See also:

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 ...

Checking tire pressure manually
To determine and set the correct tire pressure, proceed as follows:   Remove the valve cap of the tire that is to be checked.   Press the tire pressure gauge securely onto the valve. ...

Activating/deactivating the rear view camera
– To activate: make sure that the SmartKey is in position 2 in the ignition lock. – Make sure that the "rear view camera" function is selected in COMAND (see the separate operating in ...