See also:

Sound output
Switching on/off When the ignition is switched off: press ON/OFF button on the radio. Muting When the ignition is switched on or the engine is running: press the ON/OFF button on the radio. ...

What to do if...
Only a black screen is visible. Switch on the system. There are no options available on the screen. Switch over between the display screens. Radio stations or TV channels are grayed out ...

System limits
Personal judgment The system cannot serve as a substitute for the driver's personal judgment of the traffic situation. The system assists the driver and does not replace the human eye. The s ...