Optimum use of the air-conditioning
system
Below, you can find a number of notes and rec-
ommendations to help you use the air-condi-
tioning system optimally.
RSwitch on the cooling with air dehumidifica-
tion function. The indicator lamp above the
rocker switch lights up.
RSet the temperature to 72 ‡ (22 †). Only
change the temperature in small increments.
ROnly use the "Windshield defrosting" function
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.
ROnly use reheat mode until the windows are
clear again.
Rear-compartment heating control panel
:i Switches rear-compartment heating on and off (Ypage 102)
;KSets the airflow (Ypage 103)
=Sets the temperature (Ypage 103)
Optimum use of rear-compartment
heating
For optimum climate control, set the tempera-
ture control to the middle level. Only change the
temperature in small increments.
Overview of climate control systems101
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 102).
XTurn temperature control :clockwise to
increase or counterclockwise to reduce the
temperature (
Ypage 100).
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 102).
XTurn rear-compartment temperature control
= (Ypage 101) or rear-compartment air-
conditioning system ;(Ypage 102) clock-
wise 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 105).
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 102).
XSet air-distribution control ?for the heating
(Ypage 99) or air-conditioning system A
(Ypage 100) to the corresponding symbol.
Setting the airflow
XSwitch on climate control (Ypage 102).
XVehicle with heating/rear-compartment
heating: set airflow control ;of the heating
(
Ypage 99) or of the rear-compartment heat-
ing (Ypage 101) to the desired level.
XVehicle with air conditioning/rear-com-
partment air conditioning: press theI
Operating the climate control system103
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 105) and/or rear window
defroster (Ypage 105) .
XSwitch on climate control (Ypage 102).
Vehicle with heating
XSet temperature control :and airflow con-
trol ;toz (Ypage 99).
XSet air-distribution control ?tosz
(Ypage 99).
XClose the center air vents (Ypage 106) and
the air outlets for the headroom and the rear compartment (
Ypage 107).
XDirect the side air vents towards the side win-dows and open the defroster vents for the
side windows (
Ypage 107).
Vehicle with air conditioning
XSet temperature control :to
z (Ypage 100).
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 100).
XClose the center air vents (Ypage 106) and
the air outlets for the headroom and the rear
compartment (
Ypage 107).
XDirect the side air vents towards the side win-
dows and open the defroster vents for the
side windows (
Ypage 107).
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 105) and/or rear window
defroster (Ypage 105) .
XSwitch on climate control (Ypage 102).
XSwitch off air-recirculation mode
(Ypage 105).
Vehicle with heating
XSet temperature control :to a higher tem-
perature (Ypage 99).
XSet airflow control ;to a higher blower set-
ting. It should be set at least to level two
(
Ypage 99).
XSet air-distribution control ?tosz
(Ypage 99).
iIf the windows still fog up, set the control as
described for defrosting (Ypage 104).
Vehicle with air conditioning
XActivate cooling with air dehumidification
(Ypage 103).
XPress the ¨button (Ypage 100).
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 96).
XSwitch on climate control (Ypage 102).
XAdjust air distribution to the footwell
(Ypage 103).
XClose the air vents (Ypage 106).
104Operating the climate control system
Climate control
Window heating
Windshield heater
Windshield heater switch
The windshield heater consumes a lot of power.
You should therefore switch it off as soon as the
windshield is clear. Otherwise, the windshield
heating only switches off automatically after five minutes.
XStart the engine.
XTo switch on/off: press thezswitch.
The indicator lamp in the zbutton comes
on when the windshield heating is switched
on.
If the indicator lamp in the zwindshield
heating button flashes, the on-board voltage is
too low. The windshield heating has switched off
prematurely or cannot be activated.
XSwitch off any consumers that are not
required, e.g. reading lamps or interior light-
ing.
If the on-board voltage is sufficient again within
30 seconds, the windshield heating switches on
again automatically. It otherwise remains
switched off.
Rear window defroster
Rear window defroster switch
The rear window defroster consumes a lot of
power. You should therefore switch it off as
soon as the window is clear. The rear window
heating otherwise only switches off automati-
cally after 12 minutes.
XStart the engine.
XTo activate and deactivate: press the|
button.
The indicator lamp in the |button comes
on when the rear window defroster is
switched on.
