Mercedes-Benz X-Class Body Control Module Replacement Parts

The Mercedes-Benz X-Class does not have a traditional Body Control Module (BCM) in the way many European vehicles do. The X-Class is built on the Nissan Navara NP300 platform, and like that truck, its body electrical functions are distributed across several separate control units rather than consolidated into a single BCM. If you're chasing an electrical fault, the module you actually need is more likely a specific unit such as the Body Electronics Module, a door control unit, or another dedicated ECU — a Mercedes-Benz specialist or an auto-electrician who can read your vehicle's fault codes will be able to pinpoint the correct part.

Because the X-Class shares its electrical architecture with the Nissan Navara NP300, there is no single BCM to replace; instead, individual modules handle lighting, locking, windows, and other body functions separately. Depending on your fault, you may need a specific control unit — for example, a SAM (Signal Acquisition and Actuation Module) unit, a door control module, or a trailer module — so it's worth having the car scanned with Mercedes-compatible diagnostics first to get the exact module part number. Once you have that number, you can quote it to a Mercedes or Navara breaker to find a matching used unit.

Because the X-Class is based on the Navara NP300 platform, some electrical modules are shared or closely related, which can make Navara-sourced parts a realistic avenue — but Mercedes and Nissan units are not always identical, as Mercedes sometimes uses different software calibrations or connectors for X-Class-specific features. You should confirm with the breaker whether the exact part number on the donor vehicle matches yours, and bear in mind that any replacement module may require coding to your vehicle's VIN by a Mercedes technician. This is a question worth putting directly to the breaker alongside your registration number.

Trim level can affect which features your X-Class has — for example, Power models may have additional off-road electronics or a more complex air suspension setup — meaning the modules fitted can vary by specification rather than trim name alone. Because functions are distributed across multiple units rather than a single BCM, the safest way to match a used module is by part number from your existing unit or by your vehicle's VIN, not by trim name alone. Always confirm with the breaker against your registration to ensure the donor vehicle's spec matches yours.

The Mercedes-Benz X-Class was produced from 2017 to 2020, and there were no major mid-life platform changes that fundamentally altered the body electrical architecture across that period. However, because specific module part numbers can be updated mid-production and any replacement will likely need to be coded to your vehicle, a year difference is less of a fitment barrier and more of a software compatibility question. Confirm the exact part number on the donor vehicle against yours with the breaker, and factor in the cost of professional coding before committing to a purchase.