See also:

Starting procedure with the SmartKey
To start the engine using the SmartKey instead of KEYLESS-GO, pull the Start/Stop button out of the ignition lock. Turn the SmartKey to position 3 in the ignition lock and release it as so ...

Displaying navigation instructions
In the Navi menu, the multifunction display shows navigation instructions. For more information, see the separate operating instructions. – Switch on COMAND (see the separate operating instru ...

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 ...