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Part #: 245-1171

Walker 245-1171 Mass Air Flow Sensor

Walker Mass Air Flow Assembly
36 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Mass Air Flow Assembly
Fitment: Volkswagen and Audi, Golf R, A4, A4 Quattro, TT, Eos, A3, GTI, Jetta, and Passat
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Overview of Walker Mass Air Flow Sensor 245-1171

The Walker Mass Air Flow Assembly 245-1171 is designed for precise airflow measurement in select Audi and Volkswagen models. This sensor plays a critical role in maintaining optimal engine performance and emissions control.

  • Compatible with Audi A3, A4, A4 Quattro, Eos, and Volkswagen Golf, Golf R, GTI, Jetta, Passat, TT
  • Part number 245-1171 ensures exact fit and function
  • Measures incoming air volume for accurate fuel injection
  • Supports emission control system efficiency
  • Walker Mass Air Flow Assembly product line designed for reliable sensor replacement

About the Walker Mass Air Flow Assembly Product Line

The Walker Mass Air Flow Assembly line focuses on delivering precise airflow sensors that meet OEM specifications for emission control systems. This product line includes sensors engineered to provide accurate air measurement, which is essential for engine management systems in various Audi and Volkswagen vehicles. The 245-1171 sensor is part of this line, ensuring compatibility and performance consistency.

Detailed Product Description

The Walker 245-1171 Mass Air Flow Sensor is engineered to monitor the volume and density of air entering the engine intake. This data is critical for the engine control unit (ECU) to calculate the correct air-fuel mixture, which affects combustion efficiency and emissions. Designed specifically for Audi and Volkswagen models such as the A3, A4, A4 Quattro, Eos, Golf, Golf R, GTI, Jetta, Passat, and TT, this sensor ensures proper fitment and reliable operation. Using the correct part number 245-1171 guarantees compatibility and helps maintain factory performance standards.

Common Applications and Issues Addressed

  • Restores accurate air measurement for improved fuel economy
  • Resolves engine hesitation or stalling related to faulty airflow readings
  • Helps correct rough idling caused by sensor malfunction
  • Supports emission system compliance by providing precise airflow data
  • Eliminates check engine light triggers related to mass air flow sensor faults

Installation Notes and Tips

  • Ensure vehicle compatibility with Audi and Volkswagen models listed before installation
  • Disconnect the battery before sensor replacement to prevent electrical issues
  • Handle the sensor carefully to avoid damage to the sensing element
  • Clean the sensor connector and surrounding area prior to installation
  • Verify proper sensor seating and secure electrical connections after installation

Quality Assurance and Warranty

Walker products are manufactured to meet or exceed OEM standards for durability and performance. The 245-1171 Mass Air Flow Sensor undergoes rigorous quality control to ensure reliable operation in emission control systems. Warranty coverage details should be confirmed with the product documentation or supplier.

This part fits 36 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2013VolkswagenGolf R2.0LL4N/AWalker Mass Air Flow Assembly
2012VolkswagenGolf R2.0LL4N/AWalker Mass Air Flow Assembly
2009AudiA42.0LL4N/AWalker Mass Air Flow Assembly
2009AudiA4 Quattro2.0LL4N/AWalker Mass Air Flow Assembly
2009AudiTT2.0LL4N/AWalker Mass Air Flow Assembly
2009VolkswagenBora2.0LL4N/AComplete Assembly
2009VolkswagenEos2.0LL4N/AWalker Mass Air Flow Assembly
2008AudiA32.0LL4N/AWalker Mass Air Flow Assembly
2008AudiA42.0LL4N/AWalker Mass Air Flow Assembly
2008AudiA4 Quattro2.0LL4N/AWalker Mass Air Flow Assembly
2008AudiTT2.0LL4N/AWalker Mass Air Flow Assembly
2008VolkswagenBora2.0LL4N/AComplete Assembly
2008VolkswagenEos2.0LL4N/AWalker Mass Air Flow Assembly
2008VolkswagenGTI2.0LL4N/AWalker Mass Air Flow Assembly
2008VolkswagenJetta2.0LL4N/AWalker Mass Air Flow Assembly
2008VolkswagenPassat2.0LL4N/AWalker Mass Air Flow Assembly
2007AudiA32.0LL4N/AWalker Mass Air Flow Assembly
2007AudiA42.0LL4N/AWalker Mass Air Flow Assembly
2007AudiA4 Quattro2.0LL4N/AWalker Mass Air Flow Assembly
2007VolkswagenBora2.0LL4N/AComplete Assembly
2007VolkswagenEos2.0LL4N/AWalker Mass Air Flow Assembly
2007VolkswagenGolf2.0LL4N/AComplete Assembly
2007VolkswagenGTI2.0LL4N/AWalker Mass Air Flow Assembly
2007VolkswagenJetta2.0LL4N/AWalker Mass Air Flow Assembly
2007VolkswagenPassat2.0LL4N/AWalker Mass Air Flow Assembly
2006AudiA32.0LL4N/AWalker Mass Air Flow Assembly
2006AudiA42.0LL4N/AWalker Mass Air Flow Assembly
2006AudiA4 Quattro2.0LL4N/AWalker Mass Air Flow Assembly
2006VolkswagenBora2.0LL4N/AComplete Assembly
2006VolkswagenGTI2.0LL4N/AWalker Mass Air Flow Assembly
2006VolkswagenJetta2.0LL4N/AWalker Mass Air Flow Assembly
2006VolkswagenPassat2.0LL4N/AWalker Mass Air Flow Assembly
2005AudiA32.0LL4N/AComplete Assembly
2005AudiA42.0LL4N/AWalker Mass Air Flow Assembly
2005AudiA4 Quattro2.0LL4N/AWalker Mass Air Flow Assembly
2004AudiA32.0LL4N/AComplete Assembly

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

06D90646106F906461A105054H77450055MAF0010MAF0052MAS0349MAS0378

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.