See also:

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

Adjusting
The following settings are available: "Rear displays" "Language/Units": language can be set globally for all screens. "Tone" ...

Preparation
1. Check whether the battery of the other vehicle has a voltage of 12 volts. This information can be found on the battery. 2. Switch off the engine of the assisting vehicle. 3. Switch off any el ...