Page 105 of 203
Climate control1039Warning
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.
To return to Automatic mode: Press
AUTO button.
Rear heating system
The rear passenger compartment
heating fan assists air flow to the rear
passenger compartment via the rear
air vents.
The rate of air flow is determined by
the fan. Air temperature is controlled
using the temperature control on the
instrument panel.
Rear air conditioning
system
The rear air conditioning system is
actuated in conjunction with the front
passenger compartment air
conditioning system.
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104Climate control
Rear air conditioning fan switch
The rear air conditioning fan assists
air flow to the rear passenger
compartment via the rear air vents.
Switch on the fan while the air
conditioning system is operating to
allow cooled and dehumidified (dried) air to be distributed.
The rate of air flow is determined by
the fan.
Auxiliary heater
Coolant heater The Eberspächer engine-
independent, fuel-powered coolant
heater provides rapid heating of the
engine coolant to enable heating of
the vehicle interior without the engine
running.Caution
Do not touch the exhaust pipe. It
may be hot even after the engine
has been switched off, due to
coolant heater operation.
Before starting or programming the
system to start, turn the vehicle's
climate control system to heat and the
air distribution to V.
9Warning
Do not operate the system when
refuelling, when dust or
combustible vapours are present
or in enclosed spaces (e.g.
garage).
Switch off when not required. Heating stops automatically after the
programmed runtime. It will also
cease to operate if the vehicle fuel
level drops too low.
During operation, power from the
vehicle battery is used. The driving
time should therefore be at least as
long as the heating time. For short
journey times, check the vehicle
battery regularly and recharge if
necessary.
To ensure efficient performance,
briefly operate the auxiliary heater
once a month.
Control units The timer or remote control unit turns
the system on and off, and is used to
programme specific departure times.
Page 107 of 203
Climate control105
Timer1 X
Activation
button=Switches the control
unit on/off and
changes displayed
information2 q Back
button=Selects functions in
the menu bar and
adjusts values3 Menu bar=Displays the
selectable functions
Y , x , P , Ö and Y4 r Next
button=Selects functions in
the menu bar and
adjusts values5 OK button=Confirms selectionRemote control
The control buttons operate
identically to the timer unit described
previously.
To activate the remote control, press activation button X and release it
when the menu bar appears in the display. The signal indicator and
SENd appear briefly in the display,
followed by the temperature.
9 Warning
When refuelling, switch off the
remote control unit as well as the
heater!
To switch off, press and hold
activation button X to prevent
inadvertent operation.
The remote control has a maximum
range of 600 metres. The range may
be reduced due to environmental
conditions and as the battery
becomes weaker.
Page 110 of 203

108Climate controlAir 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.9 Warning
Do not attach any objects to the
slats of the air vents. Risk of
damage and injury in case of an
accident.
Centre air vents
To open or close the centre air vents
and direct the flow of air, tilt the slats
up or down and turn the adjuster
wheel left or right.
Side air vents
To open or close the side air vents, tilt the slats up or down.
Direct the flow of air by rotating the
vents.
Depending upon the position of the
temperature control, air will be
directed into the vehicle via the side
air vents.
Rear air vents
Depending on vehicle, additional
adjustable air vents are located in the
rear passenger compartment.
Fixed air vents
Additional air vents are located
beneath the windscreen and door
windows, in the foot wells and,
depending on vehicle, in the rear passenger compartment.
Glovebox cooler
The air conditioning system can also
keep the contents of the glovebox
cool.
Page 114 of 203

112Driving and operatingIgnition switch positionsSt=Ignition offA=Steering wheel lock released,ignition offM=Ignition on
Diesel engines: preheatingD=StartingPower button
Electronic key must be inside the
vehicle, either in the card reader or
the front passenger compartment.
If the electronic key is not inside the
vehicle, a corresponding message
appears in the Driver Information
Centre 3 88.
Notice
Do not put the electronic key in the
load compartment during driving, as
this is outside of the detection zone
(indicated by a warning chime at low
speed 3 89 and a message in the
Driver Information Centre 3 89).
Some functions, e.g. Infotainment
system, are available for use as soon as you enter the vehicle.
Accessory power mode
Press Start/Stop button without
operating clutch or brake pedal to enable further electrical functions to
be operated.
Engine start Operate clutch and brake pedal and
press Start/Stop button. Release
button after starting procedure
begins.
If a gear is engaged, the engine can
be started only by operating the clutch
pedal and pressing the Start/Stop
button.
