Audi A3 Emission Control Parts

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    • (18 reviews)
      # sp99082
      OE Connector Oxygen Sensor by Denso®. Denso's light duty oxygen sensor started to appear on vehicles with the development of fuel injection systems. The basic job of the sensor is to monitor the air fuel mixture under idle, moderate...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $10.75 - $362.09
    • (2 reviews)
      # sp27211
      Professional™ Oxygen Sensor by ACDelco®. If your O2 Sensor is not functioning properly, you are robbing yourself of performance and costing yourself money at the gas pump. Let ACDelco’s Professional Oxygen Sensors help. You can find...
      ACDelco Professional Oxygen Sensors earn the name ACDelco by being put through a variety of tests, often under extreme and unusual conditionsCustomers can receive better gas mileage with a properly working oxygen sensor
      $16.81 - $221.70
    • (4 reviews)
      # sp94914
      Air Fuel Ratio Sensor by Denso®. Make sure your engine runs efficiently and produces fewer emissions by replacing your malfunctioning fuel-ratio sensors with these top-notch products designed by Denso. Engineered with the use of the...
      Designed to help reduce fuel consumption and harmful emissionsMade with the use of state-of-the-art sensor technologies
      $36.18 - $370.04
    • (13 reviews)
      # sp5156
      Oxygen Sensor by NTK®. This product is designed to improve engine efficiency and fuel mileage, while reducing emissions and extending catalyst life. The oxygen sensor is made of premium quality material and extensively tested during...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $11.68 - $173.44
    • (2 reviews)
      # sp107310
      Intermotor™ Vapor Canister by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to...
      OE quality parts from top original equipment and aftermarket manufacturersEach fuel vapor canister is designed and tested to OE specifications for a direct-fit replacement controlling the loss of evaporative emissions from fuel systems to the environment
      $24.28 - $724.46
    • (3 reviews)
      # sp99297
      Oxygen Sensor by Spectra Premium®. To ensure your vehicle has optimal performance and fuel economy while producing minimal emissions replace a defective O2 sensor with one backed by the aftermarket’s most rigorous testing process. It...
      Increase vehicle fuel economy and engine performance while decreasing vehicle exhaust emissions100% performance tested to meet vehicle requirements
      $9.50 - $724.60
    • (0 reviews)
      # sp27986
      TechSmart™ Engine Crankcase Vent Valve by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $23.31 - $88.04
    • (0 reviews)
      # sp119178
      Universal Oxygen Sensor by Bosch®. Properly functioning oxygen sensors are important when it comes to your vehicle's fuel efficiency and reducing harmful exhaust emissions. That's why checking for, and possibly replacing, a worn-out...
      Patented SmartLink™ connector systemNo special tools required for installation
      $14.19 - $71.07
    • (3 reviews)
      # sp92988
      Wideband Oxygen Sensor by Bosch®. Invented for life, Bosch car parts are a rare combination of high quality, dependable service, and a reasonable price. This sensor utilizes a sophisticated sensing element enabling it to produce a...
      Detects the exact amount of unburned fuel in the exhaust streamOE connectors and OE-style harness for continuous wire from connector to sensor
      $50.55 - $327.53
    • (0 reviews)
      # sp121602
      Air-Fuel Ratio Sensor by NTK®. Air/Fuel Ratio Sensors Utilize a Sophisticated Sensing Element that Enables Them to Produce a Precise Output in Proportion to the Air/Fuel Ratio. AFR Sensors Provide the ECU with an Exact AFR Response,...
      Increases vehicle fuel economy and engine performance while decreasing vehicle exhaust emissionsDirect replacement
      $37.19 - $367.84
    • (0 reviews)
      # sp5756
      Oxygen Sensor by Delphi®. As one of the leading suppliers of oxygen sensor technology since 1978, Delphi planar technology is the result of their OE and aftermarket engineers partnering together to develop the most innovative oxygen...
      OE connectors and wire lengths within 3" of OE specificationsResists high temperatures, vibration damage and wire corrosion to protect signal accuracy, and long life
      $12.75 - $209.93
    • (0 reviews)
      # sp26976
      Oxygen Sensor by Walker®. With their extensive selection of accessories and hardware for the exhaust system, Walker will provide you with everything needed to do the complete exhaust job. When you choose Walker accessories, you get...
      Makes installation quick and easyOptimal OE-style fit and quality
      $25.64 - $292.28
    • (3 reviews)
      # sp137457
      Oxygen Sensor by Aceon®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials...
      Designed to provide long-lasting service lifeMade utilizing state-of-the-art equipment
      $9.81 - $56.43
    • (0 reviews)
      # sp107286
      PCV Valve Kit by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as it should and help...
      High quality plastic and/or steel constructionDirect replacement for a proper fit every time
      $5.99 - $199.59
    • (0 reviews)
      # sp110119
      Engine Crankcase Vent Valve by Gates®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle's emissions control system is in need of repair, but before you waste your time and gas running out to...
      High quality at an affordable priceExpertly made from premium materials
      $13.05 - $63.33
    • (2 reviews)
      # sp6407
      PCV Valve by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the 1950’s, brand understands...
      OE quality products from top original equipmentTop quality materials
      $1.95 - $97.57
    • (0 reviews)
      # sp107313
      PCV Valve Kit by Beck Arnley®. For one hundred years, Beck/Arnley has been providing premium OE quality parts for vehicles. Beginning with motorcycle parts in 1914 and transitioning to import vehicles in the 1950’s, brand understands...
