BMW 4 Series Airbag Control Module Replacement Parts

The F32/F33/F36 generation covers 2013 to 2020, so both years sit within the same generation, which is a positive starting point for compatibility. However, BMW updated the SRS system across the production run, and whether the module from a 2014 car is compatible with a 2017 car's specific SRS configuration is something you should confirm with the breaker against your registration before buying. Airbag control modules are safety-critical single-use components, so professional fitting is strongly recommended.

Yes, every BMW 4 Series variant — coupe, convertible, and Gran Coupe — has its own airbag control module (also called the SRS control unit) fitted as standard, regardless of engine or drivetrain. While the 4 Series shares its F3x platform with the 3 Series, the modules are not simply interchangeable between models, and you should source a unit specifically listed for the 4 Series. Confirm compatibility with the breaker using your registration to ensure the module matches your car's exact SRS system.

Trim level can matter for the 4 Series because seat type and specification vary between trims such as Sport, M Sport, and Luxury, and the SRS system is calibrated to work with the specific seats and sensors in the car. That said, whether a module from one trim level is compatible with another is not straightforward to confirm without checking, so you should tell the breaker both your trim and your registration so they can verify. Airbag modules are safety-critical, and fitting an incorrectly matched unit could affect how the system responds in a collision, so professional installation is essential.

Door count is worth flagging when sourcing this part, as the Gran Coupe (F36) can have different side-curtain airbag configurations compared with the two-door coupe (F32) or convertible (F33). You should make clear to the breaker that you have the Gran Coupe body style and confirm against your registration that the module they are supplying matches your specific variant. Because this is a safety-critical component, always have it fitted by a qualified technician.

The F32-generation BMW 4 Series received a facelift in 2017, which brought updates that may have included changes to the SRS system and module software. Whether a module from a pre-2017 car will work correctly in a post-2017 facelift car is something you must confirm with the breaker against your registration, as this is exactly the kind of boundary where compatibility cannot be assumed. Given that this is a safety-critical part, do not fit a module without professional verification and installation.

No — engine choice and gearbox type do not affect which airbag control module you need, so you do not need to match these details when sourcing the part. The key details to provide to the breaker are the generation, body style, trim level, and your full registration so they can cross-reference the exact SRS system fitted to your car. As with all airbag components, this is a safety-critical part that should be fitted by a qualified professional.