See also:

Avoiding a section of the route blocked by a traffic jam
This function blocks a section of the route ahead of you. You can set the length of the blocked route section. If possible, COMAND calculates a detour around the blocked section of the route. ...

Tachometer
The red band in the tachometer indicates the engine's overrevving range. Do not drive in the overrevving range, as this could damage the engine. The fuel supply is interrupted to protect the ...

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 ...