Used BMW i3 Air Flow Meter

No — the BMW i3 is a fully electric vehicle (BEV) in its standard form and, in its range-extender (REX) variant, uses a tiny two-cylinder petrol engine purely as a generator rather than a conventional combustion drivetrain. Neither layout uses an air flow meter (mass airflow sensor), as that component is part of the fuelling and engine management system found in traditional petrol or diesel engines. If you are searching for an air flow meter for an i3, it is likely you have the wrong model noted down — double-check your V5 or run a VIN check, as you may actually own a different BMW (such as a 1 Series or 3 Series) that shares some body or trim references.

It is almost certainly incorrect. The i3 REX range-extender does contain a small two-cylinder petrol engine, but it operates at fixed, limited loads as a generator and does not use a conventional air flow meter in the way a standard petrol engine would. No air flow meter (MAF sensor) is listed as a serviceable or replaceable part for the i3 REX powertrain in mainstream parts references. We would suggest going back to the supplier with your full VIN to confirm what part they are actually quoting you, as there may have been a mis-identification.

No air flow meter fitment guidance applies to the i3 because the part does not exist on any variant of this model — neither the standard electric version nor the REX range-extender. Fitting a part from another BMW is therefore not a relevant question here. If a breaker or listing is suggesting otherwise, ask them to verify the application against your specific VIN before proceeding.

If you are experiencing performance or warning-light issues on an i3, the relevant components to investigate are electric-drivetrain parts such as the inverter, battery management system, or charging components, rather than fuelling-related sensors. For i3 REX owners, faults sometimes relate to the small generator engine's throttle body or lambda (oxygen) sensor, which are occasionally confused with air flow meter symptoms — a breaker or auto-electrician familiar with the i3 REX would be the best first port of call. Always provide your full VIN when speaking to a breaker so they can identify the correct part for your exact build.