Page 74 of 259
72Instruments and controlsControlsSteering wheel adjustment
Unlock lever, adjust steering wheel,
then engage lever and ensure it is
fully locked.
Do not adjust steering wheel unless
vehicle is stationary and steering
wheel lock has been released.
Steering wheel controls
Some driver assistance systems,
Infotainment system and a connected mobile phone can be operated via the
controls on the steering wheel.
Driver assistance systems 3 149.
Further information is available in the
Infotainment manual.
Heated steering wheel
Activate heating by pressing *.
Activation is indicated by the LED in
the button.
Page 75 of 259
Instruments and controls73The recommended grip areas of the
steering wheel are heated quicker
and to a higher temperature than the
other areas.
Heating is operational when the
engine is running and during an
Autostop.
Stop-start system 3 135.
Horn
Press j.
Windscreen wiper and
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.
Adjustable wiper interval
Wiper lever in position INT.
Turn the adjuster wheel to adjust the
wiping frequency.
Page 84 of 259
82Instruments and controlsOverviewOTurn lights 3 87XSeat belt reminder 3 87vAirbag and belt tensioners
3 88VAirbag deactivation 3 88pCharging system 3 88ZMalfunction indicator light
3 89HService vehicle soon 3 89STOPStop engine 3 89JSystem check 3 89RBrake and clutch system
3 89uAntilock brake system (ABS)
3 90RGear shifting 3 90)Lane departure warning
3 90bElectronic Stability Control
and Traction Control system
3 90aElectronic Stability Control
and Traction Control system
off 3 90!Preheating 3 91%Diesel particle filter 3 91YAdBlue 3 91wDeflation detection system
3 91IEngine oil pressure 3 91
Engine oil level monitor
3 86Y oLow fuel 3 92W oEngine coolant temperature
high 3 91DAutostop 3 928Exterior light 3 929Low beam 3 92CHigh beam 3 92fHigh beam assist 3 92>Fog light 3 92øRear fog light 3 92
3 93hDoor open 3 93
Page 93 of 259

Instruments and controls91Engine coolant temperature
o illuminates red.
Illuminates when the engine is
running
Stop, switch off engine.Caution
Coolant temperature too high.
Check coolant level immediately
3 189.
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.
Diesel particle filter % or H illuminates yellow.
The diesel particle filter requires
cleaning.
Continue driving until the control
indicator extinguishes.
Illuminates temporarily Start of saturation of the particle filter.
Start cleaning process as soon as possible by driving at a vehicle speed
of at least 40 mph.
Illuminates constantlyIndication of a low additive level. Seek
the assistance of a workshop.
Diesel particle filter 3 138.
AdBlue Y flashes or illuminates yellow.
Illuminates yellow
The remaining driving range is
between 370 mph and 1500 mph.
Have the AdBlue® topped-up as soon as possible by a qualified workshop.
You can add up to 10 l of AdBlue® to
its tank.Flashes yellow
The remaining driving range is
between 0 and 370 mph.
Top-up the AdBlue® as soon as
possible to avoid a breakdown by a
qualified workshop. You can add up
to 10 l of AdBlue® to its tank.
Deflation detection system
w illuminates or flashes yellow.
Illuminates
Tyre pressure loss in one or more
wheels. Stop immediately and check
tyre pressure.
Flashes Fault in system. Consult a workshop.
Engine oil pressure I illuminates red.
Illuminates when the ignition is
switched on and extinguishes shortly
after the engine starts.
Page 119 of 259

Climate control117Climate controlClimate control systems.............117
Heating and ventilation system 117
Air conditioning system ...........118
Electronic climate control system .................................... 121
Auxiliary heater ........................125
Air vents ..................................... 126
Adjustable air vents .................126
Fixed air vents ......................... 127
Maintenance .............................. 127
Air intake ................................. 127
Air conditioning regular operation ................................ 128
Service .................................... 128Climate control systems
Heating and ventilation system
Controls for: ● temperature £
● air distribution l, M and K
● fan speed Z
● demisting and defrosting à
● heated rear window and exterior mirrors b
● heated seats ß
Temperature £
Adjust the temperature by turning
£ to the desired temperature.red area:warmerblue area:colder
Heating will not be fully effective until
the engine has reached normal
operating temperature.
Air distribution l M K
Press:
l:to windscreen and front door
windowsM:to head area and rear seats via
adjustable front air ventsK:to front and rear foot well and
windscreen
Combinations are possible.
Fan speed Z
Adjust the air flow by turning Z to the
desired speed.
to the right:increaseto the left:decrease
Page 121 of 259

Climate control119Heating will not be fully effective until
the engine has reached normal
operating temperature.
Air distribution l M K
Press:l:to windscreen and front door
windowsM:to head area and rear seats via
adjustable front air ventsK:to front and rear foot well and
windscreen
Combinations are possible.
Fan speed Z
Adjust the air flow by turning Z to the
desired speed.
to the right:increaseto the left:decreaseAir 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 3 135.
Demisting and defrosting the
windows à
● Press à: the air distribution is
directed towards the windscreen.
● Set temperature controller £ to
warmest level.
● Switch on air conditioning A/C if
required.
● Set fan speed Z to highest level.
● Switch on heated rear window b.
Page 125 of 259

Climate control123Air distribution l, M , K
Press MENU to enter the menu.
Touch (in the Colour Info Display):
l:to windscreen and front door
windowsM:to head area and rear seats via
adjustable air ventsK:to front and rear foot well and
windscreen
To return to automatic air distribution,
press AUTO .
Temperature preselection £
Set the preselected temperatures
separately for driver and front
passenger to the desired value using
the left and right control dials. The dial on the passenger side changes the
temperature for the passenger side.
The dial on the driver's side changes
the temperature for the driver's side or
for both sides depending on
activation of synchronisation MONO
in the climate settings menu. Press
MENU to enter the menu.
Recommended temperature is 22 °C .
Temperature is indicated in displays
beside the control dials and in the
climate settings menu.
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.
Notice
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 3 135.
Dual zone temperature
synchronisation MONO or SYNC
Press MENU to enter the menu.
Touch MONO or SYNC to link
passenger side temperature setting
to the driver side.
When passenger side control dial will be adjusted, synchronisation is
deactivated.
Page 130 of 259
128Climate controlareas with high dust levels or which
are sensitive to environmental
allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced air flow, windows
fogging up, or odors.
Your dealer can help to determine
when it is the right time to replace the
filter.
Air conditioning regularoperation
In order to ensure continuously
efficient performance, cooling must
be operated for a few minutes once a month, irrespective of the weather
and time of year. Operation with
cooling is not possible when the
outside temperature is too low.
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 check
● cabin air filter check