Page 101 of 327

Instruments and controls99OverviewOTurn signal 3 104XSeat belt reminder 3 104vAirbag and belt tensioners
3 105VAirbag deactivation 3 105pCharging system 3 105ZMalfunction indicator light
3 106RBrake and clutch system
3 106-Operate pedal 3 106mElectric parking brake
3 106jElectric parking brake fault
3 106uAntilock brake system (ABS)
3 107[ or
RUpshift 3 107cVariable effort steering
3 107EFollowing distance 3 107)Lane departure warning
3 107rUltrasonic parking assist
3 107nElectronic Stability Control
off 3 108bElectronic Stability Control
and Traction Control system
3 108kTraction Control system off
3 108WEngine coolant temperature
3 108!Preheating 3 108%Diesel particle filter 3 108YAdBlue 3 108wTyre pressure monitoring
system 3 109IEngine oil pressure 3 109i or
YLow fuel 3 109dImmobiliser 3 109DAutostop 3 1108Exterior light 3 110CHigh beam 3 110lHigh beam assist 3 110fAdaptive forward lighting
3 110>Fog light 3 110rRear fog light 3 110mCruise control 3 110C or
mAdaptive cruise control
3 110AVehicle detected ahead
3 110LSpeed limiter 3 111
Page 110 of 327

108Instruments and controlsElectronic Stability Controloff
n illuminates yellow.
The system is deactivated.
Electronic Stability Control and Traction Control system
b illuminates or flashes yellow.
Illuminates
A fault in the system is present.
Continued driving is possible. Driving stability, however, may deteriorate
depending on road surface
conditions.
Have the cause of the fault remedied
by a workshop.
Flashes
The system is actively engaged.
Engine output may be reduced and
the vehicle may be braked
automatically to a small degree.
Electronic Stability Control 3 177,
Traction Control system 3 177.Traction Control system off
k illuminates yellow.
The system is deactivated.
Engine coolant temperature W illuminates red.
Illuminates when the engine is
running
Stop, switch off engine.Caution
Coolant temperature too high.
Check coolant level immediately
3 231.
If there is sufficient coolant, consult a workshop.
Preheating
! illuminates yellow.
Preheating of diesel engine is
activated. Only activates when
outside temperature is low.
Diesel particle filter
% illuminates or flashes yellow.
The diesel particle filter requires
cleaning.
Continue driving until %
extinguishes. If possible, do not allow engine speed to drop below
2000 rpm.
Illuminates
The diesel particle filter is full. Start
cleaning process as soon as
possible.
Flashes
The maximum filling level of the filter
is reached. Start cleaning process
immediately to avoid damage to the
engine.
Diesel particle filter 3 164, Stop-start
system 3 160.
AdBlue
Y flashes yellow.
AdBlue level is low. Refill AdBlue soon to avoid prevention of the
engine start.
Page 123 of 327

Instruments and controls121● If an unintended lane changeoccurs.
● If the diesel particle filter has reached the maximum filling
level.
● If safety function of the power tailgate detects obstacles in the
moving area.
When the vehicle is parked and/or the driver's door is opened
● With exterior lights on.
● If the trailer hitch is not engaged.
During an Autostop ● If the driver's door is opened.
● If any condition for an autostart is
not fulfilled.
Battery voltage When the vehicle battery voltage isrunning low, a warning message will
appear in the Driver Information
Centre.1. Switch off any electrical consumers which are not requiredfor a safe ride, e.g. seat heating,
heated rear window or other main consumers.
2. Charge the vehicle battery by driving continuously for a while or
by using a charging device.
The warning message will disappear
after the engine has been started
twice without a voltage drop.
If the vehicle battery cannot be
recharged, have the cause of the fault
remedied by a workshop.Vehicle personalisation
The vehicle's behaviour can be
personalised by changing the settings in the Colour-Info-Display.
Some of the personal settings for
different drivers can be memorised
individually for each vehicle key.
Memorised settings 3 24.
Depending on vehicle equipment and
country-specific regulations some of
the functions described below might
not be available.
Some functions are only displayed or
active when the engine is running.
Personal settings Following the changing of personal
settings is described via the buttons
below the display. This is valid for
4.2'' as well as 8'' Colour-Info-Display.
Additionally, the 8'' display is operable
as a touchscreen. See description
'Colour-Info-Display' 3 118 and the
Infotainment manual.
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 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.
Page 151 of 327

Climate control149Basic 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.
● Set temperature by touching R or
S on the driver side. Suggested
comfort setting is 22 °C.
Temperature can be set
differently for driver and
passenger. Touch R or S on the
passenger side to allow different
temperature zones.
● 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 SR
Set desired temperature by touching
R for higher temperatures or S for
lower temperatures.
Selected temperature is indicated in
the panels. Using driver's side panel
changes temperatures for both sides (when SYNC is selected), while using
the passenger side panel changes
only the passenger side temperature and turns off SYNC (if previously
selected).
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.
Dual zone temperature
synchronisation SYNC
Press SYNC to link passenger side
temperature setting to the driver side.
The LED in the button illuminates to
indicate activation.
When passenger side settings will be
adjusted, the LED extinguishes.
Page 152 of 327

150Climate controlDemisting 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 based on cool outside
temperatures 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.
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.
Manual settings
Climate control system settings can
be manually adapted by using the air
distribution buttons and the fan speed controller as follows. Manual
changing of settings will deactivate
the automatic mode.Fan speed SZR
Touch ZS or R. The selected fan
speed is briefly indicated in the Info-
Display.
If the fan is switched off, the air
conditioning is also deactivated.
To return to automatic mode: Press
AUTO .
Page 156 of 327
154Climate controlActive carbon filter
In addition to the particle filter, the active carbon filter reduces odours.
Air conditioning regularoperation
In order to ensure continuously
efficient performance, it is
recommended that air conditioning
should be operated for a few minutes once a month, irrespective of the
weather and time of year.
Service For optimal cooling performance, it is recommended to annually check the
climate control system, starting
three years after initial vehicle
registration, including:
● functionality and pressure test
● heating functionality
● leakage check
● check of drive belts
● cleaning of condenser and evaporator drainage
● performance checkNote
Refrigerant R-134a contains
fluorinated greenhouse gases.