159
Air conditioning
Some Climatronic controls may also be on the air conditioner control panel
located in the rear centre console. These controls are used to make the ap-
propriate settings for the rear seats.
Control but- tonAdditional information. Electronic manual air conditioning
⇒ Fig. 122; Climatronic ⇒ Fig. 123.
1 Temper-
ature
...
Electronic manual air conditioning : Rotate the control to ad-
just the temperature accordingly. In the position AC
MAX , the
cooling output will be set to maximum. The air recirculation
mode and the cooling system are automatically switched on.
Climatronic: The left and right sides can be adjusted sepa-
rately. Rotate the control to adjust the temperature accord-
ingly.
2 Fan
Electronic manual air conditioning : Setting 0: Air fan and air
conditioning system (manual) switched off, setting 4: Maxi-
mum setting of fan.
Climatronic: The power of the fan is automatically adjusted.
Rotate the control to manually adjust the fan.
3 Air dis-
tribution
Electronic manual air conditioning : Rotate the continuous
control to direct the airflow to the desired area.
Climatronic: The airflow will be automatically adjusted to a
comfortable flow. It can also be switched on manually with
the buttons 3
.
4Climatronic: Display of the selected interior temperature for
the left and right sides.
Electronic manual air conditioning
: Defrost function. The air-
flow is directed at the windscreen. In this position, air recir-
culation is automatically switched off or is not switched on.
Increase the fan power to clear the windscreen of condensa-
tion as soon as possible. To dry the air the cooling system
will automatically switch on.
Control but- tonAdditional information. Electronic manual air conditioning
⇒ Fig. 122; Climatronic ⇒ Fig. 123.
Climatronic: Defrost function. The air drawn in from outside
the vehicle is directed at the windscreen and air recirculation
is automatically switched off. To defrost the windscreen more
quickly, the air is dehumidified at temperatures over approxi-
mately +3 °C (+38 °F) and the fan runs at maximum output.
The air is directed at the chest of driver and passengers by
the dash panel air vents.
Air distribution towards the footwell.
Electronic manual air conditioning : Air distribution towards
the windscreen and the footwell.
Climatronic: Upward air distribution.
Heated rear window: Only works when the engine is running
and switches off automatically after a 10 minutes.
Electronic manual air conditioning : Air recirculation
⇒ page 162.
Climatronic: Manual and automatic air recirculation
⇒ page 162.
Instant auxiliary heating on/off button ⇒ page 164.
Buttons for the seat heating ⇒ page 117.
Climatronic: According to the vehicle equipment there may
be a button for the windscreen heating on the air conditioner
control panel. The windscreen heating only works when the
engine is running and switches off automatically after a few
minutes.
Press the button to switch on or off the cooling system.
Safety FirstOperating instructionsPractical tipsTechnical Specifications
160Air conditioning
Control but-
tonAdditional information. Electronic manual air conditioning
⇒ Fig. 122; Climatronic ⇒ Fig. 123.
Climatronic: Accept the temperature selection for the driver
and front passenger sides: When the SYNC button light is lit,
the temperature settings on the driver side also apply to the
passenger side. Press the button or adjust the temperature
control for the passenger side in order to set a different tem-
perature. No lamp lights up on the button.
Climatronic: Automatic temperature, fan, and air distribution
control. Press the button to switch on the function. The con-
trol lamp lights up on the AUTO
button.
Climatronic: Press the button REAR to adjust the air condi-
tioner for the rear seats from the front seats. A lamp is lit in
the REAR
button if the function is activated. The settings for
the rear seats will be displayed. Press the button again to
switch the function off or do not touch any other button for
around 10 seconds.
Climatronic: Press the button REST to use the heat that the
engine radiates. When the engine is still warm but the igni-
tion switched off, the heat given off by the engine can be
used to keep the vehicle interior warm. The REST
button will
light up when the function is switched on. The function will
switch off after around 30 minutes and if the battery level is
low.
a)
Switch off.
Electronic manual air conditioning : Turn the fan switch to
setting 0.
Climatronic: Press the button OFF
or manually set the fan to
0. When the device is switched off the OFF button will light
up.
a) Depending on the version of the model.
WARNING
Never turn off the air fan for a long time or the air in the vehicle interior
will not be refreshed.
● Stuffy or used air will increase fatigue and reduce driver and passen-
ger concentration possibly resulting in a serious accident.
Note
● Not all Climatronic buttons are operational in REAR mode.
● The REAR
button is locked in defrost mode.
Rear operation
Fig. 124 Details of the
rear operation
Control
⇒ Fig. 124Description
ATemperature selectorBAir flow regulator
161
Air conditioning
Air conditioner user instructions
The interior cooling system only works when the engine is running and fan
is switched on.
The air conditioner operates most effectively with the windows and the elec-
tric sliding panoramic roof closed. However, if the vehicle has heated up af-
ter standing in the sun for some time, the air inside can be cooled more
quickly by opening the windows and the sliding electric panoramic sunroof
briefly.
