Mercedes-Benz C-Class 2017 Operator's Manual page 106

Seats
104
Adjusting the 4-way lumbar support
Raises the backrest contour
:
Softens the backrest contour
;
Lowers the backrest contour
=
Hardens the backrest contour
?
You can adjust the contour of the front seat
backrests individually to provide optimum sup-
port for your back.
Adjusting the AMG Performance Seat
To adjust the contour of the seat and for
improved lateral support, you can individually
adjust the front seats.
Adjusting the side bolsters of the seat cush-
ion
To set narrower: press button :.
X
To set wider: press button ;.
X
To adjust the side bolsters of the seat back-
rest
To set narrower: press button =.
X
To set wider: press button ?.
X
Switching the seat heating on/off
Switching on/off
G
WARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited
ability to react to excessively high tempera-
tures may be affected or they may even suffer
burn-like injuries. There is a risk of injury.
Therefore, do not switch the seat heating on
repeatedly.
The three red indicator lamps in the button indi-
cate the heating level you have selected.
The system automatically switches down from
level 3 to level 2 after approximately eight
minutes.
The system automatically switches down from
level 2 to level 1 after approximately ten
minutes.
The system automatically switches off approx-
imately 20 minutes after it is set to level 1.
Turn the SmartKey to position 1 or 2 in the
X
ignition lock ( page 136).
Y
To switch on: press button : repeatedly
X
until the desired heating level is set.
To switch off: press button : repeatedly
X
until all the indicator lamps go out.
i
If the battery voltage is too low, the seat
heating may switch off.
i
If drive program E is selected, the power of
the seat heating is reduced.