Mercedes-Benz 2001 M-Class, Operator'S Manual

Page: 112 / 466

Problems with the seat heating
Problem
Possible causes/consequences and M M Solutions
The seat heating has
switched off prema-
turely or cannot be
switched on.
The on-board voltage is too low because too many electrical con-
sumers are switched on.
X
Switch off electrical consumers that you do not need, such as
the rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating will
switch back on automatically.
Switching the seat ventilation on/off
Switching on/off
The three blue indicator lamps in the buttons
indicate the ventilation level you have selec-
ted.
X
Turn the SmartKey to position 2 in the igni-
tion lock (
Y
page 157).
X
To switch on: press button : repeatedly
until the desired ventilation level is set.
X
To switch off: press button : repeatedly
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
sliding sunroof using the "Convenience
opening" feature (
Y
page 95). The seat ven-
tilation of the driver's seat automatically
switches to the highest level.
110
Seats
Seats,
steering
wheel
and
mirrors