See also:

Deleting all stored programs
Press both outer memory buttons 1 for approx. 20 seconds until the LED flashes rapidly. All stored programs are deleted. The programs cannot be deleted individually. ...

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. ...

The concept
The DTC system is a version of the DSC in which forward momentum is optimized. The system ensures maximum forward momentum on special road conditions, e.g., unplowed snowy roads, but driving st ...