Mercedes-Benz GLB Airbag Control Module Replacement Parts

The GLB has been produced as a single generation (X247) from its 2019 launch, with a facelift arriving around 2023, so a pre-facelift 2020 module and a post-facelift 2023 module sit on either side of that boundary. While the underlying platform is shared, airbag control modules are safety-critical components and compatibility across a facelift can depend on changes to the SRS system; confirm with the breaker that the specific part number matches your registration before purchasing. Never guarantee fitment across a facelift boundary for a safety-critical part like this.

No — the airbag control module is an interior safety component and engine type has no bearing on which unit fits your GLB. What matters is the generation (X247) and whether the vehicle has had any SRS system revisions tied to the facelift; confirm the part number against your registration with the breaker to be sure.

The GLB was sold in the UK in trims including SE, Sport, AMG Line, and AMG Line Premium, and the airbag control module itself is not a trim-specific part — trim level does not change which module is fitted. That said, you should still confirm compatibility with the breaker against your specific registration, as SRS system variants can differ in ways not always visible from trim alone.

Yes — like all airbag control modules, the unit in the GLB is classed as a single-use safety-critical component once the airbags have deployed; a module from a car where the airbags fired will need professional assessment and is unlikely to be reusable. When sourcing a used module from a breaker, confirm it comes from a vehicle where the airbags did not deploy. Fitting must be carried out by a qualified technician, as incorrect installation of SRS components is dangerous.

Airbag control module compatibility with a specific vehicle's SRS system is not something that can be confirmed by generation or trim alone — you must confirm this directly with the breaker by providing your full registration, so they can match the part number to your car. The SRS system in the GLB integrates with seat belt pretensioners and multiple airbag circuits, and a mismatch can mean the system does not function correctly. Always have the replacement unit coded to your vehicle by a Mercedes-trained technician after fitting.

The GLB X247 received a facelift around 2023, and while the model generation is the same, changes to the SRS system across that facelift mean you cannot assume a pre-facelift module will be a straight swap into a post-facelift car. Name the boundary and route the crossing to the breaker: confirm with the breaker that the part number from the donor vehicle matches your post-facelift registration before buying. This is a safety-critical part, so professional fitting and system coding are essential regardless of which unit you source.