Problems with the rear window heating
Problem
Possible causes/consequences and
M
M
Solutions
The rear window heating
has switched off prema-
turely or cannot be
switched on.
The battery has not been sufficiently charged.
X
Switch off any consumers that are not required, e.g. reading lamps,
interior lighting or the seat heating.
When the battery is sufficiently charged, the rear window heating
can be switched on again.
Switching air-recirculation mode
on/off
General notes
You can deactivate the flow of fresh air tempo-
rarily if unpleasant odours are entering the vehi-
cle from outside. The air already inside the vehi-
cle will then be recirculated.
If you switch on air-recirculation mode, the win-
dows can mist up more quickly, in particular at
low temperatures. Only use air-recirculation
mode briefly to prevent the windows from mist-
ing up.
Switching on/off
X
Turn the key to position 2 in the ignition lock
(
Y
page 158).
X
To activate: press the
d
button.
The indicator lamp in the
d
button lights
up.
i
In the event of high pollution levels
(THERMOTRONIC automatic climate control
only) or at high outside temperatures, air-
recirculation mode is automatically activated.
When air-recirculation mode is activated
automatically, the indicator lamp in the
d
button is not lit.
Outside air is added after about 30 minutes.
X
To deactivate: press the
d
button.
The indicator lamp in the
d
button goes
out.
i
Air-recirculation mode is deactivated auto-
matically:
R
after approximately five minutes at outside
temperatures below approximately 5 †
R
after approximately five minutes if cooling
with air dehumidification is deactivated
R
after approximately 30 minutes at outside
temperatures above approximately 5 † if
the "Cooling with air dehumidification"
function is activated
Convenience opening/closing using
the air-recirculation button
G
WARNING
When the convenience closing feature is oper-
ating, parts of the body could become trapped
in the closing area of the side window and the
sliding sunroof. There is a risk of injury.
Observe the complete closing procedure
when the convenience closing feature is oper-
ating. When closing make sure that no parts of
the body are in the closing area.
G
WARNING
During convenience opening parts of the body
could be drawn in or become trapped
between the side window and window frame.
There is a risk of injury.
When opening, make sure that nobody is
touching the side window. If someone
becomes trapped, immediately press
the
W
switch in the door to stop the move-
ment of the side windows. To continue closing
the side window, pull on the
W
switch.
X
Convenience closing feature (vehicles
with sliding sunroof or panorama sliding
sunroof): press and hold the
d
button
until the side windows and the panorama slid-
ing sunroof are closed.
The indicator lamp in the
d
button lights
up. Air-recirculation mode is activated.
X
Convenience closing feature (vehicles
without sliding sunroof or panorama slid-
Operating the climate control system
145
Climate
control
Z
