Used BMW X4 Curtain Airbag

Yes, curtain airbags are a genuine fitment on the BMW X4 across all generations — they run along the roofline on each side to protect front and rear occupants in a side-impact or rollover. The X4 has always been a five-door SUV coupé, so both nearside and offside curtain airbags are present on every variant. When searching for a used unit, make sure you specify whether you need the nearside (NS, left) or offside (OS, right) airbag.

The F26 is the first-generation X4, produced from 2014 to 2018, while the G02 is the second generation, launched in 2018 and still running. These are entirely different body shells, so curtain airbags from an F26 will not transfer to a G02 — the mounting points, roof structure, and SRS systems are generation-specific. Stick to the correct generation when sourcing from a breaker.

The F26 X4 did not receive a significant structural mid-life facelift in the way some models do, so curtain airbags within the F26 generation (2014–2018) are generally considered the same body generation. That said, you should confirm with the breaker that the specific part number matches your registration, as minor running changes can occur across a production run. Always route SRS airbag module compatibility through the breaker rather than assuming on year alone.

Curtain airbag fitment is determined by the body structure and generation rather than trim level, so an M Sport unit and an xLine unit from the same generation X4 should be the same part. Trim level does influence seat style and interior finish, but the roofline-mounted curtain airbag itself is not a trim-specific component on the X4. Confirm the part number against your registration with the breaker as a final check, especially regarding compatibility with your specific SRS control module.

Engine type and drivetrain make no difference to curtain airbag fitment on the X4 — the airbag is mounted in the roof structure, which is the same regardless of whether the car is a 20d, 30d, 20i, or M40i. Focus your search on the generation (F26 or G02) and the side you need (NS or OS), and you can safely disregard what engine the donor car had.

Curtain airbags are safety-critical components and professional fitting by a qualified technician is strongly recommended — incorrect installation can result in the airbag failing to deploy or deploying unexpectedly, both of which are dangerous. Airbags are single-use items, so always confirm with the breaker that the unit has never been deployed and that it is compatible with your specific SRS system and registration before purchasing. A reprogramming step is often required after fitting, which is another reason to use a professional installer.