Heating, Ventilation and Air conditioning155
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
If a temperature above +29°C (86°F) is selected, the display switches to
HI In
this setting the system runs at maximum heating output and the temperature
is not controlled.
Climatronic maintains a constant temperature level fully automatically. This is
done by automatically adjusting the temperature of the air supplied to the
interior, the blower setting, and the air distribution. The system also allows
for the effect of strong sunlight, so there is no need for manual adjustment.
Therefore, automatic mode provides the best comfort for the vehicle occu-
pants in virtually all conditions throughout the year. Automatic mode is switched off whenever an adjustment is made using the
buttons for air distribution or blower. The temperature continues to be regu-
lated.
Note
In the automatic mode, at least one outlet in the instrument panel must be
open. The cooling system could otherwise ice over.
Manual mode
In manual mode you can adjust the air temp
erature, flow, and distribution yourself.Switching on manual mode
– Press one of the air distribution buttons ⇒fig. 119 or
several times, or one of the temperature buttons or . is deleted from the display.
Fig. 119 Instrument panel: Climatronic controls
A15
A16
A17
A18
AUTO
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Heating, Ventilation and Air conditioning
156Te m p e r a t u r e
The selected temperature setting is shown on the display. It is possible to
select interior temperatures from +18°C (64°F) to +29°C (86°F). These are
approximate temperatures and the actual temperature may be slightly higher
or lower depending on the outside conditions.
If a temperature below +18°C (17.78°C) is selected, the display switches to
LO The temperature is not controlled and in AUTO mode, the system runs at
maximum cooling output.
If a temperature above +29°C (86°F) is selected, the display switches to HI In
this setting the system runs at maximum heating output and the temperature
is not controlled.
Blower
The blower can be adjusted gradually using the controls y . Always
have the blower running at a low setting to ensure a constant flow of fresh air
into the vehicle. If the blower is set to 0, the Climatronic is switched off.
Air distribution
The air distribution is adjusted using the buttons and . It is also
possible to open and close some of the air outlets separately.
Switching off the cooling system
Pressing the button switches off the air cooling system to save fuel.
The temperature continues to be controlled, but the air cannot be cooled. The
set temperature can then only be reached if it is higher than the outside
temperature.
Switching the Climatronic on/off
Press button until OFF is shown on display . The Climatronic is switched
off. This function should be used in certain situations only (e.g. if the system
develops a fault).
The Climatronic is switched back on by pressing button .
WARNING
When the Climatronic is off open a window to ensure an adequate supply of
fresh air in the vehicle. Otherwise, when the Climatronic is switched off, no
fresh air enters the vehicle. Stale or contaminated air inside the vehicle
may cause drowsiness, increasing the risk of accident.Air recirculation mode
Air recirculation mode prevents fumes or unpleasant smells
from entering the vehicle.– Press the button ⇒page 155, fig. 119 to switch air recircula-
tion mode on or off. This is ON if the symbol is displayed
on the screen.Air recirculation mode prevents strong odours in the ambient air from
entering the vehicle interior, for example when passing through a tunnel or in
queuing traffic.
When the outside temperature is low, using air recirculation mode provides
more effective heating by heating air from the vehicle interior instead of cold
air from outside.
When the outside temperature is high, using air recirculation mode provides
more effective cooling by cooling air from the vehicle interior instead of warm
air from outside.
ECON
A13
A3
AUTO
A12
A6
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Heating, Ventilation and Air conditioning157
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
WARNING
Do not leave the air recirculation function on for long periods. In air recircu-
lation mode, no fresh air enters the vehicle interior. Also, if the cooling
system is switched off, the windows can quickly mist over. Stale or contam-
inated air inside the vehicle may cause drowsiness, increasing the risk of
accident.Climatronic for the passenger compartmentSetting the blower speed for the passenger compartment
– The temperature is selected with buttons ⇒fig. 120 and .
It remains stored until another temperature is selected. Setting the blower speed for the passenger compartment
– Buttons and are used to lower or raise the blower speed
and thus adjust the air volume.
The Climatronic for the rear works only in air recirculation mode. Fresh air is
not drawn into the vehicle.
Fig. 120 Instrument panel: Climatronic controls
A21
A22
A19
A20
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Heating, Ventilation and Air conditioning
158The Climatronic can be fitted either with or without an additional cooling
system
38) for the passenger compartment.
Climatronic for the passenger compartment without additional cooling
system
The temperature setting for the rear can be max. 3°C higher than the temper-
ature in the passenger compartment. A lower temperature can not be set.
If the Climatronic detects that the passenger compartment has to be heated,
it activates the additional heat exchanger. The air outlets on the floor guide
warm air into the vehicle ⇒page 158.
If the Climatronic detects that the passenger compartment has to be cooled,
cooled air is fed into the vehicle via the air outlets in the front of the vehicle
only ⇒page 158.
Climatronic for the passenger compartment with additional cooling system
The temperature setting for the rear can be max. 3°C lower than the tempera-
ture in the passenger compartment.
If the Climatronic detects that the passenger compartment has to be heated,
it activates the additional heat exchanger. The air outlets on the floor guide
warm air into the vehicle ⇒page 158.
If the Climatronic detects that the passenger compartment has to be cooled,
cooled air is fed into the rear of the vehicle via the open air outlets in the roof
⇒ page 158.
Air outlets in the passenger compartmentAir outlets for heating the passenger compartment
The air outlets ⇒ fig. 121 for the passenger compartment heating system are
located at the bottom of the left side panel at the rear.
