2001 Audi S4 Air Conditioning Parts

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:

• 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

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:

• 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

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.

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.

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.

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

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.

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

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.

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 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:

• 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 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:

• 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 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:

• 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.

New Standard Replacement A/C Orifice Tube, V8 Engine

Product Features:

• V8 Engine
• 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

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:

• 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 A/C Accessories provide a comprehensive offering of premium quality fittings and tools to service all aspects of an a/c service from the most simple fitting replacement to complex diagnostics required for late model applications.