If the indicator lamp in the |rear window
defroster button flashes, the on-board voltage is
too low. The rear window defroster has switched off prematurely or cannot be activated.
XSwitch off any consumers that are not
required, e.g. reading lamps or interior light-
ing.
If enough on-board voltage is available again
within 30 seconds, the rear window heating
automatically switches on again. It otherwise
remains switched off.
Switching air-recirculation mode
on/off
Important safety notes
When you switch on air-recirculation mode, the windows could fog up more quickly, in particular
at low outside temperatures. Only switch on air-
recirculation mode for a short time.
You can deactivate the intake of fresh air if
unpleasant odors enter the vehicle from out-
side. The air inside the vehicle will only be cir-
culated.
Operating the climate control system105
Climate control
Heating and air-conditioning system
Air-recirculation mode switches off automati-
cally after about 10 to 30 minutes, depending on
the outside temperature.
XSwitch on climate control (Ypage 102).
XTo activate/deactivate:press theebut-
ton.
If the indicator lamp in the ebutton lights
up, air-recirculation mode is activated.
Rear-compartment heating and rear-
compartment air-conditioning system
On vehicles with rear-compartment heating and
a rear-compartment air-conditioning system,
you can activate or deactivate air-recirculation
mode for the rear-compartment climate control.
XSwitch on climate control (Ypage 102).
XTo activate: set the temperature control of
rear-compartment heating =(Ypage 101) or
rear-compartment air conditioning system ;
(
Ypage 102) to the center position.
Only one of the two climate control systems in
the rear compartment is activated and is in
air-recirculation mode.
XTo deactivate: turn the temperature control
of rear-compartment heating =(Ypage 101)
or rear-compartment air-conditioning sys-
tem ;(
Ypage 102) clockwise or counter-
clockwise. Only change the temperature in
small increments.
Adjusting the air vents
Important safety notes
GWARNING
Very hot or very cold air can flow from the air
vents. This could result in burns or frostbite in
the immediate vicinity of the air vents. There
is a risk of injury.
Make sure that all vehicle occupants always
maintain a sufficient distance to the air out-
lets. If necessary, redirect the airflow to
another area of the vehicle interior.
The center and side air vents are adjustable. On vehicles with a rear-compartment air-condi-
tioning system, you can also adjust the air vents
in the roof duct.
iFor virtually draft-free ventilation, adjust the
sliders of the center air vents to the center
position.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
Rkeep the air inlet grille on the hood free of
blockages, such as ice, snow or leaves.
Rnever cover the vents or the ventilation grilles
in the vehicle interior.
Setting the center air vents
:Center air vent, left
;Center air vent, right
=Thumbwheel for center air vent, right
?Thumbwheel for center air vent, left
XTo open: turn thumbwheel =to the left or
thumbwheel ?to the right.
XTo close: turn thumbwheel =to the right or
thumbwheel ?to the left.
106Adjusting the air vents
Climate control
Outside tempera-
tureEngine runtime
Above 32 ‡ (0 †)at least 10 minutes
32 ‡ (0 †) to 14 ‡
(Ò10 †)at least 15 minutes
Below 14 ‡ (Ò10 †)at least 20 minutes
Before switching on
XCheck the fuel level and top up if necessary.
The auxiliary heating is operated directly
using the vehicle's fuel. The tank must be at
least a quarter full to ensure that the auxiliary
heating functions.
XSwitch on climate control (Ypage 102).
XSet the temperature control to the desired
temperature (Ypage 103).
XSet the air distribution as required
(Ypage 103).
XOpen the center (Ypage 106) and side air
vents (Ypage 107) and set them to the middle
position.
iThe auxiliary heating automatically switches
to heater booster mode after the engine is
started.
Operating with the button (control
panel)
iSwitch the heater booster function on or off
with the ¢button (Ypage 112).
XTo switch on auxiliary heating: press and
hold the upper section of the ybutton for
longer than two seconds.
The red indicator lamp in the button lights up.
The auxiliary heating heats or ventilates the interior to the temperature that you have set.
The blower switches to the first level.
XTo deactivate the auxiliary heating:
press
the upper section of the yswitch.
or
XTurn the key in the ignition lock to position 0.
The red indicator lamp in the button goes out.
