Walker 245-1171 Mass Air Flow Sensor

Walker Mass Air Flow Assembly 245-1171

Walker Mass Air Flow Assembly 245-1171 is a direct-fit engine management replacement for select Audi and Volkswagen applications. It is built to meet or exceed OEM standards and specifications, with support from Walker’s manufacturing, engineering, and product management teams.

Compatible With 2004-2013 Audi and Volkswagen models, this mass air flow sensor assembly supports accurate airflow measurement for drivability and fuel control. The Walker Mass Air Flow Assembly line is backed by Walker Products’ long history in fuel system and engine sensor manufacturing.

Key Features

• Mass air flow sensor assembly for emission control and engine management systems
• OE-style replacement for select Audi A3, A4, A4 Quattro, TT, and Volkswagen Golf R, GTI, Jetta, Passat, Eos, Bora, and Golf applications
• Built to Walker’s OEM-level specification targets
• Supported by in-house manufacturing, engineering, and technical documentation
• Cross-references Hitachi Automotive MAF0010 and MAF0052 for the same application

Product Details

Walker part number 245-1171 is part of the Walker Mass Air Flow Assembly product line, which focuses on engine sensor accuracy and consistent application coverage. Walker Products has supplied fuel system and engine management components since 1946 and maintains ISO 9001/IATF16949 certification. This part cross-references Standard Ignition MAS0349 and MAS0378 for the same application.

Vehicle Fitment

• Fits 2012-2013 Volkswagen Golf R, N/A
• Fits 2005-2009 Audi A4, N/A
• Fits 2005-2009 Audi A4 Quattro, N/A
• Fits 2008-2009 Audi TT, N/A
• Fits 2006-2009 Volkswagen Bora, N/A
• Fits 2007-2009 Volkswagen Eos, N/A
• Fits 2006-2008 Audi A3, N/A
• Fits 2006-2008 Volkswagen GTI, N/A
• Fits 2006-2008 Volkswagen Jetta, N/A
• Fits 2006-2008 Volkswagen Passat, N/A
• Fits 2007 Volkswagen Golf, N/A
• Fits 2004-2005 Audi A3, N/A

Common Symptoms 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
• Reduced fuel economy from incorrect air-fuel calculations
• Driveability issues after sensor contamination or failure

Installation Notes

Verify the part number and vehicle application before installation. Inspect the intake tract, air filter housing, and electrical connector for contamination, damage, or loose connections before replacing the sensor assembly. Follow the vehicle service procedure and clear diagnostic trouble codes after installation if required.

Quality Assurance

Walker Products manufactures engine sensors and fuel system components to meet or exceed OEM standards and specifications. The company supports production with engineering, product management, and technical documentation resources, and operates under ISO 9001/IATF16949 certification.