Walker 245-1286 Mass Air Flow Sensor

Walker Mass Air Flow Assembly for Audi and Volkswagen

The Walker Mass Air Flow Assembly, part number 245-1286, is a direct-fit engine management sensor assembly for select Audi and Volkswagen applications. It is built with a housing included and a 5-terminal female connector layout for a clean replacement on vehicles that rely on accurate airflow measurement.

Walker Products has supplied fuel system and engine sensor components since 1946, with manufacturing and engineering support focused on meeting or exceeding OEM standards. The Walker Mass Air Flow Assembly line is backed by that experience for drivers servicing Audi TT Quattro, Audi TTS Quattro, Volkswagen Passat, Volkswagen Passat CC, Volkswagen CC, Volkswagen Touareg, and Audi Q7 applications.

Key Features

• Mass Air Flow Sensor assembly for emission control and engine management service
• Housing included for a complete replacement-style installation
• 5-terminal female connector
• Direct-fit replacement for select Audi and Volkswagen models
• Walker part number 245-1286 for easy identification

Detailed Product Information

This Walker Mass Air Flow Assembly is used to measure incoming air so the engine control system can calculate fuel delivery and maintain proper drivability. It is a practical replacement for vehicles showing airflow sensor-related faults, especially on turbocharged and V6-equipped Audi and Volkswagen platforms. This part cross-references Standard Ignition MAS0332 for the same application.

Compatible With 2011-2015 Audi TT Quattro, N/A; 2009-2015 Audi TTS Quattro, N/A; 2007-2010 Audi Q7, N/A; 2006-2008 Volkswagen Passat, N/A; 2009-2010 Volkswagen Passat, N/A; 2012-2013 Volkswagen Passat, N/A; 2009-2012 Volkswagen Passat CC, N/A; 2009-2011 Volkswagen CC, N/A; 2007-2010 Volkswagen Touareg, N/A.

Common Issues This Part May Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or poor throttle response during acceleration
• Check engine light related to mass air flow sensor performance
• Fuel trim problems from incorrect air measurement
• Driveability concerns on Audi TT Quattro, Audi TTS Quattro, and Volkswagen Passat applications

Installation Notes and Tips

Verify connector style, terminal count, and housing configuration before installation. Inspect the intake tract for contamination, loose clamps, or air leaks that can affect sensor readings. Clear diagnostic trouble codes after replacement and confirm proper idle and throttle response during a road test. Part number 245-1286 should be matched to the vehicle application before service.

Quality Assurance

Walker Products has a long history in the automotive aftermarket and operates with ISO 9001/IATF16949 certification. Its manufacturing and engineering teams support product accuracy, application coverage, and technical documentation for engine sensor replacement parts.