See also:

Operating the on-board computer
The on-board computer is activated as soon as you turn the SmartKey to position 1 in the ignition lock. You can control the multifunction display and the settings in the on-board computer using ...

De-registering (de-authorizing) a mobile phone
Mercedes-Benz USA, LLC recommends deauthorizating in both COMAND and the mobile phone. Subsequent authorization may otherwise fail. To call up the telephone menu: press the function button ...

Warning and indicator lamps
High-beam headlamps ESP® OFF Low-beam headlamps Turn signal ESP® Turn signal ear fog lamp Tire pressure monitor (USA only) SRS ABS Seat belt Front fog lamps Coolant Brak ...