BMW i3 Starter Motor Replacement Parts

No — the BMW i3 is a fully electric vehicle (BEV) in its standard form and uses an electric drive motor, not a combustion engine, so it has no starter motor whatsoever. The REX (Range Extender) variant does include a small two-cylinder petrol engine, but that engine starts via its own integrated starter-generator unit rather than a conventional standalone starter motor. If you think you need a starter motor on your i3 REX, it is worth confirming with a breaker exactly which component has failed, as the part you actually need is likely the starter-generator or a related REX drivetrain component.

The i3 REX does not use a traditional starter motor in the way a conventional petrol or diesel car does; its small 647cc two-cylinder range-extender engine uses an integrated starter-generator (ISG) to start the combustion engine. If your REX is failing to start the petrol engine, the component you are most likely looking for is that starter-generator unit, not a conventional starter motor. Speak to a breaker and give them your registration so they can confirm the exact part needed for your vehicle.

No other BMW starter motor will be compatible with the i3, because the i3 simply does not use a conventional starter motor — and in the REX variant, the starting function is handled by a bespoke integrated starter-generator unique to that engine, not a unit shared with mainstream BMW petrol or diesel models. Fitting a conventional starter motor is not possible on any i3 variant. If you are searching for REX drivetrain parts, a breaker who specialises in BMW EVs or i-series vehicles will be your best starting point.

Listings for conventional starter motors on the BMW i3 are almost certainly mislabelled or listed in error, as no i3 variant — including the REX — uses a traditional starter motor. The REX range-extender engine does have a starter-generator, and it is possible some listings are attempting to describe that component using the wrong terminology. Always confirm the exact part description and part number with the breaker against your registration before purchasing anything.

Trim level makes no difference here — no BMW i3, regardless of whether it is a standard BEV, a REX, or any trim designation, was ever fitted with a conventional starter motor. The part simply does not exist on this model, so trim level, battery size (22kWh or 33kWh), or specification have no bearing on the answer. If you have a specific starting-related fault, describe the symptoms to a breaker who handles i-series vehicles and they can advise on the correct component.