Page 121 of 217
Climate control119
To switch off window demisting and
defrosting, press button V again,
press AUTO button, adjust fan speed
or air distribution switch.Air vents
Adjustable air vents
At least one air vent must be open
while the cooling A/C is on.
To open and close the vents, turn the
horizontal adjuster wheel to the left or right.
Open air vents when air distribution switch is set to M or L.
The air supply is increased by
switching on the fan.
Control the air temperature at the side
air vents by adjusting the temperature
control switch.
Direct the flow of air by tilting and
swivelling the slats.
9 Warning
Do not attach any objects to the
slats of the air vents. Risk of
damage and injury in case of an
accident.
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120Climate controlFixed air ventsAdditional air vents are located
beneath the windscreen, door
windows and in the front and rear foot
wells.
The area underneath the front seats
must be kept clear, to allow air flow to the rear passenger foot well.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 filterCabin air filtration
A particle filter cleans the cabin air
from dust, soot, pollen and spores.
Active carbon filter
In addition to the particle filter the
active carbon filter reduces odours.
Air conditioning regular
operation In order to ensure continuously
efficient performance, cooling must
be operated for a few minutes once a
week, 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 to annually check the
climate control system, starting
3 years after initial vehicle
registration, including:
■ Functionality and pressure test■ Heating functionality
■ Leakage check
■ Check of drive belts
Page 123 of 217
Climate control121
■ Cleaning of condenser andevaporator drainage
■ Performance check
Page 124 of 217

122Driving and operatingDriving and operatingDriving hints............................... 122
Starting and operating ...............122
Engine exhaust .......................... 127
Automatic transmission .............. 128
Manual transmission ..................132
Drive systems ............................ 133
Brakes ........................................ 135
Ride control systems .................137
Driver assistance systems .........140
Fuel ............................................ 143
Trailer hitch ................................ 146Driving hints
Control of the vehicleNever coast with engine not
running (except during Autostop)
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,
but there will be a controlled reduction
in power steering assist and vehicle
speed is reduced.
Stop-start system 3 124.
Pedals
To ensure the pedal travel is
uninhibited, there must be no mats in the area of the pedals.
Power steering Never leave the steering wheel on full
lock when the vehicle is stationary as this may damage the power steering
pump.
Control indicator 2 3 86.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. Autostop may be inhibited to allow for charging of the
battery.
Diesel particle filter 3 127.
Page 125 of 217

Driving and operating123Ignition switch positionsLOCK=Ignition offACC=Steering wheel lock
released, ignition offON=Ignition on, for diesel
engine: preheatingSTART=StartingStarting the engine
Manual transmission: operate clutch
and brake pedals.
Automatic transmission: operate
brake pedal and move selector lever
to P or N.
Do not operate accelerator pedal.
Diesel engines: turn the key to
position ON for preheating until
control indicator ! extinguishes
3 87.
Turn key briefly to position START
and release. Key returns
automatically to position ON.
Before restarting or to switch off the
engine, turn key back to LOCK.
Start attempts should not last longer
than 15 seconds. If engine does not
start, wait 10 seconds before
repeating starting procedure.
The increased engine speed
automatically returns to normal idling
speed as the engine temperature
rises. Drive at a moderate speed,
especially in cold weather, until
normal engine operating
temperatures have been reached.
During an Autostop, the engine can
be started by depressing the clutch
pedal.
Stop-start system 3 124.
Starting the vehicle at low
temperatures In extremely cold temperatures, i.e.
below -20 °С, it may be necessary to
crank the engine for up to
30 seconds for it to start.
Turn key to position START and hold
until engine starts. Start attempts
should not last longer than
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124Driving and operating
30 seconds. If engine does not start,
wait 10 seconds before repeating starting procedure.
Ensure the engine oil is of the correct
viscosity, the correct fuel is used,
vehicle services are performed
regularly and the battery is sufficiently charged.
