cooling SKODA SUPERB 2003 1.G / (B5/3U) User Guide

Heating and air conditioning system 105
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
•Turn the air distribution control into the position 
•Open the air outlet vents 3 and 4
•Switch on the air conditioning system using switch
•we recommend that you press the switch - recirculated air
mode - for a short time
Optimum cooling
•Turn the control dial to the left up to the stop and the temperature
can then be increased by turning the regulator to the right according to the
prevailing conditions
•Blower switch in position 1, 2 , or 3
•Turn the air distribution control into the position 
•Open the air outlet vents 3 and 4
•Switch on the air conditioning system using switch
Fresh air mode (ventilation)
•Turn the control dial ⇒page 103, fig. 99 to the left up to the stop
•Blower switch at least in position 1
•Turn the air distribution control into the position 
•Open air outlet vents 3 and 4 ⇒ page 106, fig. 100
Fresh air is also supplied to the rear footwell if you select air outlet vents
5 with the aid of the air distribution control .
Recirculated air mode
In recirculated air mode air is sucked out of the interior of
the vehicle and then fed back into the interior.
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 traffic jam.
Switching recircul ated air mode on
– Press switch ⇒page 103, fig. 99 the switch symbol

lights up.
Switching recirculated air mode off
– Press switch again, the switch symbol
 goes out.
Recirculated air mode is switched off automatically if the air distribution
control ⇒page 103, fig. 99 is in position .
AC
ACAE
AD
AA
AB
AC
ACAE
AA
AB
AC
AC
WARNING
You should not leave recirculated air mode on over a longer period
of time. “Stale air” may result in fatigue in the driver and passen-
gers, reduce attention levels and also cause the windows to mist
up. The risk of having an accident increases. Switch recirculated
air mode off as soon as th e windows begin misting up.


AC

Heating and air conditioning system
106
Air outlet vents
Fig. 100 Air vents at the front
Fig. 101 Air vents at the rear
Open air outlet vents
– Turn the vertical thumbwheel (not when in the end position). Close air outlet vents
– Turn the vertical thumbwheel into the end position.
Redirecting air flow
– Swivel upward or downward the gr
ille of the vents in order to
change the direction of the air flow using the vertically
arranged thumbwheel.
– Turn the horizontal thumbwheel on the vent to the right or left in order to change the air flow to the appropriate side.
You can set the air supply to the individual vents with the air distribution
control ⇒page 103, fig. 99 . You can also set the vents 3 and 4
⇒ fig. 100 and 6 ⇒ fig. 101 individually.
Unwarmed or cooled air will flow out of the air outlet vents according to the
setting of control dial ⇒page 103, fig. 99 and the atmospheric condi-
tions.
The rear footwell vents 7 are controlled together with the vents 5. Turn the
air distribution control ⇒page 103, fig. 99 into the position
.
Using the air conditioning system economically
The compressor on the air conditioning system uses power from the
engine when in cooling mode which will effect the fuel consumption.
It recommended to open the windows or the doors of a vehicle for which
the interior has been strongly heated through the effect of direct sunlight
in order to allow the heated air to escape.
The air conditioning system should not be switched on while travelling
when the window is open.
AC
AA
AC

Heating and air conditioning system 107
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
The desired interior temperature can also be achieved without switching
in the air conditioning system just by switching to fresh air mode.
For the sake of
the environment
When you economize on fuel, you also reduce pollutant emissions.
Operational problems
If the cooling system does not operate at outside temperatures higher
than +5°C, there is a problem in the system. The reasons for this may be:
•The fuse of the air conditioning system is defective ⇒page 241.
Check the fuse, replace it if necessary.
•The cooling system has switched off automatically for a short time
because the coolant temperature of the engine is too hot.
If you are not able to rectify the operational problem yourself, or if the
cooling capacity decreases, switch the air conditioning system off. Please
contact your Škoda dealer.
Climatronic* (automatic air conditioning)
Description
The Climatronic system is a combination of an automatic heating, fresh air
and cooling system which provides optimal comfort for the occupants of
the car.
The Climatronic maintains a constant temperature fully automatically,
once it has been set. This is achieved by automatically varying the temperature of the outflowing air, the blower stages and the air distribu-
tion. It is not necessary to manually alter the settings. The
automatic
mode ⇒ page 109 ensures maximum wellbeing of the occupants at all
times of the year.
Description of Climatronic system
The Climatronic can only operate if the following conditions are met.
•engine running
•outside temperature above +5 °C,
•the button is not pressed.
If the Climatronic system is switched on, the temperature and air humidity
drops in the vehicle. The wellbeing of the occupants of the car is enhanced
as a result of this particularly at high outside temperatures and a high air
humidity. The system prevents the windows misting up during the cold
season of the year.
It is possible to briefly activate recirculated air mode in order to enhance
the cooling effect ⇒.
The heating effect is dependent upon the coolant temperature, thus full
heat output only occurs when the engine has reached its operating
temperature.
Puddle of water below car
After switching on the air conditioning Condensation from the evaporator
of the air conditioning may drip down and form a puddle below the vehicle.
This is quite normal and not an indication of a leak!
Switching over from degrees Celsius to degrees Fahrenheit and vice
versa
First of all press and hold the button ⇒page 108, fig. 102 and
then press the button . The temperature measuring unit appears
in the display.ECON
ECONAUTO

