2011 Audi A4 Fuel and Emissions Systems

Name: Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with Seals with 2 O-Rings
Brand: ACDelco
SKU: 217-3414
Price: 10.29 USD

Below you will find various in-demand Audi Fuel and Emissions Systems, components and accessories for your 2011 A4. Advance Auto Parts has popular A4 parts like Gas Caps, Air Flow Sensors, Fuel Pumps and more. You’ll also find aftermarket and OEM Fuel and Emissions Systems for other A4 model years including 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020 and more. Select a category of 2011 Audi A4 Fuel and Emissions Systems below and start saving instantly.

Popular 2011 Audi A4 Fuel and Emissions Systems Categories

Air- Fuel Ratio Sensors

Fuel Tank Cleaning Kits

Air Flow Meters and Mass Air

Gas Caps

Fuel Pumps

Oxygen Sensors

Manifold Air Pressure Sensors

Direct Injection High Pressure Fuel Pumps

Fuel Injectors

Vapor Canisters

Air Charge Temperature Sensors

Ambient Air Temperature Sensors

Fuel Injector O-Ring Kits

Fuel Injector Seal Kits

Fuel Tank Straps

Fuel Injector Gaskets

Fuel Injection Relays

Diverter Valves

Fuel Feed Lines

Fuel Cap Tester Adapters

Fuel Injector Seal Tool Set

Essential Fuel and Emissions Systems for 2011 Audi A4s

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$10.29

The ACDelco Professional Fuel Injector Seal Kit contains high quality aftermarket replacement components for one or more of the following vehicle systems: ignition, and/or engine fuel management. This premium aftermarket kit contains components that are manufactured to meet or exceed your expectations for fit, form, and function.

Product Features:

Professional, premium aftermarket replacement
Provides the performance and dependability you expect from ACDelco
Manufactured to meet expectations for fit, form, and function

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$131.99

Bosch is the world’s leading supplier and original equipment manufacturer of Oxygen Sensors. Bosch invented the automotive oxygen sensor and leads the way in sensor technology and innovation. From overall sensor design to the critical ceramic element, Bosch is known worldwide for quality and performance.

Product Features:

Advanced Wideband sensing element for exact air/fuel measurement
Robust sensor design increases sensor longevity
Seared protection tube due to 100% functional quality test
True Direct-fit
Pre-coated threads with anti-seize compound right out of the box

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$839.99

Carquest premium engine management products provide the right products for a wide range of domestic and import applications. Delivering the highest performance and durability under demanding conditions.

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$206.99

Innovative engineering, manufacturing technology and quality control ensure that Spectra Premium fuel tank straps meet or exceed the performance of the original equipment they replace.

Product Features:

Unit is designed to OE fit, form and function requirements accomplished by leveraging our expertise
Direct fit ensures safe, secure fuel tank installation
Product individually packaged and labeled to help reduce product damage prior to installation
Industry leading coverage on straps for plastic tanks
Manufactured with double-layered steel on the mounting brackets for a more robust solution

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$142.99

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:

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.

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$15.99

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:

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.

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$208.99

Hitachi’s Fuel Injectors (FIJs) are designed to optimize fuel economy and performance by providing extraordinary accuracy and application specific spray patterns with quick response times. Hitachi’s high-speed electromagnet and pintle precisely control the flow of fuel. High quality materials ensure that even under the most extreme conditions, Hitachi’s FIJs will not deform or malfunction. Our FIJs are 100% flow tested for ideal performance and are calibrated for each application ensuring your vehicle meets the strict emission standards set by the OE manufacturer. Designed to meet the exact needs of each specific vehicle, Hitachi’s Fuel Injectors are the premium choice. Hitachi is a Tier One OE supplier to the largest automobile manufacturers globally, delivering industry leading quality, and exceeding customer expectations with our products and service. Hitachi is bringing that same knowledge and expertise to the premium products we deliver in the Aftermarket because Quality Matters.

