Overview of climate control systems
General notes
Observe the settings recommended on the fol-
lowing pages. The windows could otherwise fog
up.
To prevent the windows from fogging up:
Rswitch off climate control only briefly
Rswitch on air-recirculation mode only briefly
Rswitch on the cooling with air dehumidifica-
tion function
Rswitch on the defrost windshield function
briefly, if required
Climate control regulates the temperature and
the humidity in the vehicle interior and filters
undesirable substances out of the air.
Climate control can only be operated when the
engine is running. Optimum operation is only
achieved with the side windows and roof closed.
The residual heat function can only be activated
or deactivated with the ignition switched off
(
Ypage 124).
iVentilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (
Ypage 88). This will speed
up the cooling process and the desired inte-
rior temperature will be reached more
quickly.
iThe integrated filter filters out most parti-
cles of dust and soot and completely filters
out pollen. It also reduces gaseous pollutants
and odors. A clogged filter reduces the
amount of air supplied to 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 conditions, e.g.
heavy air pollution, the interval may be
shorter than stated in the Maintenance Book- let.
114Overview of climate control systems
Climate control
Control panel for dual-zone automatic climate control
Canadaonly
:
Sets the temperature, left (Ypage 121)
;Defrosts the windshield (Ypage 122)
=Switches the ZONE function on/off (Ypage 122)
?Switches cooling with air dehumidification on/off (Ypage 120)
ASwitches the rear window defroster on/off (Ypage 123)
BSets the temperature, right (Ypage 121)
CSwitches air-recirculation mode on/off (Ypage 124)
DSets the air distribution (Ypage 121)
EIncreases the airflow (Ypage 122)
FReduces the airflow (Ypage 122)
GActivates/deactivates climate control (Ypage 119)
HSets climate control to automatic (Ypage 120)
Overview of climate control systems115
Climate control
USA only
:
Sets the temperature, left (Ypage 121)
;Defrosts the windshield (Ypage 122)
=Switches the maximum cooling MAX COOL on or off (Ypage 122)
?Switches cooling with air dehumidification on/off (Ypage 120)
ASwitches the rear window defroster on/off (Ypage 123)
BSets the temperature, right (Ypage 121)
CSwitches air-recirculation mode on/off (Ypage 124)
DSets the air distribution (Ypage 121)
EIncreases the airflow (Ypage 122)
FReduces the airflow (Ypage 122)
GActivates/deactivates climate control (Ypage 119)
HSets climate control to automatic (Ypage 120)
116Overview of climate control systems
Climate control
Control panel for 3-zone automatic climate control
Canadaonly
Front control panel
:Sets the temperature, left (Ypage 121)
;Defrosts the windshield (Ypage 122)
=Switches the residual heat on or off (Ypage 124)
?Switches cooling with air dehumidification on/off (Ypage 120)
ASwitches the rear window defroster on/off (Ypage 123)
BSets the temperature, right (Ypage 121)
CSwitches the ZONE function on/off (Ypage 122)
DActivates/deactivates climate control (Ypage 119)
ESets the air distribution (Ypage 121)
FIncreases the airflow (Ypage 122)
GReduces the airflow (Ypage 122)
HAdjusts the climate mode settings (Ypage 121)
ISwitches air-recirculation mode on/off (Ypage 124)
JSets climate control to automatic (Ypage 120)
Rear control panel
KIncreases the airflow (Ypage 122)
LReduces the airflow (Ypage 122)
MDisplay
NReduces the temperature (Ypage 121)
OIncreases the temperature (Ypage 121)
Overview of climate control systems117
Climate control
USA only
Front control panel
:Sets the temperature, left (Ypage 121)
;Defrosts the windshield (Ypage 122)
=Switches the maximum cooling MAX COOL on or off (Ypage 122)
?Switches cooling with air dehumidification on/off (Ypage 120)
ASwitches the rear window defroster on/off (Ypage 123)
BSets the temperature, right (Ypage 121)
CSwitches the ZONE function on/off (Ypage 122)
DActivates/deactivates climate control (Ypage 119)
ESets the air distribution (Ypage 121)
FIncreases the airflow (Ypage 122)
GReduces the airflow (Ypage 122)
HAdjusts the climate mode settings (Ypage 121)
ISwitches air-recirculation mode on/off (Ypage 124)
JSets climate control to automatic (Ypage 120)
Rear control panel
KIncreases the airflow (Ypage 122)
LReduces the airflow (Ypage 122)
MDisplay
NReduces the temperature (Ypage 121)
OIncreases the temperature (Ypage 121)
Notes on using automatic climate
control
Climate control system
Below, you can find a number of notes and rec-
ommendations to help you use climate control
optimally.
RActivate climate control using the Ãand
¿ buttons. The indicator lamps above the
à and¿ buttons light up.
RIn automatic mode, you can also use the ñ
button to set the climate mode (FOCUS,
MEDIUM or DIFFUSE). The MEDIUM level is
recommended.
RSet the temperature to 72 ‡ (22 †).
118Overview of climate control systems
Climate control
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,
since no fresh air is drawn into the vehicle in
air-recirculation mode.
