BMW i3 Engine Mount Replacement Parts

The BMW i3 is a fully electric vehicle (BEV) or range-extender hybrid (REX) — it does not have a conventional combustion engine in the traditional sense, so there is no engine mount of the type found on petrol or diesel cars. The electric drive motor is mounted directly within the rear axle assembly and is secured by motor mounts or subframe bushes, which are the parts you are likely looking for. If your i3 has the REX variant, it does carry a small two-cylinder petrol range-extender unit at the rear, which has its own mounting arrangement, but this is not a conventional engine mount either. Please search for 'electric motor mount', 'rear subframe bush', or 'REX range-extender mount' depending on your variant, and confirm the exact part needed with a breaker against your registration.

On the i3, the electric drive motor sits within the rear axle cradle and is held by rubber mounts and subframe bushings, so worn or failed mounts in this area can cause knocking or vibration — this is the closest equivalent to what people call an engine mount on a conventional car. The i3 was produced from 2013 to 2022 in one generation, with a facelift in 2017 that brought visual and specification updates, so when sourcing used parts you should confirm whether the donor car is pre-facelift (2013–2016) or post-facelift (2017–2022), as mounting arrangements may differ across that boundary. Supply your registration or full VIN to the breaker so they can verify the correct part, as mounting changes can occur mid-production without a clear model-year cut-off.

The BMW i3 ran in a single generation from 2013 to 2022, with a notable facelift arriving in 2017, and it is not certain that all underbody mounting components are interchangeable across that 2017 boundary. While the fundamental rear-wheel electric drivetrain layout remained consistent throughout production, detail changes to the rear subframe or motor mounting points may have occurred, particularly around the facelift. You should not assume a 2015 (pre-facelift) part will drop straight onto a 2019 (post-facelift) car — confirm compatibility with the breaker using both vehicles' full VINs before purchasing.

Yes, this matters significantly — the REX variant carries an additional small two-cylinder petrol generator unit mounted at the rear, which has its own separate mounting components that the pure electric BEV does not have at all. The BEV and REX therefore have different rear-end mounting arrangements, and parts from one variant may not suit the other. Always tell the breaker which variant you have, as this is more important than the model year when identifying the correct mounts.

No — the i3 was offered in trim levels including the base i3, i3s (sportier suspension and wider body), and various Edition and Suite specification packs, but trim level does not determine the motor mounting components. The i3s does have a different suspension tune and marginally different rear setup due to its wider track, so it is worth confirming with the breaker whether you have a standard i3 or an i3s, as that distinction carries more mechanical relevance than a trim pack name. Confirm against your registration to be certain the donor car matches your specific variant.

UK dismantlers (breakers) who specialise in EVs or in BMW are your best source for used i3 rear motor mounts and subframe bushes, as main dealer parts for this model can be expensive. When contacting a breaker through a marketplace like Findapart, supply your full registration or VIN, confirm whether you have the BEV or REX variant, and note whether your car is pre-facelift (2013–2016) or post-facelift (2017–2022) to help them locate the right donor vehicle. Because the i3 is a specialist EV with a unique drivetrain, always ask the breaker to verify the part number against your car before committing to a purchase.