Second Hand BMW 4 Series Window Regulator

The BMW 4 Series has run across two generations: the F32/F33/F36 (first generation, 2013–2020) and the G22/G23/G26 (second generation, 2020–present). Parts from within the same generation are more likely to interchange, but crossing the F-series to G-series boundary is a different structure entirely, so always quote your generation to the breaker. Never assume a regulator from the newer G-series will drop into an older F-series car.

Both 2016 and 2019 fall within the first-generation F-series (2013–2020), so you're in the same generation, which is a good starting point. However, you must also confirm the body style — the F32 is the two-door coupé, the F33 the convertible, and the F36 the four-door Gran Coupé — and match the side (NS for nearside/passenger, OS for offside/driver), as these are all different door assemblies. Confirm the exact codes with the breaker against your registration before ordering.

Yes, it matters significantly — the F32 coupé, F33 convertible, and F36 Gran Coupé all have different door structures, so their window regulators are not interchangeable with each other. Always tell the breaker exactly which body style you have, along with the side (NS or OS), and confirm against your registration. Mixing body styles is one of the most common fitment mistakes on the 4 Series.

No, trim level does not affect window regulator fitment on the BMW 4 Series — the door frame and regulator mechanism are the same across Sport, M Sport, and other mainstream trim grades within the same body style and generation. You may find minor cosmetic differences such as door card trim or speaker grille finish, but the regulator itself is a fitment item, not a cosmetic one. What you do need to match is the generation, body style, and side (NS or OS).

No — the F-series (2013–2020) and G-series (2020–present) are completely different platforms with different door structures, so a regulator from the F32 will not fit the G22. These are distinct generations and the parts are not interchangeable across that boundary. Always confirm your exact generation and body style with the breaker, quoting your registration.

Yes, this is critical — the NS (nearside, passenger side, left) and OS (offside, driver side, right) regulators are mirrored components and are not interchangeable. In UK convention, the driver sits on the right (OS) and the passenger on the left (NS), so be precise when contacting a breaker. Getting the side wrong means the regulator simply will not fit, regardless of generation or body style match.