Second Hand BMW i3 Drive Shaft

The BMW i3 was produced from 2013 onwards, with a significant update in 2017 that brought the 120Ah battery and some mechanical revisions; within each of those phases fitment is generally consistent, but a shaft crossing the 2017 boundary should be confirmed with the breaker against your registration before buying, as mounting or spline details may have changed mid-production. The most reliable check is to supply the breaker with your exact VIN, which will identify your specific build rather than just the model year. Never assume year-to-year compatibility without that verification.

The i3 REx carries a small petrol range-extender engine alongside the electric motor, but crucially the electric drive motor and drive shafts are the same unit as the standard battery-electric i3 in the same production phase, so fuel type alone does not change the shaft itself. That said, you should still confirm the exact part reference with the breaker against both registrations, as ancillary differences between REx and BEV builds could affect what else needs to match. Supplying your VIN to the breaker is the safest approach.

Trim level as a cosmetic or equipment grade does not determine drive shaft fitment, but the i3s is a meaningful difference here because it uses a more powerful version of the electric motor producing 135 kW rather than the standard 125 kW, which can mean different shaft specifications; the i3s shafts should not be assumed to interchange directly with standard i3 shafts. Always tell the breaker whether your car is the i3s or the standard i3 when requesting a quote, and confirm the part reference matches your build. The cosmetic differences between the two – different bumpers, lowered suspension – are irrelevant to shaft fitment.

Yes, NS (nearside, passenger side) and OS (offside, driver side) shafts are different components on the i3 and are not interchangeable, so always specify which side you need when contacting a breaker. The lengths and CV joint specifications differ between the two sides, and ordering the wrong one will mean it simply will not fit. Double-check by confirming the side with the breaker against your registration to avoid a wasted journey.

The 2019 i3 falls within the post-2017 updated range while your 2015 car is from the original 2013–2017 generation, so these two cars sit either side of a known production boundary and the shafts cannot be assumed to interchange. Confirm with the breaker whether the specific part references match across that boundary before purchasing, as mechanical revisions at the 2017 update mean there may be differences that are not obvious from the outside. Providing both VINs to the breaker is the most reliable way to check compatibility.

Yes, the motor variant is the most important detail to get right – it is the equivalent of an engine code on a conventional car and should be your first port of call, ideally checked on your V5 or via a VIN check. Different motor outputs, such as the standard 125 kW unit versus the 135 kW i3s motor, can correspond to different shaft specifications, and fitting the wrong shaft risks poor fitment or premature failure. Always quote your exact motor code to the breaker rather than relying on the model name alone.