Cockpit
FunctionPage
:Steering wheel paddle shift-
ers159
;Combination switch116
=Instrument cluster34
?Horn
ADIRECT SELECT lever154
BPARKTRONIC warning dis-
play210
COverhead control panel40
DClimate control systems126
EIgnition lock145
Start/Stop button146
FunctionPage
FAdjusts the steering wheel
manually107
GAdjusts the steering wheel
electrically107
Steering wheel heating108
HCruise control lever191
IOpens the hood356
JDiagnostics connection29
KElectric parking brake179
LLight switch114
Cockpit33
At a glance
Useful information
i
This Operator's Manual describes all models
and all standard and optional equipment of
your vehicle available at the time of publica-
tion of the Operator's Manual. Country-spe-
cific differences are possible. Please note
that your vehicle may not be equipped with all
features described. This also applies to
safety-related systems and functions.
iRead the information on qualified specialist
workshops (Ypage 29).
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.
For vehicles with a combustion engine, the
"Cooling with air dehumidification" function is
only available when the engine is running. For
hybrid vehicles, the "Cooling with air dehumidi-
fication" function is also available via the elec-
tric refrigerant compressor when the engine is
not running. Optimum climate control 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 138).
iVentilate the vehicle for a brief period during
warm weather, e.g. using the convenience
opening feature (
Ypage 92).
This will speed up the cooling process and the
desired interior temperature will be reached
more quickly.
If you start the engine using your smartphone,
the last selected climate control setting is reac-
tivated (
Ypage 148).
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.
iVehicles with AIR-BALANCE package: in
addition to ioniz ation, the vehicle has an air
filter with anti-allergenic properties that con-
tribute to improved air filtration.
iIt is possible that under certain circumstan-
ces the residual heat function may be activa-
ted automatically an hour after the SmartKey
has been removed in order to dry the auto-
matic climate control. The vehicle is then ven-
tilated for 30 minutes.
126Overview of climate control systems
Climate control
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
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
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
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
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
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