Product Features:

Hitachi is a Tier 1 OE supplier for fuel injectors
100% NEW, never remanufactured
Meets the OE performance and durability standards for this application
100% flow tested for ideal performance
High-speed electromagnet and pintle for precise fuel dispersion
Application specific spray patterns for optimized fuel efficiency and performance
O-Ring included when applicable

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$3.49

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:

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
Validated for fit, form, and function

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$476.99

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:

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

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$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:

Includes two expansion cones
Includes two resizing tools
Includes one seal installation collet
Includes hard case
Includes instruction manual

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$34.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:

BAR Certified adapters
Adapter check’s a fuel cap’s ability to hold pressure.
Adapters meet EPA standards for recommended fleet coverage.
Check adapter application chart for specific makes and models

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$133.99

CARDONE Remanufactured Mass Air Flow Sensors (MAFS) precisely track O.E. output curves and maintain specific tolerances to ensure accurate scan tool readings for proper operation. 100 percent re-soldering of critical components ensures superior electrical connections, eliminates intermittent failures and lengthens product life. With CARDONE Mass Air Flow Sensors (MAFS), you can expect smooth vehicle performance.

Product Features:

100 percent re-solder of critical components ensures superior electrical connections, no intermittent failures and longer product life.
On-car vehicle validation routines ensure that modules meet all form, fit, durability and performance requirements.
All modules are 100 percent tested with automated computer test equipment to ensure full functionality and reliability.
Our sensors precisely track O.E. output curves and maintain spec tolerances to ensure accurate feedback to the vehicle’s engine control management system.
Components are rated to handle demanding temperature variations for optimum reliability in every environment.
As a remanufactured Original Equipment part, this unit guarantees a perfect vehicle fit.
Our remanufacturing process is earth-friendly, as it reduces the energy and raw material needed to make a new part by 80 percent.

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$12.99

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:

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

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$188.99

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.

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$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:

Helps avoid premature fuel pump failure
Lint free towel included
Low suds formulation
Removes harmful contaminants from the fuel tank

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$278.99

The Secondary Air Injection system is an emission control device designed to pump fresh air into the engine exhaust system to reduce harmful emissions and convert the emission into harmless water vapor via a chemical reaction. These systems were used heavily in the pre-catalytic converter emission control period but found some application in vehicles with catalytic converter systems.

Product Features:

Application matched component to ensure the system can be returned to like new condition.
Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.

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$194.99

Application matched component to ensure the system can be returned to like new condition.
Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.

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$73.99

The temperature of various systems must be reported to the engine control module (ECM) as well as other operating system controllers in the vehicle. Coolant temperature, cabin temperature, exhaust temperature and ambient temperature are just a few systems reported by a temperature sensor. The temperature sensor is fed 5 volts by the systems computer, within the sensor housing will be a thermistor, or dropping resistor whose resistance value will change as the temperature surrounding it changes. Changing resistance in the circuit will change the volt signal at the processor indicating the current operating value.

Product Features:

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
Application matched components ensures system operation in like new condition.

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$67.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
Application matched components ensures system operation in like new condition.

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$119.99

CARQUEST premium fuel lines meet or exceed critical OE performance specifications for sealing and burst pressure. Line requires replacement any time it is removed during servicing of fuel system.

Product Features:

Premium OE quality materials
Precision machined fittings with corrosion resistant plating
Precision formed exact-fit geometry ensures accurate connection points

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$369.99

Hitachi’s High Pressure Fuel Pumps (HPPs) are designed to enhance fuel volume delivery for exceptional operation and faster vehicle response. Our HPPs are a good alternative to the standard fuel pump for direct injection, supercharged, and turbocharged applications commonly found in todays vehicles. Pump housing is made of high strength aluminum to ensure durability while keeping weight low. Precision machined surfaces prevent fuel leakage/pressure drop while chemical resistant seals prevent premature wear from ethanol mixed fuels. Designed to meet the exact needs of each specific vehicle, Hitachi’s High Pressure Fuel Pumps are the premium choice. Hitachi is a Tier One OE supplier to the largest automobile manufacturers globally, delivering industry leading quality, and exceeding customer expectations with our products and service. Hitachi is bringing that same knowledge and expertise to the premium products we deliver in the Aftermarket because Quality Matters.

Product Features:

These quality High Pressure Pumps provide exceptional operation with enhanced fuel volume delivery and faster vehicle response. Promotes a rise of fuel pressure from startup; reduces current consumption.
Hitachi is a Tier 1 OE supplier for high pressure fuel pumps
100% NEW, never remanufactured
Meets the OE performance and durability standards for this application
High strength aluminum housing for light weight and durability
Chemical resistant seals prevent premature wear from ethanol mixed fuels
Precision machined surfaces prevent fuel leakage and subsequent pressure drop
O-Ring/Gaskets included when applicable

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$480.99

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:

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

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$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:

Premium OE quality materials.
Services one injector.

