Mercedes-Benz CLS Flywheel Replacement Parts

It depends on the gearbox type fitted to your specific CLS. Manual-gearbox CLS models use a conventional solid flywheel, while those fitted with a 7G-Tronic automatic gearbox use a flex-plate (sometimes called a flexplate or drive plate) rather than a traditional flywheel — so if your CLS is automatic, which the vast majority in the UK are, the part you are almost certainly looking for is a flex-plate, not a flywheel. Confirm which gearbox your car has (check your V5 or run a VIN check) before ordering, and let the breaker know so they can supply the correct part.

The W219 and W218 are entirely different generations with different engine and gearbox families, so a flywheel or flex-plate from a W219 will not simply transfer across to a W218 — these generations should be treated as separate searches. Even within each generation, the correct part is determined primarily by the engine code and gearbox type, not just the model year. Always confirm the engine code from your V5 or a VIN check and pass it to the breaker, as this is the most reliable way to identify the right part.

Yes, engine code matters more than the badge here — a 220d, 250d, and 350 BlueTEC all use different engines and can have different flex-plate specifications, so they are not interchangeable. The engine code stamped on your V5 (for example OM651 for the 2.1-litre diesel or OM642 for the 3.0-litre diesel) is the single most useful detail you can give a breaker when sourcing this part. Do not assume that the same badge on a different year or facelift variant means the same part will fit, and always verify with the breaker against your specific registration.

The W218 CLS facelift arrived in 2014 and brought some changes, but whether those changes affected the flex-plate for your specific engine depends on details that can vary by engine code and build date. The engine code is your safest guide — if the engine code is identical on both cars, fitment is much more likely, but mid-production ancillary and mounting changes cannot be ruled out. You should confirm compatibility with the breaker directly, quoting both the engine code and your registration, before purchasing.

No, the trim level makes no difference to flywheel or flex-plate fitment — AMG Line, SE, and any other CLS trim designation are purely cosmetic and equipment-level distinctions that do not affect the drivetrain components. What matters is the engine code, fuel type (diesel or petrol), and gearbox type. Source the part by engine code and let the breaker check availability against your registration.

The CLS 63 AMG uses a high-output AMG V8 engine (the M157 in the W218 generation) paired with AMG's own version of the automatic gearbox, and so it uses a flex-plate rather than a traditional flywheel. Because the AMG powertrain is significantly different from the standard CLS engine range, a flex-plate from a non-AMG CLS is very unlikely to be compatible — you should source the part specifically from a CLS 63 AMG or confirm with a breaker who can match the part to your exact engine code and registration.