on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.
Product Features:
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Product Features:
- Ideal replacement – this engine coolant water outlet directly replaces the original water outlet on specified vehicle years, makes and models
- Durable construction – this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
- Cost-effective and reliable – offers original manufacturer quality at lower cost than getting replacement at dealer
- Industry-leading design – professionally engineered by the aftermarket leader in replacement water outlets
Felpro – Multi-Purpose O-Ring (Part No.35763)
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$4.49
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
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Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design to ensure a perfect fit
- Engineered and manufactured specifically for the repair environment
- Unsurpassed quality you can trust
- Each Fel-Pro gasket, no matter how small, is engineered to exacting standards with proprietary design, engineering and manufacturing processes
Felpro – Multi-Purpose O-Ring (Part No.25589)
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$3.99
Fel-Pro® gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
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Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design
- Manufactured for the sealing repair environment
- Validated for fit, form, and function
- Quality that you can trust
Carquest Premium – Universal Fan Clutch – 5" Thermal Import/Compact (Part No.215069)
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$175.99
Product Features:
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- Designed, tested, and built by application
- OE performance, fit, and appearance
- Precision machined
- Out of box installation
Carquest Premium – Coolant Temperature Sensor 1TS1043 (Part No.WTC1143)
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$24.99
Product Features:
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- Designed to meet or exceed OE specifications for fit, form and function
- 100% factory resistance calibrated to ensure precision tolerances, resulting in extremely accurate temperature for optimal performance
- OE precision matched thermistor ensuring Carquest sensors match OE output resistances across all temperature positions
- O-rings, seals or thread sealant are included if required
- Weather-tight connectors prevent leaks and corrosion for longer life
- Extensive design validation testing and 100% end-of-line tested
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Dorman – Radiator Fan Assembly: Single, Cost Effective and Reliable (Part No.620-800)
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$142.99
This engine cooling fan assembly is precision-engineered to match the fit and performance of the stock radiator fan on specific vehicle years, makes and models. It has been rigorously tested to ensure it cools as effectively as the original part.
Product Features:
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Product Features:
- Ideal replacement – this engine cooling fan assembly was precision-engineered to match the fit and performance of the stock radiator fan assembly on specific vehicles
- Complete package – assembly is designed with the same materials and components as the original part
- Quality assured – motors are tested in laboratory settings to ensure performance
- Cost effective and reliable – trustworthy manufacturing for far less than same part at the dealership
Felpro – Engine Water Pump Gasket (Part No.35549)
from
$17.29
Fel-Pro gaskets are specifically designed for the repair environment to deliver a reliable seal on even the most troublesome applications. Designed for imperfect sealing surfaces and manufactured with proprietary materials, you can count on Fel-Pro for innovative sealing solutions for the real-world repair environment.
Product Features:
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Product Features:
- Meets or exceeds all original equipment specifications
- Application specific design
- Manufactured for the sealing repair environment
- Validated for fit, form, and function
- Quality that you can trust
Rein – Temperature Sensor Kit (Part No.ELC0047P)
from
$12.99
Electrical parts control all aspects of vehicles on the road today. Replacing these components when they are starting to fail will ensure your vehicle has maximum performance and fuel economy. This is why Rein Automotive electrical parts are application specific and match the design and function of the OE parts.
Product Features:
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Product Features:
- Tested to ensure maximum performance
- Manufactured to strict engineering standards/specifications in materials and tolerances
- Long life and durability
- Made by the OE manufacturer
Carquest Premium – Multi-Purpose Relay (Part No.RAC2066)
from
$338.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.
Product Features:
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Product Features:
- Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
- Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
- Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
- Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
- 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
- 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
Most Sold 1999 Audi A4 Blower Motor and Related Products
Explore our best-selling Audi parts for the 1999 A4 among 1 OEM and aftermarket options starting from $491.99.
Carquest Premium – HVAC Blower Motor Resistor (Part No.RUC1952)
from
$491.99
Carquest Premium blower motor resistors are designed to restore proper functionality in the HVAC system while meeting or exceeding original equipment (O.E.) specifications. Carquest Premium blower motor resistors are built by manufacturers that meet IATF 16949 certified framework, an internationally recognized proof of quality in the automotive industry. Carquest Premium blower motor resistors undergo extensive validation testing to ensure long-lasting performance and reliability. Carquest Premium blower motor resistors are part of our Carquest Vehicle Solutions, which is a full line of engine management and electronics products that help control ignition, fuel delivery and emission systems. Carquest Vehicle Solutions are OE-quality parts designed, engineered and tested by world-class manufacturers to ensure a reliable and long-lasting repair.
