Air Mass Sensor 5Pin Oval (330D 525D 530D 730D M57) (BMW 3 Series E46 / 5 Series E39 / 7 Series E38) is a sensor designed to measure the amount of air entering the engine. This information is critical for the engine control unit to balance and deliver the correct fuel amount, ensuring efficient combustion. The sensor’s 5-pin oval design is specific to certain BMW diesel models, including the 330D, 525D, 530D, and 730D with the M57 engine.
This unit fits a range of BMW series: the 3 Series E46, 5 Series E39, and 7 Series E38. When comparing with an existing part, ensure the sensor’s pin configuration and shape match, as fitment depends heavily on connector type and mounting. The part acts as a key component in the vehicle’s air intake system, influencing performance and emissions by delivering accurate air mass readings.
While this sensor is essential for correct engine management, note that coding, calibration, or fault repairs are not included or guaranteed with this part. Buyers should verify compatibility with their vehicle’s exact model and engine before purchase, and may consider consulting a professional for installation and any necessary ECU adjustments.
- Sensor type: Air Mass Sensor
- Pin configuration: 5Pin Oval
- Compatible BMW models: 3 Series E46, 5 Series E39, 7 Series E38
- Compatible engines: 330D, 525D, 530D, 730D M57 diesel engines
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