Second Hand BMW 4 Series Wheel Arch Liner

The BMW 4 Series runs in two distinct generations: the F32/F33/F36 (2013–2020) and the G22/G23/G26 (2021 onwards), and these are entirely different platforms with no shared body panels, so the arch liners do not interchange between them. Make sure any used liner you're quoted for matches your specific generation. Confirm the exact part with the breaker against your registration before purchasing.

Yes, body style is the first thing to get right — the 4 Series was offered as a two-door Coupé, a Cabriolet (convertible), and a four-door Gran Coupé, and the rear and side arch liner shapes differ between these body styles even within the same generation. Always tell the breaker which body style you have, not just the generation or year. A liner from a Coupé will not necessarily fit a Gran Coupé, even from the same model year.

Trim level does not affect the fundamental fitment of wheel arch liners on the 4 Series, as the underlying arch opening and liner shape are the same across SE, Sport, M Sport, and other trim grades within the same generation and body style. However, M Sport models may have a slightly wider or deeper front bumper valance, so visually the liner fit around the bumper edge could look slightly different — this is cosmetic rather than a structural fitment issue. A liner from any trim grade will fit the same body style and generation, but if you want an exact cosmetic match, mention your trim to the breaker.

Within the F32/F33/F36 generation (2013–2020) the front arch liners are generally consistent, as the front end did not change dramatically across the generation's life. That said, there were minor styling updates during this period, and pressing changes between build years can sometimes affect liner clips or edge profiles. Confirm with the breaker using both registration numbers to be sure before buying.

No — arch liners are handed, meaning the nearside (left, passenger side in the UK) and offside (right, driver side) are mirror images of each other and are not interchangeable. Always specify NS or OS clearly when contacting a breaker, along with whether you need front or rear, your generation, and your body style. Getting any of these details wrong will result in a part that simply won't fit.

The 4 Series shares its platform with the 3 Series of the same generation — for example, the F32 4 Series shares underpinnings with the F30 3 Series — but the body panels and arch liner shapes differ due to the different body styles involved. It is not safe to assume a 3 Series liner will swap straight across to a 4 Series without checking. Raise this specifically with the breaker, giving them both registration numbers, and let them confirm fitment before you commit.