Heating and air conditioning system
108
An acoustic signal for depressed buttons
Simultaneous pressing of buttons and can be used to de-acti-
vate or activate this function.
A higher tone is heard when switching on this function, when increasing
the blower speed or when increasing the temperature.
A lower tone is heard when switching off this function, when decreasing
the blower speed or when decreasing the temperature.
Aeration of the vehicle when ignition is switched off*
On models fitted with power sliding/tilting roof with sollar cells, the fresh
air blower is automatically switched over to “solar mode ” if the sun ray's
are sufficient after switching off the ignition. The solar cells on the
sliding/tilting roof deliver power for the fresh air blower. This supplies the
interior of the car with fresh air.
For an optimum ventilation, the air outlet vents 3 and 4 must be opened
⇒ page 112.
The ventilation functions only when the sliding/tilting roof is closed.Note
•If the air conditioning system has not been switched on for a lengthy
period, odours may be produced at the evaporator because of deposits.
Switch the air conditioning system on at least once a month for approxi-
mately 5 minutes at the highest blower stage - also during the cold season
of the year - in order to remove such odours. Also open a window for a
short time.
•We recommend that you do not smoke in the vehicle when the recir-
culating air mode is operating since the smoke which is drawn at the evap-
orator from the interior of the vehicle forms deposits in the evaporator of
the air conditioning system. This produces a permanent odour when the
air conditioning system is operating which can only be eliminated through
considerable effort and expense (replacement of compressor).
•Using the air conditioning economically ⇒page 106.
•Operational problems ⇒page 107.
Overview of the controls
Fig. 102 Climatronic: Controls
WARNING
•For your own safety and that of other road users, ensure that all
the windows are free of ice, snow and misting. Please familiarize
yourself about how to correctly operate the heating and ventilation
systems, how to demist and defrost the windows, as well as with
the cooling mode.
•You should not leave recirculated air mode on over a longer
period of time. “Stale air” may result in fatigue in the driver and
passengers, reduce attention levels and also cause the windows to
mist up. The risk of having an accident increases. Switch recircu-
lated air mode off as soon as the windows begin misting up.
ECON

Heating and air conditioning system 109
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
The buttons
Defrosting the windscreen
The displays Display of blower stages

Display of outside temperature, here: +11 °C
Defrosting the windscreen

Display for recirculated air mode 
Direction of air flow 
Display of selected inside temperature, here: +22 °C
Display for:
− Automatic mode ( AUTO) or
− Cooling system switched off ( ECON) or
− Climatronic switched off ( OFF)
The buttons Automatic mode
Recirculated air mode
Button for:
−Reducing blower speed or
− Switching off Climatronic ( OFF)
Increasing blower speed button or switching Climatronic on
Air flow button to chest (ventilation mode)
Air flow button to footwell at front and rear (heating mode)
Button for decreasing temperature
Button for increasing temperature
Button for switching off cooling system
The sensor Interior temperature sensor( on left-hand steering models, on
right-hand steering models)
Buttons , and can also be pressed in combination.
Automatic mode
The automatic mode is used in order to maintain a
constant temperature and to demist the windows in the
interior of the car.
Switching automatic mode on
– Set a temperature between +18 °C (64 °F) and +29 °C (86 °F).
– Move the air outlet vents 3 and 4 ⇒ page 112, fig. 103
upwards
– Press the button .
When the automatic mode is operating, AUTO appears in the display.
Automatic mode operates only within the control temperature range from
+18 °C (17,78 °C) up to +29 °C (30,00 °F). If you select the temperature
below +18 °C (17,78 °F), LO appears in the display. If you select a temper-
ature higher than +29 °C (30,00 °F), HI appears in the display. In both limit
positions the Climatronic operates at maximum cooling or heating
capacity, respectively. The temperature is not controlled in this case.
If you press when the automatic mode is operating a desired button
(except buttons 15 and 16), the automatic mode is switched off.
ECON mode
The cooling system is switched off in the ECON mode -
heating and ventilation are regulated automatically.
Switching ECON mode on
– Press the button .
A1
A2
A3
A4
A5
A6
A7
A8
A9AUTO
A10
A11

