Mercedes-Benz Comand Operator's Manual page 209

System settings
System settings
Adjusting the display brightness
In the Display menu, press the
soft key.
Bright.
Press h or H to adjust the
brightness.
or
Press the soft key longer than
Bright.
2 seconds.
The display brightness changes
gradually.
200
Release the soft key.
Bright.
Press the soft key.
Back
or
Press E.
The brightness setting is applied.
Setting the display dimming
characteristics
In the Display menu, press the
soft key.
Press G or g to select an entry.
Day Mode
The display is continuously set to
daylight design.
Night Mode
The display is continuously set to night-
time design.
Automatic
The display changes depending on the
ambient light sensor in the vehicle.
Mode
Press E.
The setting is applied. The System
settings menu will appear.