See also:

Restoring the factory settings
► Press the buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. ...

Limited Warranty
Follow the instructions in this manual about the proper operation of your vehicle as well as about possible vehicle damage. Damage to your vehicle that arises from culpable contraventions agai ...

Roadside Assistance button
  Press and hold Roadside Assistance button 1 for more than two seconds. This initiates a call to the Mercedes-Benz Customer Assistance Center. The indicator lamp in Roadside Assistance but ...