Walker 245-1605 Mass Air Flow Sensor

Walker Complete Assembly Mass Air Flow Sensor

Walker 245-1605 is a complete assembly mass air flow sensor built for direct replacement on select Audi and Volkswagen applications. It is a 100% new sensor, programmed and tested before release, with a housing assembly that supports clean, accurate airflow measurement.

The Walker Complete Assembly line is designed for buyers who want a sensor and housing solution rather than a sensor-only service part. Walker engineers tune the flow characteristics across the operating range, and production testing verifies calibration and on-vehicle performance before the part is made available.

Key Features

• Complete assembly mass air flow sensor for select Audi and Volkswagen vehicles
• 100% new, never remanufactured
• Programmed and tested for fit, form, and function
• Custom tuned flow characteristics across the full flow spectrum
• OEM-quality components with custom engineered circuit boards
• Black housing with oblong female connector
• 4-terminal blade pin design with 2 mounting holes

Detailed Product Information

Walker Products has supplied fuel system and engine sensor components since 1946 and manufactures ISO 9001 / IATF 16949 certified parts. Part number 245-1605 is part of the Complete Assembly program, which combines the sensor and housing for applications where the full assembly is preferred. This approach helps maintain clean connector air tubes and reduces the chance of contamination affecting the sensing element. This part cross-references 04L906461B for the same application.

Compatible With Audi A3, Audi A3 Quattro, Audi A4, Audi A4 Quattro, Audi A5 Quattro, Audi A5 Sportback, Audi A6 Quattro, Audi A7 Sportback, Audi A1, Audi Q3, Audi S3, and Volkswagen Tiguan, Arteon, Passat, Beetle, and Vento applications. If you are replacing a mass air flow sensor on an Audi A4 or Volkswagen Tiguan, Walker 245-1605 provides a direct-fit complete assembly option.

What This Part Helps Address

• Rough idle caused by inaccurate airflow readings
• Check engine lights related to mass air flow sensor performance
• Hesitation or poor throttle response during acceleration
• Fuel trim issues from a contaminated or failing MAF sensor
• Driveability problems tied to incorrect air metering

Installation Notes and Tips

Before installation, inspect the intake tract, connector, and air tubes for dirt, oil residue, or damage. Because this is a complete assembly, verify the housing orientation and connector style match the original unit. Avoid touching the sensing element and confirm the intake system is sealed after installation. Fits 2022-2024 Audi A3, N/A; Fits 2017-2020 Audi A3, N/A; Fits 2022-2024 Audi A3 Quattro, N/A; Fits 2020 Audi A3 Quattro, N/A; Fits 2021-2024 Audi A5 Quattro, N/A; Fits 2019 Audi A5 Quattro, N/A; Fits 2021-2024 Audi A5 Sportback, N/A; Fits 2019 Audi A5 Sportback, N/A; Fits 2019-2024 Audi A6 Quattro, N/A; Fits 2019-2024 Audi Q3, N/A; Fits 2022-2024 Audi S3, N/A; Fits 2018-2024 Volkswagen Tiguan, N/A; Fits 2017-2023 Audi A4, N/A; Fits 2019-2023 Volkswagen Arteon, N/A; Fits 2021-2022 Audi A7 Sportback, N/A; Fits 2018-2022 Volkswagen Passat, N/A; Fits 2020 Audi A1, N/A; Fits 2018-2019 Volkswagen Beetle, N/A; Fits 2018 Volkswagen Vento, N/A; Fits 2016 Volkswagen Vento, N/A; Fits 2017 Audi A4 Quattro, N/A.

Quality Assurance

Walker Products tests each sensor for calibration and verifies performance with on-vehicle validation before release. The brand’s manufacturing program uses OEM-quality components and production controls aligned with its ISO 9001 / IATF 16949 certified operations.