WARNING
You should not leave recirculated air mode on over a longer period of time, as
“stale ” air may result in fatigue in the driver and occupants, divert your atten-
tion and also cause the windows to mist up. The risk of having an accident in-
creases. Switch recirculated air mode off as soon as the windows begin mist-
ing up.
Climatronic (automatic air conditioning) Description The Climatronic system is an automatic heating, fresh air and cool-
ing system which provides optimal comfort for the occupants of the
car.
The Climatronic maintains fully automatically a convenience temperature. This is
achieved by automatically varying the temperature of the outflowing air, the
blower stages and the air distribution. The system also takes into account sun-
light which eliminates the need to alter the settings manually. The automatic
mode
⇒
page 92 ensures maximum well-being of the occupants at all times of
the year.
Description of Climatronic system
The cooling operates only if the following conditions are met:
● engine running,
● outside temperature above approx. +2 °C,
● AC switched on.
The AC compressor is switched off at a high coolant temperature in order to pro-
vide cooling at a high load of the engine.
Recommended setting for all periods of the year:
● Set the desired temperature, we recommend 22 °C.
● Press the button AUTO
⇒ fig. 95 .
● Move the air outlet vents 3 and 4 so that the air flow is directed slightly up-
wards. Note
● We recommend that you have Climatronic cleaned by a specialist garage once
every year.
● On vehicles equipped with a factory-fitted radio or radio navigation system,
the information of the Climatronic is also shown on the display. This function can
be switched off, see operating instructions of the radio or the radio navigation
system.
Overview of the control elements The controls enable a separate setting of the temperature for the
left and right side.
Fig. 95 Climatronic: Control elements
The buttons
Defrost windscreen intensively Air flow to the windows
Air flow to head
Air flow in the footwell
Recirculated air mode
with air quality sensor
Rear window heater £
1 2
3
4
5
6 91
Heating and air conditioning system Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data
Recirculated air mode
In recirculated air mode air is sucked out of the interior of the vehi-
cle and then fed back into the interior. When the automatic air dis-
tribution control is switched on, an air quality sensor measures the
concentration of pollutants in the drawn in air.
Recirculated air mode prevents polluted air outside the vehicle from getting into
the vehicle, for example when driving through a tunnel or when standing in a traf-
fic jam. If a considerable increase in concentration of pollutants is recognized by
the air quality sensor, when the automatic air distribution control is switched on,
the air distribution control will temporarily be switched off. If the concentration of
pollutants decreases to the normal level, the air distribution control is automati-
cally switched off so that fresh air can be guided into the vehicle interior.
Switching recirculated air mode on
– Press the button repeatedly until the warning light on the left side of the
button lights up.
Switch on automatic air distribution control
– Press the button repeatedly until the warning light on the right side of the
button lights up.
Switch off automatic air distribution control temporarily
– If the air quality sensor does not switch on the air distribution control auto-
matically when there is a nauseating smell, you can switch it on yourself by
pressing the button . The warning light lights up in the button on the left
side.
Switching recirculated air mode off
– Press the button AUTO or press the button
repetitively, until the warning
lights in the button go out. WARNING
You should not leave recirculated air mode on over a longer period of time, as
“stale ” air may result in fatigue in the driver and occupants, divert your atten-
tion and also cause the windows to mist up. The risk of having an accident in-
creases. Switch recirculated air mode off as soon as the windows begin mist-
ing up. Note
● If the windscreen mists up, press the button
1 ⇒
fig. 95 . After the wind-
screen has been demisted, press the button AUTO .
● The automatic air distribution control operates only if the outside temperature
is higher than approx. 2 °C.
Controlling blower There are a total of seven blower stages available.
The Climatronic system controls the blower stages automatically in line with the
interior temperature. You can also, however, adapt the blower stages manually to
suit your particular needs.
–
Press again the button on the left side (reduce blower speed) or on the
right side (increase blower speed).
If you switch off the blower, the Climatronic is switched off.
The set blower speed is displayed above the button when the respective num-
ber of warning lights come on. WARNING
● “Stale air
” may result in fatigue in the driver and occupants, reduce atten-
tion levels and also cause the windows to mist up. The risk of having an acci-
dent increases.
● Do not switch the Climatronic system off for longer than necessary.
● Switch the Climatronic system on as soon as the windows mist up.
