See also:

Display visibility
The visibility of the displays in the Head-up Display is influenced by: Certain sitting positions. Objects on the cover of the Head-up Display. Sunglasses with certain polarization filters. ...

Instrument lighting
Adjusting The parking lamps or low beams must be switched on to adjust the brightness. Adjust the brightness using the thumbwheel. ...

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