Useful information
This Operator's Manual describes all models as
well as standard and optional equipment of your
vehicle that were available at the time of going
to print. Country-specific variations are possi-
ble. Note that your vehicle may not be equipped
with all of the described functions. This also
applies to systems and functions relevant to
safety.
Read the information on qualified specialist
workshops (
Ypage 27).
Overview of climate control systems
Important safety notes
Observe the recommended settings on the fol-
lowing pages. Otherwise, the windows could fog
up.
Climate control regulates the temperature and
the humidity in the vehicle interior and filters
undesirable substances from the air.Climate control is only operational when the
engine is running. The system only functions
optimally when the side windows are closed.
iVentilate the vehicle for a brief period during
warm weather. In order to cool the vehicle
more rapidly, switch climate control to air-
recirculation mode briefly. This will speed up
the cooling process and the desired interior
temperature will be reached more quickly.
iThe integrated filter can filter out most par-
ticles of dust and completely filters out pollen.
A clogged filter reduces the airflow into the
vehicle interior. For this reason, you should
always observe the interval for replacing the
filter, which is specified in the Maintenance
Booklet. As it depends on environmental con-
ditions, e.g. heavy air pollution, the interval
may be shorter than that stated in the Main-
tenance Booklet.
Heating control panel
:Sets the temperature (Ypage 101)
z Defrosts the windshield (
Ypage 102)
;KSets the airflow (Ypage 101)
z Defrosts the windshield (
Ypage 102)
=eActivates and deactivates air-recirculation mode (Ypage 103)
Overview of climate control systems97
Climate control
?Sets the air distribution (Ypage 101)
sz Defrosts the windshield (
Ypage 102)
Information on heating
Below, you can find a number of notes and rec-
ommendations to help you use the heating opti-
mally.
RSet the temperature control to the middle
level. Only change the temperature in small
increments.
If you wish to heat up the vehicle interior as
quickly as possible, set the temperature con-
trol to thezmaximum setting. When the
desired interior temperature has been reached, turn the temperature control back
down in small steps.
ROnly use the settings for defrosting the wind-
shield briefly, until the windshield is clear
again.
ROnly use air-recirculation mode briefly, e.g. if
there are unpleasant outside odors or when in
a tunnel. The windows could otherwise fog up
as no fresh air is drawn into the vehicle in air-
recirculation mode. The indicator lamp in the
h button comes on when the function is
switched on.
Control panel for the air-conditioning system
:Sets the temperature (Ypage 101)
z Defrosts the windshield (
Ypage 102)
;Sets the airflow (Ypage 101)
K Increases the airflow
I Reduces the airflow
=eActivates and deactivates air-recirculation mode (Ypage 103)
?xSwitches the reheat function (window air dehumidification) on and off (Ypage 102)
ASets the air distribution (Ypage 101)
sz Defrosts the windshield (
Ypage 102)
B¿Switches cooling with air dehumidification on/off (Ypage 101)
CBlower setting bar display
zDefrosts the windshield (
Ypage 102)
98Overview of climate control systems
Climate control
Vehicle with rear-compartment heating/
rear-compartment air conditioning
XTo switch on/off:press theiswitch.
If the indicator lamp in the button lights up,
the rear-compartment heating/rear-com-
partment air conditioning is switched on.
Switching the cooling with air dehu-
midification function on/off
Important information
If you switch off the "Cooling with air dehumid-
ification" function, the air inside the vehicle will
not be cooled (in warm weather) or dehumidi-
fied. The windows could fog up more quickly.
The cooling with air dehumidification function is
only available when the engine is running. The
air inside the vehicle is cooled and dehumidified
according to the temperature selected.
Condensation may appear on the underside of
the vehicle when in cooling mode. This is normal
and not a sign that there is a malfunction.
Switching on and off
Vehicle with air conditioning
XPress the ¿button.
If the indicator lamp in the button lights up,
cooling with air dehumidification is switched
on.
Setting the temperature
Increasing and reducing temperature in
the front compartment via the control
panel
Only change the temperature in small incre-
ments. Start at the center position, or at 72 ‡
(22 †).
XSwitch on climate control (Ypage 100).
XTurn temperature control :clockwise to
increase or counterclockwise to reduce the
temperature (
Ypage 98).
