Adjusting the height: electrical
The head restraints on the left and right rear passenger seats extend automatically whenever a passenger in the rear seat fastens his or her safety belt.

In addition, the height of the head restraint can be adjusted electrically.
Extending the head restraint
To prevent possible personal injury and property damage, always ensure that the area above the head restraints is clear and unobstructed before extending them upward.
The height adjustment of the head restraint is deactivated when the safety switch for the rear windows, has been pressed.
See also:
Opening/closing the glass sunroof
When the sliding visor is open, proceed as described
under Sliding visor. ...
Lane information
On multi-lane roads, the recommended lanes
are marked in the arrow view by a triangle.
▷ Solid triangle: best lane.
▷ Empty triangle: possible lane. However, another
lane change may ...
Enabling operation in the rear
Only possible via the iDrive in the front.
1. "Settings"
2. "Allow rear control"
3. Select the desired priority.
...
