Second Hand Mercedes-Benz A-Class Curtain Airbag

Yes, curtain airbags (also called side curtain or head airbags) were fitted to the Mercedes-Benz A-Class across multiple generations, typically deploying from the roofline to protect occupants' heads in a side impact. They are present on both 3-door and 5-door variants, though the exact number of airbag modules can vary by trim and body style. When sourcing a used unit, always confirm with the breaker that the part matches your specific vehicle using your registration.

No — the W169 (second generation, 2004–2012) and the W176 (third generation, 2012–2018) are entirely different platforms with different body structures and SRS systems, so parts are not interchangeable between them. You must source a curtain airbag from the correct generation to match your car. Always confirm compatibility with the breaker against your registration before purchasing.

The W176 A-Class was facelifted in 2015, and while the body structure remained broadly the same, interior and safety system components can vary between pre-facelift (2012–2015) and facelift (2015–2018) cars. Whether a curtain airbag from one crosses over to the other is something you should confirm with the breaker against your registration, as airbag module compatibility with the specific SRS system is not something we can guarantee. Do not assume pre-facelift and facelift units are a straight swap.

Trim level is less likely to affect the curtain airbag itself compared to parts like seat belts or side airbags, but door count (3-door versus 5-door) does matter, as the roofline length and deployment zone differ. Trims such as SE, Sport, and AMG Line shared the same basic body structure within a generation, so the curtain airbag is generally the same across those trims for the same body style. That said, confirm with the breaker against your registration, as individual vehicle specification can vary.

Yes, side matters: the nearside (NS, passenger side) and offside (OS, driver side) curtain airbags are separate units and are not interchangeable. Always specify which side you need when requesting a quote from a breaker. Getting the wrong side will mean the part cannot be fitted correctly.

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 in a crash, or deploying unexpectedly during fitting. Airbags are also single-use items, so a used unit must never have been previously deployed. A qualified garage or auto-electrician will also be able to check that the replacement unit is correctly recognised by your car's SRS system.