38)Optional equipment
Fig. 121 Air outlets for
heating the passenger
compartmentFig. 122 Cold air vents in
the roof
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Heating, Ventilation and Air conditioning159
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
Air vents in the roof
In vehicles with a second cooling system
39) for ventilating the passenger
compartment, an air outlet is fitted in the roof above each rear seat
⇒ fig. 122 .
The air outlets in the roof can be opened and closed individually and
adjusted by moving the grid.
Each air outlet has two thumb wheels. The left thumb wheel can be used to
open and close the air outlet. The right thumb wheel can be used to direct the
air towards the head and chest.
WARNING
Never leave objects, food or medicines in front of the air outlets in the rear
seats. The hot air could damage or destroy heat-sensitive objects, food or
medicines.
Caution
Do not use the area in front of the outlets to store objects. This could cause
the blower to overheat and switch off. The blower could also be damaged.
Note
In the cooling mode, at least one air outlet in the roof must be open. The
cooling system could otherwise ice over.
General notesThe pollution filter
The pollution filter serves as a barrier against impurities in the ambient air (
e.g.dust and pollen).
For the air conditioning system to work with maximum efficiency, the pollen
filter must be replaced at the intervals specified in the Service Schedule.
If the filter loses efficiency prematurely due to use in areas with very high
levels of air pollution, the pollen filter must be changed more frequently than
stated in the Service Schedule.
Instructions for use
If the air conditioning or Climatronic
40) is not switched on for a long period,
deposits on the evaporator can cause unpleasant smells. To prevent these
odours, the cooling system should be run at the highest blower setting at
least once a month when temperatures are over +5°C. Briefly open a window
at the same time.
Faults in the operation of the air conditioning
There is a fault if the all the symbols in the Climatronic flash for approx. 15
seconds when the ignition is switched on. Contact a specialist workshop.
If the air conditioning system cannot be switched on this may be caused by
the following reasons:
•
the engine is not running.
•
The blower is switched off.
•
The outside temperature is lower than +5°C.
•
the cooling system compressor has been temporarily switched off
because the engine coolant temperature is too high.
•
The air conditioning fuse is faulty.
39)Optional equipment
40)Optional equipment
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Heating, Ventilation and Air conditioning
160•
Another fault in the vehicle. Have the air conditioning checked by a qual-
ified workshop.
WARNING
Please note that when the Climatronic is switched off, no fresh air will enter
the vehicle interior. For this reason you should ensure that sufficient fresh
air is able to enter the vehicle by opening a window or the sliding/tilting
sunroof
40) when the Climatronic is switched off.
Caution
•
If you suspect that the air conditioning is damaged, switch off the air
conditioning with button to prevent further damage and have it
checked by a qualified workshop.
•
Repairs to the air conditioning system require specialist knowledge and
special tools. Therefore, we recommend that you take the vehicle to a quali-
fied workshop should problems occur.Note
•
If the humidity and temperature outside the vehicle are high, condensa-
tion can drip off the evaporator in the cooling system and form a pool under-
neath the vehicle, this is completely normal and there is no need to suspect
a leak.
•
Keep the air intake slots in front of the windscreen free of snow, ice and
leaves to ensure heating and cooling is not impaired, and to prevent the
windows misting over.
•
The air conditioning system operates most effectively with the windows
and the sliding /tilting roof
40) closed. However, if the sun has heated up the
vehicle, the air inside can be cooled more quickly by opening the windows for
a short period.
•
Do not smoke while air recirculation mode is on, as smoke drawn into the
cooling system leaves a residue on the evaporator, producing a permanent
unpleasant odour.
ECON
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Cleaning and caring for your vehicle203
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
•
Check the condition of all seat belts at regular intervals. If you notice
that the belt webbing, fittings, retractor mechanism or buckle of any of the
belts is damaged, the belt must be replaced by a specialist workshop.
•
Do not attempt to repair a damaged seat belt yourself. The seat belts
must not be removed or modified in any way.Caution
After cleaning, allow seat belts to dry completely before rolling them up.
Otherwise the belt retractors could become damaged.Cleaning the cool/thermos box – Before using the insulated box for the first time, you should clean
it, using a household detergent.
– Always clean the inside of the insulated box when it is soiled.If you do not plan to use the insulated box for a long period, disconnect the
power supply and clean the inside and outside of the box. Place a folded
towel between the box and its lid. This prevents mould and damp stains
forming in the cooling and heating box.
WARNING (continued)
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Accessories, parts replacement and modifications207
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
If a towing bracket is to be retro-fitted to the car, it must be done according to
the instructions of the towing bracket manufacturer.
The attachment points for the towing bracket ⇒
page 206, fig. 136 are
underneath the vehicle.
Always observe the minimum distance from the middle of the ball coupling to
the ground (350 to 420 mm). This also applies when the vehicle is fully laden,
including maximum drawbar load.
Fitting a towing bracket
•
Driving with a trailer implies additional work for the vehicle. Therefore,
before fitting a towing bracket, please contact an Authorised Service Centre
to check whether your cooling system needs modification.
•
Observe the legal requirements in your country (e.g. the fitting of a sepa-
rate pilot lamp).
•
Certain vehicle components, e.g. the rear bumper must be removed and
reinstalled. The towing bracket securing bolts have to be tightened using a
torque wrench, and a socket connected to the vehicle's electrical system. This
requires specialist knowledge and tools.
•
The figures in the illustration show the dimensions and attachment points
which must be observed if you are retrofitting a towing bracket.
WARNING
If a towing bracket is retrofitted, it should be done by a qualified dealer.•
If the towing bracket is incorrectly fitted, this could cause a safety risk.
•
For your own safety, please observe the instructions provided by the
manufacturer of the towing bracket.Caution
If the connector socket is not fitted correctly, this could cause damage to the
vehicle's electrical system.
AA
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