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Instruments and controls89Heated steering wheel
Activate heating by pressing *.
Activation is indicated by the LED in
the button.
Heating is operational when the
engine is running and during an
Autostop.
Stop-start system 3 166.
Horn
Press j.
Windscreen wiper/washer
Windscreen wiper with adjustable
wiper intervalHI:fastLO:slowINT:interval wipingOFF:off
For a single wipe when the
windscreen wiper is off, press the
lever downwards to position 1x.
Do not use if the windscreen is frozen.
Switch off in car washes.
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102Instruments and controlsOverviewOTurn signal 3 106XSeat belt reminder 3 106vAirbag and belt tensioners
3 107VAirbag deactivation 3 107pCharging system 3 108ZMalfunction indicator light
3 108RBrake and clutch system 3 108mElectric parking brake 3 108jElectric parking brake fault
3 108uAntilock brake system (ABS)
3 109RGear shifting 3 109EFollowing distance 3 109aLane keep assist 3 109nElectronic Stability Control off
3 109bElectronic Stability Control and
Traction Control system 3 109kTraction Control system off
3 110WEngine coolant temperature
3 110!Preheating 3 110YAdBlue 3 110wTyre pressure monitoring
system 3 110IEngine oil pressure 3 110YLow fuel 3 111dImmobiliser 3 1118Exterior light 3 111CHigh beam 3 111fHigh beam assist 3 111fLED headlights 3 111>Fog light 3 111rRear fog light 3 112mCruise control 3 112CAdaptive cruise control 3 112AVehicle detected ahead 3 1127Pedestrian detected ahead
3 205LSpeed limiter 3 112LTraffic sign assistant 3 112hDoor open 3 112
Speedometer
Indicates vehicle speed.
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110Instruments and controlsHave 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 3 183,
Traction Control system 3 182.
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
3 242.
If there is sufficient coolant, consult a workshop.
Preheating
! illuminates yellow.
Preheating of Diesel engine is
activated. Only activates when
outside temperature is low. Start the
engine when control indicator
extinguishes.
AdBlue
Y flashes yellow.
AdBlue level is low. Refill AdBlue
soon to avoid prevention of the
engine start.
AdBlue 3 171.
Tyre pressure monitoring system
w illuminates or flashes yellow.Illuminates
Tyre pressure loss. Stop immediately and check tyre pressure.
Flashes
Fault in system or tyre without
pressure sensor mounted (e.g. spare
wheel). After 60 to 90 seconds the
control indicator illuminates
continuously. Consult a workshop.
Engine oil pressure
I illuminates red.
Illuminates when the ignition is
switched on and extinguishes shortly after the engine starts.
Illuminates when the engine is
runningCaution
Engine lubrication may be
interrupted. This may result in
damage to the engine and/or
locking of the drive wheels.
Page 128 of 323

126Instruments and controls1. Switch off any electricalconsumers 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 Info-Display.
Some of the personal settings for
different drivers can be memorised
individually for each vehicle key.
Memorised settings 3 22.
Depending on vehicle equipment and
country-specific regulations some of the functions described below may
not be available.
Some functions are only displayed or
active when the engine is running.
Personal settings 7" Colour-Info-Display
Press ;, select Settings and then
Vehicle on the touch-screen.
In the corresponding submenus the
following settings can be changed:
Vehicle ● Climate & Air Quality
Auto Fan Max Speed : Modifies
the level of the cabin airflow of the climate control in automatic
mode.
Auto Heated Seats :
Automatically activates the seat heating.
Auto Defog : Supports
windscreen dehumidification by
automatically selecting the
necessary settings and
automatic air conditioning mode.
Page 130 of 323

128Instruments and controlslocking function while a door isopen.
Auto Door Lock : Activates or
deactivates the automatic door
locking function after switching on ignition.
Delayed Door Lock : Activates or
deactivates the delayed door locking function. This feature
delays the actual locking of the
doors until all doors are closed.
● Remote Lock, Unlock, Start
Remote Unlock Light Feedback :
Activates or deactivates the
hazard warning flasher feedback
whilst unlocking.
Remote Lock Feedback :
Changes what kind of feedback
is given when locking the vehicle.
Remote Door Unlock : Changes
the configuration to unlock only the driver's door or the whole
vehicle whilst unlocking.
Relock Remotely Unlocked
Doors : Activates or deactivates
the automatic relock function
after unlocking without opening
the vehicle.Remote Window Operation :
Activates or deactivates the
operation of power windows with electronic key.
Passive Door Unlock : Changes
the configuration to unlock only the driver's door or the whole
vehicle whilst unlocking.
Passive Door Lock : Activates or
deactivates the passive locking
function. This feature locks the
vehicle automatically after
several seconds if all doors have
been closed and an electronic
key has been removed from the
vehicle.
Remote Left in Vehicle Alert :
Activates or deactivates the
warning chime when the
electronic key remains in the
vehicle.
Personal settings 8" Colour-Info-Display
Press ; then select the SETTINGS
icon.
In the corresponding submenus the
following settings can be changed:
Vehicle ● Climate and Air Quality
Auto Fan Speed : Modifies the
level of the cabin airflow of the
climate control in automatic
mode.
Auto Heated Seats :
Automatically activates the seat
heating.
Auto Demist : Supports
windscreen dehumidification by
automatically selecting the
necessary settings and
automatic air conditioning mode.
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Climate control149Climate controlClimate control systems.............149
Air conditioning system ...........149
Electronic climate control system .................................... 152
Auxiliary heater ........................158
Air vents ..................................... 158
Adjustable air vents .................158
Fixed air vents ......................... 159
Maintenance .............................. 159
Air intake ................................. 159
Air conditioning regular operation ................................ 160
Service .................................... 160Climate 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 turningTEMP 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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Climate control155Temperature 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 3 166.
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.
Page 160 of 323
158Climate controlBasic settingsFollowing settings can be changed in
the Personalisation menu in the
Info-Display:
● fan speed regulation in automatic
mode.
● settings of automatic rear window
heating.
● settings of automatic windscreen
dehumidification
● settings of automatic seat heating
Vehicle personalisation 3 126.
Heated rear window and exterior
mirrors b
3 41
Heated windscreen ,
3 42.
Heated seats q
3 53.
Ventilated seats r
3 53Auxiliary heater
Air heater
Quickheat is an electric auxiliary air
heater which automatically warms up
the passenger compartment more
quickly.Air vents
Adjustable air vents At least one air vent must be open
while cooling is on.
Illustration shows centre air vents in
instrument panel.