Mercedes-Benz MY17 c-class Operator's Manual page 104

Seats
102
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 (
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 (
the power of the seat heating is reduced.
Switching the seat ventilation on/off
The three blue indicator lamps in the buttons
indicate the ventilation level you have selected.
Turn the SmartKey to position 1 or 2 in the
X
ignition lock (
To switch on: press button : repeatedly
X
until the desired ventilation 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
ventilation may switch off.
i
You can open the side windows and the slid-
ing sunroof using the "Convenience opening"
feature ( page 88). The seat ventilation of
Y
the driver's seat automatically switches to the
highest level.
page 131).
Y
page 144) is selected,
Y
page 131).
Y
i
When the vehicle is stationary, the fan
speed can be reduced automatically. This
reduces the noises of the seat ventilation.