Second Hand BMW i4 Seat

The BMW i4 is a single-generation model that launched in the UK in 2021 and remains in production, so all current cars share the same basic generation; BMW introduced a mid-cycle update for the 2024 model year, which brought exterior and interior revisions that may affect trim-level seat styles. When sourcing a used seat, always confirm the exact model year of both the donor and your car with the breaker against your registration, particularly if one car is pre-2024 and the other is post-2024.

The 2024 update marks a notable refresh boundary for the i4, and while the underlying platform is shared, interior components including seat frames, fixings, and upholstery designs may have changed across that boundary. You should treat a 2022-to-2024 swap as uncertain and confirm compatibility with the breaker using both registrations before ordering. Never assume a pre-refresh seat will drop straight into a post-refresh car without verification.

Yes, trim level matters significantly for the i4: the entry eDrive40 and xDrive40 trims typically came with standard sport seats, while the M50 was fitted with M Sport seats that differ in side-bolster design, upholstery, and potentially the seat frame itself, so the seats are not directly interchangeable without cosmetic differences at minimum. If you fit an M50 seat into a standard trim car or vice versa, expect visible differences in appearance and possibly in mounting or electrical connector layout for heating and adjustment motors. Always confirm the seat variant with the breaker against both registrations to get the closest match.

Yes, seats are side-specific — the driver's seat (OS, offside, right-hand side in a UK car) and the passenger's seat (NS, nearside, left-hand side) are not interchangeable due to differences in the seat frame, side-bolster airbag positioning, and adjustment mechanisms. Always tell the breaker clearly which side you need, and note that seat-mounted side airbags are safety-critical components — if the donor seat's airbag has been deployed, it cannot be reused and the seat should not be fitted. Professional fitting is strongly recommended for any seat containing an airbag or pretensioner belt mechanism.

Seat-mounted side airbags and pretensioner seatbelts are single-use safety devices — if they have been deployed in an accident, they must be replaced and the seat should not be purchased for reuse. Even on an undeployed used seat, compatibility of the airbag module with your car's specific SRS system and the exact pretensioner variant fitted are things you must confirm with the breaker against your registration rather than assume. We strongly recommend professional fitting by a qualified technician any time a seat containing these components is being installed.

The BMW i4 is available in the UK exclusively as a four-door Gran Coupé body style, so door count is not a variable you need to consider when sourcing a replacement seat for this model. The key factors remain the model year (particularly whether the car is pre- or post-2024 refresh), the trim level, and the side (NS or OS) — confirm all three with the breaker against your registration for the best chance of a correct fit.