A12
A13
A14
A15
A16
A17ECON
A18A18aA18b
A1A13A14
AUTO
ECON

Heating and air conditioning system 111
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Setting temperature
– Press the button or ⇒page 108, fig. 102 and continue
pressing until the desired temperature is set.
You can set the interior temperature between +18°C (64°F) and +29°C
(86°F). The interior temperature is regulated automatically within this
range. If you select the temperature below 18 °C (64 °F), “LO” appears in
the display. If you select the temperature higher than 29°C (86°F), “ HI”
appears in the display. In both limit positions the Climatronic operates at
maximum cooling or heating capacity, respectively. The temperature is not
controlled in this case.
Lengthy and uneven distribution of the air flow out of the vents (in partic-
ular at the leg area) and large differences in temperature, for example
when getting out of the vehicle, can result in chills in sensitive persons.
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.
Setting blower stages
– Press the button or the button to set the blower stage.
The number of dashes in the display ⇒page 108, fig. 102 indicates
the blower stage.
If OFF is shown in the display, this indicates that the Climatronic system
is switched off ⇒ page 112.
A15A16

A2
WARNING
•“Stale air” may result in fatigue in the driver and passengers,
reduce attention levels and also cause the windows to mist up. The
risk of having an accident increases.
•Do not switch the Climatronic system off for longer than neces-
sary.
•Switch the Climatronic system on as soon as the windows mist
up.

Towing a trailer
184
Towing a trailer
Towing a trailer
Technical requirements
The towing device must satisfy certain technical require-
ments.
Your vehicle is designed primarily for transporting persons and luggage.
It can, however, also be used for towing a trailer - provided certain tech-
nical equipment is fitted.
If your vehicle has already been supplied with a factory-fitted towing
device then everything that is necessary for towing a trailer in technical
terms, and in terms of the law, has already been taken into account.
Your vehicle is fitted with a 13-pin power socket for the electrical connec-
tion between the vehicle and trailer. If the trailer which you wish to tow has
a 7-pin connector , you can use a suitable adapter cable. You can obtain
such an adapter from a Škoda dealer.
This work must be carried out in accordance with the manufacturer's
specifications if a towing device is retrofitted.
Škoda dealers are familiar with details relating to retrofitting a towing
device and for any necessary modifications to the cooling system.
General Maintenance
There are a number of points to pay attention to when
towing a trailer.
Trailer load
The permissible trailer load must on no account be exceeded.
You can negotiate appropriately steeper inclines and descents if you do
not make full use of the permissible trailer load.
The trailer loads specified only apply for altitudes up to 1 000 metres
above mean sea level. The fact that the engine power output drops with
increasing height due to a lowering of air pressure and thus the ability to
climb, means that the towed weight must be reduced by 10% for every
further increase of 1 000 metres in height above sea level. The towed
weight is the weight of the (laden) vehicle and the (laden) trailer together.
One should take this into account before driving up to higher altitudes.
The trailer and drawbar load information on the type plate of the
towing device are merely test data for the towing device The data
relating to your vehicle, which is often less than this test data, can
be found in your vehicle registration documents or in the brochure -
Technical Data.
Distribution of the load
Distribute the load in the trailer in such a way that any heavy items are
located as close as possible to the axle. Secure the items to prevent them
slipping.
You can make full use of the permissible drawbar load indicated on the
ball head of the towing device, but you must not exceed this.
WARNING
We recommend that you have the towing device installed by a
Škoda dealer. He is familiar with all the relevant details relating to
retrofitting such equipment. There is a risk of an accident if the
towing device is not properly fitted.

Towing a trailer
186
before negotiating a downhill section to allow the engine to also act as a
brake.
Engine overheating
Please keep a check on the coolant temperature gauge if you have to
negotiate a lengthy downhill stretch in a low gear at a high engine speed
when the outside temperature is very high ⇒page 14. If the needle of the
coolant temperature gauge moves into the right-hand area or even the red
area of the scale, reduce your speed immediately. Stop and switch off the
engine if the warning light
 in the instrument cluster begins flashing.
Wait a few minutes and check the level of coolant in the coolant expansion
bottle ⇒page 208.
Please refer to the following guidelines ⇒page 31.
The coolant temperature can be reduced by switching on the heating.
Any increase in the cooling effect of the coolant fan through shifting down
a gear and increasing the engine speed is not possible since the fan
speed is independent of the engine speed. One should also not drop a
gear for this reason when towing a trailer as long as the engine can
manage the slope without any drop in speed.
Detachable towing device*
The detachable ball head of the towing device is stowed in the spare
wheel well in the luggage compartment.
An instruction for correct installation and removal of the ball head of the
towing device is supplied with the ball head
Note
•Do not carry out any modifications or repairs to the ball head or to any
other components on the towing device.
WARNING
•Do not use any aids or tools for installing or removing the ball
head. This might result in damage to the locking mechanism to the
extent that the safety of the towing device is no longer assured -
risk of an accident.
Fig. 150 Detachable
ball head

