Walker 245-1231 Mass Air Flow Sensor

Walker Mass Air Flow Assembly for Mercedes-Benz

Walker Mass Air Flow Assembly Part Number 245-1231 is a direct-fit mass air flow sensor assembly for select Mercedes-Benz and Dodge Sprinter applications. It is built with a housing included and a 5-terminal female connector, making it a practical replacement for vehicles that need accurate airflow measurement for engine management.

Walker Products has supplied fuel system and engine sensor components since 1946, and the Walker Mass Air Flow Assembly line reflects that focus with OE-standard manufacturing, engineering support, and application accuracy. Part number 245-1231 is listed for Mercedes-Benz C250, C300, C350, E350, ML350, GL450, GL550, S550, SLK350, and related models.

Key Features

• Mass air flow sensor assembly for emission control and engine management systems
• Housing included for a complete assembly-style replacement
• 5-terminal female connector
• Designed for select Mercedes-Benz and Dodge Sprinter applications
• Walker Mass Air Flow Assembly 245-1231

Detailed Description

This Walker mass air flow sensor assembly measures incoming air so the engine control system can calculate fuel delivery more accurately. It is a strong match for long-tail searches such as Mercedes-Benz C300 mass air flow sensor assembly, Mercedes-Benz E350 MAF sensor replacement, and Mercedes-Benz GL450 airflow meter assembly. This part cross-references Bosch 0280218190 for the same application.

Compatible With 2005-2015 Mercedes-Benz G550, S400, C250, C300, GL450, GL550, GLK350, SL550, C350, CLS550, E350, E550, ML350, ML450, ML550, R350, S450, S550, SLK300, SLK350, CL550, CLK350, CLK550, C230, C280, SLK280; and 2007-2008 Dodge Sprinter 2500 and Sprinter 3500.

Common Issues This Part May Address

• Rough idle caused by inaccurate airflow readings
• Hesitation or poor throttle response
• Check engine light related to mass air flow sensor faults
• Incorrect air-fuel mixture affecting drivability
• Reduced engine performance from a failing MAF assembly

Installation Notes and Tips

Verify connector style, terminal count, and housing configuration before installation. This assembly uses a female connector and does not include mounting hardware. Confirm the vehicle application against the listed fitment for Mercedes-Benz C250, E350, ML350, and other supported models before replacing the sensor.

Quality Assurance

Walker Products manufactures engine sensor and fuel system components to meet or exceed OEM standards and specifications. The company supports production with in-house engineering, product management, and technical documentation, and operates as an ISO 9001/IATF16949 certified manufacturer.