See also:

Hiding a service message
  Press the or button on the steering wheel. ...

Cleaning the display
– Before cleaning the display, make sure that it is switched off and has cooled down. – Clean the display surface using a commercially-available microfiber cloth and TFT/LCD display cleaner. – ...

Roadside Assistance
The Mercedes-Benz Roadside Assistance Program offers technical help in the event of a breakdown. Calls to the toll-free Roadside Assistance Hotline are answered by our agents 24 hours a day, 3 ...