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$8.49

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

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$3.99

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:

Premium OE quality materials
Services one injector

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$36.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
Application matched components ensures system operation in like new condition.

from

$67.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
Application matched components ensures system operation in like new condition.

from

$13.99

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:

Tested to ensure maximum performance
Manufactured to strict engineering standards/specifications in materials and tolerances
Long life and durability
Made by the OE manufacturer

Upgrade your 2011 Audi A4 with Top-Quality Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2011 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, Fuel and Emissions Systems are key to keeping your A4 functioning at its best. At Advance Auto Parts, we offer a wide selection of 28 Fuel and Emissions Systems for the 2011 Audi A4, designed to meet your needs without breaking the bank. From Gas Cap replacements to Air Flow Sensors 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 2011 Audi A4 at great prices. Our Fuel and Emissions Systems inventory for this model ranges from just $9.99 to $839.99, with an average price of $160.87. Our 28 Fuel and Emissions Systems in stock come from 9 trusted brands, so you’re sure to find the right part for your 2011 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 2011 Audi A4, we stock popular OEM and aftermarket Fuel and Emissions Systems from top names like Bosch, Carquest, Carquest Premium, and more. Bosch Fuel and Emissions Systems start at just $149.99 and boast an impressive 4.7 stars average rating from customers. Carquest and Carquest Premium also bring quality to the table, with Fuel and Emissions Systems available starting at $16.05, and at an average 4.4 stars rating. With 185 customer reviews and counting, our 2011 Audi A4 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 2011 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 2011 Audi A4!

Best-Selling Gas Caps for 2011 Audi A4s

Enhance the driving experience in your Audi with 1 quality Gas Cap components, starting at $40.99.

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from

$40.99

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

Most Popular 2011 Audi A4 Air Flow Sensors

Customize your Audi with 5 Air Flow Sensors products like Air- Fuel Ratio Sensors, Air Charge Temperature Sensors, and Manifold Air Pressure Sensors, all priced under $246.99.

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from

$13.99

Tested to ensure maximum performance
Manufactured to strict engineering standards/specifications in materials and tolerances
Long life and durability
Made by the OE manufacturer

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$36.99

Bosch OE quality pressure sensors for accurate measurements with high durability, fast response time and wide measuring range

Product Features:

Bosch OE quality pressure sensors for accurate measurements
Bosch OE quality pressure sensors for long term stability
Bosch OE quality pressure sensors with a short response time
Bosch OE quality pressure sensors with improved media resistance

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$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:

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

from

$73.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
Application matched components ensures system operation in like new condition.

from

$36.99

Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
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.
Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
Lead frame terminal size and location determined using image dimension measuring system or 3D laser scanner.
Application matched components ensures system operation in like new condition.

Top Picks for 2011 Audi A4 Fuel Pumps

Upgrade Audi A4s with top-quality Fuel Pumps parts, including 4 OEM and aftermarket selections for your 2011 model.

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from

$369.99

These quality High Pressure Pumps provide exceptional operation with enhanced fuel volume delivery and faster vehicle response. Promotes a rise of fuel pressure from startup; reduces current consumption.
Hitachi is a Tier 1 OE supplier for high pressure fuel pumps
100% NEW, never remanufactured
Meets the OE performance and durability standards for this application
High strength aluminum housing for light weight and durability
Chemical resistant seals prevent premature wear from ethanol mixed fuels
Precision machined surfaces prevent fuel leakage and subsequent pressure drop
O-Ring/Gaskets included when applicable

from

$363.99

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

from

$598.99

Carquest Premium fuel pump modules and assemblies are built to meet or exceed Original Equipment (OE) specifications for fit, form and function. We have invested in industry-leading quality improvements like upgraded turbine impellers and 100% carbon commutators to deliver greater reliability. Carquest Premium fuel pump modules are supplied with the pump strainer and gaskets or seals when required for the application. Carquest Premium fuel pump modules are engineered with superior quality components to provide the longest life and reliable performance.

