Walker 245-2254 Mass Air Flow Sensor

Walker Sensor Only Mass Air Flow Sensor 245-2254

Walker 245-2254 is a sensor-only mass air flow sensor for select Audi, Porsche, and Volkswagen applications. It is built as a standard replacement MAF sensor with a 5-terminal blade connector, oblong female plug, and flange mounting style for direct service on the listed vehicles.

Sensor Only Replacement Design

The Sensor Only line from Walker focuses on replacing the sensing element without the housing assembly. This approach is often chosen when the original housing is serviceable and the technician wants a faster, more economical repair path. Walker also programs and tests each sensor for fit, form, and function before release, with OE-quality components and calibrated flow characteristics.

• Part number 245-2254 mass air flow sensor
• Sensor only design; housing not included
• Standard replacement grade
• 5-terminal blade connection with female oblong connector
• Plastic housing material
• Flange mount with 2 mounting holes
• Mounting hardware included
• Fits 2014-2016 Audi A6 Quattro, N/A
• Fits 2014-2016 Audi A7 Quattro, N/A
• Fits 2014-2016 Audi Q5, N/A
• Fits 2013-2016 Porsche Cayenne, N/A
• Fits 2009-2016 Volkswagen Touareg, N/A
• Fits 2009-2015 Audi Q7, N/A

What This MAF Sensor Helps Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or poor throttle response during acceleration
• Check engine lights related to mass air flow sensor performance
• Fuel trim issues from incorrect air measurement
• Driveability problems on Audi Q7, Audi Q5, Porsche Cayenne, and Volkswagen Touareg applications

Installation Notes

Before installation, inspect the intake tract, connector, and surrounding air tubes for contamination or damage. Handle the sensing element carefully and avoid touching it with bare hands or exposing it to oil residue. On some vehicles, replacing the complete housing assembly is recommended if the air path or connector area is contaminated.

For fitment-specific service, confirm the vehicle application before ordering. This part is listed for 2014-2016 Audi A6 Quattro, 2014-2016 Audi A7 Quattro, 2014-2016 Audi Q5, 2013-2016 Porsche Cayenne, 2009-2016 Volkswagen Touareg, and 2009-2015 Audi Q7.

Quality Assurance

Walker Products manufactures fuel system and engine sensor components under ISO 9001 and IATF 16949 quality systems. The 245-2254 is 100% new, programmed, and tested for fit, form, and function, with production verification and on-vehicle validation used during development.