Used BMW M4 Timing Chain

Yes, the BMW M4 uses a timing chain rather than a timing belt across all of its generations, so a used timing chain is a legitimate part to source for this model. The S55 engine in the F82 M4 (2014–2020) and the S58 engine in the G82 M4 (2021-onwards) are both chain-driven. Because the chain is internal to the engine, condition and mileage of the donor vehicle matter — ask the breaker about the service history and whether any chain stretch or rattle was present before the car was dismantled.

Both years sit within the F82 generation (2014–2020) and share the S55 3.0-litre twin-turbocharged inline-six engine, so the timing chain itself should be the same specification. However, BMW made various ancillary and mounting updates throughout this generation, so confirm with the breaker against your exact registration and engine code before purchasing. Supplying your engine code — found on your V5 or via a VIN check — gives the breaker the best chance of matching the part correctly.

Yes, there is a significant difference — the F82 M4 (2014–2020) uses the S55 engine, while the G82 M4 (2021-onwards) uses the S58 engine, and these are entirely different units with different timing chain assemblies. A chain from an S55 donor will not be correct for an S58 car and vice versa. Always confirm your engine code with the breaker rather than relying on the M4 badge alone, as this is the most reliable way to ensure you are quoted the right part.

Trim level does not affect timing chain fitment — what matters is the engine code, not whether the car is a standard M4 or a Competition variant. Both the standard and Competition versions of the F82 use the S55 engine, and both the standard and Competition versions of the G82 use the S58, so the chain spec follows the engine rather than the badge. Bear in mind that Competition models may have differences in other drivetrain components, but the timing chain itself is determined by the engine code.

The F82 M4 ran from 2014 to 2020 and was not subject to a major structural facelift in the way some models are; it retained the S55 engine throughout its production run. On that basis, the timing chain specification should be consistent across the generation, but BMW did make running production changes during this period. Confirm with the breaker against both registrations and engine codes to make sure there are no mid-run differences that could affect compatibility, rather than assuming a 2015 donor chain will be a straight swap.

The single most useful piece of information is your engine code, which you can find on your V5 logbook or by running a VIN check — this immediately tells the breaker whether your car has an S55 or S58 engine and narrows down the correct part. You should also provide your registration number, the year of your vehicle, and your gearbox type (manual or automatic), as these help the breaker cross-reference their stock accurately. Body style and colour make no difference to timing chain fitment, so there is no need to specify those.