RUse the ZONE function to adopt the temper-
ature settings on the driver's side for the
front-passenger side and the rear compart-
ment as well. The indicator lamp above the
á button goes out.
RVehicles with 3-zone automatic climate con-
trol: use the residual heat function if you want
to heat or ventilate the vehicle interior when
the ignition is switched off. The residual heat
function can only be activated or deactivated with the ignition switched off.
RIf you change the settings of the climate con-
trol system, the climate status display
appears for approximately three seconds at
the bottom of the screen in the multimedia
system display. You will see the current set-
tings of the various climate control functions.
ECO start/stop function
During automatic engine switch-off, the climate
control system only operates at a reduced capa- city. If you require the full climate control output,
you can switch off the ECO start/stop function
by pressing the ECO button (
Ypage 131).
Operating the climate control sys-
tems
Activating/deactivating climate con-
trol
General notes
When the climate control is switched off, the air
supply and air circulation are also switched off.
The windows could fog up. Therefore, switch off
climate control only briefly
iActivate climate control primarily using the
à button (Ypage 120).
Activating/deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to auto-
matic mode.
XTo deactivate: press the^button.
The indicator lamp in the ^button lights
up.
Operating the climate control systems119
Climate control
Switching cooling with air dehumidification on/off
General notes
If you deactivate the "Cooling with air-dehumidification" function, the air inside the vehicle will not
be cooled. The air inside the vehicle will also not be dehumidified. The windows can fog up more
quickly. Therefore, deactivate the cooling with air-dehumidification function only briefly.
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 drip from the underside of the vehicle when it is in cooling mode. This is normal
and not a sign that there is a malfunction.
Switching on/off
XTo activate: press the¿button.
The indicator lamp in the ¿button lights up.
XTo deactivate: press the¿button.
The indicator lamp in the ¿button goes out. The "Cooling with air dehumidification" function
has a delayed switch-off feature.
Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences and MSolutions
The indicator lamp in the
¿button flashes
three times or remains
off. The "Cooling with air
dehumidification" func-
tion cannot be switched
on.Cooling with air dehumidification has been deactivated due to a mal-
function.
XVisit a qualified specialist workshop.
Setting climate control to automatic
General notes
In automatic mode, the set temperature is main-
tained automatically at a constant level. The
system automatically regulates the temperature
of the dispensed air, the airflow and the air dis-
tribution.
The "Cooling with air dehumidification" function
is activated automatically in automatic mode.
Automatic control
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XSet the desired temperature.
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow are
activated.
i3-zone automatic climate control: when
automatic mode is activated, you can set the
climate mode (
Ypage 121).
XTo switch to manual mode: press the_
button.
or
XPress the IorK button.
The indicator lamp in the Ãbutton goes
out.
120Operating the climate control systems
Climate control
Adjusting the climatemode settings
The "Se tclimat emode" function is only available
wit h3-zone automatic climat econtrol .
You can select th efollowin gclimat emod eset -
ting sin automatic mode:
FOCUS high airflow, slightly cooler setting
MEDIUM medium airflow, standard setting
DIFFUS Elow airflow, slightly warmer and draft-
free setting
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XPress the Ãbutton.
XPress the ñbutton repeatedly until the
desired climate mode appears in the display.
Setting the temperature
Dual-zone automatic climate control
Different temperatures can be set for the driv-
er's and front-passenger sides.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XTo increase or reduce: turn temperature
control :orB counter-clockwise or clock-
wise (
Ypage 115).
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
3-zone automatic climate control
You can select different temperature settings
for the driver's and front-passenger sides as well
as for the rear compartment.
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XTo increase or reduce the temperature in
the front compartment: turn temperature
control :orB counter-clockwise or clock-
wise (
Ypage 117).
Only change the temperature setting in small increments. Start at 72 ‡ (22 †).
XTo increase or reduce the temperature in
the rear compartment using the front con-
trol panel: press theábutton.
The indicator lamp in the ábutton goes
out. The temperature setting for the driver's side
is adopted for the rear compartment and the
front-passenger side.
XTurn temperature control
:counter-clock-
wise or clockwise (Ypage 117).
Only change the temperature setting in small increments. Start at 72 ‡ (22 †).
XTo increase or reduce the temperature in
the rear compartment using the rear con-
trol panel: press therors button on
the rear control panel.
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
Setting the air distribution
Air distribution settings
P Directs air through the center and side air
vents
O Directs air through the footwell air vents
S Directs air through the center, side and
footwell vents
¯ Directs air through the defroster vents
b Directs the airflow through the defroster,
center and side air vents (Canada only)
a Directs air through the defroster and
footwell vents
_ Directs the airflow through the defroster
vents, the center and side air vents as
well as the footwell air vents (Canada
only)
iRegardless of the air distribution setting,
airflow is always directed through the side air
vents. The side air vents can only be closed
when the controls on the side air vents are
turned downwards.
Setting the air distribution
XTurn the SmartKey to position 2in the ignition
lock (Ypage 127).
XPress the _button repeatedly until the
desired symbol appears in the display.
Operating the climate control systems121
Climate control