118Climate controlCooling A/C
The air conditioning system cools and
dehumidifies (dries) the air when
outside temperature is above a
specific level. Therefore
condensation may form and drip from under the vehicle.
Notice
Air conditioning performance is
reduced when ECO mode has been
activated 3 127.
If no cooling or drying is required
press A/C OFF to switch the cooling
system off, thus saving fuel. LED
illuminates in the button.
To return to Automatic mode: Press
AUTO button.
Air recirculation mode u
Activate or deactivate manual air recirculation mode with u. LED
illuminates in the button when
activated.9 Warning
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.
Climate control119Rear 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 engine-independent, fuel-
powered coolant heater provides
rapid heating of the engine coolant to
enable heating of the vehicle interior
without the engine running.9 Warning
Do not operate the system when
refuelling, when dust or
combustible vapours are present
or in enclosed spaces (e.g.
garage).
Before starting or programming the
system to start, turn the vehicle's
climate control system to heat, set the
air distribution to V and turn the fan
on.
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 control121Additional remote control units may
also be configured. Press the button
until LED flashes, switch on the
remote control, select Add and
confirm.
AddE teaches the current remote
control unit exclusively and blocks all
previously configured units. Add
teaches up to four remote control
units, but only one unit can operate the system at any one time.
Remote control (Type B)1 Display:Displays preset, current
time or preset time,
temperature, Z, Ü , Y ,
Ö and x2 l:Adjusts values up3
OFF:Switch heater off, or press
Y and OFF simultaneously
to confirm selection4 Y:Switch heater on, or press Y
and OFF simultaneously to
confirm selection5 k:Adjusts values down
If no buttons are pressed within
30 seconds the display automatically
turns off.
9 Warning
When refuelling, switch off the
remote control unit as well as the
heater!
The remote control has a maximum
range of 1000 metres. The range may
be reduced due to environmental
conditions and as the battery
becomes weaker.
Remote control (Type B) fault
displaysZ:poor signal – adjust positionFAIL:error during signal
transmission –
move closer or check heater
fuseÜ:battery low – replace battery
Teach remote control (Type B)
Up to four additional remote control
units may also be configured. During
additional teaching processes, the
oldest transmitter will be deleted each
time.
Remove the heater fuse for
five seconds, then refit the fuse.
Within two - six seconds press OFF
for one second. Teaching is
completed.
If the remote has not been used for a long period, press the OFF button six
times at intervals of two seconds,
then press and hold for another
two seconds, then wait two minutes.
Climate control125Air 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.
130Driving and operatingIf the electronic key is not inside the
vehicle, a corresponding message appears in the Driver Information
Centre 3 100.
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 3 102 and a message in the
Driver Information Centre 3 101).
Notice
In the event the electronic key is kept in the front passenger compartment
and a message appears in the Driver
Information Centre (possibly
accompanied by a warning chime)
indicating that it is out of reception
range, we recommend inserting the
electronic key in the card reader.
Some functions, e.g. Infotainment
system, are available for use as soon
as you enter the vehicle.Accessory power mode
Press START/STOP without
operating clutch or brake pedal to
enable further electrical functions to
be operated.
These functions switch off
automatically after a delay.
Engine start
Operate clutch and brake pedal and press START/STOP . 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 START/STOP to
release the steering wheel lock. A
corresponding message appears in
the Driver Information Centre 3 100.
At very low outside temperatures (e.g. below -10 °C) keep the clutch pedal
depressed while pressing
START/STOP until the engine starts.If one of the starting conditions is not
applied, a corresponding message appears in the Driver Information
Centre 3 100.
Vehicle messages 3 101.
Engine stop
Electronic key must be inside the
vehicle, either in the card reader or
the front passenger compartment.
With the vehicle stationary, press
START/STOP 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 3 100.
In this event, press START/STOP for
two seconds to stop the engine.
Central locking system 3 24.
Retained power off Press START/STOP 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 operating131These 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 3 102 and a message in the
Driver Information Centre 3 101
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 20.
Central locking system 3 24.
Electronic key system 3 22.
Starting the engine
Manual transmission: operate clutch.
Do not accelerate.
Diesel engines: turn the key to
position 2 for preheating until control
indicator ! extinguishes in the
instrument cluster 3 98.
Turn key to position 3 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 0.
During an Autostop, the engine can
be started by depressing the clutch
pedal. Stop-start system 3 133.
Turbo engine warm-up Upon start-up, engine available
torque may be limited for a short time,
especially when the engine
temperature is cold. The limitation is
to allow the lubrication system to fully protect the engine.
132Driving 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.
Notice
When the fast idle function is
activated, the stop-start system is
automatically deactivated.
Stop-start system 3 133.
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 3 100.9 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 2
3 129.
2. Wait a few minutes to allow the fuel system to be reset.
3. Turn key to position 3 to start the
engine.
If the engine does not start, repeat the
procedure.
Resetting with electronic key
system
To reset the fuel cut-off system and
enable the vehicle to be driven:
1. Insert the electronic key in the card reader 3 129.
2. Press START/STOP 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 22.
134Driving and operatingdeactivated automatically, and the
engine is switched off. Restart engine by pressing START/STOP .
Power button 3 129.
Autostop
If the vehicle is at a low speed or at a standstill, activate an Autostop as
follows:
● depress the clutch pedal
● move the selector lever to neutral
● release the clutch pedal
The engine will be switched off while
the ignition stays on if the required
conditions are met.An Autostop is indicated when Ï
illuminates in the instrument cluster
3 99.
During an Autostop, heating and brake performance will be
maintained. Brake assist, however, is
not available 3 145.Caution
The power steering assist may be
reduced during an Autostop.
If you exit the vehicle while the engine
is in an Autostop, a warning chime will
sound and a message " IGNITION
OFF " is displayed in the Driver
Information Centre as a reminder that
the engine is on standby and has not
been switched off.
Conditions for an Autostop
The stop-start system checks if each
of the following conditions is fulfilled,
otherwise an Autostop will be
inhibited and control indicator \ will
illuminate in the instrument cluster:
● 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
● the outside temperature is not too
low or too high (e.g. below 0 °C
or above 30 °C)
● the defrosting function is not activated
● the climate control system does not inhibit an Autostop
● the brake vacuum is sufficient
● the self-cleaning function of the diesel particle filter is not active
3 136
● the Antilock brake system (ABS) 3 144, Traction Control system
(TC) 3 146 and Electronic