Setting for conditions of optimal visibility
When the air conditioning is switched on, the temperature and the air hu-
midity in the vehicle interior drop. Hence, when the outside air humidity is
high, the windows do not mist over and comfort for the vehicle occupants is
improved:
Electronic manual air conditioning
● Switch off the air recirculation ⇒ page 162.
● Set the fan to the required setting.
● Turn the temperature control to the centre position.
● Open and direct all the air outlets in the dash panel ⇒ page 162.
● Turn the air distribution control to the required position.
With Climatronic
● Press the AUTO
button.
● Set the temperature to +22 °C (+72 °F).
● Open and direct all the air outlets in the dash panel ⇒ page 162.
Climatronic: Switching the measuring units for temperature on the radio
display or the navigation system installed with the default settings
Switching the temperature indication from Celsius to Fahrenheit on the ra-
dio display or the navigation system is carried out in the menu on the in-
strument panel ⇒ page 67. The cooling system does not switch on
If the air conditioning system cannot be switched on, this may be caused by
the following:
●
The engine is not running.
● The fan is switched off.
● The air conditioning fuse is blown.
● The outside temperature is lower than approximately +3 °C (+38 °F).
● The air conditioner compressor has been temporarily switched off be-
cause the engine coolant temperature is too high.
● Another fault in the vehicle. Have the air conditioner checked by a speci-
alised workshop.
Things to note
If the humidity and temperature outside the vehicle are high, condensation
can drip off the vaporiser in the cooling system and form a pool underneath
the vehicle. This is normal and does not indicate a leak!
Note
After starting the engine, any residual humidity in the air conditioner could
mist over the windscreen. Switch on the defrost function as soon as possi-
ble to clear the windscreen of condensation.
Safety FirstOperating instructionsPractical tipsTechnical Specifications
167
Air conditioning
Checking programming
If the timer has been switched on after switching the ignition off, the instant
on button
will remain lit for around ten seconds.
WARNING
Never program the independent heating system to be activated and oper-
ated in closed, unventilated areas. The auxiliary heater fumes contain
carbon dioxide, an odourless and colourless toxic gas. Carbon monoxide
can cause people to lose consciousness. It can also cause death.
Operating instructions
The auxiliary heater exhaust system located below the vehicle must be kept
clear of snow, mud and other objects. The exhaust gases must not be ob-
structed in any way. The exhaust gases generated by the auxiliary heater are
removed via an exhaust pipe fitted underneath the vehicle.
On heating the vehicle interior, depending on the outside temperature the
warm air is first directed at the windscreen and then to the rest of the vehi-
cle interior through the air vents. If the air vents are turned towards the win-
dows, for example, the form of air distribution may be affected.
Depending on the outside temperature, the temperature at which the auxili-
ary heater warms the vehicle interior may be somewhat higher if the heating
or air conditioner temperature control is set to maximum before switching
the heating on.
Depending on the engine, vehicles with auxiliary heater may be fitted with a
second battery in the luggage compartment that is responsible for powering
the auxiliary heater. Cases in which the auxiliary heater will not switch on
●
The auxiliary heater requires about as much power as the dipped beam
headlights. If the battery charge is low, the auxiliary heater will switch off
automatically or will not even switch on. This avoids problems when starting
the engine.
● The heater will switch just once each time. The timer will also have to be
switched back on every time it is required.
Note
● Noise will be heard while the auxiliary heater is running.
● When the air humidity is high and the outside temperature low, the
heating system may evaporate condensation from the auxiliary heater. In
this case, steam may be released from underneath the vehicle. This is com-
pletely normal and there is no need to suspect a fault!
● If the auxiliary heater runs several times over a prolonged period, the ve-
hicle battery may run flat. To re-charge the battery, drive the vehicle for a
long distance. In general: drive for as much time as the auxiliary heating
was working.
Safety FirstOperating instructionsPractical tipsTechnical Specifications
168Driving
Driving
SteeringIntroduction
The power steering is not hydraulic but electromechanical. The advantage
of this steering system is that it disposes of hydraulic tubes, hydraulic oil,
the pump, filter and other components. The electromechanical system
saves fuel. While a hydraulic system requires oil pressure to be maintained,
electromechanical steering only requires energy when the steering wheel is
turned.
With the power steering system, the assisted steering function automatical-
ly adjusts according to the vehicle speed, the steering torque and the wheel
turning angle. The power steering only works when the engine is running.
Additional information and warnings:
● Start and stop the engine ⇒ page 171
● Vehicle battery ⇒ page 291
● Tow starting and towing away ⇒ page 343
WARNING
If the power steering is not working then the steering wheel is much
more difficult to turn and the vehicle more difficult to control.
● The power steering only works when the engine is running.
● Never allow the vehicle to move when the engine is switched off.
● Never remove the key from the ignition if the vehicle is in motion. The
steering may lock and it will not be possible to turn the steering wheel.
Control and warning lamps
lights upPossible causeSolution
(red)Power steering faulty.The steering system should be
checked by a specialised work-
shop as soon as possible.