Increasing and reducing temperature in
the rear compartment via the control
panel
Only change the temperature in small incre-
ments.
XSwitch on climate control (Ypage 100).
XTurn rear-compartment temperature control
= (Ypage 99) or rear-compartment air-con-
ditioning system ;(Ypage 100) clockwise
to increase or counterclockwise to reduce the
temperature.
iVehicles with additional air conditioning and
heating in the rear compartment: if you set
the temperature control to the center posi-
tion, only one of the two climate control sys-
tems works in the rear compartment and in
air-recirculation mode (
Ypage 103).
Setting the air distribution
Air distribution settings
The air distribution symbols have the following
meanings:
m Directs air through the center and side
air vents
s
z Directs air to the windshield and the air
vents
q Directs air to the windshield, the air
vents and into the footwell
r Directs air to the air vents and into the
footwell
Adjusting
XSwitch on climate control (Ypage 100).
XSet air-distribution control ?for the heating
(Ypage 97) or air-conditioning system A
(Ypage 98) to the corresponding symbol.
Setting the airflow
XSwitch on climate control (Ypage 100).
XVehicle with heating/rear-compartment
heating: set airflow control ;of the heating
(
Ypage 97) or of the rear-compartment heat-
ing (Ypage 99) to the desired level.
XVehicle with air conditioning/rear-com-
partment air conditioning: press theI
Operating the climate control system101
Climate control
button to reduce or theKbutton to
increase the airflow.
The blower speeds are shown in bars next to
the buttons.
Defrosting the windows
You can use the "defrosting" function to defrost
the windshield or to demist the inside of the
windshield and the side windows.
Only use the following settings until the win-
dows are clear again.
XVehicle with window heating: switch on the
front (Ypage 103) and/or rear window
defroster (Ypage 103) .
XSwitch on climate control (Ypage 100).
Vehicle with heating
XSet temperature control :and airflow con-
trol ;toz (Ypage 97).
XSet air-distribution control ?tosz
(Ypage 97).
XClose the center air vents (Ypage 104) and
the air outlets for the headroom and the rear compartment (
Ypage 105).
XDirect the side air vents towards the side win-dows and open the defroster vents for the
side windows (
Ypage 105).
Vehicle with air conditioning
XSet temperature control :to
z (Ypage 98).
XPress the Kbutton until the maximum
blower output is reached.
All bars in the display next to the button light up.
XSet air-distribution control Atosz
(Ypage 98).
XClose the center air vents (Ypage 104) and
the air outlets for the headroom and the rear compartment (
Ypage 105).
XDirect the side air vents towards the side win-dows and open the defroster vents for the
side windows (
Ypage 105).
Clearing condensation from the win-
dows
Windows fogged up on the inside
You should only select this setting until the win-
dows are clear again.
XVehicle with window heating: switch on the
front (Ypage 103) and/or rear window
defroster (Ypage 103) .
XSwitch on climate control (Ypage 100).
XSwitch off air-recirculation mode
(Ypage 103).
Vehicle with heating
XSet temperature control :to a higher tem-
perature (Ypage 97).
XSet airflow control ;to a higher blower set-
ting. It should be set at least to level two
(
Ypage 97).
XSet air-distribution control ?tosz
(Ypage 97).
iIf the windows still fog up, set the control as
described for defrosting (Ypage 102).
Vehicle with air conditioning
XActivate cooling with air dehumidification
(Ypage 101).
XPress the ¨button (Ypage 98).
Reheat mode is activated. The indicator lamp
in the switch lights up.
To deactivate reheat mode, press the ¨
button again. The indicator lamp in the button
goes out.
Windows fogged up on the outside
You should only select this setting until the
windshield is clear again.
XSwitch on the windshield wipers (Ypage 94).
XSwitch on climate control (Ypage 100).
XAdjust air distribution to the footwell
(Ypage 101).
XClose the air vents (Ypage 104).
102Operating the climate control system
Climate control
On-board computer with steering wheel
buttons
XTurn the SmartKey to position2in the ignition
lock.
XPress the ybutton.
The Aux. heatsubmenu is shown in the dis-
play.
If no switch-on time has been selected, the
selected switch-on time is highlighted or
Timer off
is highlighted.
iYou can also access the Aux. heat.sub-
menu via the Settings(Ypage 165) menu.
