Walker 245-1285 Mass Air Flow Sensor

Walker Mass Air Flow Assembly 245-1285

Restore accurate airflow measurement with the Walker Mass Air Flow Assembly 245-1285. This mass air flow sensor assembly is built for direct replacement service on select Audi applications, including Audi R8, Audi S6, Audi A8 Quattro, and Audi S8 models. It features a 5-terminal female connector and includes the housing for a cleaner, application-specific repair.

Key Features

• Walker Mass Air Flow Assembly, part number 245-1285
• Housing included for a complete sensor assembly replacement
• 5-terminal female connector
• Direct-fit service part for select Audi airflow sensor applications
• Built by Walker Products, a long-standing fuel system and engine sensor manufacturer

Product Details

Walker Products has supplied fuel system and engine management components since 1946, with manufacturing and engineering support focused on meeting or exceeding OEM standards and specifications. The Walker Mass Air Flow Assembly line is part of that broader engine sensor portfolio, which is backed by ISO 9001/IATF16949 certified quality systems. For buyers searching for a Walker 245-1285 mass air flow sensor for Audi R8 or a replacement mass air flow assembly for Audi S6, this part provides a fitment-specific solution for airflow metering service.

This part cross-references Standard Ignition MAS0439 for the same application.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Hesitation during acceleration
• Reduced fuel economy from incorrect air-fuel calculation
• Check engine light related to mass air flow sensor performance
• Poor throttle response on affected Audi engine management systems

Installation Notes

Verify connector style, terminal count, and housing configuration before installation. This assembly uses a female connector with 5 terminals and does not include mounting hardware. Confirm the vehicle application against the listed fitment before replacing the original sensor assembly. For best results, inspect the intake tract for leaks, contamination, or damaged wiring that could affect sensor readings.

Quality Assurance

Walker Products manufactures engine management components to meet or exceed OEM standards and specifications. The company supports production with its own product management and engineering staff and maintains ISO 9001/IATF16949 certification for quality control.

Compatible Vehicles

• Fits 2014-2015 Audi R8, N/A
• Fits 2008-2012 Audi R8, N/A
• Fits 2007-2011 Audi S6, N/A
• Fits 2005-2009 Audi A8 Quattro, N/A
• Fits 2007-2009 Audi S8, N/A