102Climate 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.
Climate control103
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.
106Climate 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.
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.
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, in the foot wells and,
depending on vehicle, in the rear passenger compartment.
110Driving and operatingPower 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 86.
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 87 and a message in the
Driver Information Centre 3 87).
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 86.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 86.
Vehicle messages 3 87.
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.
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.
Driving and operating111
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 87 and a message in the
Driver Information Centre 3 87 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.
Starting the engine
Manual transmission: operate clutch.
Do not accelerate.
Diesel engines: turn the key to
position M for preheating until control
indicator ! extinguishes in the
instrument cluster 3 84.
Turn key to position D and release.
The increased engine speed
automatically returns to normal idling
speed as the engine temperature
rises.
Start attempts should not last longer
than 15 seconds. If engine does not
start, wait 15 seconds before
repeating starting procedure. If
necessary, depress accelerator
before repeating starting procedure.
Before restarting or to switch off the
engine, turn key back to St.
112Driving and operatingIdle speed control
To increase the idle speed, press theswitch. After a few seconds the
function will be activated.
The function will be deactivated
when:
■ The clutch pedal is depressed
■ The accelerator pedal is depressed
■ Vehicle speed is above 0 mph
■ Control indicator F, W or C
illuminate in the instrument cluster
To increase or decrease the fast idle
speed rate, consult a workshop.
Vehicle 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 86.9 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
3 109.
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 3 110.
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.
114Driving and operating
During an Autostop, brake
performance will be maintained.
However, brake assist is not available
3 118.
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 and 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.
■ the outside temperature is not too low or too high (e.g. below 0 °C orabove 30 °C).
■ the brake vacuum is sufficient.
■ the defrosting function is not activated 3 99.■ the self-cleaning function of the
diesel particle filter is not active
3 115.
■ 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 85 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 driver's seat belt is unfastened and the driver's door 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 99.
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 86. Seek the
assistance of a workshop.
Vehicle messages 3 87.
Warning chimes 3 87.
Driving and operating117Brakes
The brake system comprises two
independent brake circuits.
If a brake circuit fails, the vehicle can
still be braked using the other brake
circuit. However, braking effect is
achieved only when you depress the
brake pedal firmly. You need to use
considerably more force for this. The
braking distance is extended. Seek
the assistance of a workshop before
continuing your journey.
When the engine is not running, the
support of the brake servo unit
disappears once the brake pedal has
been depressed once or twice.
Braking effect is not reduced, but
braking requires significantly greater
force. It is especially important to bear this in mind when being towed.
If control indicator R illuminates in
the instrument cluster while driving and a corresponding message
appears in the Driver Information
Centre, there is a fault in the braking
system. Seek the assistance of a
workshop immediately.Control indicator R 3 83.
Vehicle messages 3 87.
Antilock brake system Antilock brake system (ABS)
prevents the wheels from locking.
ABS starts to regulate brake pressure as soon as a wheel shows a tendency
to lock. The vehicle remains
steerable, even during hard braking.
ABS control is made apparent
through a pulse in the brake pedal
and the noise of the regulation
process.
For optimum braking, keep the brake
pedal fully depressed throughout the
braking process, despite the fact that
the pedal is pulsating. Do not reduce
the pressure on the pedal.
Control indicator u 3 83.
Fault If control indicator u does not go out
a few seconds after the ignition is
switched on, or if it illuminates while driving, there is a fault in the ABS.
Control indicator F 3 82 may alsoilluminate in the instrument cluster
together with a corresponding
message in the Driver Information
Centre. The brake system remains
operational but without ABS
regulation.9 Warning
If there is a fault in the ABS, the
wheels may be liable to lock due
to braking that is heavier than
normal. The advantages of ABS are no longer available. During
hard braking, the vehicle can no longer be steered and may
swerve.
If control indicators u, F , R 3 83
and C 3 82 illuminate, the ABS and
ESP are deactivated and a
corresponding message appears in
the Driver Information Centre. Have
the cause of the fault remedied by a
workshop.
Vehicle messages 3 87.