1997-2000 BMW 528i Mass Air Flow Sensor
Specifications
Donor year
2000
Body style
Wagon
Fuel
Gas
Engine size
2.8 L
Engine code
M52TU
Engine type
2.8L I6
Transmission
Automatic
Drivetrain
RWD
About this part
Also known as
Mass Air Flow Sensor
MAF Sensor
Air Mass Meter
Air Flow Meter
AFM
MAF
What this part does
The Mass Air Flow Sensor measures the volume and density of air entering the engine. It is mounted in the intake tract directly between the air filter housing and the throttle body. The engine control module uses this critical airflow data to calculate and deliver the correct amount of fuel for optimal combustion. When this component fails, the vehicle typically experiences hesitation on acceleration, rough idling, poor fuel economy, or stalling, and will often trigger a check engine light with lean or rich system fault codes.
Fits these vehicles
| Make | Model | Years | Engine |
|---|---|---|---|
| BMW | 528i | 1999-2000 | 2.8L |
| BMW | 328i | 1999-2000 | 2.8L |
| BMW | 328ci | 2000 | 2.8L |
| BMW | Z3 | 1999-2000 | 2.8L |
OEM and interchange numbers
13621432356
13 62 1 432 356
5WK9605
5WK9605Z
Before you order
Verify the part number stamped on your original sensor housing before ordering. The M52TU engine utilizes a different air mass meter than the earlier single-VANOS M52 or the later M54 engines, and they are not interchangeable due to different scaling and connector shapes. Check your intake boot for cracks or vacuum leaks, as unmetered air entering after the sensor will mimic a faulty mass air flow reading. After installation, it is highly recommended to reset the engine adaptation values using a diagnostic scanner to ensure proper fueling.