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118Climate control
■Open side air vents as required and
direct them towards door windows.
■ For simultaneous warming of the foot well, set air distribution control
to J.
Air conditioning system
In addition to the heating and
ventilation system, the air
conditioning system has:
n=Cooling4=Air recirculationCooling n
Operated with the n button and is
functional only when the engine and
fan are running.
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 the cooling system off to save
fuel.
Air recirculation system 4
Operated with the 4 button.9Warning
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. The quality
of the passenger compartment air
deteriorates, which may cause the vehicle occupants to feel drowsy.
Air distribution to l: Air recirculation
is deactivated.
Maximum cooling Briefly open the windows so that hot
air can disperse quickly.
■ Cooling n on.
■ Air circulation system 4 on,
■ Set air distribution control to M.
■ Set temperature control to coldest level.
■ Set fan speed to highest level.
■ Open all vents.
Demisting and defrosting the
windows ■ Cooling n on.
■ Set air distribution control to l.
■ Set temperature control to warmest
level.
■ Set fan speed to highest level.
■ Switch on heated rear window Ü.
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Climate control119
■Open side air vents as required and
direct them towards door windows.
■ For simultaneous warming of the foot well, set air distribution control
to J.
Automatic climate control
system
Controls for: ■ Air distribution
■ Temperature
■ Fan speed
n=Cooling4=Air recirculationV=Demisting and defrosting
Heated rear window Ü 3 41.
The preselected temperature is
automatically regulated. In the
automatic mode the fan speed
automatically regulates the air flow.
Automatic mode Basic setting for maximum comfort:
■ Set fan control to A.
■ Set the air distribution control to the
desired setting.
■ Preset temperature to the desired level.
■ Cooling n on.
■ Open all of the air vents.
Air distribution
L=to head area and foot wellM=to head areal=to windscreen and front door
windowsJ=to windscreen, front door
windows and foot wellK=to foot wellIntermediate settings are possible.
Temperature preselection
Set the temperature control to the
required position. Intermediate
settings are possible.
For reasons of comfort, change
temperature only in small increments.
At the end positions, there is no
temperature regulation. The air
conditioning system works with
maximum cooling or heating.
Heating will not be fully effective until
engine has reached normal operating temperature.
Fan speed In the automatic mode A the fan
speed automatically regulates the air
flow. If required the air flow can be
manually adjusted.
Cooling n
Operated with the n button and is
functional only when the engine and
fan are running.
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Climate control121
Heated rear window Ü 3 41.
The preselected temperature is
automatically regulated. In the
automatic mode the fan speed and air distribution automatically regulate the
air flow.
The system can be manually adapted by use of air distribution and air flow
controls.
Data is shown on the Info-Display.
Setting modifications are briefly
shown in the Info-Display,
superimposing over the currently
displayed menu.
The electronic climate control system
is only fully operational when the
engine is running.
Do not cover the sensor on the
instrument panel for correct
operation.
Automatic mode
Basic setting for maximum comfort:
■ Press AUTO button.
■ Open all air vents.
■ Air conditioning on.
■ Set desired temperature.
Temperature preselection Temperatures can be set to the
desired value.
For reasons of comfort, change
temperature only in small increments.
If the minimum temperature is set,
Lo appears in the display and the
electronic climate control system runs at maximum cooling.
If the maximum temperature is set,
Hi appears in the display and the
electronic climate control system runs
at maximum heating.Fan speed
The selected fan speed is indicated
with x and a number in the display.
If the fan is switched off the air
conditioning is also deactivated.
To return to automatic mode: Press
AUTO button.
Demisting and defrosting the
windows
Press the V button. V appears in
the display.
Temperature and air distribution are
set automatically and the fan runs at
a high speed.
To return to automatic mode: press
button V or AUTO .
Switch on heated rear window Ü.
Manual settings in climate menu
Climate control system settings can
be changed via the centre control, the
buttons and the menus shown on the display.
To view the menu, press the centre
control. The Climate menu appears in
the display.
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Climate control123
Air conditioning with the enginenot running When ignition is off, the residual heat
or cooling in the system can be used
for climate control in passenger
compartment.
Press the AUTO button with the
ignition off. Residual air conditioning
on will appear briefly in the display.