Defrosting windscreen Defrosting windscreen - switching on
– Press the button
⇒ fig. 95 .
Defrosting windscreen - switching off
– Once again press the button or the button
AUTO .
The temperature control is controlled automatically. More air flows out of the air
outlet vents 1. 93
Heating and air conditioning system Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data
Auxiliary heating (auxiliary heating and ventilation)
Description and important information The auxiliary heating (auxiliary heating and ventilation) heats or
supplies the interior of the vehicle with fresh air independent of the
engine.
Auxiliary heating (parking heating)
The auxiliary heater (parking heater) functions in connection with the air-condi-
tioning system or Climatronic.
It can be used when stationary, when engine is switched off for preheating of the
vehicle as well as while driving (e.g. during the heating phase of the engine).
The engine is also preheated when the vehicle is stationary and the engine is
switched off, if the auxiliary heating is switched on.
The auxiliary heating (parking heating) warms up the coolant during the combus-
tion of fuel from the vehicle tank. The coolant warms up the air, which (if the
blower speed is not set to zero) flows into the occupant compartment.
Auxiliary ventilation
The auxiliary ventilation enables fresh air to flow into the vehicle interior by
switching off the engine, whereby the interior temperature is effectively de-
creased (e.g. with the vehicle parked in the sun). WARNING
● The auxiliary heating must never be operated in closed rooms - risk of poi-
soning!
● The auxiliary heating must not be running during refueling - risk of fire.
● The exhaust pipe of the auxiliary heating is located on the underside of
the vehicle. Therefore do not place the vehicle, if you wish to operate the aux-
iliary heating, in such a way that the exhaust gases of the auxiliary heating
can come easily into contact with inflammable materials (e.g. dry grass) or
easily inflammable substances (e.g. fuel run out). Note
If the auxiliary heating runs, the fuel consumption comes from the vehicle tank.
The auxiliary heating automatically controls the filling level in the fuel tank. If only
a low quantity of fuel is present in the fuel tank, the function of the auxiliary heat-
ing is blocked.
● The exhaust pipe of the auxiliary heating, which is located on the underside of
the vehicle, must not be clogged and the exhaust flow must not be blocked.
● If the auxiliary heating and ventilation is running, the vehicle battery discharg-
es. If the auxiliary heating and ventilation has been operated several times over a
longer period, the vehicle must be driven a few kilometers in order to recharge the
vehicle battery.
● The auxiliary heating only switches the blower on, if it has achieved a coolant
temperature of approx. 50 °C.
● At low outside temperatures, this can result in a formation of water vapour in
the area of the engine compartment. This is quite normal and is not an operating
problem.
● After switching off the auxiliary heating, the coolant pump runs for a short pe-
riod.
● The auxiliary heating and ventilation does not switch on or comes on, if the
vehicle battery indicates a low loading state ⇒
page 190, Automatic consumer
shut-off.
● The auxiliary heating (parking heating) does not switch on, if the following was
shown in the information display or before switching off the ignition: Please re-
fuel!
● The air inlet in front of the windscreen must be free of ice, snow or leaves in
order to ensure that the auxiliary heating operates properly.
● So that warm air can flow into the vehicle interior after switching on the auxili-
ary heating, you must maintain the comfort temperature normally selected by you
and leave the air outlet vents in an open position. It is recommended to put the air
flow in the position or . 94
Heating and air conditioning system
Direct switching on/off
Fig. 96 Button for direct switching on/
off of the auxiliary heating (auxiliary
heating and ventilation) on the operat-
ing part of the air conditioning system
The auxiliary heating (auxiliary heating and ventilation) can be switched on or off
directly with the button on the air conditioning system, Climatronic- or heating
⇒ fig. 96 .
If the auxiliary heating and ventilation is not switched off earlier, it switches off
automatically after the expiration of the set operating period, in the menu Run-
ning time.
Using the system So that the auxiliary heating (auxiliary heating and ventilation)
functions according to your expectations, it is necessary to carry
out the basic setting before its programming.
Basic setting
– On the information display, select in the Main menu the menu point Aux. heat-
ing.
– In the menu Aux. heating select the menu point Day of the wk. and set to-
day's date.
– By selecting the menu point Back, you will reach one level higher in the menu
Aux. Heating.
