Used BMW 4 Series Rear Cross Member

The F32 coupé and F36 Gran Coupé share the same generation and platform, running from 2013 to 2020, but they are different body styles and the rear structures differ to suit their distinct rear ends. A cross member from an F32 is very unlikely to be a straight swap for an F36, and you should confirm the exact part number with the breaker against your registration before ordering.

The F3x 4 Series ran from 2013 to 2020 with a facelift in 2017, and while the platform remained the same, pressing and structural details can change across a mid-generation refresh. You should treat the pre-2017 and post-2017 cars as potentially different and confirm compatibility with the breaker against both registrations before buying.

Trim level does not affect the rear cross member — the structural component is the same whether your car is an SE, Sport, M Sport, or M Sport Pro. You may find that some sport variants have different underbody bracing or exhaust configurations nearby, so mention your trim to the breaker so they can pull the correct surrounding components alongside the cross member.

The 4 Series (F3x) shares its platform with the contemporary F3x 3 Series, but the 4 Series body styles — coupé, convertible, and Gran Coupé — have different rear body structures from the 3 Series saloon and estate. Confirm the specific part number with the breaker against your exact registration rather than assuming platform similarity means the cross member will transfer across.

Both the F33 convertible and F32 coupé sit within the same 2013–2020 generation, but the convertible has a significantly reinforced rear structure to compensate for the lack of a fixed roof, meaning the cross members are not the same. Always buy a cross member that came from the matching body style — F33 for convertible, F32 for coupé — and verify with the breaker against your registration.

Both years fall within the same F3x generation (2013–2020, facelift 2017), so provided the body style matches you have a reasonable chance of compatibility. That said, minor pressing changes can occur within a generation without a formal facelift, so confirm the part number with the breaker against your registration to be sure before purchasing.