XUse theWorX button on the steering
wheel to select the desired switch-on time.
Use the Timer off
setting to deactivate
automatic switch-on.
XPress the Vbutton on the steering wheel.
The switch-on time is selected. The yellow
indicator lamp in the ybutton lights up.
Setting the switch-on time
XUse the same method to select a switch-on
time as described in the "Preselecting a
switch-on time" section.
On-board computer without steering wheel
buttons
XPress the 9reset button on the instrument
cluster.
The hour display flashes.
XUse the fand gbuttons on the instrument
cluster to set the hours.
XPress the 9reset button
The minute display flashes.
XUse the fand gbuttons to set the minutes.
The switch-on time is set and selected.
On-board computer with steering wheel but-
tons
XPress the 9button on the steering wheel.
The display shows the Hoursmenu.
XUse theWandX buttons on the steer-
ing wheel to set the hours.
XPress the 9button.
The display shows the Minutesmenu.
XUse theWandX buttons to set the
minutes.
XPress the Vbutton.
The switch-on time is set and selected.
Operation with the remote control
Important information
You can switch the auxiliary heating on/off and
set the operating duration using the remote con-
trol. You can use up to 4 remote control units on
the vehicle. These must be synchronized for the
receiver in your vehicle (
Ypage 109).
The remote control has a maximum range of
approximately 600 meters. This range is
reduced by:
Rsources of interference
Rsolid objects between the remote control and
the vehicle
Rthe remote control being in an unfavorable
position in relation to the vehicle
Rtransmitting from an enclosed space
Overview of the remote control
:Indicator lamp
;To confirm settings
=To switch the remote control on/off, set the operating duration or end or cancel settings
Indicator lamp :lights up in various ways to
show different operating modes:
SignalingMeaning
Lights up redRemote control switched on
Data transfer
108Operating the auxiliary heating system
Climate control
Use the timer to:
Ractivate and deactivate immediate heating
mode
Rset up to three switch-on times
Rset the operating duration to between 10 and
120 minutes or to continuous operation
Rset the heating level (preselected tempera-
ture) to a range between 10 and 30
Timer overview
Timer above the overhead control panel
:
Program column
GSets preselection memory 1 – 3
(
Ypage 114)
Sets weekday (Mon. – Sun.) (
Ypage 113)
;Menu bar
y Switches immediate heating mode
on/off (
Ypage 114)
B Sets the program times
(
Ypage 114)
Ñ Sets the day, time and the operating
duration (
Ypage 113)
ß Sets the heating level (
Ypage 114)
=Display panel for: time, heating level and
operating duration
àContinuous operation mode active
ß Heating level set
?Selects options in program column :or
menu bar ;(forwards)
Increases values
AConfirms a selection or setting
BStatus bar
y Heating mode activated
CActivates the timer
Cancels or ends settings in a menu
DSelects options in program column :or
menu bar ;(backwards)
Reduces values
Activating the timer
The timer switches to standby mode after
10 seconds. The display goes off.
XPress and hold the Übutton until the
menu bar appears in the display and the time
is shown.
Setting the day, time and operating dura-
tion
You must reset the day, time, and default value
for the operating duration:
Rduring initial operation
Rafter a voltage supply interruption (e.g. if the
battery has been disconnected)
Rafter a malfunction.
You can find information on malfunctions in the
"Problems with the auxiliary warm-air heater"
section (
Ypage 115).
XPress the Ûorâ button until the Ñ
symbol in menu bar ;flashes.
XPress the bbutton.
In program column :, the day selected
flashes.
XPress the Ûorâ button to set the
desired day.
XPress the bbutton.
The day selected is stored. The hour setting of
the clock flashes.
XIn the same way, set the hour and subse-
quently the minutes, then confirm by pressing
the b button.
The time is stored. Program column :dis-
appears and the operating duration flashes.
iThe operating duration set is the default set-
ting for immediate heating mode. You can set
the operating duration from 10 to
120 minutes or activate continuous opera-
tion.
XUsing the Ûorâ button, set the
minute value or select the àsymbol for
cont
inuous operation.
XPress the bbutton.
The operating duration is stored. The time is
shown.
Operating the auxiliary heating system113
Climate control
Z