Product Features:

Meets or exceeds OE specifications for fit, form and function
100% carbon commutators provide resistance to aggressive fuels and double the life expectancy of the pump
OE upgraded turbine impellers greatly reduce fuel pulsation
All fuel pumps are 100% performance tested
Includes installation gaskets or seals where applicable

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$43.99

Fuel Cap Tester Adaper for use with Stant fuel cap testers. Color coded for easy identification. Made of durable plastic.

Product Features:

BAR Certified adapters
Adapter check’s a fuel cap’s ability to hold pressure.
Adapters meet EPA standards for recommended fleet coverage.
Check adapter application chart for specific makes and models

In-Demand Fuel Injectors for 2011 Audi A4s

Select from 8 premium Fuel Injectors parts for your 2011 Audi A4, with prices ranging from $9.99 to $178.99.

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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:

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

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$178.99

Hitachis Air Flow Sensors (MAFs) measure the amount and characteristics of air entering the engine. Hitachi uses precision elements and high-quality components for enhanced durability and accurate air flow measurements. Hitachi MAFs are 100% air flow tested for ideal performance and are calibrated for each application ensuring your vehicle meets the strict emission standards set by the manufacturer. Details such as a contaminant bypass port (when applicable) and protected circuitry providing a durable and reliable product approved by OE manufacturers makes Hitachis air flow sensors the premium choice.

Product Features:

Hitachi is a Tier 1 OE supplier for air flow sensors
100% NEW, never remanufactured
Hitachi’s advanced precision elements and high quality components provide enhanced durability. We feature exact fitment and calibration for each vehicle, which assists engine efficiency and fuel mileage. Our sensors are 100% air flow tested to meet exac
Precision manufactured and assembled sensing elements for accurate air flow measurements

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$119.99

CARQUEST MAF sensors are 100% new and are produced by a certified OEM supplier that designs and manufactures new mass air flow sensors

Product Features:

CARQUEST MAF use all new high-quality components at the highest quality standards.
Manufactured with new and advanced technology to perform, fit and function at OE specifications.
All new product that is tested with OEM equipment to OEM standards
Outperforms competition when tested in extreme environmental conditions

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$75.99

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:

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.

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$154.99

Every single Delphi mass air flow (MAF) sensor that we manufacture – whether with or without the housing – is built with calibrated all-new components and is never remanufactured. Our mass air flow sensors are designed and tested to meet or exceed OE requirements, and engineered for a perfect fit in more than 180 million vehicles on the road today in North America – including makes from Ford, Toyota, Nissan, Volkswagen, Hyundai, BMW, Honda, GM, Mazda, Subaru, Acura and more.

Product Features:

Delphi mass air flow sensors are the global benchmark for accuracy and signal noise
Delphi mass air flow sensors feature high quality sensing elements for outstanding performance over a wide range of ambient temperatures
Delphi is a manufacturer of OE mass air flow sensors since their first use over 30 years ago
All parts are calibrated and tested to match the OE part
Probe solution offered wherever possible to reduce repair time by eliminating the need to replace the flow tube.
Delphi OE technology validated to match the vehicle applications

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$129.99

Includes two expansion cones
Includes two resizing tools
Includes one seal installation collet
Includes hard case
Includes instruction manual

from

$17.99

Premium OE quality materials.
Services one injector.

from

$9.99

Meets or exceeds all original equipment specifications
Application specific design to ensure a perfect fit
Engineered for the sealing repair environment
Unsurpassed quality you can trust
Validated for fit, form, and function

Most Sold 2011 Audi A4 Oxygen Sensors

Explore our best-selling Audi parts for the 2011 A4 among 4 OEM and aftermarket options starting from $92.99.

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from

$149.99

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Direct Fit includes OE Connector for easy installation
Performance meets or exceeds OE specifications
True Direct-fit OE connectors and harness

from

$204.99

Advanced Wideband sensing element for exact air/fuel measurement
Robust sensor design increases sensor longevity
Seared protection tube due to 100% functional quality test
True Direct-fit
Pre-coated threads with anti-seize compound right out of the box

from

$92.99

Premium Bosch oxygen sensors are designed to improve fuel economy while reducing harmful emissions
Includes Smart Link Connector, no soldering required
No special tools required for installation
Seared protection tube due to 100% functional quality test
Performance meets or exceeds OE specifications

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$167.99

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.

