Walker 245-1268 Mass Air Flow Sensor

Walker Mass Air Flow Assembly for Mercedes-Benz

The Walker Mass Air Flow Assembly, part number 245-1268, is a direct-fit engine management sensor assembly for select Mercedes-Benz applications. It is built with a housing included and a 4-terminal female connector to support accurate airflow signal delivery in the intake system.

Walker Products has supplied fuel system and engine sensor components since 1946, with manufacturing and engineering processes focused on meeting or exceeding OEM standards. The Walker Mass Air Flow Assembly line is backed by product management and technical support for application accuracy and part consistency.

Key Features

• Mass air flow sensor assembly for emission control and engine management service
• Housing included for a complete replacement assembly
• 4-terminal female connector
• Direct application coverage for select Mercedes-Benz CL500, S420, S500, SL500, and E420 models
• Walker part number 245-1268

Detailed Description

Walker 245-1268 is a mass air flow sensor assembly used to measure incoming air volume for the engine control system. Accurate airflow input helps the vehicle computer manage fuel delivery and drivability across the supported Mercedes-Benz applications, including 1998-1999 Mercedes-Benz CL500, 1996-1999 Mercedes-Benz S420, 1998-1999 Mercedes-Benz S500, 1997-1998 Mercedes-Benz SL500, and 1997 Mercedes-Benz E420. This part cross-references Spectra Premium MA361 for the same application.

What This Part Helps Address

• Rough idle caused by incorrect airflow signal input
• Hesitation or stumble during acceleration
• Check engine light related to mass air flow sensor faults
• Poor fuel control from a failing intake air measurement assembly
• Driveability issues on Mercedes-Benz CL500, S420, S500, SL500, and E420 models

Installation Notes and Tips

Verify connector style, terminal count, and housing configuration before installation. This assembly uses a female connector and includes the housing; mounting hardware is not included. Confirm the vehicle application by year and model before replacing the original sensor assembly. For best results, inspect the intake tract for leaks, contamination, or damaged wiring that could affect sensor readings.

Quality Assurance

Walker Products has a long history in the automotive aftermarket and manufactures engine sensor components to meet or exceed OEM standards and specifications. The company operates with ISO 9001/IATF16949 certification and supports product accuracy through in-house engineering and technical resources.