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Climate control151Temperature 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.
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 3 162.
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.
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152Climate controlManual air recirculation n
Press n to activate the air
recirculation mode. The LED in the
button illuminates to indicate
activation.
Press n again to deactivate
recirculation mode.
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.
Automatic air recirculation
An air humidity sensor switches
automatically to external air if internal air humidity is too high.
Demisting and defrosting the
windows à
● Press à. The LED in the button
illuminates to indicate activation.
● Temperature and air distribution are set automatically and the fan
runs at high speed.
● Activate air condition: Press CLIMATE to show climate control
menu in the Info Display, then
select A/C.
● Switch on heated rear window b.
Page 155 of 323
Climate control153● Switch on heatedwindscreen , if available.
● To return to previous mode press
à again, to return to automatic
mode press AUTO.
Note
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 3 162.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 323
154Climate 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 3 124.
Heated rear window and exterior
mirrors b 3 42.
Heated windscreen , 3 42.
Heated seats q 3 54.
Ventilated seats r 3 54.Auxiliary 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.
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Climate control155
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 323
156Climate controlAir 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
Page 159 of 323

Driving and operating157Driving and
operatingDriving hints ............................... 158
Control of the vehicle ...............158
Steering ................................... 158
Starting and operating ...............158
New vehicle running-in ............158
Power button ........................... 159
Retained power off ..................160
Starting the engine ..................160
Overrun cut-off ........................ 162
Stop-start system ....................162
Parking .................................... 164
Engine exhaust .......................... 165
Exhaust filter ............................ 165
Catalytic converter ...................166
AdBlue ..................................... 167
Automatic transmission ..............169
Transmission display ...............169
Gear selection ......................... 170
Manual mode ........................... 171
Electronic driving programmes 172
Fault ........................................ 173
Interruption of power supply ....173
Manual transmission ..................174Drive systems ............................ 174
All-wheel drive ......................... 174
Brakes ........................................ 175
Antilock brake system .............175
Parking brake .......................... 176
Brake assist ............................. 177
Hill start assist ......................... 177
Ride control systems .................178
Traction Control system ..........178
Electronic Stability Control ......179
Interactive driving system ........180
Driver assistance systems .........182
Cruise control .......................... 182
Speed limiter ........................... 184
Adaptive cruise control ............185
Forward collision alert .............196
Following distance indication ...199
Active emergency braking .......200
Front pedestrian protection .....203
Parking assist .......................... 205
Side blind spot alert .................212
Lane change alert ....................213
Panoramic view system ...........215
Rear view camera ...................217
Rear cross traffic alert .............219
Traffic sign assistant ................220
Lane keep assist .....................224
Fuel ............................................ 227
Fuel for petrol engines .............227Fuel for diesel engines ............228
Refuelling ................................ 229
Trailer hitch ................................ 231
General information .................231
Driving characteristics and towing tips .............................. 231
Trailer towing ........................... 231
Towing equipment ...................232
Trailer stability assist ...............234
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158Driving and operatingDriving hints
Control of the vehicle
Never coast with engine not
running
Many systems will not function in this situation ( e.g. brake servo unit, power
steering). Driving in this manner is a
danger to yourself and others.
All systems function during an
Autostop.
Stop-start system 3 162.
Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in the area of the pedals.
Use only floor mats, which fit properly
and are fixed by the retainers on the
driver side.Steering
If power steering assist is lost
because the engine stops or due to a system malfunction, the vehicle can
be steered but may require increased
effort.Starting and operating
New vehicle running-in Do not brake unnecessarily hard for
the first few journeys.
During the first drive, smoke may
occur because of wax and oil
evaporating off the exhaust system.
Park the vehicle in the open for a
while after the first drive and avoid
inhaling the fumes.
During the running-in period, fuel and engine oil consumption may be
higher.
Additionally, the cleaning process of
the exhaust filter may take place more
often.
Exhaust filter 3 165.