Saving a function
1. Highlight the function via the iDrive.
2. 
Press
the desired button for more
than 2 seconds.
See also:
Selection lists in theinstrument cluster
The concept
The following can be operated using the buttons
and the thumbwheel on the steering wheel and
the display in the instrument cluster:
► Current audio source.
► Redial on t ...
Issuing a warning
If the vehicle begins leaving the lane and a lane
marking has been detected, the steering wheel
begins vibrating.
If the turn signal is set before the lane is
changed, a warning is not issued.
...
Backrest width
Change the width of the backrest using the side
wings to adjust the lateral support.
To make it easier to enter and exit the vehicle,
the backrest width temporarily opens fully. ...