(yellow)
Power steering operation re-
duced.
The steering system should be
checked by a specialised work-
shop as soon as possible.
If, after restarting the engine
and driving for a short distance,
the yellow warning lamp no lon-
ger comes on, it will not be nec-
essary to take the vehicle to a
specialised workshop.
The vehicle battery was dis-
connected and has been re-
connected.Drive for a short distance at 15 –
20 km/h (10 to 12 mph).
169
Driving
flashesPossible causeSolution
(red)Fault in the steering column
electronic lock. Do not drive on!
Seek professional advice.
(yellow)
Steering column deviation.Gently turn the steering wheel to
and fro.
Steering wheel not unlocked
or locked.
Remove the key from the igni-
tion and then switch the ignition
back on. Check the messages
displayed on the instrument
panel at the same time.
Do not drive on, if the steering
column remains locked after the
ignition has been switched on.
You should obtain professional
assistance.
Several warning and control lamps should light up for a few seconds when
the ignition is switched on, signalling that the function is being verified.
They will switch off after a few seconds.
WARNING
If the warning lamps and messages are ignored, the vehicle may stall in
traffic, or may cause accidents and severe injuries.
● Never ignore the warning lamps or text messages.
● Stop the vehicle safely as soon as possible.
CAUTION
Failure to heed the control lamps and text messages when they appear may
result in faults in the vehicle. Information on the steering
Steering column electronic lock
If the driver door is opened before the ignition is switched off, the steering
column electronic lock is activated via the ignition key or the sensor built
into the door handle.
Mechanical steering lock
To prevent theft, we recommend you lock the steering before leaving the ve-
hicle.
Please engage steering lockUnlocking the steeringParking the vehicle
⇒ page 184.Turn the steering wheel slightly to
release the steering lock.
Remove the key from the ignition.Insert the key in the ignition lock.Turn the steering wheel slightly until
you hear the steering lock.Hold the steering wheel in this posi-
tion and switch on the ignition.
Electromechanical power steering
With the power steering system, the assisted steering function automatical-
ly adjusts according to the vehicle speed, the steering torque and the wheel
turning angle. The power steering only works when the engine is running.
You should remember that you will need considerably more power than nor-
mal to steer the vehicle if the power steering is not working correctly or not
at all.
Counter steering assistance system
The counter steering assistance system helps the driver in critical situa-
tions. Additional steering power helps the driver when counter steering.
Safety FirstOperating instructionsPractical tipsTechnical Specifications
171
Driving
Stopping and starting the engine Introduction
Immobiliser display
When an invalid key is used or in the event of a system fault, or Immo-
biliser on is displayed on the instrument panel. The engine cannot be star- ted.
Pushing or towing
For technical reasons, the vehicle must not be push- or tow-started. Jump
starting is preferable.
Additional information and warnings:
● Vehicle key set ⇒ page 71
● Changing gear ⇒ page 175
● Braking, stopping and parking ⇒ page 184
● Steering ⇒ page 168
● Start assist systems ⇒ page 195
● Refuelling ⇒ page 267
● Fuel ⇒ page 270
● Emergency locking and unlocking ⇒ page 317
● Jump starting ⇒ page 340
● Tow starting and towing away ⇒ page 343
WARNING
Turning off the engine while driving will make stopping the vehicle diffi-
cult; this could even result in the loss of control causing an accident with
serious consequences.
● The assisted braking and steering systems, the airbag system, seat
belts and certain safety equipment are only active while the engine is
running.
● The engine should only be switched off when the vehicle is at a
standstill.
WARNING
While the engine is running or starting it could help reduce the risk of se-
rious injury.
● Never start or leave the engine running in poorly ventilated or closed
spaces. Exhaust gas contains carbon monoxide, a toxic, colourless and
odourless gas. Carbon monoxide can cause people to lose conscious-
ness. It can also cause death.
● Never leave the vehicle unattended if the engine is running. The vehi-
cle could move off suddenly or something unexpected could happen re-
sulting in damage and serious injury.
● Never use start boosters. Cold start sprays could explode or increase
the engine speed unexpectedly.
Safety FirstOperating instructionsPractical tipsTechnical Specifications
172Driving
WARNING
The components of the exhaust system reach very high temperatures.
This could cause a fire and considerable damage.
● Always park your vehicle so that no part of the exhaust system can
come in contact with flammable materials (such as wood, leaves, spilled
fuel, dried grass, etc).
● Do not apply additional underseal or anti-corrosion coatings to the
exhaust pipes, catalytic converter, heat shields or the diesel particulate
filter.
Ignition lock
Fig. 128 Vehicle key positions
Car keys ⇒ Fig. 128 No key in the ignition lock: The steering lock may be activated.0Ignition off, all electrical components disconnected. Key can be re-
moved from the vehicle.
Car keys ⇒ Fig. 1281Ignition is switched on. Pre-heating of diesel engine. The steering
lock can be unlocked.
2Switch on the engine. Release the key when the engine has star-
ted. When it is released, the key returns to position 1.