Cheap BMW 4 Series Sill

No – the F32 (first-generation 4 Series, 2013–2020) and the G22 (second-generation 4 Series, from 2021) are built on completely different platforms with different body structures, so the sills are not interchangeable. Always match the sill to the correct generation of your car. Confirm the exact part against your registration with the breaker before ordering.

Yes, body style is the most important fitment factor for sills – the Coupe (2-door), Convertible (2-door, no fixed roof), and Gran Coupe (4-door) all have different sill pressings because the roofline, door apertures, and structural requirements differ between them. You must match the sill to the correct body style, not just the generation. Tell the breaker your body style as well as your registration when requesting a quote.

No – engine choice and trim level (whether that's Sport, M Sport, xLine, Luxury, or M Sport Plus) make no difference to sill fitment, as the underlying bodyshell pressing is the same across those variants. Do be aware that M Sport and other trims may have different sill cover trims or side skirts fitted over the structural sill, so cosmetic finishing pieces may look different even when the steel sill itself is identical. If you need a sill cover or skirt rather than the structural sill, mention that to the breaker.

The F32 ran from 2013 to 2020 with a facelift in 2017 that was primarily focused on lighting and interior updates rather than major bodywork changes. The structural sill pressings are generally understood to be the same across the F32 generation, but mid-generation pressing changes are not always publicly documented, so confirm with the breaker that the part from the donor car matches your registration before purchasing.

The G22 4 Series and G42 M4 Coupe share the same platform and broadly the same body generation, but whether the sill panels are pressing-for-pressing identical or differ between these closely related variants is not something that can be stated with certainty here. Route this question directly to the breaker, giving them both your registration and the donor vehicle's registration so they can verify compatibility.

No – despite sharing platforms (the F32 4 Series shares its base with the F30 3 Series, and the G22 shares its base with the G20 3 Series), the 4 Series has a wider, lower body with different proportions, so the sill pressings are specific to the 4 Series body and are not shared with the saloon or estate 3 Series. Always source a sill from a 4 Series donor of the correct generation and body style. Confirm with the breaker using your registration.