Mercedes-Benz S-Class Coupe Operator's Manual page 115

Problems with the seat heating
Problem
The seat heating has
switched off prema-
turely or cannot be
switched on.
Switching the seat ventilation on/off
Front seats
The three blue indicator lamps in the buttons
indicate the blower setting you have selected.
Turn the SmartKey to position 1 or 2 in the
X
ignition lock ( page 151).
Y
To switch on: press button : repeatedly
X
until the desired blower setting 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 using the
"Convenience opening" feature
( page 99). The seat ventilation of the
Y
driver's seat automatically switches to the
highest level.
i
When the vehicle is stationary, the fan
speed can be reduced automatically. This
reduces the noises of the seat ventilation.
Possible causes/consequences and M Solutions
The on-board voltage is too low because too many electrical con-
sumers are switched on.
Switch off electrical consumers that you do not need, such as
X
the rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating can be
switched back on manually.
Seats
113
Z