Continental 5WK9642Z Mass Air Flow Sensor

Continental MAF Sensor for BMW Engine Management

The Continental 5WK9642Z mass air flow sensor is a genuine OEM-style replacement built to original equipment specifications. It measures incoming air for accurate fuel delivery, helping the engine run smoothly, maintain fuel economy, and support consistent performance.

Key Features

• Part number: 5WK9642Z
• Mass air flow sensor for emission control and engine management systems
• 12V electrical specification
• Black plastic housing
• 1 connector with 6 male blade terminals
• Wiring harness not included
• Direct-fit Continental OEM replacement

Product Details

Continental manufactures this MAF sensor to match the fit, form, and function of the original component used in BMW applications. The sensor helps the engine control module calculate airflow more precisely, which supports proper air-fuel ratio control and stable drivability. This part number 5WK9642Z is used in BMW 325Ci, 330Ci, 330i, 325i, X3, and Z4 engine management applications across the listed model years.

This part cross-references Bosch-style and OEM replacement numbers such as 13627513956 and MF21168 for the same application.

What It Helps Address

• Rough idle caused by inaccurate airflow readings
• Reduced fuel economy from incorrect fuel metering
• Check engine light related to mass air flow sensor faults
• Hesitation or poor throttle response during acceleration
• Engine performance issues tied to contaminated or failing MAF sensors

Installation Notes

Verify the connector style, terminal count, and housing shape before installation. This sensor uses a single 6-terminal male blade connector and does not include a wiring harness. For best results, inspect the intake tract for leaks, dirt, or oil contamination that can affect airflow readings. Confirm vehicle-specific fitment for BMW 325Ci, 330Ci, 330i, 325i, X3, and Z4 engine management applications before ordering.

Quality Assurance

Continental builds this sensor to original equipment specifications and OE-level fitment standards. It is manufactured as a genuine OEM part for dependable integration with the vehicle’s engine management system.