Mercedes-benz U11a600 -

If the code persists, check the radar sensors for any damage or misalignment. Step 4: Check Battery Voltage

: "Communication with the 'radar sensor system' control unit has a malfunction". mercedes-benz u11a600

In rare cases, the radar sensor itself or its mounting bracket may be damaged or out of alignment, often after a minor front-end collision. If the code persists, check the radar sensors

Temporarily, yes. But the code will return once the ECU runs its monitoring cycle (usually a few drive cycles). Disconnecting the battery is not a fix. If the code persists