2018 Audi A4 allroad Fuel and Emissions Systems
Find Your Specific 2018 Audi A4 allroad Fuel and Emissions Systems
Below you will find various in-demand Audi Fuel and Emissions Systems, components and accessories for your 2018 A4 allroad. Advance Auto Parts has popular A4 allroad parts like Oxygen Sensors, Fuel Pumps, Gas Caps and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other A4 allroad model years including
2017,
2019,
2020,
2021,
2022,
2023,
2024,
2025 and more. Select a category of 2018 Audi A4 allroad Fuel and Emissions Systems below and start saving instantly.
Popular 2018 Audi A4 allroad Fuel and Emissions Systems Categories
Essential Fuel and Emissions Systems for 2018 Audi A4 allroads
Carquest Premium – Premium GDI Seal Tool Kit (Part No.ATK-001)
from
$129.99
This premium tool kit is designed to ensure the correct installation of the combustion seal on Gasoline Direct Injectors (GDI), which require replacement any time the injector is reinstalled. This special tool allows for the expansion of the combustion seal to allow installation onto the injector’s tip and resizing tools to provide precise dimensioning to ensure proper combustion sealing. Constructed of high-quality stainless steel the tool will provide years of trouble-free service and can be used on over 100 unique styles of GDI injectors.
Product Features:
See More
Product Features:
- Includes two expansion cones
- Includes two resizing tools
- Includes one seal installation collet
- Includes hard case
- Includes instruction manual
Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECA2483)
from
$218.99
CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.
Product Features:
See More
Product Features:
- CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
- CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
- CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.
Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECA2453)
from
$101.99
CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.
Product Features:
See More
Product Features:
- CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
- CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
- CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.
Delphi – Fuel Tank Cleaning Kit (Part No.FC01)
from
$12.49
When replacing a fuel pump or module, it’s extremely important to clean the tank. Existing dirt, debris, and contamination stuck in the fuel tank can clog the brand-new strainer. Delphi’s Fuel Tank Cleaning Kit (FC01) and Tool (FC02) can help clean your fuel tank in less than five minutes. The FC01 includes a low-suds solution, cloth, and gloves that works together with the FC02 to help clean those hard to reach places without having to remove the fuel tank. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.
Product Features:
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Product Features:
- Helps avoid premature fuel pump failure
- Lint free towel included
- Low suds formulation
- Removes harmful contaminants from the fuel tank
Carquest Premium – Fuel Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10844)
from
$40.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
Product Features:
See More
Product Features:
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
Delphi – Direct Injection High Pressure Fuel Pump: Without Gasket/Seal or Wiring Harness (Part No.HM10049)
from
$405.99
Demand for Gasoline Direct injection (GDi) technology globally is expected to grow in excess of 10 percent annually through 2026. Delphi uses the latest generation of OE technology for our GDi, and our GDi service program includes the OE parts, tools and know-how to service this fast-growing, high-performance technology. Delphi is a leading Tier 1 supplier of GDi systems to global OEMs. We offer multiple GDi specific training classes, a technician support hotline staffed by ASE certified technicians, and a full line of GDi high-pressure fuel pumps. Learn more about our training programs and tech hotline at 1-877-463-3574.
Product Features:
See More
Product Features:
- Capable of delivering fuel at high pressures that can range from 2,000-2,800 PSI
- Mechanically driven high fuel flow pump enables rail pressure build up quickly for fast start times
- Fuel delivered directly into the engine combustion chamber for increased horsepower and fuel economy
- Meets OE specifications
Delphi – Fuel Pump Module Assembly (Part No.FG2093)
from
$459.99
Delphi is a Tier 1 supplier to the majority of global vehicle manufacturers and has been a manufacturer of dependable fuel pumps and fuel delivery parts for over 80 years. With over 30 OE-proprietary innovations and 150 patents in fuel technologies, Delphi is regarded as a market leader in North American fuel management with sales coverage at over 95%. Learn more about our expert-led training programs and tech hotline at 1-877-463-3574. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.
