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:
Functional readiness of the airbag
system
When the ignition is switch on,
the warning
lamp in the instrument cluster lights
up briefly and thereby indicates the operational
readiness of the entire airbag system
and the belt tension ...
Number of safety belts
Your vehicle has been fitted with five safety belts
for the safety of you and your passengers. However,
they can only offer protection when adjusted
correctly. ...
Thigh support
Pull the lever at the front of the seat and adjust
the thigh support. ...
