Bmw 3 Series Mass Air Flow Sensor

Replacement mass air flow sensor — fitment, symptoms & live UK prices.

Fits Bmw 3 Series — check your reg/VIN to confirm

Mass Air Flow Sensor

£25–£90.

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Will it fit my Bmw 3 Series?

Sits in the intake pipework near the airbox — check the exact part number/connector for your engine code, as MAF sensors vary even within the same engine family.

Tip: filter by your reg on eBay's compatibility check, or match the part number stamped on your old unit.

Signs your Bmw 3 Series mass air flow sensor needs replacing

Hesitation or jerky acceleration
Rough idle, stalling
Poor economy
MAF fault code

Fitting it yourself

Usually a couple of screws and a connector — one of the quicker sensor swaps, but try dedicated MAF cleaner first, since dirt is a common false fault.

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Live prices£25–£90.

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