See also:

Incoming call
Rejecting or accepting a call When there is an incoming call, you see a corresponding window in the display. To reject: select Reject by turning the COMAND controller and press to confir ...

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

"Electronic crumple zone": even more safety in the M-Class
As ever, the best accident is one which does not happen at all. The safety engineers at the Mercedes Technology Center are working intensively on this rather simple sounding statement, which in pr ...