Lumbar support
The curvature of the seat backrest can be adjusted in such a way that it supports the lumbar region of the spine. The lower back and the spine are supported for upright posture.

- Press the front/rear section of the switch. The curvature is increased/decreased.
- Press the upper/lower section of the switch. The curvature is shifted up/down.
See also:
Short commands of the voice activation
system
Vehicle equipment
All standard, country-specific and optional
equipment that is offered in the model series is
described in this chapter. Therefore, equipment
is also described that is not avai ...
Run-flat tires
Label
RSC label on the tire sidewall.
The wheels are composed of special rims and
tires that are self-supporting, to a limited degree.
The support of the sidewall allows the tire to remain
...
General information
Do not adjust the seat while
driving
Do not adjust the driver's seat while driving,
or the seat could respond with unexpected
movement and the ensuing loss of vehicle control
could lead to a ...