In some cases, it may be necessary
to move the steering wheel slightly
while pressing the Start/Stop button
to release the steering wheel lock. A
corresponding message appears in
the Driver Information Centre 3 88.
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Driving and operating113
At very low outside temperatures
(e.g. below -10 °C) keep the clutch
pedal depressed while pressing the
Start/Stop button until the engine
starts.
If one of the starting conditions is not
applied, a corresponding message
appears in the Driver Information
Centre 3 88.
Vehicle messages 3 89.
Engine stop Electronic key must be inside the
vehicle, either in the card reader or
the front passenger compartment.
With the vehicle stationary, press the
Start/Stop button to stop the engine.
The steering wheel lock is engaged
when the driver's door is opened and the vehicle is locked.
If the electronic key is not detected, a
corresponding message appears in
the Driver Information Centre 3 88 . In
this event, press the Start/Stop button
for 2 seconds to stop the engine.
Central locking system 3 23.Retained power off
Press the Start/Stop button for more
than two seconds; the engine is
stopped while some functions, e.g.
Infotainment system, are available for
use for approx. 10 minutes.
These functions stop working when
the driver's door is opened and the
vehicle is locked.
Notice
Always take the electronic key with you when exiting the vehicle.
The electronic key being left in the
card reader is indicated by a warning
chime 3 89 and a message in the
Driver Information Centre 3 89 when
the driver's door is opened.9 Danger
Never leave an electronic key
inside the vehicle when children or animals are left in the vehicle, to
avoid unintended operation of
windows, doors or engine. Risk of
fatal injury.
Fault
If the engine cannot be started, the
cause may be one of the following:
■ Fault in electronic key.
■ Electronic key out of reception range.
■ Battery voltage too low.
■ Overload of the central locking system by operating at frequentintervals, the power supply is
interrupted for a short time.
■ Interference from higher-power radio waves from other sources.
Battery replacement 3 19.
Central locking system 3 23.
Electronic key system 3 21.
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Driving and operating115Vehicle shutdown
Fuel cut-off system
If the vehicle runs out of fuel, the fuel system is cut-off and must be reset
after refuelling. A corresponding
warning message may also appear in the Driver Information Centre 3 88.9 Danger
If you can smell fuel in the vehicle,
or a fuel leak is present, have thecause of this remedied
immediately by a workshop. Do
not reset the fuel cut-off system, to avoid the risk of fire.
Resetting with remote control
key / manual key
To reset the fuel cut-off system and
enable the vehicle to be driven:
1. Turn the ignition key to position M
3 112.
2. Wait a few minutes to allow the fuel system to be reset.
3. Turn key to position D to start the
engine.
If the engine does not start, repeat the procedure.
Resetting with electronic keysystem
To reset the fuel cut-off system and
enable the vehicle to be driven:
1. Insert the electronic key in the card reader 3 112.
2. Press the engine start/stop button
without depressing any pedals.
3. Wait a few minutes to allow the fuel system to be reset.
If the engine does not start, repeat the procedure.
Electronic key system 3 21.Power button 3 112.
Refuelling 3 132.
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 restarts the engine
automatically as soon as the clutch pedal is depressed.
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.
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Driving and operating117
■ the self-cleaning function of thediesel particle filter is not active
3 118.
■ the vehicle has moved since the last Autostop.
Otherwise an Autostop will be
inhibited.
Restart of the engine by the
driver
Depress the clutch pedal to restart the
engine.
Control indicator Ï 3 87 extinguishes
in the instrument cluster when the
engine is restarted.
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 vehicle battery is discharged.
■ the engine temperature is too low.
■ the brake vacuum is not sufficient.
■ the vehicle starts to move.
■ the defrosting function is activated 3 101.
If an electrical accessory, e.g. a
portable CD player, is connected to
the power outlet, a brief power drop during engine restart may be
noticeable.
Fault If a fault occurs in the stop-start
system, the LED in button Î
illuminates, and a corresponding
message appears in the Driver
Information Centre 3 88. Seek the
assistance of a workshop.
Vehicle messages 3 89.
Warning chimes 3 89.Parking9 Warning
■ 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 a
downhill slope or uphill slope.
Depress foot brake at the same
time to reduce operating force.
■ Switch off the engine.
■ If the vehicle is on a level surface or uphill slope, engage
first gear. On an uphill slope,
turn the front wheels away from the kerb.
If the vehicle is on a downhill
slope, engage reverse gear.
Turn the front wheels towards
the kerb.
Lock the vehicle 3 23 and activate the
anti-theft locking system 3 32 and
anti-theft alarm system 3 33.