Page 129 of 450
Control panel for dual-zone automatic climate control
USAonly
Front control panel
:Sets the temperature, left (Ypage 134)
;Defrosts the windshield (Ypage 136)
=Switches the maximum cooling MAX COOL on or off (Ypage 136)
?Switches cooling with air dehumidification on/off (Ypage 132)
ASwitches the rear window defroster on/off (Ypage 137)
BSets the temperature, right (Ypage 134)
CSwitches air-recirculation mode on/off (Ypage 138)
DSets the air distribution (Ypage 135)
EIncreases the airflow (Ypage 135)
FReduces the airflow (Ypage 135)
GActivates/deactivates climate control (Ypage 132)
HSets climate control to automatic (Ypage 134)
Overview of climate control systems127
Climate control
Page 130 of 450
Canada only
Front control panel
:Sets the temperature, left (Ypage 134)
;Defrosts the windshield (Ypage 136)
=Switches the ZONE function on/off (Ypage 136)
?Switches cooling with air dehumidification on/off (Ypage 132)
Switches the residual heat on or off (
Ypage 138)
ASwitches the rear window defroster on/off (Ypage 137)
BSets the temperature, right (Ypage 134)
CSwitches air-recirculation mode on/off (Ypage 138)
DSets the air distribution (Ypage 135)
EIncreases the airflow (Ypage 135)
FReduces the airflow (Ypage 135)
GActivates/deactivates climate control (Ypage 132)
HSets climate control to automatic (Ypage 134)
Rear control panel
:Sets rear-compartment climate control to automatic
;Switches the rear climate control on/off
=Directs the airflow through the rear air vents
?Switches the seat heating on the right-hand side on/off
128Overview of climate control systems
Climate control
Page 131 of 450

ADirects the airflow through the footwell vents
BSwitches the seat heating on the left-hand side on/off
Optimum use of dual-zone climate
control
The following contains notes and recommenda-
tions on optimum use of dual-zone climate con-
trol.
RYou can switch on climate control by using the
Ãand¿ orà andÁ buttons.
The indicator lamps in the Ãand
¿ buttons or the ÃandÁ buttons
light up.
RSet the temperature to 72 ‡ (22 †).
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 as well. The indicator
lamp above the ábutton goes out.
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.
During automatic engine switch-off, the climate
control system only operates at a reduced capa-
city. If you require the full cl
imate control output,
you can switch off the ECO start/stop function
by pressing the ECO button (
Ypage 151).
Overview of climatecont rol systems129
Climate control
Page 132 of 450

Control panel for 3-zone automatic climate control
USAonly
Front control panel
:Sets the temperature, left (Ypage 134)
;Defrosts the windshield (Ypage 136)
=Switches the maximum cooling MAX COOL on or off (Ypage 136)
?Switches cooling with air dehumidification on/off (Ypage 132)
ASwitches the rear window defroster on/off (Ypage 137)
BSets the temperature, right (Ypage 134)
CSwitches the ZONE function on/off (Ypage 136)
DActivates/deactivates climate control (Ypage 132)
ESets the air distribution (Ypage 135)
FIncreases the airflow (Ypage 135)
GReduces the airflow (Ypage 135)
HDisplay
IAdjusts the climate mode settings (Ypage 134)
JSwitches air-recirculation mode on/off (Ypage 138)
KSets climate control to automatic (Ypage 134)
Rear control panel
LIncreases the airflow (Ypage 135)
MSets the temperature (Ypage 134)
NSets rear-compartment climate control to automatic (Ypage 134)
ODirects the airflow through the rear air vents (Ypage 135)
PSwitches the seat heating on the right-hand side on/off (Ypage 104)
QDirects the airflow through the footwell vents (Ypage 135)
RSwitches the rear climate control on/off (Ypage 132)
SReduces the airflow (Ypage 135)
TSwitches the seat heating on the left-hand side on/off (Ypage 104)
130Overview of climate control systems
Climate control
Page 133 of 450

