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Get the Best Priced Audi A4 Air Fuel Ratio Sensor

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Audi A4 Replacement Air Fuel Ratio Sensor Information


The air fuel ratio sensor affects the mix of oxygen and gasoline sent to your Audi's engine. When it fails, you will usually see a "check engine" light, and your engine might receive a lean or rich air/fuel mixture.

A faulty air fuel ratio sensor can significantly affect the performance of your A4's engine. You may notice less power or worse gas mileage, and your engine might stumble during acceleration. Your vehicle's exhaust system will also experience extra stress, and you may have trouble passing any state-mandated vehicle emissions tests. Ideally, you should treat a failed air/fuel ratio sensor as soon as you can to avoid large repair bills. Parts Geek has replacement air fuel ratio sensors to keep your engine in great working condition. Our parts are designed to OEM specifications and will allow your Audi A4 to maintain a perfect fuel mixture.


Audi A4 Air Fuel Ratio Sensor They are available for the following Audi A4 years: 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 16, 15, 14, 13, 12, 11, 10, 09, 08, 07, 06, 05, 04, 03, 02. This part is also sometimes called Audi A4 Wide Range Air Fuel Sensors. We stock air fuel ratio sensor parts for most Audi models including A6 Quattro, A4 Quattro, S4, A6, A3 Quattro, Q5, A8 Quattro, A3, Q7, TT, TT Quattro, Allroad Quattro, A5 Quattro, S5, S6, S8, RS4, A5 and R8.

We stock these Air Fuel Ratio Sensor brands for the Audi A4: Denso and NGK.


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Review Fitment Notes to Ensure Proper Fit
Denso Logo Denso Air Fuel Ratio Sensor 234-5028
Click to Enlarge
(Read reviews)
Our List Price: $110.43
(3) In Stock
Product SKU: 234-5028
Product Note: OE Style -- O.E. Quality Replacement Sensor
Sensor Type Heated
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
2003 Audi A4 3.0L V6 

Denso Logo Denso Air Fuel Ratio Sensor 234-5028
Click to Enlarge
(Read reviews)
Our List Price: $110.43
(3) In Stock
Product SKU: 234-5028
Product Note: OE Style -- O.E. Quality Replacement Sensor
Sensor Type Heated
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
2004 Audi A4 3.0L V6 

NGK Logo NGK Air Fuel Ratio Sensor 24339
Click to Enlarge
(Read reviews)
Our List Price: $111.08
(2) In Stock
Product SKU: 24339
Product Note: Direct Fit 5-Wire Wideband A/F Sensor -- B1S1; OE Equivalent Design
Features:
  • NTK oxygen sensors heat up rapidly to meet requirements of the vehicle to improve fuel economy and reduce emissions. NTK's proprietary ceramic element overcoat protects against sensor failure.
  • NTK is constantly improving sensor designs to provide excellent performance and improve resistance to failure. NTK works with their OEM manufacturers through each phase of development from concept to production.
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: H
Vehicle Engine
2007 Audi A4 2.0L 4 Cyl 

NGK Logo NGK Air Fuel Ratio Sensor 24317
Click to Enlarge
(Read reviews)
Our List Price: $107.43
(15) In Stock
Product SKU: 24317
Product Note: Direct Fit 5-Wire Wideband A/F Sensor -- B1S1; OE Equivalent Design
Features:
  • NTK oxygen sensors heat up rapidly to meet requirements of the vehicle to improve fuel economy and reduce emissions. NTK's proprietary ceramic element overcoat protects against sensor failure.
  • NTK is constantly improving sensor designs to provide excellent performance and improve resistance to failure. NTK works with their OEM manufacturers through each phase of development from concept to production.
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
2001 Audi A4 1.8L 4 Cyl 

Denso Logo Denso Air Fuel Ratio Sensor 234-5019
Click to Enlarge
(Read reviews)
Our List Price: $121.43
(4) In Stock
Product SKU: 234-5019
Product Note: OE Style -- O.E. Quality Replacement Sensor
Sensor Type Heated
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
2018 Audi A4 2.0L 4 Cyl 

NGK Logo
NGK Air Fuel Ratio Sensor 27050
Click to Enlarge
(Read reviews)
Our List Price: $107.98

