See also:

Deleting all stored programs
Press the two outer memory buttons for approx. 20 seconds until the LED flashes rapidly. All stored programs are deleted. The programs cannot be deleted individually ...

General information
The navigation system can determine the precise position of the vehicle, with the aid of satellites and vehicle sensors, and can reliably guide you to every entered destination. Navigation data ...

Malfunctions involving individual CDs/ DVDs
If malfunctions occur only with particular CDs/ DVDs, this can be due to one of the following causes. Copied or self-recorded CDs/DVDs ▷ Possible reasons for malfunctions with home-recor ...