See also:

Priority options
The driver has priority The source selected via iDrive in the front is output on the vehicle loudspeakers and can be selected but not operated from the rear. Other audio or video sources ...

Activating HDC
Press the button; the LED above the button lights up. ...

Selecting the sorting order of the names
Names can be displayed in a different order. 1. "My contacts" 2. Open "Options". 3. "Display: last, first name" or "Display: first, last name" ...