Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Output Of Crash Telegram
In the event of a crash involving triggering of the restraint systems, the MRS 5 control unit sends a crash telegram to the users in the bus system network.
As a result, the respective control units perform the following functions corresponding to the crash severity:
| Control Unit | Function |
|---|---|
| Fuel Pump (EKP) Control Module | Switch off fuel pump |
| DME Control Module | Switch Off Generator |
| Junction Box (JB) | Release central locking |
| Footwell Module (FRM) | Activate hazard lights |
| Footwell Module (FRM) | Activate interior lights |
| Telematics Control Unit (if equipped) | Activate Emergency CAll |
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.