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Climate control139Climate controlClimate control systems.............139
Air conditioning system ...........139
Electronic climate control system .................................... 142
Auxiliary heater ........................148
Air vents ..................................... 148
Adjustable air vents .................148
Fixed air vents ......................... 149
Maintenance .............................. 149
Air intake ................................. 149
Air conditioning regular operation ................................ 150
Service .................................... 150Climate control systems
Air conditioning system
Illustration shows functions which
may not be available for your
particular vehicle.
Controls for: ● Fan speed Z
● Temperature TEMP
● Air distribution l, M and K
● Air conditioning A/C
● Demisting and defrosting á
● Air recirculation 4
● 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 Z
Adjust the air flow by turning Z to the
desired speed.to the right:increaseto the left: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.
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140Climate controlAir distribution l M K
Press: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
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 3 156.
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.
● Open side air vents as required and 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 3 156.
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Climate control143Controls for:● Control dial for temperature on driver side
● Control dial 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 4
● Demisting and defrosting à
● Heated rear window and exterior mirrors b
● Heated windscreen ,
● Heated seats ß
● Ventilated seats A
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 l, M , K
● Fan speed Z
● Temperature for driver and passenger side 23°/25°
● Dual zone temperature synchronisation SYNC
● Air conditioning ON/OFF
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 ã in the
Info-Display 3 110.
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.
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Climate control145Temperature 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.
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 3 156.
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 149 of 301
Climate control147● 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 3 156.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 151 of 301
Climate control149
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 153 of 301

Driving and operating151Driving and
operatingDriving hints ............................... 152
Control of the vehicle ...............152
Steering ................................... 152
Starting and operating ...............152
New vehicle running-in ............152
Power button ........................... 153
Retained power off ..................154
Starting the engine ..................154
Overrun cut-off ........................ 155
Stop-start system ....................156
Parking .................................... 158
Engine exhaust .......................... 159
Diesel particle filter ..................159
Catalytic converter ...................160
AdBlue ..................................... 161
Automatic transmission ..............164
Manual transmission ..................168
Drive systems ............................ 169
All-wheel drive ......................... 169
Brakes ........................................ 169
Antilock brake system .............169
Parking brake .......................... 170Brake assist............................. 171
Hill start assist ......................... 172
Ride control systems .................172
Traction Control system ..........172
Electronic Stability Control ......173
Interactive driving system ........174
Driver assistance systems .........177
Cruise control .......................... 177
Speed limiter ........................... 179
Adaptive cruise control ............180
Forward collision alert .............188
Following distance indication ...191
Active emergency braking .......192
Front pedestrian protection .....195
Parking assist .......................... 197
Side blind zone assistant .........205
Lane change alert ....................206
Panoramic view system ...........208
Rear view camera ...................211
Rear cross traffic alert .............213
Traffic sign assistant ................214
Lane keep assist .....................218
Fuel ............................................ 220
Fuel for petrol engines .............220
Fuel for diesel engines ............221
Refuelling ................................ 221
Fuel consumption - CO 2-
Emissions .............................. 223Trailer hitch................................ 224
General information .................224
Driving characteristics and towing tips .............................. 224
Trailer towing ........................... 224
Towing equipment ...................225
Trailer stability assist ...............227
Page 154 of 301

152Driving 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 3 156.
Idle boost
If charging of the vehicle battery is
required due to battery condition, the
power output of the generator must
be increased. This will be achieved by an idle boost which may be audible.
A message appears in the Driver
Information Centre.
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 diesel particle filter may take
place more often.
Diesel particle filter 3 159.
Autostop may be inhibited to allow for
charging of the vehicle battery.