Cheap Mercedes-Benz CLA Airbag Control Module

The Mercedes-Benz CLA (C117) ran from 2013 to 2019, with a facelift arriving in 2016, so a 2014 module comes from the pre-facelift car and a 2016 module may be from either side of that boundary depending on build date. Generation is the key fitment factor here, and whether the SRS system changed across the 2016 facelift is something you should confirm with the breaker against your registration before buying. Never assume pre-facelift and post-facelift modules are interchangeable without that check.

The first-generation CLA (C117, 2013–2019) and the second-generation CLA (C118, 2019–present) are entirely different platforms, so their airbag control modules are not interchangeable. Always source a module from the same generation as your car, and confirm compatibility with the breaker against your exact registration to make sure the SRS system matches. Fitting an incorrect module to a safety-critical system like this is not worth the risk.

For the CLA, trim level is not typically the primary factor for airbag control module compatibility — generation and build specification matter more. That said, higher trims such as AMG Line may include additional airbag or sensor configurations compared to entry-level Sport or SE specs, so it is worth confirming with the breaker that the module from their donor car matches your car's SRS setup. Route this check through your registration number to be safe.

Yes, the airbag control module (also called the SRS ECU) is fitted to all variants of the Mercedes-Benz CLA as standard — it is present regardless of engine choice or trim level. It manages the deployment of airbags, seat belt pretensioners, and related safety systems across the whole range. Because this is a safety-critical component, professional fitting by a qualified technician is strongly recommended.

Used airbag control modules are available from breakers for the CLA, but this is a safety-critical, single-use-after-deployment part, so you must ensure the unit you are buying has never been triggered. Modules typically require programming to your vehicle's VIN, so factor in the cost of dealer or specialist coding when budgeting. Confirm with the breaker that the module is undeployed and compatible with your specific SRS system against your registration before purchasing.

The CLA was offered as a four-door coupe (C117/C118) and as a Shooting Brake estate (X117/X118), and while the core airbag control module may be shared, the overall SRS configuration can differ between body styles due to differences in sensor placement and curtain airbag setups. Always tell the breaker exactly which body style you have and confirm compatibility against your registration to avoid any mismatch in this safety-critical system.