Cheap BMW i4 Airbag Control Module

Yes, the BMW i4 is fitted with an airbag control module (also called the SRS control unit) as standard across all variants — it manages the deployment of airbags and works alongside the pretensioner seat belt system. The i4 is an all-electric model, but being electric makes no difference here; airbag systems are independent of drivetrain type and are fitted to all versions. If you're sourcing a used unit, always confirm compatibility with the breaker against your exact registration.

The BMW i4 launched in 2021 and is currently in its first generation, so a 2022 and a 2024 unit are both from that same generation — however, BMW introduced a mid-cycle update for the i4 in 2024 which brought interior revisions, and whether the airbag module crosses that boundary without issue is something you should confirm with the breaker against your registration rather than assume. Generation alone is a reasonable starting point, but SRS system compatibility is a safety-critical detail that needs verifying. Never fit a used airbag control module without professional installation.

Trim level can matter for the airbag control module on the i4 because higher trims such as the M50 may feature different seat configurations or additional airbag zones compared to lower specifications like the eDrive40, and the control module must be matched to the specific SRS system fitted to your car. Always confirm the exact module compatibility with the breaker using your registration plate, as differences in seat style or optional equipment between trims can affect which unit is correct. Professional fitting by a qualified technician is strongly recommended given the safety-critical nature of this component.

Airbag control modules are safety-critical components and we strongly recommend having one fitted and coded by a qualified technician — incorrect installation or coding can prevent airbags from deploying in a collision, which could be life-threatening. The unit will also typically need to be programmed to the vehicle using BMW-compatible diagnostic equipment. This is not a DIY job for the roadside or a general mechanic without the right tools.

An airbag control module from a car where the airbags deployed is classed as a single-use item and must not be reused — if the airbags fired, the module will be in a fault or locked state and is not safe to refit. A good breaker should only be supplying modules from vehicles where the airbags did not deploy, so it is worth asking them to confirm this before purchasing. Always have the unit checked and coded by a professional after fitting, regardless of the module's history.

The airbag control module itself is a single central unit and is not specific to the nearside (NS) or offside (OS) of the vehicle — it is not a sided part in the way that, for example, a door mirror or seat belt pretensioner would be. However, it must be matched to your car's exact SRS system configuration, so confirm full compatibility with the breaker against your registration before ordering. Professional fitting and coding is essential for any airbag system component.