Used BMW 4 Series Coil Spring

Yes, the BMW 4 Series uses coil springs as part of its suspension setup on both the front and rear axles across all variants, including the F32 coupe, F33 convertible, and F36 Gran Coupe (2013–2020) as well as the G22/G23/G26 generation (2020 onwards). This is consistent with BMW's standard multi-link rear and MacPherson strut or double-wishbone front suspension arrangements used across the range. All engine variants and drive configurations carry coil springs, so you are looking for a genuine part that exists on this model.

Both a 2015 and a 2018 4 Series fall within the F32/F33/F36 first generation (2013–2020), so you are within the same platform and the springs are more likely to be compatible than if you were crossing into the G22 second generation. However, engine size can influence spring rates, so a spring from a 428i or 435i donor may not be the same specification as one from a 420d, for example. Confirm the engine variant with the breaker against your registration before purchasing.

The F32-generation 4 Series received a facelift in 2017, but this was largely cosmetic and did not involve a change to the underlying platform or suspension architecture. Springs from a pre-facelift car (2013–2017) should correspond to the same donor-side equivalent on a post-facelift car (2017–2020), provided the engine size and axle position match. That said, whether a specific spring crosses the facelift boundary without issue is something to confirm with the breaker against both registrations to be certain.

Trim level alone does not determine which coil spring your car needs, so an SE badge versus an M Sport badge is not the deciding factor in the same way that engine size or axle position is. That said, BMW 4 Series M Sport models may have been fitted with different spring or damper rates as part of a sports suspension package, and this is a variant we would route to the breaker rather than state as fact. Give the breaker your full registration so they can check what suspension specification your car left the factory with and match accordingly.

Yes, this matters significantly — front and rear springs are different parts and are not interchangeable with each other. For rear springs on the 4 Series, NS (nearside, passenger side) and OS (offside, driver side) should also be specified when requesting a quote, as left and right rear springs can differ. Always tell the breaker which corner you need so they can pull the correct part from the donor vehicle.

The F32 4 Series shares its platform with the F30 3 Series saloon (2012–2019), and some suspension components do cross over between the two, but coil springs are tuned to the weight and configuration of each specific body style. A Gran Coupe or convertible body will have different loading characteristics to a 3 Series saloon or estate, which can influence spring specification. Ask the breaker to check both registrations rather than assuming a 3 Series spring is a direct swap.