– In the menu Aux.
heating select the menu point Running time and set the de-
sired operating time in steps of 5 minutes. The running time can be 10 to 60
minutes.
– By selecting the menu point Back, you will reach in the menu Aux. heating.
– In the menu Aux.
heating select the menu point Mode. –
In the menu Mode select the desired mode Heating or Ventilation .
Programming For the programming of the auxiliary heating (auxiliary heating and ventilation) in
the menu Aux. heating there are three pre-set times:
● Starting time 1
● Starting time 2
● Starting time 3
In each pre-set time, the day and the time (hour and minute) can be set for
switching on the auxiliary heating and/or ventilation.
An empty position can be found between Sunday and Monday when selecting the
day. If this empty position is selected, the activation is performed without taking
into account the day.
If you leave the pre-set menu by selecting the menu Back or do not make changes
on the display for longer than 10 seconds, the set values are stored, but the pre-
set time is not active.
Both other pre-set times can be programmed and stored in the same way.
Only one programmed pre-set time can be active.
The last programmed pre-set time remains active.
After the auxiliary heating activates at the set time, it is necessary to pre-set a
time again.
Changing the active pre-set time is carried out after selecting the menu point Ac-
tivate in the menu Aux.
heating by selecting a pre-set time.
The prerequisite for the correct switching on of the auxiliary heating (auxiliary
heating and ventilation) according to the programmed pre-set time is the correct
setting of the current time and the weekday ⇒ page 95.
If the system is running, a warning light in the button for direct switching on/off
of the auxiliary heating lights up.
The running system deactivates after expiration of the operating period or is de-
activated earlier by pressing the button for direct switching on/off of the auxiliary
heating
⇒
page 95.
A random pre-set time can be deactivated by selecting the menu point Deactivate
in the menu Activate. £ 95
Heating and air conditioning system Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data
After selecting the menu
Factory setting in the menu Aux. heating, it is possible
to return to the factory setting.
Radio remote control The auxiliary heating (auxiliary heating and ventilation) can be
switched on or off with the remote control. Fig. 97 Auxiliary heating: Radio remote control/bottom of the radio remote control with the
battery cover
–
For switching on, press the button ON .
– For switching off, press the button OFF .
The transmitter and the battery are housed in the housing of the remote control.
The receiver is located in the interior of the car.
If the battery is properly charged, the effective range is up to 600
m. For switching
on or off the auxiliary heating, hold the remote control vertically with the antenna A
⇒ fig. 97 towards the top. You must not cover over the antenna with the fin-
gers or the palm of the hand. Obstacles between the radio remote control and the
vehicle, bad weather conditions and a weaker battery can clearly reduce the
range.
The auxiliary heating can only be switched on or off with the radio remote control,
if the distance between the radio remote control and the vehicle is at least 2 m.
Warning light in the radio remote control
The warning light in the radio remote control ⇒ fig. 97
indicates after a keystroke
if the remote control signal was received by the auxiliary heating and if the bat-
tery is adequately charged. Display warning light Description
Lights up green for 2 seconds. The auxiliary heating was switched on.
Lights up red for 2 seconds. The auxiliary heating was switched off.
Slowly flashes green for 2 seconds. The ignition signal was not received.
Quickly flashes green for 2 seconds. The auxiliary heating is blocked, e. g
because the tank is nearly empty or
there is a fault in the auxiliary heating.
Flashes red for 2 seconds. The switch off signal was not received.
Lights up orange for 2 seconds, then
green or red. The battery is weak, however the
switching on or off signal was received.
Lights up orange for 2 seconds, then
flashes green or red. The battery is weak, however the
switching on or off signal was not re-
ceived.
Flashes orange for 5 seconds. The battery is discharged, however the
switching on or off signal was not re-
ceived. CAUTION
There are electronic components in the radio remote control, protect the remote
control against water, severe shocks and direct sun rays.
Changing the battery of the radio remote control If the warning light of the radio remote control indicates a weak or discharged
battery,
⇒ fig. 97, it must be replaced. The battery is located under a cover on the
back of the radio remote control.
– Insert a flat, blunt object, such as a coin, into the gap of the battery cover, turn
it against the direction of the arrow up to the mark, and unlock the cover
⇒ fig. 97 - right.