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

Top-Rated Fuel and Emissions Systems Brands For Your 2011 Audi A4

Shop for the best-rated brands offering Fuel and Emissions Systems and other products for your 2011 Audi A4s. Below you’ll find some of our best rated Fuel and Emissions Systems from Bosch, Carquest, and Carquest Premium, and more. Fuel and Emissions Systems from these brands that fit a 2011 A4 start at just $16.05 and are rated as high as 4.7 stars. OEM and aftermarket Fuel and Emissions Systems don’t get more top quality, durable, and affordable than from the brands below.

Popular Bosch 2011 Audi A4 Fuel and Emissions Systems

When it comes to maintaining or upgrading your 2011 Audi A4, using quality Fuel and Emissions Systems is essential to ensure durability and a perfect fit. Bosch ticks all of those boxes. We offer a wide selection of Bosch Fuel and Emissions Systems, specifically designed for the 2011 Audi A4. With over 2 Bosch 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 $149.99, with an average price of just $177.49. Plus, with over 4 customer reviews and an average rating of 4.7 stars, you can trust that our Bosch 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 $149.99

(1)

Oxygen Sensor: 4 Wire, 28.74" Long, Heated, Exact Fit

“Bought this to replae my 2012 Audi A4 Quattro downstream O2 sensor. The performance of the car definitely picked up. My upstream sensor went out yeste”

from $204.99

(3)

Wideband Oxygen Sensor: 5 Wire, 28.74" Long, Heated, Exact Fit

“Looks and sounds great! Bearing was going out in the original, so I replaced it with this one because it has a lifetime warranty. It is working perfec”

Popular Carquest 2011 Audi A4 Fuel and Emissions Systems

Carquest auto parts is one of the highest quality Fuel and Emissions System brands in the market. Any 2011 Audi A4 owner should feel confident when installing genuine Carquest parts in their vehicle. To ensure the best fit and performance for your 2011 A4, Advance Auto Parts carries a full inventory of 1 Carquest Fuel and Emissions Systems. Plus you will be keeping your Audi in peak condition while saving money because prices on these Carquest Fuel and Emissions Systems range up to $16.05, plus, with more than 1 customer reviews and an impressive 4.4 stars average rating, you can be confident the Fram Fuel and Emissions Systems below will deliver on both quality and value.

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 2011 Audi A4 Fuel and Emissions Systems

Which Fuel and Emissions Systems are best-sellers for 2011 Audi A4s?

Out of 28 Fuel and Emissions Systems that fit 2011 Audi A4s, the following parts are the top sellers:

Fuel Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (16090008) – $40.99
Fuel Tank Cleaning Kit (11692237) – $12.49
Fuel Injector Seal Kit (10691243) – $16.05

What’s the price range for 2011 Audi A4 Fuel and Emissions Systems?

Fuel and Emissions System prices for the 2011 Audi A4 start at $9.99 and go up to $839.99 for the most premium parts.

What’s the average price of a Fuel and Emissions System for a 2011 Audi A4?

The average price for Fuel and Emissions Systems for the 2011 Audi A4 is $160.87. 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 model years?

Yes, we currently carry Fuel and Emissions Systems for 23 model years of Audi A4s between 1996 and 2020. Fuel and Emissions Systems are bought most frequently for the following model years: 2020, 2019, 2018, 2017, 2016, 2015, 2014, 2013, and 2012.

What are the cheapest Fuel and Emissions Systems for my 2011 Audi A4?

The cheapest 2011 Audi A4 Fuel and Emissions Systems we carry in stock are:

Fuel Injection Throttle Body Mounting Gasket (50192373) – $9.99
Fuel Tank Cleaning Kit (11692237) – $12.49
Thermo Switch (11325174) – $13.99
Fuel Injector Seal Kit (10691243) – $16.05
Fuel Injector Seal Kit (12181224) – $17.99

What types of Fuel and Emissions Systems do you sell for my 2011 Audi A4?

As of 11/2/25, these are some of the most in-demand types of Fuel and Emissions Systems for a 2011 Audi A4:

Can I get help with 2011 Audi A4 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 Fuel and Emissions Systems?

Advance Auto Parts keeps returns simple. For new Audi A4 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.

