Automatic anti-glare mirrors
WARNING 
If incident light from headlamps is prevented
from striking the sensor in the rear-view
mirror, for instance, by luggage piled too high
in the vehicle, the mirror's automatic antiglare
function will not operate.
Incident light could then blind you. This may
distract you from the traffic conditions and,
as a result, you may cause an accident.
The rear-view mirror and the exterior mirror on the driver's side automatically go into antiglare mode if the ignition is switched on and incident light from headlamps strikes the sensor in the rear-view mirror.
The mirrors do not go into anti-glare mode if reverse gear is engaged or the interior lighting is switched on.
See also:
The windshield wipers are inoperative
The windshield wiper drive is malfunctioning.
Select another wiper speed on the
combination switch.
Have the windshield wipers checked at a
qualified specialist workshop. ...
Operating audio player or audio media
Audio data from various audio devices or
media can be played, depending on the
equipment installed in the vehicle.
Switch on the audio system or
COMAND
and select the audio device or medium ...
Windshield/headlamp cleaning system
WARNING
Washer solvent/antifreeze is highly flammable. Do not spill washer solvent/ antifreeze
on hot engine parts, because it may ignite and burn. You could be seriously burned.
Use MB Summe ...