– Change the battery, replace the battery cover and lock it by moving it in the
direction of the arrow. For the sake of the environment
Dispose of a used battery in accordance with environmental regulations. £96
Heating and air conditioning system
3
- start engine
Applies to all models:
Position 1 To
lock the steering , with the ignition key withdrawn, turn the steering wheel un-
til the steering locking pin is heard to engage. You should always lock the steering
as a general rule if you leave your vehicle. This acts as a deterrent against possible
theft of your vehicle ⇒ .
Position 2 Move the steering wheel back and forward a little if the ignition key cannot, or
cannot easily be turned into this position, in order to release the steering lock.
Position
3 The engine is started in this position. At the same time switched on low beam or
main beam or other electrical components with major power consumption are
briefly switched off. The ignition key moves back into position
2 when one relea-
ses the key.
The ignition key must be turned back into position 1 each time before starting
the engine again. The starter repeat lock in the ignition lock prevents the starter
being engaged when the engine is running and thus getting damaged.
Ignition key withdrawal lock (automatic gearbox)
You can only withdraw the ignition key after switching off the ignition if the selec-
tor lever is in position P.WARNING
● When driving, the ignition key must always be in the position 2 (ignition
switched on) without the engine running. This position is indicated by the
warning lights coming on. If this is not the case, it could result in unexpected
locking of the steering wheel - risk of accident!
● Only remove the ignition key from the ignition lock when the vehicle has
come to a standstill (by applying the handbrake or moving the selector lever
into the position
P). The steering lock can engage immediately - risk of acci-
dent!
● Always withdraw the ignition key if you are going to leave the vehicle,
even for a short time. This is particularly important if children are left in the
vehicle. The children might otherwise start the engine or switch on electrical
equipment (e.g. power windows) - risk of accident or injury! Starting the engine
General You can only start the engine only using an original ignition key.
Manual gearbox
– Place the gearshift lever into neutral and put on the handbrake firmly before
starting the engine.
– Engage the clutch pedal and keep it depressed until the engine starts.
If you start the engine without depressing the clutch pedal, the engine does not
start and the following message appears in the Information display Depress
clutch! or CLUTCH in the display of the instrument cluster.
– Let go of the key as soon as the engine starts otherwise there may be damage
to the starter.
Automatic gearbox
– Place the gearshift lever into P or N before starting the engine, and apply the
handbrake firmly.
– Let go of the key as soon as the engine starts otherwise there may be damage
to the starter.
The engine running noises may louder at first be louder for a short time after
starting the cold engine until oil pressure can be built up in the hydraulic valve
clearance compensation. This is quite normal and is not an operating problem.
If the engine does not start ...
You can use the battery of another vehicle as a jump-start aid ⇒
page 206. WARNING
● Never run the engine in non ventilated or enclosed areas. The exhaust
gases of the engine contain besides the odorless and colourless carbon mon-
oxide a poisonous gas - hazard! Carbon monoxide can cause unconsciousness
and death.
● Never leave your vehicle unattended with the engine running. £ 99
Starting-off and Driving Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data
The handbrake warning light
lights up when the handbrake is applied, provided
the ignition is on.
A warning signal sounds and the following text appears in the Information display
if you have inadvertently driven off with the handbrake applied:
Release parking brake! (Release parking brake!)
The handbrake warning is activated if you drive at a speed of more than 6 km/h
for more than 3 seconds. WARNING
● Please note that the handbrake must be fully released. A handbrake which
is only partially released can result in the rear brakes overheating which will
have a negative effect on the operation of the brake system - risk of accident!
In addition this can result in premature wear of the rear brake pads.
● Never leave children unattended in the vehicle. The children might, for ex-
ample, release the handbrake or take the vehicle out of gear. The vehicle
might then move off - risk of accident! CAUTION
After the car has come to a stop, always first of all apply the handbrake firmly be-
fore then additionally engaging a gear (manual gearbox) or moving the selector
lever into position P (automatic gearbox).
Rear parking aid The parking aid provides a warning of obstacles behind the vehicle.
Fig. 102 Parking aid: Detection range of
rear sensorsThe audible parking aid determines the distance from the rear bumper to an ob-
stacle behind the car with the aid of ultrasound sensors. The tones of the parking
aid can be adapted in the menu of the Information display
⇒
page 19. The sensors
are integrated in the rear bumper.
