See also:

Snap-in adapter
Installation locationIn the center armrest. Inserting snap-in adapter 1.  Press the button and remove the cover. 2.  Insert the snap-in adapter at the front, arrow 1, and press downward, ...

Following part replacement
The same breaking in procedures should be observed if any of the components mentioned above have to be renewed in the course of the vehicle's operating life. ...

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. ...