Inspecting and Replenishing203
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
The bonnet is held in the opened position by a pressurized gas spring.
Caution
•Never open the bonnet using the handle - danger of causing damage.
•Before opening the bonnet, ensure that the arms of the windscreen
wipers are correctly in place against the windscreen. Otherwise, there is
a risk of damage to the paintwork.
Working in the en gine compartment
Particular care is required when carrying out any work in
the engine compartment!
There is a risk of injuries, scalding , accidents and fire when working
in the engine compartment, e.g. inspecting and replenishing oil and
other fluids. For this reason, it is essential to comply with the
warning instructions st ated below and with the general applicable
rules of safety. The engine compartment of your car is a hazardous
area ⇒ .
WARNING
•Never open the bonnet if you see that steam or coolant is
flowing out of the engine compartmen t - risk of scalding! Wait long
enough until the steam or coolant has stopped escaping.
•For safety reasons, the bonnet must always be properly closed
when driving. One should therefore check that the lock has in fact
engaged properly after closing the bonnet.
•Stop your vehicle immediately wh ile driving if you notice that
the lock is not properly engaged and close the bonnet properly -
risk of an accident!
WARNING
•Switch off the engine and pull out the ignition key.
•Apply the handbrake firmly.
•If your vehicle is fitted with a manual gearbox, move the gear-
shift lever into Neutral, or if it is fitted with automatic gearbox,
move the selector lever into position P.
•Allow the engine to cool down.
•Keep children clear of the engine compartment.
•Never spill oil and other fluids over the hot engine. Such fluids
(e.g. the antifreeze contained in the coolant) may ignite!
•Avoid short circuits in the electrical system - particularly on the
battery.
•Never place your hand into the radiator fan as long as the
engine is still warm. The fan might suddenly start running!
•Never open the cap of the coolant expansion bottle as long as
the engine is still warm. The cooling system is pressurized!
•Cover over the cap of the coolant expansion reservoir with a
large cloth when opening it as protection for your face, hands and
arms from hot steam or hot coolant.
•In cases where it be necessary to carry out inspection work
when the engine is running there is an additional risk from rotating
parts (e.g. the V-ribbed belt, alternator, radiator fan) and from the
high-voltage ignition system.
•Please also comply with the warning instructions stated below
when carrying out any essential work on the fuel system or on the
electrical system:
−Always separate the car battery from the electrical system.
− Do not smoke.
− Never carry out any work close to naked flames.

Inspecting and Replenishing
208
Cooling system
Coolant
The job of the coolant is to cool the engine.
The cooling system does not require any maintenance under normal oper-
ating conditions. The coolant consists of water with a concentration of
antifreeze agent of 40 %. This mixture not only provides antifreeze protec-
tion down to -25°C but also protects the cooling and heating system from
corrosion. It also prevents the formation of scale and significantly
increases the boiling point of the coolant.
You must therefore not reduce the concentration of antifreeze agent in the
coolant by adding water, also not during the summer months or in coun-
tries with a warm climate. The concentration of antifreeze agent in the
coolant must be at least 40%.
You can increase the amount of antifreeze in the coolant iIf a higher
concentration of antifreeze is necessary for climatic reasons but only up
to 60% (antifreeze protection down to approx. -40°C). The antifreeze
protection tails off above that concentration.
Vehicles exported to countries with a cold climate (e.g. Sweden, Norway,
Finland) are already factory-filled with a coolant which offers antifreeze
protection down to about -35°C.
Coolant
The cooling system is factory-filled with TL 774-F (G12 PLUS) coolant -
colour purple - .
We recommend that you use the same antifreeze agent - G12 PLUS
(purple in colour).
Please contact your Škoda dealer if you have any questions regarding the
coolant or if you wish to fill up with a different coolant. Your Škoda dealer can also supply you with the correct coolant additives.
Caution
•Other coolant additives may cause operational problems which,
in particular, involves significantly reducing the anticorrosion effect.
•Any faults or problems resulting from corrosion may cause a loss
of coolant and, as a consequence of this, result in major engine
damage.
Inspecting the coolant level
The coolant expansion bottle is located in the engine compart-
ment on the left.
– Switch the engine off.
Fig. 157 Engine
compartment: Coolant
expansion bottle