Page 225 of 666

223 Controls in detail
Air conditioning
3
The reheat function quickly ensures de-
frosted windows and dehumidification in
the vehicle interior.\1To switch on:
press the
Å
switch
(
\2
page 218).The indicator lamp in the switch
comes on.
\1To switch on:
press the
Å
switch
(
\2
page 218).
\1
The indicator lamp in the switch goes
out.
Fogged-up windows
\1
If necessary, switch off air-recircula-
tion mode by pressing the
Ä
switch (
\2
page 218).The indicator lamp in the switch goes
out. Fresh air is supplied to the inte-
rior.
\1
Switch on the reheat function using
the
Å
switch (
\2
page 218).
The indicator lamp in the switch
comes on.
\1
Turn airflow control
2
(
\2
page 218) to a higher blower
speed, but do not turn the control
below second speed.
\1
Turn temperature selector
control
1
(\2
page 218) to a higher
temperature.
iResidual heat switches off automati-
cally:\4
after about 30 minutes
\4
when you switch on the ignition
\4
if the battery’s voltage drops
Reheat function
(dehumidification)
Special settingsiOnly use special settings briefly.
nf_BA.book Page 223 Friday, January 25, 2008 3:53 PM
Page 226 of 666
224 Controls in detailAir conditioning
3
\1
Turn air distribution control
5
to
‚P
.
\1
Close the center air vents and the air
outlets for the head area and the rear
compartment.
\1
Open the side air vents and direct
them at the side windows.
\1
If the windshield is fogged up on the
outside, switch on the windshield
wipers (
\2
page 210).
DefrostingThe following settings can be used to
clear the windshield and the side win-
dows, e.g. if covered with frost.
\1
Set temperature selector control
1
to
P
.
\1
Turn airflow control
2
to fourth
speed.
\1
Turn air distribution control
5
to
‚P
.
\1
Close the center air vents and the air
vents for the head area and the rear
compartment.
\1
Open the side air vents fully.
1Side window defroster vent thumbwheel\1
Turn side window defroster vent
thumbwheel
1
all the way up.
The defroster vent is open if the
defroster vent is visible.
nf_BA.book Page 224 Friday, January 25, 2008 3:53 PM
Page 227 of 666
225 Controls in detail
Air conditioning
3
The glove box can be ventilated when
Tempmatic is switched on, e.g. to cool
its contents.1To switch the air supply on / off\1To switch on:
press switch
1
to the
left.
\1To switch off:
press switch
1
to
the right.
Control panel for the air conditioning in
the rear
1Air conditioning in the rear
2Airflow control
3Temperature selector control\1To switch on:
press the
switch.
The indicator lamp in the switch
comes on.
\1To switch off:
press the
switch again.
The indicator lamp in the switch goes
out.
Ventilated glove box*
Air conditioning in the rear*
N83.60-2009-31
nf_BA.book Page 225 Friday, January 25, 2008 3:53 PM
Page 228 of 666

226 Controls in detailAir conditioning
3
Setting the airflowThe airflow is set using the airflow con-
trol for the rear compartment.\1To increase:
press the
Q
airflow
control.
\1To reduce:
press the airflow
control.
The display next to the airflow con-
trols indicates the speed of the air-
flow.
Setting the temperatureOnly change the temperature in small in-
crements.\1To increase:
turn the temperature
selector control clockwise.
\1To reduce:
turn the temperature se-
lector control counterclockwise.
Air vents in the roof air ductAdjustable air vents are integrated in the
roof air duct.1Air vents\1
Adjust the airflow by opening /
closing the air flaps.
iYour vehicle may be equipped with
an air-conditioning system in the rear
compartment and / or a rear heater.
If both systems are installed and the
temperature selector control is in the
middle position, only one of the sys-
tems operates and air-recirculation
mode is active.
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Page 229 of 666

227 Controls in detail
Air conditioning
3
Alter the air distribution by turning
the air vents.
The heater is operational when the engi-
ne is running. Depending on the tempe-
rature selected and the outside
temperature, it heats or ventilates.
The dust filter removes most dust partic-
les and pollen from the outside air. The interval for replacing the filter de-
pends on environmental factors, e.g.
high air pollution. The interval may be
shorter than that indicated in the Ser-
vice Booklet.!
CAUTION
Never close all the air vents, other-
wise there is a risk of damage to the
air-conditioning system in the rear
compartment.
Heater*
Warning
G
Follow the settings recommended on the
following pages for heating or cooling.
The windows could otherwise fog up. As a
result, you could be distracted from road
and traffic conditions and cause an acci-
dent.
Warning
G
Air flowing out of the air vents in the foot-
well when the heater is in operation may
be very hot. There is, therefore, a risk of
burns to bare skin in the immediate proxi-
mity of these outlets. Keep bare skin away
from these air outlets. If necessary, direct
the airflow into a different area of the ve-
hicle interior using the air distribution
control.
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Page 230 of 666
228 Controls in detailAir conditioning
3
Heater control panel
iIf the vehicle interior has been heat-
ed up, ventilate the vehicle before
driving off.
Keep the air inlet on the hood free of
ice and snow.
Position the sliders for the center air
vents in the central position to provi-
de practically draft-free ventilation.
Function
1
Temperature selector control
(\2
page 230)
2
Airflow control with indicator
(\2
page 230)
3
Switch for air-recirculation mode
(\2
page 231)
4
Air distribution control
(\2
page 231)
nf_BA.book Page 228 Friday, January 25, 2008 3:53 PM
Page 231 of 666
229 Controls in detail
Air conditioning
3
Basic settingAir distribution control
Heating
\1
Set temperature selector control
1
(
\2
page 228) as required, but do not
turn the control below the middle po-
sition.
\1
Set airflow control
2
(\2
page 228)
as required, but do not turn the con-
trol below the second speed.
\1
Set the air distribution control as
shown.
\1
Close the center air vents.
\1
Close the air vents.
\1
Open the side air vents half-way and
direct them at the side windows.
Ventilation This setting rapidly ventilates the vehicle
interior.\1
Turn temperature selector control 1
(\2
page 228) to the lowest set-
ting (maximum cooling).
\1
Set airflow control
2
(\2
page 228)
as required, but do not turn the con-
trol below the second speed.
\1
Set air distribution control
5
(
\2
page 228) to
h
.
\1
Open as required:
\4
the center air vents
\4
the side air vents
\4
the ventilation vents
nf_BA.book Page 229 Friday, January 25, 2008 3:53 PM
Page 232 of 666

230 Controls in detailAir conditioning
3
Setting the temperature The temperature is set using temperatu-
re selector control
1
in the control pa-
nel (
\2
page 228).
Only change the temperature in small in-
crements.
\1To increase:
turn the temperature
selector control clockwise.
\1To reduce:
turn the temperature se-
lector control slightly counterclock-
wise.
Setting the airflow The airflow is set using the airflow cont-
rol
2
in the control panel (
\2
page 228).
\1To increase/reduce:
set the airflow
control to the desired level.
Setting the air distribution The air distribution is set using the air
distribution control
2
in the control pa-
nel (
\2
page 228).
iIf you use the basic settings for heat-
ing or ventilating the vehicle, you will
rarely need to adjust the tempera-
ture, airflow and air distribution
(\2
page 229).
The symbols on the air distribution
control have the following meanings: Sym-
bols
Meaning
h
\4
Air from the side air
vents, center air vents
and ventilation vents
Ô
P
\4
Air to the windshield
\4
Air from the air vents
Ò
\4
Air to the windshield
\4
Air from the air vents
\4
Air to the footwell
Ó
\4
Air from the air vents
\4
Air to the footwell
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