Walker 245-2281 Mass Air Flow Sensor

Walker Sensor Only Mass Air Flow Sensor

Walker 245-2281 is a sensor-only mass air flow sensor for select Audi and Volkswagen applications. It is built as a new, programmed, and tested replacement designed to restore accurate airflow measurement for proper engine management.

The Sensor Only line is aimed at faster, more economical MAF replacement when the housing is still serviceable. For 2018 Audi Q3 and Q3 Quattro, as well as Volkswagen Tiguan, GTI, Jetta, Passat, CC, Eos, Beetle, and related applications, this part number 245-2281 provides a direct-fit sensor solution.

Key Features

• Sensor-only mass air flow sensor
• Black housing finish
• 5-terminal blade pin connector
• Female connector with oblong shape
• 2 mounting holes
• 100% new, not remanufactured
• Programmed and tested for fit, form, and function
• Built with OEM-quality components and custom circuit board programming

Product Details

Walker Products engineers its MAF sensors with tuned flow characteristics across the full airflow range so the engine control module receives the signal it expects. Part number 245-2281 is part of the Sensor Only program, which is intended for vehicles where the existing housing can be retained and only the sensing element needs replacement. Walker also verifies calibrations through production testing and on-vehicle validation, with many high-demand applications manufactured in the USA.

This part cross-references no listed interchange numbers in the provided data. Compatible with 2018 Audi Q3, 2018 Audi Q3 Quattro, 2017-2018 Volkswagen Tiguan Limited, 2009-2017 Volkswagen CC, 2009-2017 Volkswagen Tiguan, 2009-2016 Volkswagen Eos, 2008-2014 Volkswagen GTI, 2011-2013 Audi A3, 2008 Audi A3, 2011-2013 Audi A3 Quattro, 2012-2013 Volkswagen Beetle, 2012-2013 Volkswagen Jetta, 2008-2010 Volkswagen Jetta, 2009-2010 Audi TT Quattro, 2008-2010 Volkswagen Passat, and 2009 Audi TT, sensor only.

Common Issues This Part Can Address

• Rough idle caused by inaccurate airflow readings
• Check engine light related to MAF sensor performance
• Hesitation or poor throttle response during acceleration
• Incorrect fuel trim readings from a worn or contaminated sensor
• Driveability problems after MAF contamination or sensor failure

Installation Notes

Before installation, inspect the air intake tract, connector, and sensor mounting area for dirt, oil, or damage. Because this is a sensor-only replacement, confirm that the existing housing is clean and in good condition. Handle the sensing element carefully and avoid touching it with bare hands. Verify the connector style, terminal count, and mounting pattern before installation.

Quality Assurance

Walker Products has supplied fuel system components since 1946 and is an ISO 9001 and IATF 16949 certified manufacturer. This MAF sensor is new, programmed, and tested before release, with calibration verification performed through production and vehicle testing.