Used BMW 3 Series Door

No — the E46 (1998–2006) and E90 (2005–2012) are completely different generations with different body structures, so their doors are not interchangeable. Always match the generation: E46 to E46, E90 to E90. A breaker will confirm the exact generation from your registration.

The E90 ran from 2005 to 2012, with a facelift in 2008 — both sit within the same generation and the door aperture is the same, so a pre-facelift door will generally fit a post-facelift car. However, minor trim or moulding details can differ across that 2008 boundary, so confirm with the breaker against your registration before buying.

Yes, this is important — the front doors on a 2-door (coupe) 3 Series are longer than those on the 4-door (saloon) or 5-door (touring/estate), and they will not swap between body styles. Always tell the breaker your exact body style, and confirm NS (nearside, passenger side) or OS (offside, driver side) so they pull the correct door.

Trim level — whether SE, Sport, M Sport, or M3 — does not affect whether the door frame itself fits, as the aperture is the same across the range within a generation. The difference you may notice is that M Sport or other trim variants can have different exterior mouldings, body-coloured strips, or door mirror styles, so the door may not look identical without some adjustment. Colour is never a fitment concern as doors can be resprayed, but confirm any mirror feature details (such as electric folding or indicator repeaters) directly with the breaker.

No — NS (nearside, passenger/left) and OS (offside, driver/right) doors are handed and cannot be swapped. Always specify the correct side when getting a quote, using NS for the passenger side and OS for the driver's side, which is the standard convention UK breakers will recognise.

The E90 saloon and E91 Touring share the same generation (2005–2012) but have different rear door apertures, so rear doors are not interchangeable between those two body styles. Front doors are more likely to be shared, but this is not guaranteed, so check with the breaker quoting against both your registration and the donor vehicle's body style before confirming.