See also:

Adjusting the angle of the head restraints
WARNING   Vehicles with Rear Seat Entertainment System: When adjusting the head restraint, make sure your fingers do not become caught between the head restraint cushion and the monitor ...

Deactivating/activating ESP® (AMG vehicles)
Activating/deactivating SPORT handling mode WARNING The SPORT handling mode should not be switched on during normal driving. Switching on the SPORT handling mode will result in the followin ...

Restoring the factory settings
Press the and buttons simultaneously for approximately six seconds until the battery check lamp flashes twice. ...