26/06/2026
At Mercedes, the central control unit located directly behind the steering wheel (N80) is referred to as the Jacket Tube Module(MRM). It connects all the controls on the steering column to the vehicle’s data bus (CAN bus).
If you are experiencing problems operating the windshield wipers or, in the case of automatic vehicles, the gear selector lever, we can offer to repair this control unit.
If you encounter different errors or error patterns than our listed
standard errors, please contact our hotline before sending in your unit.
Our experts are available on weekdays from 8:00 AM to 4:30 PM at +44.203.6083541.
Click here to go directly to the overview on our homepage:
https://ecu.eu/t/-7922
Your ecu.de Team