Used BMW i4 Clutch Master Cylinder

No — the BMW i4 is a fully electric vehicle, and electric cars have no internal combustion engine, no gearbox with a clutch, and therefore no clutch master cylinder whatsoever. This part simply does not exist on any variant of the i4, including the eDrive35, eDrive40, M50, and xDrive40. If you are searching for this part, it is possible you have the wrong model noted down — double-check your V5 or run a VIN check to confirm the exact vehicle.

Almost certainly yes. The i4 uses one or two electric motors depending on the variant, and there is no clutch in the drivetrain at any point, so no clutch master cylinder would ever have been fitted from the factory. It is worth going back to whoever quoted the part and confirming there has not been a mix-up with a different BMW model, such as a 4 Series Gran Coupé (G26) which shares the i4's body but is available with petrol or diesel engines and a manual gearbox. Always verify against your registration number.

This question does not apply to the i4 because no version of the i4 — from its launch in 2021 through to current production — has ever been fitted with a clutch master cylinder. The i4 is a battery-electric vehicle across its entire production run, so there is no clutch or associated hydraulic components on any model year. If you need a hydraulic component from the i4's braking or cooling system, a breaker can advise on what is actually fitted to your specific registration.

The trim level makes no difference here because neither the eDrive40 nor the M50 — nor any other i4 variant — has a clutch master cylinder fitted. Both are fully electric and use single-speed reduction gearboxes that require no clutch. If you are looking for a drivetrain or transmission component specific to the M50's dual-motor xDrive setup versus the single-motor rear-drive variants, a breaker can point you to the correct part once you confirm your registration.

If you are experiencing a brake pedal or fluid-related issue on an i4, the part you may actually be looking for is a brake master cylinder, which is a separate component that does exist on electric vehicles. Alternatively, if you have been advised of a hydraulic fault, it could relate to the brake booster or ABS modulator — confirm the exact fault code and part with a breaker or BMW technician before ordering. It is also worth double-checking that the vehicle in question is definitely an i4 and not a conventionally engined 4 Series Gran Coupé, as the two share a very similar body.