MAF Mass Air Flow Sensor For BMW 2008-2012 128i 328i 528i X3 X5 Z4 5WK97508Z

MAF Mass Air Flow Sensor for BMW

This MAF mass air flow sensor replaces 5WK97508Z, measuring intake air volume so the BMW engine control module can calculate the correct fuel mixture for efficient combustion.

Overview

This MAF mass air flow sensor is a direct replacement for 5WK97508Z, measuring the volume of air entering the engine so the ECU can deliver the right fuel mixture. It restores accurate air metering to the BMW 128i, 328i, 528i, X3, X5, and Z4. It suits drivers replacing a failed or dirty sensor that is causing check engine lights or rough running.

Built For Performance

• Direct replacement for OEM part number 5WK97508Z
• Accurate air flow measurement for proper fuel trim
• Sealed housing protects internal sensing elements
• Plug-and-play connector matches factory wiring
• Durable construction for consistent long-term readings

Fits These Machines

• for BMW 128i 2008-2012
• for BMW 328i 2008-2012
• for BMW 528i 2008-2012
• for BMW X3 2008-2012
• for BMW X5 2008-2012
• for BMW Z4 2008-2012

On-The-Job Use

• Restoring accurate fuel delivery after sensor failure
• Clearing lean or rich condition fault codes
• Improving idle quality and throttle response
• Maintaining fuel economy on daily drives

Specs At A Glance

Good To Know

Q: How do I know if my mass air flow sensor needs replacing? A: Common signs include a check engine light, rough idle, hesitation, and reduced fuel economy. A diagnostic scan for MAF-related codes can confirm the issue.

Q: Is this sensor easy to install? A: It mounts in the intake tract and connects to the factory harness, so basic hand tools are typically enough. Disconnect the battery before starting the job.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.