Canada only
Front control panel
:Sets the temperature, left (Ypage 134)
;Defrosts the windshield (Ypage 136)
=Switches the residual heat on or off (Ypage 138)
?Switches cooling with air dehumidification on/off (Ypage 132)
ASwitches the rear window defroster on/off (Ypage 137)
BSets the temperature, right (Ypage 134)
CSwitches the ZONE function on/off (Ypage 136)
DActivates/deactivates climate control (Ypage 132)
ESets the air distribution (Ypage 135)
FIncreases the airflow (Ypage 135)
GReduces the airflow (Ypage 135)
HDisplay
IAdjusts the climate mode settings (Ypage 134)
JSwitches air-recirculation mode on/off (Ypage 138)
KSets climate control to automatic (Ypage 134)
Rear control panel
LIncreases the airflow (Ypage 135)
MSets the temperature (Ypage 134)
NSets rear-compartment climate control to automatic (Ypage 134)
ODirects the airflow through the rear air vents (Ypage 135)
PSwitches the seat heating on the right-hand side on/off (Ypage 104)
QDirects the airflow through the footwell vents (Ypage 135)
RSwitches the rear climate control on/off (Ypage 132)
SReduces the airflow (Ypage 135)
TSwitches the seat heating on the left-hand side on/off (Ypage 104)
Overview of climate control systems131
Climate control
Page 134 of 450

Optimum use of 3-zone automatic cli-
mate control
The following contains instructions and recom-
mendations to enable you to get the most out of
your 3-zone automatic climate control.
RActivate climate control using theÃand
¿ buttons. The indicator lamps above the
à and¿ buttons light up.
RIn automatic mode, you can also use the ñ
button to set a climate mode (FOCUS/
MEDIUM/DIFFUSE). The MEDIUM level is
recommended.
RSet the temperature to 72 ‡ (22 †).
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.
RUse 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.
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 151).
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
iSwitch on climate control primarily using
the à button (Ypage 134).
In the rear compartment, you can also switch
climate control on and off using the Ãand
^ buttons.
Activating or deactivating
XTurn the SmartKey to position 2in the ignition
lock (Ypage 145).
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Airflow and air distribution are set to auto-
matic mode.
or
XPress the ^button.
The indicator lamp in the ^button goes
out. The previously selected settings are
restored.
XTo deactivate: press the^button.
The indicator lamp in the ^button lights
up.
Switching cooling with air dehumidi-
fication on/off
General notes
If you deactivate the "Cooling with air-dehumid-
ification" 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, only deactivate the
"Cooling with air-dehumidification" function
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.
132Operating the climate control systems
Climate control
Page 135 of 450
Condensation maydripfrom the undersi deof
the veh iclewhen it is in coolin g mode. This is
normal and not a sign that there isa malfunc-
tion.
Switching on/off
XTo activate: press the¿orÁ button.
The indicator lamp inthe ¿ orÁ button
lights up.
XTo deactivate: press the¿orÁ but-
ton.
The indicator lamp inthe ¿ orÁ button
goes out. The "Coolingwit h air dehumidif ica-
tion" function has a delayed switch-off fea-
ture.
Operating the climate control systems133
Climate control
Page 136 of 450

Problems with the "Cooling with air dehumidification" function
ProblemPossible causes/consequences andMSolutions
The indicator lamp in the
¿orÁ button
flashes three times or
remains off. The "Cool-
ing with air dehumidifi-
cation" function 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.
In the rear compartment, you can also switch
climate control for the rear seats to automatic
mode using the Ãbutton.
Automatic control
XTurn the SmartKey to position 2in the ignition
lock (Ypage 145).
XSet the desired temperature.
XTo activate: press theÃbutton.
The indicator lamp in the Ãbutton lights
up. Automatic air distribution and airflow are
activated.
XTo switch to manual mode: press the_
button.
or
XPress the IorK button.
The indicator lamp in the Ãbutton goes
out.
3-zone automatic climate control: when auto-
matic mode is activated, you can select a cli-
mate mode (
Ypage 134).
Adjusting the climate mode settings
You can select the following climate mode set-
tings in automatic mode:
FOCUS high airflow, slightly cooler setting
MEDIUM medium airflow, standard setting
DIFFUSE low airflow, slightly warmer and draft- free setting
XTurn the SmartKey to position 2in the ignition
lock (Ypage 145).
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 145).
XTo increase or decrease: turn control:or
B counter-clockwise or clockwise
(
Ypage 127).
Only change the temperature setting in small
increments. Start at 72 ‡ (22 †).
134Operating the climate control systems
Climate control