Product Features:
See More
Product Features:
- Delphi is a global OE manufacturer and all fuel pumps are built to Delphi’s OE standards
- Empty float height and float retention matches OE specifications and guarantees correct gas gauge reading
- Lower amperage draws less load on vehicle’s electrical system
- Part is validated, tested and matched to the right vehicle application
- Always be sure to check and clean fuel tank to avoid unnecessary returns
- Lower failure rates due to its innovative design and durability
DENSO – Wideband Oxygen Sensor: Upstream, 5 Wire, 28.82" Long, Heated, Exact Fit (Part No.234-5019)
from
$246.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance.; Each component is precision-built for exact replacement¿ and a first time fit.; DENSO gives you the right part and the right fit¿ the first time.
Product Features:
See More
Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100 percent checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
DENSO – Air-Fuel Ratio Sensor 4 Wire, Direct Fit, Heated, Wire Length: 22.83" (Part No.234-5738)
from
$227.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit.
See More
DENSO – Wideband Oxygen Sensor: Upstream, 5 Wire, 17.05" Long, Heated, Exact Fit (Part No.234-5163)
from
$186.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision-built for exact replacement and a first time fit. DENSO gives you the right part and the right fit.
Product Features:
See More
Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100 percent checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
Carquest Premium – Fuel Injector Seal Kit (Part No.AS070)
from
$17.99
CARQUEST fuel injector seal kits include the necessary o-rings and seals to properly reseal the injector, which is a recommended practice any time the injector is removed. Each kit services one injector and includes hard to find or previously dealer-only components.
Product Features:
See More
Product Features:
- Premium OE quality materials.
- Services one injector.
Carquest Premium – Remanufactured Fuel Injector (Part No.A512-1155)
from
$69.99
CARQUEST’s line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the U.S.A. Each injector is 100% tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function. Each injector includes new external seals and o-rings.
Product Features:
See More
Product Features:
- Each unit is 100% tested to OE specifications.
- Includes new o-rings and seals made of premium OE quality materials.
- Includes application specific technical bulletin, where applicable.
Carquest – Fuel Injector Seal Kit (Part No.274831)
from
$16.05
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
Product Features:
See More
Product Features:
- Designed to OE standards for ease of installation
- High-quality materials withstand extreme conditions
- Undergoes extensive testing to ensure reliability
- As a global manufacturer of automotive aftermarket products, we maintain complete quality control throughout the manufacturing process
Upgrade your 2018 Audi A4 allroad with Top-Quality Fuel and Emissions Systems
When it comes to maintaining or upgrading your 2018 Audi A4 allroad, 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, Fuel and Emissions Systems are key to keeping your A4 allroad functioning at its best. At Advance Auto Parts, we offer a wide selection of 11 Fuel and Emissions Systems for the 2018 Audi A4 allroad, designed to meet your needs without breaking the bank.
From
Oxygen Sensor
replacements to
Fuel Pumps
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 Fuel and Emissions Systems for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Fuel and Emissions Systems for your 2018 Audi A4 allroad at great prices.
Our Fuel and Emissions Systems inventory for this model
ranges from just $12.49 to $459.99, with
an average price of $170.50.
Our 11 Fuel and Emissions Systems in stock come from 5 trusted brands, so you’re sure to find the right part for your 2018 Audi A4 allroad 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 2018 Audi A4 allroad, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names
like Carquest, and more.
Carquest Fuel and Emissions Systems
start at just $16.05 and boast an impressive 4.4 stars average rating from customers.
With 3 customer reviews and counting, our 2018 Audi A4 allroad Fuel and Emissions Systems 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 Fuel and Emissions System upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 2018 Audi A4 allroad is always ready to roll. We’re committed to providing you with everything you need to keep your A4 allroad in top shape, all in one place.
