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:
Treble, bass, balance, and fader
▷ "Treble": treble adjustment.
▷ "Bass": depth adjustment.
▷ "Balance": left/right volume distribution.
▷ "Fader": front/rear volume ...
Following the initial pairing
The mobile phone is detected/connected in
the vehicle within a short period of time
when the engine is running or the ignition is
switched on.
The phone book entries of the telephone
...
Shoulder support
Also supports the back in the shoulder area:
Results in a relaxed seating position.
Reduces strain on the shoulder muscles.
...
