Page 22 of 327
20In brief●Lock the vehicle with button e on
the radio remote control.
Activate the anti-theft alarm
system 3 35.
● The engine cooling fans may run
after the engine has been
switched off 3 228.Caution
After running at high engine
speeds or with high engine loads,
operate the engine briefly at a low load or run in neutral for
approx. 30 seconds before
switching off, in order to protect
the turbocharger.
Keys, locks 3 21, Laying the vehicle
up for a long period of time 3 227.
Page 107 of 327

Instruments and controls105Illuminates green
Seat occupied and the seat belt has
been fastened.
Illuminates grey
Seat not occupied.
Fastening the seat belt 3 56.
Airbag and belt tensioners
v illuminates red.
When the ignition is switched on, the control indicator illuminates for
approx. 4 seconds. If it does not
illuminate, does not go out after
4 seconds or illuminates whilst
driving, there is a fault in the airbag
system. Seek the assistance of a
workshop. The airbags and belt
pretensioners may fail to trigger in the event of an accident.
Deployment of the belt pretensioners
or airbags is indicated by continuous
illumination of v.9 Warning
Have the cause of the fault
remedied immediately by a
workshop.
Belt pretensioners, airbag system
3 55, 3 58.
Airbag deactivation
V illuminates yellow.
The front passenger airbag is
activated.
* illuminates yellow.
The front passenger airbag is
deactivated 3 63.9 Danger
Risk of fatal injury for a child using
a child restraint system together
with activated front passenger
airbag.
Risk of fatal injury for an adult
person with deactivated front
passenger airbag.
Charging system
p illuminates red.
Illuminates when the ignition is
switched on and extinguishes shortly
after the engine starts.
Illuminates when the engine is
running
Stop, switch off engine. Vehicle
battery is not charging. Engine
cooling may be interrupted. The
brake servo unit may cease to be
effective. Seek the assistance of a
workshop.
Page 124 of 327

122Instruments and controls
With active display, press ;.
Turn MENU to select SETTINGS
display icon.
Press MENU to confirm.
The following settings can be
selected by turning and pressing the
multifunction knob:
● Time and Date
● Sport Mode
● Language (Language)
● Valet Mode
● Radio
● Vehicle
● Bluetooth
●Voice
● Display
● Rear Camera
● Return to Factory Settings
● Software Information
In the corresponding submenus, the
following settings can be changed:
Time and Date
See 'Clock' 3 90.
Sport Mode
The driver can select the functions
which will be activated in Sport mode
3 179.
● Sport Mode Backlighting :
Changes the instrument
illumination colour.
● Engine Sport Performance :
Accelerator pedal and gear
change characteristics become
more responsive.
● Sport Steering : Steering support
is reduced.● Sport Suspension : Damping
becomes harder.
● All Wheel Drive : Engine torque is
distributed to a greater extent to the rear axle.
Language (Language)
Selection of the desired language.
See Infotainment manual.
Valet Mode
See Infotainment manual.
Radio
See Infotainment manual.
Vehicle ● Climate and Air Quality
Auto Fan Speed : Modifies the
level of the cabin airflow of the
climate control in automatic
mode.
Air Conditioning Mode : Controls
the state of the cooling
compressor when the vehicle is
started. Last setting
(recommended) or at vehicle
start is either always on or always
off.
Page 143 of 327

Climate control141Climate controlClimate control systems.............141
Air conditioning system ...........141
Automatic climate control system .................................... 143
Dual automatic climate control system .................................... 148
Auxiliary heater ........................152
Air vents ..................................... 152
Adjustable air vents .................152
Fixed air vents ......................... 153
Maintenance .............................. 153
Air intake ................................. 153
Pollen filter ............................... 153
Air conditioning regular operation ................................ 154
Service .................................... 154Climate control systems
Air conditioning system
Controller and buttons for the
following functions:
● temperature TEMP
● air distribution l M K
● fan speed Z
● cooling A/C
● air recirculation 4
● demisting and defrosting V
Heated rear window Ü 3 43.
Heated seats ß 3 54.
Ventilated seats A 3 54.
Heated steering wheel * 3 86.
Temperature TEMP
Turn controller:
red:warmblue:cold
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Page 144 of 327
142Climate controlAir distribution l M K
Press:
l:to windscreen and front door
windowsM:to head area via adjustable air
ventsK:to foot well and windscreen
Combinations are possible.
Setting is indicated by the LED in the
button.
Fan speed Z
Adjust the air flow by turning the
controller Z to the desired speed. J
means fan off.
Cooling 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) cabin air as
required. Therefore condensation
may form and is drained under the
vehicle.
If no cooling or drying is required,
switch off the cooling system for fuel
saving reasons. Activated cooling
might inhibit Autostops.
Page 145 of 327