Start shopping confidently below for your 2018 Audi A4 allroad!
Best-Selling Oxygen Sensors for 2018 Audi A4 allroads
Enhance the driving experience in your Audi with 1 quality Oxygen Sensor components, starting at $168.99.
DENSO – Oxygen Sensor: 4 Wire, Direct Fit, Heated, Wire Length: 20.47" (Part No.234-8062)
from
$168.99
DENSO Oxygen Sensors are manufactured and tested to the strictest OE standards for unparalleled performance. Each component is precision built for exact replacement, and a first time fit. This innovative line features DENSO’s exclusive aluminum oxide trap layer, designed to protect the ceramic element from silicone and lead poisoning for improved engine performance, greater fuel efficiency, and unparalleled longevity. DENSO gives you the right part and the right fit.
See More
Most Popular 2018 Audi A4 allroad Fuel Pumps
Customize your Audi with 2 Fuel Pumps products
like Fuel Pumps and
Direct Injection High Pressure Fuel Pumps, all
priced under $459.99.
Delphi – Direct Injection High Pressure Fuel Pump: Without Gasket/Seal or Wiring Harness (Part No.HM10049)
from
$405.99
Demand for Gasoline Direct injection (GDi) technology globally is expected to grow in excess of 10 percent annually through 2026. Delphi uses the latest generation of OE technology for our GDi, and our GDi service program includes the OE parts, tools and know-how to service this fast-growing, high-performance technology. Delphi is a leading Tier 1 supplier of GDi systems to global OEMs. We offer multiple GDi specific training classes, a technician support hotline staffed by ASE certified technicians, and a full line of GDi high-pressure fuel pumps. Learn more about our training programs and tech hotline at 1-877-463-3574.
Product Features:
See More
Product Features:
- Capable of delivering fuel at high pressures that can range from 2,000-2,800 PSI
- Mechanically driven high fuel flow pump enables rail pressure build up quickly for fast start times
- Fuel delivered directly into the engine combustion chamber for increased horsepower and fuel economy
- Meets OE specifications
Delphi – Fuel Pump Module Assembly (Part No.FG2093)
from
$459.99
Delphi is a Tier 1 supplier to the majority of global vehicle manufacturers and has been a manufacturer of dependable fuel pumps and fuel delivery parts for over 80 years. With over 30 OE-proprietary innovations and 150 patents in fuel technologies, Delphi is regarded as a market leader in North American fuel management with sales coverage at over 95%. Learn more about our expert-led training programs and tech hotline at 1-877-463-3574. Visit our Resource Center for helpful tips and tricks on fuel pumps, technologies, and more: https://www.delphiautoparts.com/usa/en-US/resource-center.
Product Features:
See More
Product Features:
- Delphi is a global OE manufacturer and all fuel pumps are built to Delphi’s OE standards
- Empty float height and float retention matches OE specifications and guarantees correct gas gauge reading
- Lower amperage draws less load on vehicle’s electrical system
- Part is validated, tested and matched to the right vehicle application
- Always be sure to check and clean fuel tank to avoid unnecessary returns
- Lower failure rates due to its innovative design and durability
Top Picks for 2018 Audi A4 allroad Gas Caps
Upgrade Audi A4 allroads with top-quality Gas Caps parts, including 1 OEM and aftermarket selections for your 2018 model.
Motorad – Tethered Fuel Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.MGC937T)
from
$127.99
Manufactured with OEM quality materials and safety standards by an OE Supplier. Manufactured to pass all state and federal emissions requirements. Specifically designed pressure and vacuum relief valves to prevent evaporation of fuel. A leaking fuel cap can allow up to 30 gallons of gasoline to evaporate over the period of a year.
Product Features:
See More
Product Features:
- Passes all state and federal emissions tests
- Manufactured from durable, long-life materials
- Reduces air pollution with proper sealing and venting
- Independently tested for emission control
In-Demand Air Flow Sensors for 2018 Audi A4 allroads
Select from 2 premium Air Flow Sensors parts for your 2018 Audi A4 allroad, with prices ranging from $218.99 to $246.99.