Product Features:
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Product Features:
- Designed to meet or exceed OE specifications for fit, form and function
- Manufactured with high quality materials, industry-leading electronic components and strict quality controls
- Extensive design validation testing and 100% end-of-line tested
- Gaskets or seals are included if required
- Carquest Vehicle Solutions Technical Support available from ASE certified technicians: 1-866-687-5413
Top-Rated Cooling and Climate Controls Brands For Your 1999 Audi A4
Shop for the best-rated brands offering Cooling and Climate Controls and other products for your 1999 Audi A4s. Below you’ll find some of our best rated Cooling and Climate Controls from Carquest Premium, Factory Air, and Mahle, and more. Cooling and Climate Controls from these brands that fit a 1999 A4 start at just $2.49 and are rated as high as 4.4 stars. OEM and aftermarket Cooling and Climate Controls don’t get more top quality, durable, and affordable than from the brands below.
Popular Carquest Premium 1999 Audi A4 Cooling and Climate Controls
When it comes to maintaining or upgrading your 1999 Audi A4, using quality Cooling and Climate Controls is essential to ensure durability and a perfect fit. Carquest Premium ticks all of those boxes. We offer a wide selection of Carquest Premium Cooling and Climate Controls, specifically designed for the 1999 Audi A4. With over 3 Carquest Premium brand Cooling and Climate Controls in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $13.99, with an average price of just $29.99. Plus, with over 101 customer reviews and an average rating of 4.4 stars, you can trust that our Carquest Premium Cooling and Climate Controls will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
Popular Factory Air 1999 Audi A4 Cooling and Climate Controls
Factory Air auto parts is one of the highest quality Cooling and Climate Control brands in the market. Any 1999 Audi A4 owner should feel confident when installing genuine Factory Air parts in their vehicle. To ensure the best fit and performance for your 1999 A4, Advance Auto Parts carries a full inventory of 2 Factory Air Cooling and Climate Controls. Plus you will be keeping your Audi in peak condition while saving money because prices on these Factory Air Cooling and Climate Controls range from $21.99 to $26.99, plus, with more than 30 customer reviews and an impressive 4.4 stars average rating, you can be confident the Fram Cooling and Climate Controls below will deliver on both quality and value.
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$26.99
(1)
O-Ring & Gasket A/C System Seal Kit
“I only needed 2 of these, but now have a bunch of extras. They fit my MK4 Jetta a/c drier.”
FAQs for 1999 Audi A4 Cooling and Climate Controls
Which Cooling and Climate Controls are best-sellers for 1999 Audi A4s?
Out of 78 Cooling and Climate Controls that fit 1999 Audi A4s, the following parts are the top sellers:
- Cap & Valve A/C System Seal Kit (15890310) – $21.99
- Standard Thermostat: 190 Degrees (17650017) – $17.29
- Standard Reservoir Cap: 20 PSI (5020080) – $13.99
What’s the price range for 1999 Audi A4 Cooling and Climate Controls?
Cooling and Climate Control prices for the 1999 Audi A4 start at $0.99 and go up to $526.99 for the most premium parts.
What’s the average price of a Cooling and Climate Control for a 1999 Audi A4?
The average price for Cooling and Climate Controls for the 1999 Audi A4 is $95.53. Keep in mind the variety of part types within our Cooling and Climate Control category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Cooling and Climate Controls for other Audi A4 model years?
What are the cheapest Cooling and Climate Controls for my 1999 Audi A4?
The cheapest 1999 Audi A4 Cooling and Climate Controls we carry in stock are:
- Green Round O-Ring (sold by each) (18890254) – $0.99
- Green Round O-Ring (sold by each) (18890169) – $1.99
- A/C Orifice Tube (11745065) – $1.99
- Water Pump Gasket (18024940) – $2.49
- Engine Coolant Thermostat Housing Gasket (10307383) – $2.49
What are the top-rated Cooling and Climate Controls that fit the 1999 Audi A4?
Out of 579 reviews by customers, our 1999 Audi A4 Cooling and Climate Controls have an average customer rating of . These are some of the highest-rated Cooling and Climate Control types for the 1999 Audi A4 and their top-rated products:
- Engine Cooling Parts
- Engine Coolant Thermostat Housing Gasket (10307383) – $2.49
- Standard Reservoir Cap: 20 PSI (5020080) – $13.99
- UltraStat Thermostat: 192 Degrees (11920663) – $22.99
What types of Cooling and Climate Controls do you sell for my 1999 Audi A4?
As of 11/2/25, these are some of the most in-demand types of Cooling and Climate Controls for a 1999 Audi A4:
Can I get help with 1999 Audi A4 Cooling and Climate Control orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Audi Cooling and Climate Controls and more.
What is your return policy for Audi A4 Cooling and Climate Controls?
Advance Auto Parts keeps returns simple. For new Audi A4 Cooling and Climate Controls and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
