Page 146 of 321

144Climate controlClimate controlClimate control systems.............144
Air conditioning system ...........144
Electronic climate control system .................................... 147
Auxiliary heater ........................153
Air vents ..................................... 153
Adjustable air vents .................153
Fixed air vents ......................... 154
Maintenance .............................. 154
Air intake ................................. 154
Air conditioning regular operation ................................ 155
Service .................................... 155Climate 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 ",x and y
● Air conditioning A/C
● Demisting and defrosting á
● Air recirculation n
● External air (
● 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 E 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.
Page 147 of 321

Climate control145Air distribution ",x and y
Press:":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 3 161.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.
Page 148 of 321

146Climate control● Open side air vents as requiredand direct them towards the doorwindows.
● For maximum demisting and defrosting set fan speed to
highest level.
Notice
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 3 161.
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 ( 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 (
Press
(to activate external air
mode, LED is indicated.
Press n to activate air recirculation
mode. External air mode is
deactivated.
Page 150 of 321

148Climate controlControls for:● rotary knob for temperature on driver side
● rotary knob 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 A/C
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 3 117.
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.
Page 152 of 321

150Climate controlTemperature preselection
Set the preselected temperatures
separately for driver and front
passenger to the desired value using
the left and right rotary knob. 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 rotary knobs 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.
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 3 161.
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 settings will be adjusted, synchronisation is
deactivated and the LED
extinguishes.Air conditioning A/C
Press Climate to enter the menu and
select the touch button A/C to switch
air conditioning on or 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 154 of 321
152Climate control● Switch on heatedwindscreen , if available.
● To return to previous mode press
à again, to return to automatic
mode press AUTO.
Notice
If à is pressed while the engine is
running, an Autostop will be inhibited until à is pressed again.
If à is pressed while the engine is in
an Autostop, the engine will restart
automatically.
Stop-start system 3 161.Deactivation or activation of
Electronic climate control system
ON/OFF
Cooling, fan and automatic mode can
be switched off by pressing ON/OFF.
When the system is deactivated, the
LED in the button ON/OFF is not
illuminated.
Activation by pressing ON/OFF again
or AUTO . The LED in the button
illuminates to indicate activation.
Version with heated
windscreen ,
If the vehicle is equipped with heated
windscreen, button ON/OFF is
replaced by button ,.
Climate control system will then
switched off by button â. Switch on
by pressing (.
Page 156 of 321
154Climate control
Illustration shows outer air vents in
instrument panel.
Illustration shows air vents for rear
passenger.
Direct the flow of air by tilting and
swivelling the slats.
To close the vent, swivel the slat
sideways.9 Warning
Do not attach any objects to the
slats of the air vents. Risk of
damage and injury in case of an
accident.
Fixed air vents
Additional air vents are located
beneath the windscreen and door windows and in the foot wells.
Maintenance
Air intake
The air intake in front of the
windscreen in the engine
compartment must be kept clear to
allow air intake. Remove any leaves,
dirt or snow.
Cabin air filter
Change filter regulary for maximum
effect.
Page 158 of 321

156Driving and operatingDriving and
operatingDriving hints ............................... 157
Control of the vehicle ...............157
Steering ................................... 157
Starting and operating ...............157
New vehicle running-in ............157
Power button ........................... 158
Retained power off ..................159
Starting the engine ..................159
Overrun cut-off ........................ 161
Stop-start system ....................161
Parking .................................... 163
Engine exhaust .......................... 164
Exhaust filter ............................ 164
Catalytic converter ...................165
AdBlue ..................................... 166
Automatic transmission ..............168
Transmission display ...............168
Gear selection ......................... 169
Manual mode ........................... 170
Electronic driving programmes 171
Fault ........................................ 172
Interruption of power supply ....172
Manual transmission ..................173Drive systems ............................ 173
All-wheel drive ......................... 173
Brakes ........................................ 174
Antilock brake system .............174
Parking brake .......................... 175
Brake assist ............................. 176
Hill start assist ......................... 176
Ride control systems .................177
Traction Control system ..........177
Electronic Stability Control ......178
Interactive driving system ........179
Driver assistance systems .........181
Cruise control .......................... 181
Speed limiter ........................... 183
Adaptive cruise control ............184
Forward collision alert .............195
Following distance indication ...198
Active emergency braking .......199
Front pedestrian protection .....202
Parking assist .......................... 204
Side blind spot alert .................211
Lane change alert ....................212
Panoramic view system ...........214
Rear view camera ...................216
Rear cross traffic alert .............218
Traffic sign assistant ................219
Lane keep assist .....................223
Fuel ............................................ 226
Fuel for petrol engines .............226Fuel for diesel engines ............227
Refuelling ................................ 228
Trailer hitch ................................ 230
General information .................230
Driving characteristics and towing tips .............................. 230
Trailer towing ........................... 230
Towing equipment ...................231
Trailer stability assist ...............233