Product SKU: 27050
Product Note: Direct Fit 5-Wire Wideband A/F Sensor -- B1S1; OE Equivalent Design
Features:
  • NTK is constantly improving sensor designs to provide excellent performance and improve resistance to failure. NTK works with their OEM manufacturers through each phase of development from concept to production.
  • NTK oxygen sensors heat up rapidly to meet requirements of the vehicle to improve fuel economy and reduce emissions. NTK's proprietary ceramic element overcoat protects against sensor failure.
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: T
Vehicle Engine
2017 Audi A4 2.0L 4 Cyl CYMC 

Denso Logo Denso Air Fuel Ratio Sensor W0133-2097152
Click to Enlarge
(Read reviews)
Product List Price:
$235.00
Our List Price: $180.58
with FREE Shipping
(3) In Stock
Product SKU: W0133-2097152
Product Note: First Time Fit
Position of Product: Upstream
Condition: New

Shipping Options:
Free Ground Shipping or (Overnight and 2-Day Shipping)
Fitment Information: Catalog: A
Vehicle
2016 Audi A4

NGK Logo
NGK Air Fuel Ratio Sensor 24328
Click to Enlarge
(Read reviews)
Our List Price: $109.98
(4) In Stock
Product SKU: 24328
Product Note: Direct Fit 5-Wire Wideband A/F Sensor -- B1S1; OE Equivalent Design
Features:
  • NTK oxygen sensors heat up rapidly to meet requirements of the vehicle to improve fuel economy and reduce emissions. NTK's proprietary ceramic element overcoat protects against sensor failure.
  • NTK is constantly improving sensor designs to provide excellent performance and improve resistance to failure. NTK works with their OEM manufacturers through each phase of development from concept to production.
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: T
Vehicle Engine
2015 Audi A4 2.0L 4 Cyl GAS 

Denso Logo Denso Air Fuel Ratio Sensor 234-5019
Click to Enlarge
(Read reviews)
Our List Price: $121.43
(4) In Stock
Product SKU: 234-5019
Product Note: OE Style -- O.E. Quality Replacement Sensor
Sensor Type Heated
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
2014 Audi A4 2.0L 4 Cyl 

Denso Logo Denso Air Fuel Ratio Sensor 234-5019
Click to Enlarge
(Read reviews)
Our List Price: $121.43
(4) In Stock
Product SKU: 234-5019
Product Note: OE Style -- O.E. Quality Replacement Sensor
Sensor Type Heated
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
2013 Audi A4 2.0L 4 Cyl 

Denso Logo Denso Air Fuel Ratio Sensor 234-5019
Click to Enlarge
(Read reviews)
Our List Price: $121.43
(4) In Stock
Product SKU: 234-5019
Product Note: OE Style -- O.E. Quality Replacement Sensor
Sensor Type Heated
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
2012 Audi A4 2.0L 4 Cyl 

Denso Logo Denso Air Fuel Ratio Sensor 234-5019
Click to Enlarge
(Read reviews)
Our List Price: $121.43
(4) In Stock
Product SKU: 234-5019
Product Note: OE Style -- O.E. Quality Replacement Sensor
Sensor Type Heated
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
2011 Audi A4 2.0L 4 Cyl 

Denso Logo Denso Air Fuel Ratio Sensor 234-5019
Click to Enlarge
(Read reviews)
Our List Price: $121.43
(4) In Stock
Product SKU: 234-5019
Product Note: OE Style -- O.E. Quality Replacement Sensor
Sensor Type Heated
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
2010 Audi A4 2.0L 4 Cyl 

Denso Logo Denso Air Fuel Ratio Sensor 234-5102
Click to Enlarge
(Read reviews)
Our List Price: $101.43
(20) In Stock
Product SKU: 234-5102
Product Note: OE Style -- O.E. Quality Replacement Sensor
Sensor Type Heated
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
2009 Audi A4 2.0L 4 Cyl BWT 

Denso Logo Denso Air Fuel Ratio Sensor 234-5120
Click to Enlarge
(Read reviews)
Our List Price: $128.43
(2) In Stock
Product SKU: 234-5120
Product Note: OE Style -- O.E. Quality Replacement Sensor
Sensor Type Heated
Position of Product: Upstream
Condition: New

Shipping Options:
Ground
Fitment Information: Catalog: B
Vehicle Engine
2008 Audi A4 3.2L V6 


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2009 Audi A4 Air Fuel Ratio Sensor


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