Cheap Mercedes-Benz X-Class Airbag Control Module

Yes, all variants of the Mercedes-Benz X-Class (2017–2020) were fitted with an airbag control module (also called the SRS control unit) as standard, regardless of engine or drivetrain choice. The module manages the deployment of airbags and pretensioner seat belts throughout the cabin. Because the X-Class had only one generation with no significant SRS architecture change across its short production run, any X-Class from 2017 to 2020 is your starting point when searching for a used unit.

The X-Class ran as a single generation from 2017 to 2020 with no major facelift that is known to have changed the SRS system architecture, so a module from a 2017 car and one from a 2019 car come from the same generation. That said, airbag module compatibility can depend on the specific SRS calibration fitted to your individual vehicle, so you should confirm the exact part number against your registration with the breaker before purchasing. As a safety-critical component, professional fitting and system reset by a qualified technician is strongly recommended.

The X-Class was offered in Progressive, Stylish, and Power trim levels in the UK, and while interior specification varied between trims — including seat style and some equipment — the airbag control module itself is not expected to differ on trim grounds alone. However, because airbag module compatibility with the specific SRS system fitted to your car is a safety-critical detail, you should confirm the part number against your registration with the breaker rather than assuming trim-for-trim interchangeability. Never reuse a module that has previously been deployed, as airbag control modules are effectively single-use once the system has triggered.

Airbag control modules are safety-critical components — an incorrectly fitted or uncoded unit could prevent airbags from deploying in a collision, or cause unintended deployment, both of which are extremely dangerous. Professional fitting by a qualified technician with the appropriate diagnostic equipment to recode and reset the SRS system is strongly recommended. A used module from a breaker is a legitimate and cost-effective option, but the fitting and commissioning must be carried out properly.

The engine or drivetrain layout — whether 4WD or 2WD, or which diesel engine was fitted — is not expected to affect airbag control module fitment, as this is an interior safety system matched by vehicle generation rather than drivetrain. All X-Class models ran the same basic bodyshell and cabin across the 2017–2020 production run regardless of drivetrain. You should still confirm the exact part number against your registration with the breaker, as SRS system variants can exist independently of drivetrain choice.

Ask the breaker to confirm the part number against your vehicle's registration to ensure the module matches your specific SRS system configuration, as this is something that cannot be safely assumed. You should also confirm the module has not previously been deployed — a triggered module is single-use and cannot be refurbished for safe reuse. Finally, make sure you budget for professional fitting and SRS system reset, as this is not a part that should be self-fitted.