DENSO – Wideband Oxygen Sensor: Upstream, 5 Wire, 28.82" Long, Heated, Exact Fit (Part No.234-5019)
from
$246.99
DENSO Air/Fuel Ratio Sensors are manufactured and tested to the strictest OE standards for unparalleled peformance.; Each component is precision-built for exact replacement¿ and a first time fit.; DENSO gives you the right part and the right fit¿ the first time.
Product Features:
See More
Product Features:
- Specifically designed to meet the increasing demands of today’s engines
- 100 percent checked for high temperature signal output, air tightness, continuity, and heat resistance for optimal efficiency and performance
- Coated with aluminum oxide to prevent silicone and lead from contacting the ceramic element and damaging the platinum electrode
- Double protection cover helps maintain proper unit temperature for quicker response times, which is critical to your vehicle’s fuel efficiency
- Manufactured with a rugged stainless steel housing and porous PTFE filter to resist corrosion and contamination
Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECA2483)
from
$218.99
CARQUEST MAP sensors are manufactured with critical OEM components to ensure that your engine runs efficiently to reach the best gas mileage on your vehicle.
Product Features:
See More
Product Features:
- CARQUEST MAP sensors connectors are exact OE fit to ensure the proper vacuum is maintained to prevent power loss and to minimize internal contamination.
- CARQUEST MAP sensors utilize high temperature resistant seals. Damaged seals can directly impact the vehicles fuel-to-air ratio, making it less fuel efficient.
- CARQUEST MAP sensors are 100% individually tested for all product functionalities including proper vacuum seal and electrical output.
Most Sold 2018 Audi A4 allroad Fuel Injectors
Explore our best-selling Audi parts for the 2018 A4 allroad among 4 OEM and aftermarket options starting from $16.05.
Carquest – Fuel Injector Seal Kit (Part No.274831)
from
$16.05
High-quality products that meet OE appearance and performance to provide professional technicians and DIYers with a cost-effective solution.
Product Features:
See More
Product Features:
- Designed to OE standards for ease of installation
- High-quality materials withstand extreme conditions
- Undergoes extensive testing to ensure reliability
- As a global manufacturer of automotive aftermarket products, we maintain complete quality control throughout the manufacturing process
Carquest Premium – Premium GDI Seal Tool Kit (Part No.ATK-001)
from
$129.99
This premium tool kit is designed to ensure the correct installation of the combustion seal on Gasoline Direct Injectors (GDI), which require replacement any time the injector is reinstalled. This special tool allows for the expansion of the combustion seal to allow installation onto the injector’s tip and resizing tools to provide precise dimensioning to ensure proper combustion sealing. Constructed of high-quality stainless steel the tool will provide years of trouble-free service and can be used on over 100 unique styles of GDI injectors.
Product Features:
See More
Product Features:
- Includes two expansion cones
- Includes two resizing tools
- Includes one seal installation collet
- Includes hard case
- Includes instruction manual
Carquest Premium – Remanufactured Fuel Injector (Part No.A512-1155)
from
$69.99
CARQUEST’s line of remanufactured OEM fuel injectors are remanufactured using a proven 15 step process at a state-of-the-art remanufacturing facility in the U.S.A. Each injector is 100% tested under multiple operating conditions to ensure each injector meets or exceeds OE specifications for flow rate, spray pattern, coil resistance, form, fit and function. Each injector includes new external seals and o-rings.
Product Features:
See More
Product Features:
- Each unit is 100% tested to OE specifications.
- Includes new o-rings and seals made of premium OE quality materials.
- Includes application specific technical bulletin, where applicable.
Carquest Premium – Fuel Injector Seal Kit (Part No.AS070)
from
$17.99
CARQUEST fuel injector seal kits include the necessary o-rings and seals to properly reseal the injector, which is a recommended practice any time the injector is removed. Each kit services one injector and includes hard to find or previously dealer-only components.
