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146Infotainment systemSteering wheel controls
sShort press: take phone call
or activate speech recognition
or interrupt a prompt and
speak directly
Long press: activate voice
pass-thru (if supported by phone)
n Press: end / decline call
or deactivate speech recognition
or activate / deactivate
mute function
k
l Radio: press to select
next / previous favourite or
station
Media: press to select
next / previous track
À Upwards: increase volume
Á Downwards: decrease volume
Homescreen
The homescreen contains an
overview of all available applications.
Futher applications may be on the
second page of the homescreen. To
go there, swipe to the left.
To go to the homescreen, press ;.
● Audio : Display the audio
application.
● Phone : Display the phone
application.
● Navigation : Display the
navigation application.
● Climate : Display the climate
settings.
● Users : Display the profile
settings.
● Settings : Display the system
settings.
● Apple CarPlay : Start Apple
CarPlay when phone connected.
● Android Auto : Start Apple
CarPlay when phone connected.
● Camera : Display the panoramic
view system application if
available.
Page 165 of 345

Climate control163Climate controlClimate control systems.............163
Air conditioning system ...........163
Electronic climate control system .................................... 166
Auxiliary heater ........................172
Air vents ..................................... 172
Adjustable air vents .................172
Fixed air vents ......................... 173
Maintenance .............................. 173
Air intake ................................. 173
Air conditioning regular operation ................................ 174
Service .................................... 174Climate control systems
Air conditioning system
Illustration shows functions which
may not be available for your
particular vehicle.
Controls for: ● Fan speed E
● Temperature TEMP
● Air distribution w, x and y
● Air conditioning A/C
● Demisting and defrosting á
● Air recirculation n
● External air 5
● Heated rear window and exterior
mirrors b
● Heated windscreen ,
● Heated seats ß
Some changes of settings are
indicated briefly in the Info-Display.
Activated functions are indicated by
the LED in the respective button.
Fan speed E
Adjust the air flow by turning Z to the
desired speed.clockwise:increaseanti-clockwise:decrease
Temperature TEMP
Adjust the temperature by turning
TEMP to the desired temperature.
red area:warmerblue area:colder
Heating will not be fully effective until
the engine has reached normal
operating temperature.
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164Climate controlAir distribution w x y
Press:w:to windscreen and front door
windowsx:to head area and rear seats via
adjustable air ventsy:to front and rear foot well and
windscreen
Combinations are possible.
Air conditioning A/C
Press A/C to switch on cooling.
Activation is indicated by the LED in
the button. Cooling is only functional
when the engine is running and
climate control fan is switched on.
Press A/C again to switch off cooling.
The air conditioning system cools and
dehumidifies (dries) as soon as the
outside temperature is slightly above the freezing point. Therefore
condensation may form and drip from under the vehicle.
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons.
Activated cooling may inhibit
Autostops. Stop-start system 3 180.Demisting and defrosting the
windows á
● Press á: fan automatically
switches to higher speed, the air
distribution is directed towards
the windscreen.
● Set temperature controller TEMP to warmest level.
● Switch on air conditioning A/C if
required.
● Switch on heated rear window b.
● Switch on heated windscreen , if available.
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Climate control165● Open side air vents as requiredand direct them towards the doorwindows.
● For maximum demisting and defrosting set fan speed to
highest level.
Note
If á is pressed while the engine is
running, an Autostop will be inhibited
until á is pressed again.
If á is pressed while the engine is in
an Autostop, the engine will restart
automatically.
Stop-start system 3 180.
Air recirculation system nPress n to activate air recirculation
mode, LED is indicated.
Select air recirculation to assist in
cooling the interior or in blocking
outside odours or exhaust.
Press n again to deactivate air
recirculation mode.
On version without heated
windscreen, press 5 to deactivate
air recirculation. External air mode is activated.9 Warning
The exchange of fresh air is
reduced in air recirculation mode.
In operation without cooling the air humidity increases, so the
windows may mist up from inside.
The quality of the passenger
compartment air deteriorates,
which may cause the vehicle
occupants to feel drowsy.
In warm and very humid ambient air conditions, the windscreen may mist
up from outside when cold air is
directed towards it. If windscreen
mists up from outside, activate
windscreen wiper and deactivate w.
External air mode 5
Press 5 to activate external air
mode, LED is indicated.
Press n to activate air recirculation
mode. External air mode is
deactivated.
Page 168 of 345
166Climate controlMaximum cooling
Briefly open the windows so that hot
air can disperse quickly.
● Switch on air conditioning A/C.
● Press n for air recirculation
system on.
● Press x for air distribution.
● Set temperature control TEMP to
coldest level.
● Set fan speed E to highest level.
● Open all vents.
Version with heated
windscreen ,
If the vehicle is equipped with heated
windscreen, button 5 is replaced by
button ,.
Heated rear window and exterior mirrors b
3 42
Heated windscreen ,
3 43.
Heated seats q
3 54.
Electronic climate control
system
The dual zone climate control allows
different temperatures for driver side
and front passenger side.
In automatic mode, temperature, fan
speed and air distribution are
regulated automatically.
Illustration shows functions which
may not be available for your
particular vehicle.
Page 169 of 345

