Used BMW 8 Series Flywheel

It depends on the variant: 8 Series models fitted with a manual gearbox have a traditional flywheel, while those paired with an automatic gearbox use a torque converter and flexplate instead, so a conventional flywheel does not exist on the automatic versions. The current G-series 8 Series (2018-onwards) was only ever offered in the UK with an automatic gearbox, meaning a traditional flywheel is not applicable to these cars. The earlier E31 8 Series (1989-1999), however, was available with a manual gearbox on certain variants, so a flywheel does apply to those. If you are unsure which you have, check your V5 or run a VIN check and confirm the gearbox type with the breaker before ordering.

The E31 8 Series ran from 1989 to 1999, and fitment of a flywheel within this generation is governed primarily by the engine code and gearbox type rather than the model year alone. The 840Ci used the M60 V8 engine in earlier cars and the M62 V8 in later ones, and these engines use different flywheels, so you cannot assume any E31 flywheel is interchangeable without matching the engine code exactly. Confirm the engine code from your V5 or a VIN check and supply it to the breaker so they can cross-reference against the donor car.

Trim or badge level does not directly determine flywheel fitment; what matters is the engine code, fuel type, and gearbox type fitted to your specific car. The 850Ci used a different engine (V12 M70 or M73) compared to the 840Ci (V8 M60 or M62), so the flywheel will differ between those badges purely because the engines differ, not because of trim status as such. Always lead with your engine code when asking a breaker for a quote, as that single detail is more useful than the badge or trim name.

Engine-code matching across BMW models is a reasonable starting point, since BMW used the same M60, M62, and M73 family engines across several ranges, and the flywheel is primarily tied to the engine and gearbox pairing rather than the body it sits in. However, ancillary and mounting details can vary between applications mid-production, so while the engine code is the most important check, you should confirm suitability against your specific registration with the breaker before purchasing. A good breaker will cross-reference both the engine code and the gearbox code to give you the best chance of a correct match.

Whether any specific E31 8 Series variant was factory-fitted with a dual-mass flywheel rather than a solid flywheel depends on the engine code and production date, and this is not something to assume without checking. If your car has been modified or had a previous flywheel replacement, the current unit may already differ from factory spec. Confirm what type is currently fitted and what the breaker's unit is before agreeing a purchase, as the two types are not interchangeable.

All UK-market G-series 8 Series models (2018-onwards, covering the G15 coupe, G14 convertible, and G16 Gran Coupe) use automatic gearboxes and therefore have a flexplate rather than a conventional flywheel. A flexplate connects the engine to the torque converter and is a much lighter, simpler pressed-steel component compared to a flywheel, so make sure you search for the correct part name to get accurate quotes from breakers. Supply your engine code and registration to the breaker so they can match the correct flexplate to your specific variant.