The concept
The iDrive combines the functions of a multitude of switches. Thus, these functions can be operated from a central location.
See also:
In the center armrest in the rear
Storage is possible in a vertical or horizontal position
in the center armrest. ...
Multi-channel playback, surround
Choose between stereo and multi-channel playback,
surround.
Setting multi-channel playback,
surround
1. "CD/Multimedia", "Radio" or "Settings".
2. "Tone" ...