Product Features:
See More
Product Features:
- Premium OE quality materials.
- Services one injector.
Top-Rated Fuel and Emissions Systems Brands For Your 2018 Audi A4 allroad
Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2018 Audi A4 allroads. Below you’ll find some of our best rated Fuel and Emissions Systems from Carquest, and more. Fuel and Emissions Systems from these brands that fit a 2018 A4 allroad start at just $16.05 and are rated as high as 4.4 stars. OEM and aftermarket Fuel and Emissions Systems don’t get more top quality, durable, and affordable than from the brands below.
Popular Carquest 2018 Audi A4 allroad Fuel and Emissions Systems
When it comes to maintaining or upgrading your 2018 Audi A4 allroad, using quality Fuel and Emissions Systems is essential to ensure durability and a perfect fit. Carquest ticks all of those boxes. We offer a wide selection of Carquest Fuel and Emissions Systems, specifically designed for the 2018 Audi A4 allroad. With over 1 Carquest brand Fuel and Emissions Systems in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $16.05. Plus, with over 1 customer reviews and an average rating of 4.4 stars, you can trust that our Carquest Fuel and Emissions Systems will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
from
$16.05
(1)
Fuel Injector Seal Kit
“It was a little pricey and no hardware came with it, so save the nuts and bolts from the old one, otherwise it fit perfectly and works great.”
FAQs for 2018 Audi A4 allroad Fuel and Emissions Systems
Which Fuel and Emissions Systems are best-sellers for 2018 Audi A4 allroads?
Out of 11 Fuel and Emissions Systems that fit 2018 Audi A4 allroads, the following parts are the top sellers:
- Fuel Tank Cleaning Kit (11692237) – $12.49
- Direct Injection High Pressure Fuel Pump: Without Gasket/Seal or Wiring Harness (11951799) – $405.99
- Fuel Pump Module Assembly (11892396) – $459.99
What’s the price range for 2018 Audi A4 allroad Fuel and Emissions Systems?
Fuel and Emissions System prices for the 2018 Audi A4 allroad start at $12.49 and go up to $459.99 for the most premium parts.
What’s the average price of a Fuel and Emissions System for a 2018 Audi A4 allroad?
The average price for Fuel and Emissions Systems for the 2018 Audi A4 allroad is $170.50. Keep in mind the variety of part types within our Fuel and Emissions System category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Fuel and Emissions Systems for other Audi A4 allroad model years?
What are the cheapest Fuel and Emissions Systems for my 2018 Audi A4 allroad?
The cheapest 2018 Audi A4 allroad Fuel and Emissions Systems we carry in stock are:
- Fuel Tank Cleaning Kit (11692237) – $12.49
- Fuel Injector Seal Kit (10691243) – $16.05
- Fuel Injector Seal Kit (12181224) – $17.99
- Remanufactured Fuel Injector (12483380) – $69.99
- Tethered Fuel Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (50042421) – $127.99
What are the top-rated Fuel and Emissions Systems that fit the 2018 Audi A4 allroad?
Out of 3 reviews by customers, our 2018 Audi A4 allroad Fuel and Emissions Systems have an average customer rating of . These are some of the highest-rated Fuel and Emissions System types for the 2018 Audi A4 allroad and their top-rated products:
- Fuel Injectors
- Fuel Injector Seal Kit (10691243) – $16.05
What types of Fuel and Emissions Systems do you sell for my 2018 Audi A4 allroad?
As of 11/2/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2018 Audi A4 allroad:
Can I get help with 2018 Audi A4 allroad Fuel and Emissions System orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Audi Fuel and Emissions Systems and more.
What is your return policy for Audi A4 allroad Fuel and Emissions Systems?
Advance Auto Parts keeps returns simple. For new Audi A4 allroad Fuel and Emissions Systems and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
