BMW i3 Throttle Body Replacement Parts

No — the BMW i3 is a pure battery-electric vehicle (BEV) in all its standard variants, and its electric motor has no combustion engine, no air intake system, and therefore no throttle body whatsoever. The range-extender version (the i3 REx, sold in the UK from around 2014) does have a small two-cylinder petrol engine, but even that tiny unit is controlled differently to a conventional throttle body setup and is not a part you would typically source as a standalone throttle body from a breaker. If you are searching for a throttle body and believe your car has one, it is worth double-checking you have the correct vehicle — the i3 is sometimes confused with other BMW models.

The i3 REx range-extender has a small 647cc two-cylinder petrol engine used solely to generate electricity and extend range, but this unit is not a conventional combustion drivetrain and sourcing individual engine ancillaries such as a throttle body for it through a standard breakers network is extremely unlikely. If you are experiencing a fault related to the REx engine, you should consult a BMW specialist or an EV-specialist garage rather than a used-parts breaker. It is possible the fault code or symptom you are chasing relates to an entirely different system, such as the inverter, motor controller, or charge management unit.

On the standard i3, power delivery to the electric motor is managed electronically through the inverter and motor controller, not through any mechanical throttle body — the accelerator pedal sends a signal directly to the drive electronics. If a breaker or parts website has suggested a throttle body for a BMW i3, it is worth going back and confirming the exact registration and drivetrain, as there may have been a misidentification. The part you may actually need, depending on your fault, could be related to the inverter, the DC-DC converter, a cooling system component, or a high-voltage system part — a BMW EV specialist can read the fault codes and point you in the right direction.

No — trim level makes absolutely no difference here, because neither the standard i3 nor the sportier i3s (introduced in 2017 with a more powerful 135kW motor and revised suspension) has a combustion engine in the BEV variants, so neither has a throttle body. The i3s is still a pure electric vehicle and shares the same fundamental drivetrain architecture as the standard i3. If you are looking for performance-related parts for an i3s, confirm the exact fault or requirement with a breaker who specialises in EV components.

This is almost certainly a listing error or a mismatched parts catalogue entry, as the 2014–2017 BMW i3 (the pre-facelift generation, before the 2017 refresh brought the i3s and updated battery options) is a pure electric vehicle with no throttle body. Online parts databases sometimes pull incorrect cross-references, particularly for EVs which share platform codes with conventional vehicles in some catalogue systems. Do not purchase a throttle body for a BMW i3 based on such a listing — contact a breaker directly with your registration to confirm whether any part they are offering genuinely applies to your vehicle.