Range of sensors
The clearance warning begins at a distance of about 160 cm from the obstacle
(area A ⇒
fig. 102). The interval between the warning signals becomes shorter as
the clearance is reduced.
A continuous tone sounds from a distance of approx. 30 cm (area B ) - danger
area. You should not reverse any further after this signal sounds! If the vehicle is
equipped with a factory-fitted towing device, the indication threshold of the dan-
ger area starts -
continuous tone - 5 cm further behind the vehicle. The vehicle
can be extended through an installed detachable towing device.
On factory-fitted radio navigation systems and car stereos, the distance to the ob-
struction can also be shown graphically in the display. On vehicles with a factory-
fitted towing device, the rear sensors are deactivated when towing a trailer. The
driver is informed about this by a graphic display (vehicle towing a trailer) in the
radio or the radio navigation display. In some factory fitted radios or radio naviga-
tion systems, you can configure the system to reduce the playback volume when
the parking aid is active, see the owner's manual for the radio or radio navigation
system. This makes it easier to hear the parking aid.
Activating
The parking aid is activated automatically when reverse gear is engaged and the
ignition is turned on. This is confirmed by a brief audible signal.
Deactivating
The parking aid is deactivated by removing the reverse gear. £102
Starting-off and Driving
WARNING
● The parking aid is not a substitute for the driver paying proper attention
and it is always the driver's responsibility to take care when parking the vehi-
cle or carrying out similar manoeuvres.
● You should therefore satisfy yourself, before reversing, that there is no
small obstacle, such as a rock, thin post, trailer drawbar etc., behind your vehi-
cle. Such an obstacle might not be within the range detected by the sensors.
● Under certain circumstances, surfaces of certain objects and types of
clothing cannot reflect the signal of the parking aid. Thus, these objects or
people who wear such clothing are not recognised by the sensors of the park-
ing aid. Note
● The parking aid does not operate if you are towing a trailer (applies to models
which feature a factory-fitted towing device).
● If a warning signal sounds for about 3 seconds after switching the ignition on
and engaging reverse gear, and there is no obstacle close to your car, this indi-
cates a system fault. Have the fault rectified by a specialist workshop.
● The sensors must be kept clean and free of ice to enable the parking aid to
operate properly.
Front and rear parking aid The parking aid provides a warning of obstacles in front and behind
the vehicle. Fig. 103 Activating the parking aid/detection range of the front sensors The audible parking aid determines the distance between the front or rear bump-
er and an obstacle with the aid of ultrasound sensors. The sensors are integrated
in the front and rear bumper. The signal tones for the front parking aid sound
higher as standard than for the rear parking aid. The tones of the parking aid can
be adapted in the menu of the Information display ⇒ page 19.
Range of sensors
The distance warning begins at a distance of about 120 cm from the obstacle in
front of the vehicle (area A ⇒
fig. 103) and about 160 cm from the obstacle behind
the vehicle (area A ⇒ fig. 102
). The interval between the warning signals becomes
shorter as the clearance is reduced.
A continuous tone sounds from a distance of approx. 30 cm (area B ) - danger
area. From this moment on do not continue driving! If the vehicle is equipped with
a factory-fitted towing device, the border of the danger area starts -
continuous
tone - 5 cm further away from the vehicle. The vehicle can be extended through
an installed detachable towing device.
On factory-fitted radio navigation systems and car stereos, the distance to the ob-
struction can also be shown graphically in the display. On vehicles with a factory-
fitted towing device, the rear sensors are deactivated when towing a trailer. The
driver is informed about this by a graphic display (vehicle towing a trailer) in the
radio or the radio navigation display. In some factory fitted radios or radio naviga-
tion systems, you can configure the system to reduce the playback volume when
the parking aid is active, see the owner's manual for the radio or radio navigation
system. This makes it easier to hear the parking aid.
Activating
The parking aid is activated when the reverse gear is engaged and the ignition is
switched on or by pressing the button ⇒ fig. 103 - left, the symbol lights up in
the button. The activation is confirmed by a brief acknowledgement signal.
Deactivating
The parking aid is deactivated after pressing the button
⇒
fig. 103 - left, or at a
speed of more than 10 km/h - the symbol in the button is no longer illuminated. £ 103
Starting-off and Driving Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data