Used Mercedes-Benz GLA Curtain Airbag

The Mercedes-Benz GLA runs across two clear generations: the first-generation X156, produced from 2013 to 2019 (with a facelift in 2017), and the second-generation H247, launched in 2020 onwards. Curtain airbags are generation-specific, so a part from the X156 will not be a direct match for the H247 and vice versa. Always tell the breaker which generation you have and confirm fitment against your registration before buying.

Yes, curtain airbags (also called side curtain or window bag airbags) were fitted to the Mercedes-Benz GLA across both the first-generation X156 (2013–2019) and the second-generation H247 (2020–present) as standard safety equipment. They run along the roofline above the side windows to protect occupants in a side-impact or rollover. Because airbags are safety-critical and single-use after deployment, professional fitting by a qualified technician is strongly recommended.

For the GLA, the curtain airbag itself is not typically affected by trim level in the way that, say, seat upholstery or body kits are – it is a structural safety item matched primarily by generation rather than trim designation. Whether you have SE, Sport, AMG Line, or another trim, the curtain airbag should be the same unit for a given generation, provided the door count and side (nearside or offside) match. That said, you should always confirm the specific airbag module is compatible with your vehicle's SRS system by checking against your registration with the breaker, as this cannot be guaranteed from trim alone.

Yes, side matters: the nearside (NS) curtain airbag, which runs along the left-hand side of the cabin, is a different part to the offside (OS) unit on the right. When contacting a breaker, make sure you specify NS or OS clearly alongside your generation (X156 or H247) to avoid receiving the wrong part. Curtain airbags are single-use safety items, so getting the correct side and confirming compatibility with your SRS system before purchase is essential.

The first-generation GLA (X156) received a facelift in 2017, so vehicles registered in that year could be either the pre-facelift or the facelifted version depending on their exact build date. The facelift brought interior and exterior updates, and while the curtain airbag may be shared across pre- and post-facelift X156 models, this is a boundary where you should not assume compatibility. Ask the breaker to verify the part against your exact registration to make sure you receive the correct unit.

Curtain airbags are safety-critical components and should always be fitted by a qualified technician – this is not a DIY job. Incorrect installation can mean the airbag fails to deploy properly in an accident, or deploys unexpectedly, both of which carry serious risk of injury. A garage will also need to check and reset the SRS (airbag control) system after fitting, and they can confirm that the used unit is fully compatible with your specific vehicle before installation.