Residual climate control can only
operate for a limited period of time. To
cancel, press the AUTO button.
Auxiliary heater Air heater
Quickheat is an electric auxiliary air
heater which automatically warms up
the passenger compartment more
quickly.
Coolant heater
Diesel-engined vehicles have a fuel- powered auxiliary coolant heater
which warms up the engine coolant
when the engine is running.Air vents
Adjustable air vents
At least one air vent must be open
while cooling is on in order to prevent the evaporator from icing up due to
lack of air movement.
Air vents with adjuster wheel
To open or close the vent, turn the
adjuster wheel.
Direct the flow of air by tilting and
swivelling the slats.
Air vents without adjuster wheel
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124Climate control
Open slats and adjust direction of airflow.
To close the vents, direct slats
downwards.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 intakes in front of the
windscreen in the engine
compartment must be kept clear to
allow air intake. Remove any leaves,
dirt or snow.
Pollen filter
The pollen filter cleans dust, soot,
pollen and spores from the air
entering the vehicle through the air
intake.
Air conditioning regular
operation 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 outside
temperature is too low.
Service For optimal cooling performance, it isrecommended that the climate control
system be checked annually, 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
Page 127 of 219

Driving and operating125Driving and operatingDriving hints............................... 125
Starting and operating ...............125
Engine exhaust .......................... 128
Automatic transmission .............. 129
Manual transmission ..................134
Manual transmission automa‐
ted .............................................. 135
Brakes ........................................ 139
Ride control systems .................140
Cruise control ............................. 142
Object detection systems ........... 143
Fuel ............................................ 145
Trailer hitch ................................ 147Driving hints
Control of the vehicleNever 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.
Pedals To ensure the pedal travel is
uninhibited, there must be no mats in
the area of the pedals.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 and the cleaning process of the diesel particle filter may take
place more often. Diesel particle filter 3 128.
Page 128 of 219
126Driving and operatingIgnition switch positions0=Ignition off1=Steering wheel lock released,ignition off2=Ignition on, for diesel engine:
preheating3=StartingStarting the engine
Starting engine with ignition
switch
Operate clutch and brake, automatic
transmission in P or N.
Do not operate accelerator pedal.
Diesel engines: turn the key to
position 2 for preheating until control
indicator ! goes out.
Turn key briefly to position 3 and
release key when engine is running.
Before restarting or to switch off the engine, turn key back to 0.
Starting engine with the
Start/Stop button
The electronic key must be inside the
vehicle. Operate clutch and brake,
automatic transmission in P or N.
Do not operate accelerator pedal.
Diesel engines: press the button
briefly to start preheating, move the
steering wheel slightly to release the
steering wheel lock, wait until control
indicator ! goes out and then press
button for 1 second and release when
the engine is running.
Page 129 of 219

Driving and operating127
To repeat the starting procedure or to
switch off the engine, press the button again.
Starting the vehicle at low
temperatures
The start of the engine without
additional heaters is possible down to -25 °С for diesel engines and -30 °C
for petrol engines. Required is an engine oil with the correct viscosity,
the correct fuel, performed services
and a sufficiently charged battery.
With temperatures below -30 °C the
automatic transmission and the
manual transmission automated
need a warming phase of approx. 5
minutes. The selector lever must be
in position P respectively N.
Overrun cut-off The fuel supply is automatically cut off
during overrun, i.e. when the vehicle
is driven with a gear engaged but
accelerator is released.Parking
■ Do not park the vehicle on an easily
ignitable surface. The high
temperature of the exhaust system
could ignite the surface.
■ Always apply parking brake without
pressing release button. Apply as
firmly as possible on downhill or
uphill slopes. Depress the foot
brake at same time to reduce
operating force.
■ Switch off the engine and ignition. Turn the steering wheel until the
steering wheel lock engages.
■ If the vehicle is on a level surface or
uphill slope, engage first gear or set
the selector lever to P before
switching off the ignition. On an
uphill slope, turn the front wheels
away from the kerb.
If the vehicle is on a downhill slope, engage reverse gear or set theselector lever to P before switchingoff the ignition. Turn the front
wheels towards the kerb.
■ Lock the vehicle and activate the anti-theft locking system and the
anti-theft alarm system.