Cheap BMW 8 Series Engine Mount

The current 8 Series (G14/G15/G16, from 2018 onwards) is a completely different platform from the original E31 8 Series (1989–1999), so engine mounts between those two generations will not interchange at all. Even within each generation, the mount that fits depends primarily on which engine code your car has – a 3.0-litre six-cylinder M54B30 or S58 unit will use a different mount from a 4.4-litre V8 or V12. Always confirm the engine code from your V5 or a VIN check before ordering, and verify compatibility with the breaker against your registration.

Yes, all variants of the BMW 8 Series – whether the original E31 (1989–1999) or the modern G-series (G14 convertible, G15 coupé, G16 Gran Coupé, 2018 onwards) – use conventional rubber engine mounts to locate the engine in the subframe, so this is a genuine part across the entire model range. The specific mount differs by engine type, so a diesel 840d (B57 engine) will need a different mount from a petrol 840i (B58) or M850i (N63), and the M8 (S63) differs again. Confirming your exact engine code is the single most important step before sourcing a used mount.

Both the 2019 and 2021 M850i use the N63 V8 engine, so there is a strong chance the mounts are compatible, but mounting bracket and ancillary details can change during a production run without a formal model-year break. Name the engine code to the breaker and have them check it against your specific registration to be sure, rather than relying on model year alone.

Trim level itself makes no difference to engine mount fitment – what matters is the engine code underneath. The 840i uses a B58 petrol six-cylinder, the 840d uses a B57 diesel six-cylinder, and those two will use different mounts because the engines are physically different units; the M840i also uses a variant of the B58 family but confirm with the breaker whether its uprated tune involves any mounting differences. Cosmetic or interior trim differences between these grades are entirely irrelevant to the mount.

No – the E31 (1989–1999) and the G15 (2018 onwards) share no common platform, subframe geometry, or engine family, so their engine mounts are completely different parts and will not interchange. The E31 used engines such as the M60 and M62 V8s and the M70/M73 V12s, while the G-series uses modern B-series and N63/S63 units with entirely different mounting arrangements. Source each generation's parts separately and always quote the engine code to the breaker.

The G15 8 Series received a facelift update around 2022, and while the B57 diesel engine code carried across, ancillary and mounting detail changes mid-production are possible and cannot be confirmed here. Quote your exact engine code and registration to the breaker so they can check the part against your specific vehicle build date, rather than assuming pre- and post-facelift mounts are identical.