See also:

Buttons at a glance
1 System on/off, interrupt 2 Resume speed 3 Store speed* 4 Reduce distance 5 Store, maintain/change speed 6 Increase distance ...

Enabling operation in the rear
Only possible via the iDrive in the front. 1. "Settings" 2. "Allow rear control" 3. Select the desired priority. ...

On/off and tone
The following audio and video sources share the same control elements and adjustments: > Radio > CD/DVD player > CD changer > Video > External devices, e.g. MP3 player ...