See also:

Reference
This chapter contains technical data, short commands for the voice activation system, and an index that will quickly take you to the information you need. ...

Switching off
Press the button repeatedly until the LEDs go out. ...

iDrive in the rear
Operation is the same as for the iDrive in the front. To adjust the volume: turn, arrows 1. To activate the controller and switch between the screens: press the buttons, arrows 2. ...