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.Stop-start system
The stop-start system helps to save
fuel and to reduce the exhaust
emissions. When conditions allow, it
switches off the engine as soon as the
vehicle is at a low speed or at a
standstill, e.g. at a traffic light or in a
traffic jam. It starts the engine
automatically as soon as the clutch is
depressed. A vehicle battery sensor
ensures that an Autostop is only
performed if the vehicle battery is
sufficiently charged for a restart.
Activation
The stop-start system is available as
soon as the engine is started, the
vehicle starts-off and the conditions
as stated below in this section are
fulfilled.Deactivation
Deactivate the stop-start system
manually by pressing the eco button.
The deactivation is indicated when
the LED in the button extinguishes.
Autostop
If the vehicle is at a low speed or at a
standstill, activate an Autostop as
follows:
■ Depress the clutch pedal
■ set the lever to neutral
■ release the clutch pedal
The engine will be switched off while
the ignition stays on.
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Driving and operating125
An Autostop is indicated by the
needle at the AUTOSTOP position in
the tachometer.
During an Autostop, the heating, power steering and brake
performance will be maintained.
Air conditioning system may or may
not inhibit the stop-start system
according to the cooling performance.
Caution
The steering assist can be
reduced during an Autostop.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled.
■ The stop-start system is not manually deactivated
■ the bonnet is fully closed
■ the driver's door is closed or the driver's seat belt is fastened
■ the vehicle battery is sufficiently charged and in good condition
■ the engine is warmed up
■ the engine coolant temperature is not too high or low
■ the engine exhaust temperature is not too high, e.g. after driving with
high engine load
■ the ambient temperature is not too low
■ the defrosting function is not activated
■ the climate control system does not
inhibit an engine stop
■ the brake vacuum is sufficient■ the self-cleaning function of the diesel particle filter is not active
■ the vehicle has moved since the last Autostop
Otherwise an Autostop will be
inhibited.
Certain settings of the climate control
system may inhibit an Autostop. See
Climate control chapter for more
details 3 116.
Immediately after motorway driving
an Autostop may be inhibited.
New vehicle running-in 3 122.
Vehicle battery discharge protection
To ensure reliable engine restarts, several vehicle battery discharge
protection features are implemented
as part of the stop-start system.
Restart of the engine by the
driver
Depress the clutch pedal to restart the
engine.
The engine start is indicated by the
needle at the idle speed position in
the tachometer.
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126Driving and operating
If the selector lever is shifted out of
neutral before depressing the clutch
first, control indicator - illuminates.
Control indicator - 3 89.
Restart of the engine by the
stop-start system
The selector lever must be in neutral to enable an automatic restart.
If one of the following conditions occurs during an Autostop, the
engine will be restarted automatically
by the stop-start system.
■ The stop-start system is manually deactivated
■ the bonnet is opened
■ the driver's seat belt is unfastened and the driver's door is opened
■ the engine temperature is too low
■ the charging level of the vehicle battery is below a defined level
■ the brake vacuum is not sufficient
■ the vehicle is driven at least at walking speed
■ the defrosting function is activated■ the climate control system requests
an engine start
■ the air conditioning is manually switched on
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop
during restart might be noticeable.
Parking ■ Do not park the vehicle on an easily
ignitable surface. The high
temperature of the exhaust system
could ignite the surface.
■ Always apply the electrical parking brake.
Pull switch m.
For maximum force, e.g. parking
with a trailer or on inclines, pull
switch m twice.
■ Switch off the engine and turn the ignition key to position LOCK, push
key into ignition switch and remove.
Turn the steering wheel until the
steering wheel lock is felt to
engage.For vehicles with automatic
transmission, depress foot brake
and shift into P before pushing key
into ignition switch and removing.
■ If the vehicle is on a level surface or
uphill slope, engage first gear ormove 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 move the
selector lever to P before switching
off the ignition. Turn the front
wheels towards the kerb.
■ Lock the vehicle with button p on
the radio remote control 3 20 and
activate the anti-theft alarm system 3 24.