The auxiliary heating operates for another two
minutes and then switches off automatically.
Selecting a switch-on time
Important information
You can use the on-board computer to define up
to three switch-on times, one of which may be
preselected.
The yellow indicator lamp in the ybutton
goes out after 30 minutes, if you:
Rhave selected the switch-on time and
Rturn the key to position 0in the ignition lock
On-board computer without steering
wheel buttons
XTurn the key to position 2in the ignition lock.
XPress the ybutton.
The y symbol flashes in the display.
or
XPress the 4menu button on the instrument
cluster repeatedly until the ysymbol
flashes in the display.
XUse the forg buttons on the instrument
cluster to select the switch-on time 1to3.
The switch-on time selected is displayed.
XWait ten seconds for the standard display to
appear.
The switch-on time is selected. The yellow
indicator lamp in the ybutton lights up.
If you do not preselect a switch-on time, and
--:--
is shown in the display, this means that
the automatic switch-on mode is switched
off. The yellow indicator lamp in the y
button goes out.
Operating the auxiliary heating system109
Climate control
Z
On-board computer with steering wheel
buttons
XTurn the key 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 Settingsmenu (Ypage 167).
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 111).
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
110Operating the auxiliary heating system
Climate control
SignalingMeaning
Flashes redAuxiliary heating switched
off
Lights up
greenAuxiliary heating switched
on
Flashes greenChange operating duration
active
Flashes alter-
nately red and
greenRemote control in synchro-
nizing mode
iWhen the remote control battery is weak,
indicator lamp :flashes red rapidly. Replace
the remote control battery (
Ypage 112).
You can find information on further lamp sta-
tuses in the "Problems with the hot-water aux-
iliary heater" section (
Ypage 113).
Switching the remote control on/off
The remote control switches to standby mode
after ten seconds. Indicator lamp :goes out.
XTo switch on: press and hold the Übutton
until indicator lamp :lights up red.
If a connection between the remote control
and the receiver in the vehicle has been estab-
lished and indicator lamp ::
Rflashes red, the auxiliary heating is switched
off.
Rlights up green, the auxiliary heating is
switched on.
XTo switch off:press and hold the Übut-
ton until indicator lamp :goes out.
Switching the auxiliary heating on/off
XSwitch on the remote control.
XTo switch on: when indicator lamp :flashes
red, press the bbutton.
During data transmission, indicator lamp :
lights up red.
When indicator lamp :lights up green, the
auxiliary heating is switched on.
XTo switch off: when indicator lamp :lights
up green, press the bbutton.
During data transmission, indicator lamp :
lights up red.
When indicator lamp :flashes red, the aux-
iliary heating is switched off.
Changing the operating duration
XSwitch on the remote control.
XWhen indicator lamp :flashes red, press
Ü andb simultaneously.
Indicator lamp :flashes green.
XPress the Übutton repeatedly until the
desired operating duration is shown.
R20 minutes
Indicator lamp :flashes green twice.
R30 minutes
Indicator lamp :flashes green three
times.
R40 minutes
Indicator lamp :flashes green four times.
XPress the bbutton.
During data transmission, indicator lamp :
lights up red.
If indicator lamp :emits two long, green
flashes, the selected operating duration is
stored.
iIf no adjustment is made to the operating
duration, indicator lamp :flashes six times
and the remote control goes into standby
mode.
Synchronizing the remote control
XPress the yauxiliary heating button in the
control panel for longer than ten seconds
(
Ypage 109).
When you press and hold the ybutton, the
red indicat
or lamp lights up in the button.
When the red indicator lamp in the ybut-
ton flashes, the receiver in the vehicle is ready
for synchronizing.
XPress and hold the Üremote control but-
ton until indicator lamp :lights up red.
If there is an active connection between the
remote control and the receiver, indicator
lamp :flashes alternately red and green.
The remote control is in synchronizing mode.
iIf you press the Übutton again on the
remote control after starting synchronization,
you will only synchronize this remote control
unit with the receiver. Any other remote con-
trol units that were synchronized will be
cleared. Indicator lamp :flashes alternately
red and green (very slowly).
XPress the bbutton on the remote control.
During data transmission, indicator lamp :
lights up red.
Operating the auxiliary heating system111
Climate control
Z