See also:

Function restrictions
For safety reasons, some COMAND functions are restricted or unavailable while the vehicle is in motion. You will notice this, for example, because you will either not be able to select certain ...

Switching COMAND on/off
Press the function button on the center console. If you switch off COMAND, playback of the current audio or video source will also be switched off. You cannot switch off COMAND while mak ...

MB Info call button
Open the stowage compartment under the armrest. Press and hold MB Info call button 1 for more than two seconds. This initiates a call to the Mercedes-Benz Customer Assistance Center. The i ...