Climate control143Stop-start system 3 160.
Demisting and defrosting the
windows V
●
Press V: fan automatically
switches to higher speed, the air
distribution is directed towards
the windscreen.
● Set temperature controller TEMP to warmest level.
● Switch on heated rear window Ü.
● Open side air vents as required and direct them towards the doorwindows.
Note
If V is pressed while the engine is
running, an Autostop will be inhibited
until V is pressed again.
If V is pressed while the engine is
in an Autostop, the engine will restart
automatically.
Stop-start system 3 160.
Maximum cooling
Briefly open the windows so that hot
air can disperse quickly.
● Switch on cooling A/C.
● Press M for air distribution.
● Set temperature controller TEMP to coldest level.
● Set fan speed controller Z to
highest level.
● Open all vents.
Air recirculation system 4
Press 4 to activate air recirculation
mode. Activation is indicated by the
LED in the button.
Select air recirculation to assist in
cooling the interior or in blocking
outside odors or exhaust. Whenrecirculation is selected, a partial
ventilation to refresh the interior air
will occur every 10 minutes.
Press 4 again to deactivate
recirculation mode.
In warm and very humid ambient air
conditions, the windscreen might mist up from outside, when cold air is
directed to it. If windscreen mists up
from outside, activate windscreen
wiper and deactivate l.
Air distribution to l: Air recirculation
is deactivated.
Automatic climate control
system
In automatic mode, temperature, fan
speed and air distribution are
regulated automatically.
Page 146 of 327
144Climate control
Controller and buttons for the
following functions:
● temperature TEMP
● air distribution l M K
● fan speed Z
● automatic mode AUTO
● cooling A/C
● air recirculation 4
● demisting and defrosting V
● system ON/OFF X
Heated rear window Ü 3 43.
Heated front seats ß 3 54.
Ventilated front seats A 3 54.
Heated steering wheel * 3 86.
Indication
Settings of temperature and fan
speed are indicated in the climate
display.
Each change of settings is shown
briefly in the Info-Display.
The electronic climate control system
is only fully operational when the
engine is running.
Climate control system settings are
saved in the key used to lock the
vehicle.
Automatic mode AUTO
Basic setting for maximum comfort:
● Press AUTO, the air distribution
and fan speed are regulated
automatically. The LED in the
button illuminates to indicate
activation.
● Press A/C to switch on optimal
cooling and demisting. The LED in the button illuminates to
indicate activation.
Page 147 of 327

Climate control145● Set temperature by turningcontroller TEMP. Suggested
comfort setting is 22 °C.
● Open all air vents to allow optimised air distribution in
automatic mode.
Setting of fan speed regulation in
automatic mode can be changed in the vehicle personalisation menu in
the Colour-Info-Display.
Select the relevant setting in Settings,
I Vehicle in the Colour-Info-Display.
Colour-Info-Display 3 118.
Vehicle personalisation 3 121.
Temperature preselection TEMPSet temperature by turning controller
TEMP to the desired value.
Selected temperature is indicated in
the climate 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 AC is switched on, reducing the set
cabin temperature can cause the
engine to restart from an Autostop or inhibit an Autostop.
Stop-start system 3 160.Demisting and defrosting the
windows V
●
Press V. The LED in the button
illuminates to indicate activation.
● Temperature and air distribution are set automatically and the fan
runs at high speed.
● Switch on heated rear window Ü.
● To return to previous mode: press V. To return to automatic
mode: press AUTO.
Setting of automatic rear window heating can be changed in the vehicle personalisation menu in the Colour-
Info-Display.