See also:

System self-test
If an adult occupant is properly sitting on the passenger seat and the OCS classifies the occupant as an adult, the indicator lamp illuminates and goes out again after approximately 6 seconds ...

Switching the button lighting on/off
Press button 2 on the remote control. Depending on the previous status, the button lighting is switched on or off. If you do not use the remote control for about 15 seconds, the button light ...

Text reader settings
Setting the text reader speed Select Vehicle by turning the COMAND controller and press to confirm. Select System and press to confirm. Select Text Reader and press to confirm. ...