2011 Audi A4 Fuel and Emissions Systems

ACDelco – Fuel Injector Fuel Feed and Return Pipe O-Ring Kit with Seals with 2 O-Rings (Part No.217-3414)

Bosch – Wideband Oxygen Sensor: 5 Wire, 28.74" Long, Heated, Exact Fit (Part No.17353)

Carquest Premium – Vapor Canister (Part No.CPN2329)

Spectra Premium – Fuel Tank Strap (Part No.ST404)

Carquest Premium – Manifold Absolute Pressure Sensor (MAP) (Part No.ECA1627)

Carquest Premium – Multi-Purpose Relay (Part No.RAA2248)

Hitachi – Fuel Injector – New Actual OE Part (Part No.FIJ0033)

Felpro – Fuel Injection Throttle Body Mounting Gasket (Part No.61092)

Delphi – Fuel Pump Module Assembly: With Float Arm (Part No.FG2082)

Carquest Premium – Premium GDI Seal Tool Kit (Part No.ATK-001)

Carquest Premium – Fuel Cap Tester Adapter: (Part No.12427)

Cardone – Remanufactured Mass Air Flow Sensor (Part No.74-50038)

Carquest Premium – Non-Locking Fuel Tank Cap (Part No.10835)

DENSO – Air-Fuel Ratio Sensor 4 Wire, Direct Fit, Heated, Wire Length: 14.96" (Part No.234-5736)

Delphi – Fuel Tank Cleaning Kit (Part No.FC01)

Carquest Premium – Diverter Valve (Part No.ECC2434)

Carquest Premium – Diverter Valve (Part No.ECC2425)

Carquest Premium – Air Charge Temperature Sensor (Part No.WTA1398)

Carquest Premium – Air Charge Temperature Sensor (Part No.WTA1883)

Carquest Premium – High Pressure Fuel Feed Line (Part No.A500-19)

Hitachi – High Pressure Fuel Pump – New Actual OE Part (Part No.HPP0010)

Delphi – Direct Injection High Pressure Fuel Pump: Without Gasket/Seal or Wiring Harness (Part No.HM10012)

Carquest Premium – Fuel Injector Seal Kit (Part No.AS070)

Felpro – Fuel Injector O-Ring Kit (Part No.ES 70599)

Carquest Premium – Fuel Injector Seal Kit (Part No.AS017)

Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1106)

Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA2018)

Rein – Thermo Switch (Part No.ELT0059)

Carquest Premium – Fuel Cap: Twist-Lock, Direct Fit, Provides Tight Seal, 1 Pack (Part No.10844)

Rein – Thermo Switch (Part No.ELT0059)

Bosch – Pressure Sensor (Part No.0261230208)

DENSO – Wideband Oxygen Sensor: Upstream, 5 Wire, 28.82" Long, Heated, Exact Fit (Part No.234-5019)

Carquest Premium – Air Charge Temperature Sensor (Part No.WTA1398)

Carquest Premium – Ambient Air Temperature Sensor (Part No.WTA1106)

Hitachi – High Pressure Fuel Pump – New Actual OE Part (Part No.HPP0010)

Delphi – Direct Injection High Pressure Fuel Pump: Without Gasket/Seal or Wiring Harness (Part No.HM10023)

Carquest Premium – Fuel Pump Module Assembly: Fuel Pump, Sending Unit and Strainer (Part No.M2521013)

Carquest Premium – Fuel Cap Tester Adapter: (Part No.12426)

Carquest – Fuel Injector Seal Kit (Part No.274831)

Hitachi – Air Flow Sensor – New Actual OE Part (Part No.MAF0116)

Carquest Premium – Mass Air Flow Sensor (MAF) – 100% NEW (Part No.MQ7400)

Carquest Premium – Remanufactured GDI Fuel Injector (Part No.A512-1055)

Delphi – Mass Air Flow Sensor (Part No.AF10480)

Carquest Premium – Premium GDI Seal Tool Kit (Part No.ATK-001)

Carquest Premium – Fuel Injector Seal Kit (Part No.AS070)

Felpro – Fuel Injection Throttle Body Mounting Gasket (Part No.61847)

Bosch – Oxygen Sensor: 4 Wire, 28.74" Long, Heated, Exact Fit (Part No.16002)

Bosch – Wideband Oxygen Sensor: 5 Wire, 28.74" Long, Heated, Exact Fit (Part No.17178)

Bosch – Oxygen Sensor: 4 Wire, 24.92" Long, Heated, Universal (Part No.15733)

DENSO – Oxygen Sensor: Downstream, 4 Wire, 28.74" Long, Heated, Exact Fit (Part No.234-4754)