See also:

Radar sensor
Position Radar sensor Dirty or covered sensor A dirty or covered sensor may hinder the detection of vehicles. If necessary, clean the radar sensor. Remove layers of snow and ice carefull ...

Malfunction
A message is displayed in the instrument cluster. HDC is not available, e.g., due to elevated brake temperatures. ...

Sound output via speakers
In addition to the headphones, you can also play the sound via the vehicle speakers. 1. "CD/Multimedia" 2. "External devices" 3. "AUX rear" 4. "Volume" 5 ...