Second Hand BMW i4 Flywheel

No — the BMW i4 is a fully electric vehicle and has no internal combustion engine, so it has no flywheel at all. Flywheels are components of combustion engine drivetrains and simply do not exist anywhere in the i4's powertrain. If you're looking for a rotating or drivetrain component on your i4, you may be thinking of something else entirely — common electric-vehicle equivalents to investigate include the electric motor rotor, reduction gear assembly, or drive shafts.

Almost certainly yes — because the i4 is a battery-electric car with no combustion engine, there is no flywheel fitted to any variant of it. A garage may be using loose terminology; on an electric vehicle the component they're concerned about is more likely to be part of the electric motor, the single-speed gearbox/reduction unit, or a driveshaft. Go back to the garage and ask them to confirm the exact part name and part number so you can search for the correct item.

Trim level is irrelevant here for an entirely different reason: no trim of the BMW i4 was ever fitted with a flywheel, because all variants are fully electric with no combustion engine. The eDrive35, eDrive40, and M50 differ in motor output, battery configuration, and whether they are rear-wheel or all-wheel drive, but none of those drivetrains include a flywheel. If you know which specific drivetrain your car has, that information will be useful when searching for the correct electric powertrain component instead.

This question doesn't apply — the BMW i4 launched in 2022 as a pure-electric model and has never had a flywheel in any production year, including post-facelift versions. There is therefore no used i4 flywheel available anywhere, and none that could cross between model years. If you need a drivetrain part for your i4, contact a breaker with your registration or VIN and describe the symptom or component location so they can identify the correct electric powertrain part.

That depends on the symptom or the repair your garage has identified — common electric-vehicle drivetrain parts on the i4 include the electric motor assembly, the single-speed reduction gearbox, CV driveshafts (NS or OS), and the rear drive unit on all-wheel-drive M50 variants. Give a breaker your exact registration or VIN along with the fault code or description and they will be able to identify whether a used part is available. Findapart can connect you with UK dismantlers who specialise in electric vehicles and are familiar with i4 components.