      OE quality products from top original equipmentTop quality materials
      $34.05 - $162.89
    • (0 reviews)
      # sp107204
      PCV Valve by Original Equipment®. If you have a dirty air filter, clogged PCV valve, or defective MAF sensor you may be tempted to just run down to the local auto parts chain store for a replacement, but before you waste your time and...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $13.44 - $38.30
    • (0 reviews)
      # sp143553
      Engine Oil Separator by Vaico®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle's emissions control system is in need of repair, but before you waste your time and gas running out to the auto...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $34.77 - $230.36
    • (0 reviews)
      # sp107278
      PCV Valve by Vaico®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle's emissions control system is in need of repair, but before you waste your time and gas running out to the auto parts chain...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $8.21 - $211.75
    • (0 reviews)
      # sp107273
      Vapor Canister by Genuine®. Genuine is here to give you the ultimate in quality and reliability at a cost you can afford. Designed utilizing the latest technologies and manufactured from premium materials using state-of-the-art...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $46.64 - $807.64
    • (1 review)
      # sp13481
      Intermotor™ EGR Valve by Standard®. SMP’s vision is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for integrity to all...
      OE quality parts from top original equipment and aftermarket manufacturersHeavy-duty stepper motor and stainless-steel valve components ensure durability
      $29.05 - $820.05
    • (0 reviews)
      # sp143600
      EGR Valve by Valeo®. The top-notch Valeo part will replace a used component in your vehicle's emission control system to ensure proper performance while reducing fuel consumption and pollutant emissions. This component is made to OE...
      Designed for efficient recovery of nitrogen oxide emissionsMade from top-grade materials for superior durability
      $155.12 - $222.87
    • (0 reviews)
      # sp143438
      EGR Valve Control Solenoid by Original Equipment®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle's emissions control system is in need of repair, but before you waste your time and gas...
      High quality at an affordable priceExpertly made from premium materials
      $42.62 - $133.88
    • (0 reviews)
      # sp119414
      EGR Valve by Febi®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle's emissions control system is in need of repair, but before you waste your time and gas running out to the auto parts chain...
      OE quality parts from top original equipment and aftermarket manufacturersThe finest quality at a great price
      $139.13
    • (0 reviews)
      # sp110130
      Secondary Air Injection Pump by Vemo®. Is your CHECK ENGINE light on? Has your vehicle failed a state emissions test? Your vehicle's emissions control system is in need of repair, but before you waste your time and gas running out to...
      High quality at an affordable priceExpertly made from premium materials
      $155.66 - $552.43
    • (1 review)
      # sp10059
      Ultra™ Universal Fit Catalytic Converter by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust...
      EPA & CARB Emissions Products Available for Most Vehicles5 Year / 50,000 Miles Warranty on Structural Components
      $53.67 - $122.75
    • (6 reviews)
      # sp4304
      Universal Fit Catalytic Converter by Walker®. Walker offers complete coverage: direct-fit mufflers, converters, pipes, resonators and accessories. Walker is an OE supplier to many major nameplate vehicle manufacturers. Trust Walker, an...
      EPA & CARB Emissions Products Available for Most VehiclesEmission, Structural Warranty: 5 Years / 50,000 Miles (80,000 Kilometers)
      $59.21 - $259.61
    • (4 reviews)
      # sp128207
      ECO II Direct Fit Converter and Pipe Assembly by Eastern®. If you need to replace your failed or damaged catalytic converter, this product is the right choice. Designed specifically for your vehicle, this catalytic converter is a great...
      Direct OEM replacementConverts harmful engine emissions to less dangerous gases and water vapor
      $106.25 - $563.99
    • (7 reviews)
      # sp106571
      ECO II Universal Fit Undercar Catalytic Converter by Eastern®. Focused on manufacturing only top-grade emission control products, Eastern Catalytic will perfectly serve your purpose if you opt for a high quality catalytic converter....
      Converts harmful engine emissions to less dangerous gases and water vaporAdvanced design for maximum engine output
      $33.45 - $114.72




    The Audi A3 is a compact luxury car that has been manufactured since 1996. The first and the second generation cars were engineered and styled using the Volkswagen Group A platform, while the third generation was based on the MQB platform. The A3 uses a front-wheel drive system, but has the quattro (4WD) system offered as an option. As for the U.S. automotive market, the A3 appeared there only in 2006. Sedan, hatchback, and convertible body styles are offered. The 2015 A3 sedan offers two trims: Premium Plus and Prestige. Both have a choice of two engines, either a 1.8L TFSI I4 generating 170 hp or a 2.0L TFSI I4 that makes 220 hp.

    Restoring your Audi A3 emission control system with the first-rate emission control parts is easy with our website. It displays and supplies a great number of premium oxygen sensors, vapor canister purge valves, etc., manufactured by internationally acknowledged companies. As soon as we deal only with the most trusted aftermarket brands like Bosch, Denso, NTK, etc., any customer is sure to get quality products that provide great OE-like functionality.

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