See also:

Resetting the tone settings
1. "CD/Multimedia", "Radio" or "Settings" 2. "Tone" 3. "Reset" ...

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 ...

Increasing or decreasing vehicle speed
Specify desired speed in the range from approx. 4 mph/6 km/h to approx. 15 mph/25 km/h using the rocker switch of the cruise control on the steering wheel. Vehicle speed can be changed by lightl ...