Used BMW 4 Series Brake Light Switch

The BMW 4 Series F32 generation ran from 2013 to 2020, with a facelift in 2017, and the brake light switch is a genuine part fitted across this generation. In most cases the switch is common across the F32 generation regardless of facelift year, but whether a pre-2017 unit crosses cleanly to a post-2017 car is worth confirming with the breaker against your registration, as minor connector or specification changes can occur at a refresh. Ask the breaker to check your reg before they pull the part.

The F32 (2013–2020) and G22 (2021 onwards) are entirely separate generations with different body structures and electrical architectures, so the brake light switch from an F32 is very unlikely to be a direct fit for a G22. These two generations should be treated as non-interchangeable for this part, and you should source a switch from a G22 donor car. Always confirm with the breaker using your full registration to be sure.

No — trim level does not affect brake light switch fitment on the 4 Series; the switch operates the same braking system regardless of whether the car is a Sport, M Sport, SE, or xLine. The switch is mounted at the brake pedal assembly, which does not change between trim grades. Simply match the generation (F32 or G22) and confirm with the breaker against your registration.

For a brake light switch specifically, engine size does not affect fitment — the switch sits at the brake pedal and signals that the brakes are being applied, regardless of whether you have a four-cylinder or six-cylinder engine. This is one part where you only need to match the generation of your car rather than worrying about drivetrain variants. Confirm the generation with your breaker using your registration and you should be in good shape.

No — the brake light switch is fitted at the brake pedal and is not influenced by whether the car is rear-wheel drive or xDrive four-wheel drive; both layouts use the same pedal-box area and the same switch. You do not need to specify drivetrain when sourcing this part, just the generation. Confirm with the breaker against your registration as a final check.

A 2016 car sits in the pre-facelift F32 period, while a 2018 car is post-facelift (the F32 facelift arrived in 2017), so they span a generation refresh boundary. The brake light switch may well be the same unit across that boundary, but because minor component changes can accompany a facelift, it is worth asking the breaker to check both registrations before confirming the swap. Do not assume they are identical without that check.