Climate control167Controls for:● Control dial for temperature on driver side
● Control dial for temperature on passenger side
● CLIMATE enters the Climate
setting menu in the Info-Display
● Fan speed increase ( and
decrease )
● Climate control ON/OFF or â
● Automatic mode AUTO
● Manual air recirculation n
● Demisting and defrosting à
● Heated rear window and exterior mirrors b
● Heated windscreen ,
● Heated seats q
● Ventilated seats r
Activated functions are indicated by
the LED in the respective control.
The electronic climate control system
is only fully operational when the
engine is running.Climate setting menu CLIMATE
Settings for
● Air distribution w, x , y
● Fan speed E
● Temperature for driver and passenger side 23°/25°
● Dual zone temperature synchronisation SYNC
● Air conditioning ON/OFF
can be triggered manually in the
Climate setting menu. Press
CLIMATE to enter the menu and
follow the touch buttons.
Climate setting menu can also be
displayed by touching button g in the
Info-Display 3 118.
Changes of settings via the controls
are indicated as pop up in the
Info-Display.
Automatic mode AUTO
Basic settings for automatic control
with maximum comfort:
● Press AUTO, the air distribution
and fan speed are regulated
automatically.
● Open all air vents to allow optimised air distribution in
automatic mode.
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168Climate control● Cooling must be activated in theclimate setting menu for optimalcooling and demisting. Press
Climate to enter the menu and
follow the touch button to switch on air conditioning A/C.
● Set the preselected temperatures separately for
driver and front passenger using
the left and right control dials.
Recommended temperature is
22 °C. Temperature is indicated
briefly in displays beside the
control dials and in the climate
setting menu.
● Air recirculation mode n should
be deactivated. When
deactivated the LED in the button is not illuminated.
Manual settings Climate control system settings can
be changed by activating the
following functions as described
below.Fan speed ( )
Press upper button ( to increase or
lower button ) to decrease fan speed.
The fan speed is indicated as pop-up in the Info Display. Fan speed can
also be changed by touch buttons in
the climate setting display. Press
Climate to enter the menu.
Pressing the lower button ) for longer:
fan and cooling are switched off.
To return to automatic mode press
AUTO .
Air distribution w, x , y
Press Climate to enter the menu.
Touch:
w:to windscreen and front door
windowsx:to head area and rear seats via
adjustable air ventsy:to front and rear foot well and
windscreen
To return to automatic air distribution
press AUTO .
Page 171 of 345

Climate control169Temperature preselection
Set the preselected temperatures
separately for driver and front
passenger to the desired value using
the left and right control dials. The
knob on the passenger side changes
the temperature for the passenger
side. The knob on the driver's side
changes the temperature for the
driver's side or for both sides
depending on activation of
synchronisation SYNC.
Recommended temperature is 22 °C .
Temperature is indicated in displays
beside the control dials and as pop-
up in the Info-Display.
If the minimum temperature Lo is set,
the climate control system runs at maximum cooling, if cooling A/C is
switched on.
If the maximum temperature Hi is set,
the climate control system runs at maximum heating.
Note
If A/C is switched on, reducing the
set cabin temperature can cause the engine to restart from an Autostop or
inhibit an Autostop.
Stop-start system 3 180.
Dual zone temperature
synchronisation SYNC
Press Climate to enter the menu.
Touch SYNC to link passenger side
temperature setting to the driver side.
When passenger side control dial will be adjusted, synchronisation is
deactivated.Air conditioning A/C
Press Climate to enter the menu and
follow the touch button to switch air
conditioning A/C ON or A/C OFF.
Cooling is only functional when the
engine is running and climate control
fan is switched on.
The air conditioning system cools and
dehumidifies (dries) when outside
temperature is above a specific level. Therefore condensation may form
and drip from under the vehicle.
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons.