2006 SKODA OCTAVIA cooling

Setting the air conditioning system
Recommended basic settings of the control elements of the air conditioning sys-
tem for the respective operating modes:
Set-up Setting of the control dial
Button
Air outlet vents 3 A B C 1 4
Defrost/defog windscreen and
side windows
a) Desired tempera-
ture 3 or 4
Automatically
switched on Do not switch on Open and align with the side
window
The fastest heating To the right up to
the stop 3
Switched off Briefly switch on
Opening
Comfortable heating Desired tempera-
ture 2 or 3
   Switched off Do not switch on
Opening
The fastest cooling To the left up to
the stop briefly 4, then
2 or 3 Activated Briefly switch on
Opening
Optimal cooling Desired tempera-
ture 1, 2 or 3
Activated Do not switch on Open and align to the roof
Fresh air mode - ventilation To the left up to
the stop Desired position
Switched off Do not switch on
Openinga)
We recommend that you do not use this setting in countries with high humidity levels. This can result in heavy cooling of the window glass and the following fogging from outside. Note
■ Controls A
» Fig. 89
on page 82, B
, C
and buttons 1
and 4
.
■ Air outlet vents 3 » Fig. 86 on page 80.
■ We recommend that you leave the air outlet vents 4 » Fig. 86 on page 80 in the
opened position. ÐRecirculated air mode
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 on
› Press the button
 4
» Fig. 89
on page 82 and the warning light in the but-
ton illuminates. Switching off
› Press the button
 4
» Fig. 89
on page 82again - the warning light in the
button goes out.
Recirculated air mode is switched off automatically if the air distribution control C
» Fig. 89
on page 82 is turned to position . Recirculated air mode can be
switched on again from this setting by repeatedly pressing the button  .
WARNING
Do not leave recirculated air mode on over a longer period of time, as “stale”
air can cause fatigue of the driver and passengers, reduce attention levels and
also cause the windows to mist up. The risk of having an accident increases.
Switch off recirculated air mode as soon as the windows start to mist up. Ð
84 Using the system

Climatronic (automatic air conditioning system)
Introductory information
The Climatronic maintains fully automatically a convenience temperature. This is
achieved by automatically varying the temperature of the air flow, the blower
stages and air distribution. The system also takes sunlight into account, which
eliminates the need to alter the settings manually. The automatic
mode » page 86
ensures maximum well-being of the occupants at all times of
the year.
Description of Climatronic system
The cooling system only operates if the following conditions are met:
› engine running;
› outside temperature above approx. +2 °C;
› AC 13
» Fig. 90 on page 85

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 8
» Fig. 90
on page 85.
› Move the air outlet vents
3 » Fig. 86 on page 80 and 4 so that the air flow is
directed slightly upwards. Note
■ We recommend that you have the Climatronic system cleaned by a
ŠKODA spe-
cialist garage once every year. ■ On vehicles equipped with a factory-fitted radio or radio navigation system, the
Climatronic information is also shown on their displays. This function can be
switched off, see operating instructions for the radio or navigation system. Ð Overview of the control elements
Fig. 90
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  The buttons/control dial
Setting of the temperature for the left side, operation of the seat heating of
the left front seat
Automatic mode AUTO Switching off Climatronic
OFF Setting the blower speed
 Button for direct switching on/off of auxiliary heating
 » Fig. 91 on
page 88
Switching on/off of the temperature setting in dual mode DUAL Switching the cooling system on and off
AC Setting of the temperature for the right side, operation of the seat heating of
the right front seat £ 1
2
3
4
5
6
7
8
9
10
11
12
13
14
85
Heating and air conditioning system

Note
Below the top row of buttons is located the interior temperature sensor. Do not
stick anything on or cover the sensor, otherwise it could have an unfavourable ef-
fect on the Climatronic. ÐAutomatic 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 on
› Set a temperature between +18 °C and +26
℃.
› Move the air outlet vents
3 » Fig. 86 on page 80 and 4 so that the air flow is
directed slightly upwards.
› Press the button
AUTO 8
» Fig. 90
on page
85. The warning light in the top
right or left corner lights up, depending on which mode was last selected.
If the warning light in the top right corner of the button AUTO 8
» Fig. 90
on
page 85

lights up, the Climatronic operates in “HIGH” mode. The “HIGH” mode is
the standard setting of the Climatronic.
When pressing again the button AUTO , the Climatronic changes into the “LOW”
mode and the warning light in the top left corner lights up. The Climatronic uses
only in this mode the lower blower speed. However taking into account the noise
level, this is more comfortable, yet be aware that the effectiveness of the air con-
ditioning system is reduced particularly if the vehicle is fully occupied.
By pressing the button AUTO again, it is changed to “HIGH” mode.
Automatic mode is switched off by pressing one of the buttons for the air distri-
bution or by increasing/decreasing the blower speed. The temperature is never-
theless regulated. ÐSwitching the cooling system on and off
Switching the cooling system on and off › Press the button
AC 13

» Fig. 90 on page 85. The warning light in the button
lights up.
› When you again press the button
AC 13
, the air conditioning system is switch-
ed off. The warning light in the button goes out. Only the function of the venti-
lation remains active when no lower temperature than the outside temperature
can be reached. Ð Setting temperature
The interior temperature for the left and right side can be set separately.
› The temperature for both sides can be set with the control dial 7
» Fig. 90 on
page 85

after switching on the ignition.
› If you wish to set the temperature for the right side, turn the control dial 14
» Fig. 90
on page
85. The warning light in the button DUAL 12
» Fig. 90
on
page 85
lights up, this indicates that differing temperatures for the left and
right side can be set.
If the warning light in the button DUAL 12
»
Fig. 90
on page 85 is illuminated, the
temperature for both sides cannot be set with the control dial 7
» Fig. 90
on
page 85. You can reactivate this function by pressing the button DUAL 12
. The
warning light in the button goes out.
The interior temperature can be set between +18 °C and +26 ℃. The interior tem-
perature is regulated automatically within this range. If a temperature lower than
+18 °C is selected, a blue symbol lights up at the start of the numerical scale. If a
temperature higher than +26 °C is selected, a red symbol lights up at the start of
the numerical scale. 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 (especially
around the feet) and large differences in temperature, for example, when getting
out of the vehicle, can cause susceptible individuals to catch a cold. Ð Recirculated air mode
Recirculated air mode largely prevents polluted air from outside the vehicle get-
ting into the vehicle, for example, when driving through a tunnel or when stand-
ing in a traffic jam. If a considerable increase in concentration of pollutants is rec-
ognized 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 con-
trol is automatically switched off so that fresh air can be guided into the vehicle
interior. In recirculated air mode air is sucked out of the interior of the vehicle and
then fed back into the interior. When the automatic air distribution control is
switched on, an air quality sensor measures the concentration of pollutants in the
drawn in air. £
86 Using the system

WARNING (Continued)
■ If you notice that the lock is not properly engaged while driving, stop the ve-
hicle immediately and close the bonnet - risk of an accident!
■ Keep children clear of the engine compartment.
■ Do not touch any hot engine parts - risk of burns!
■ Never spill fluids on the hot engine. Such fluids (e.g. the antifreeze con-
tained in the coolant) may ignite!
■ Avoid short circuits in the electrical system - particularly on the vehicle's
battery.
■ Never touch the radiator fan while the engine is still warm. The fan might
suddenly start running! ■ Never open the end cover of the coolant expansion reservoir while the en-
gine is still warm. The cooling system is pressurized!
■ When opening the end cover of the coolant expansion reservoir, cover it
with a cloth to protect your face, hands and arms from hot steam or hot cool-
ant.
■ Do not leave any items such as cloths or tools in the engine compartment.
■ If you wish to work under the vehicle, you must secure the vehicle from roll-
ing away and support it with suitable supporting blocks: the car jack is not
sufficient for this - risk of injury!
■ If any inspection work has to be carried out when the engine is running,
there is an additional risk from rotating parts (e.g. V-belt, alternator, radiator
fan) and the high-voltage ignition system. The following must also be ob-
served: ■Never touch the electric wiring on the ignition system.
■ Always make sure that no jewellery, loose clothing or long hair can get
caught in rotating engine parts - hazard! Always remove any jewellery, tie
back long hair and wear tight fitting clothing before completing any work.
■ Additionally, the following warning instructions must be observed if work
has to be carried out on the fuel or electrical system. ■Always disconnect the vehicle battery from the electrical system.
■ Do not smoke.
■ Never work near open flames.
■ Always have a functioning fire extinguisher nearby. CAUTION
■ Always top up using the correct specification of fluids. This may result in major
operating problems and also vehicle damage!
■ Never open the bonnet using the locking lever - danger of causing damage. For the sake of the environment
In view of the environmentally friendly disposal of fluids, the specials tools and
knowledge required for such work, we recommend that fluids are changed by a
Škoda
Service Partner as part of the inspection service. Note
■ If you have any questions regarding the fluids, visit a
ŠKODA Service Partner.
■ Fluids with the correct specifications can be purchased from ŠKODA Original Ac-
cessories. Ð
159
Inspecting and replenishing

Changing engine oil
First read and observe the introductory information and safety warn-
ings on page 158.
The engine oil must be changed at the intervals stated in the Service schedule or
according to the service interval indicator
» page 10, Service Interval Display.CAUTION
Additives must not be added to the engine oil - risk of causing considerable dam-
age to parts of the engine! Damage, which results from such product, are exclu-
ded from the warranty. Note
If your skin has come into contact with oil, it must be washed thoroughly. ÐCoolant
First read and observe the introductory information and safety warn-
ings on page 158.
The cooling system is filled with a coolant in the factory.
The coolant consists of water with a concentration of coolant additive of 40 %.
This mixture provides antifreeze protection down to -25
°C and 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.
The concentration of coolant must therefore not be reduced by adding water dur-
ing the summer months or in countries with a warm climate. The concentration of
coolant additive in the coolant must be at least 40 %. 40 %.
If a higher concentration of antifreeze is required for climatic reasons, the amount
of coolant additive can only be increased 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 are already factory-filled with a
coolant which offers antifreeze protection down to about -35 °C. In these coun-
tries the concentration of coolant additive should be at least 50 %.
When refilling, we only recommend you use the same antifreeze written on the
antifreeze expansion tank » Fig. 135 on page 163.
ä
ä
Coolant capacity
Petrol engines Capacities (in litres)
1.2 ltr./77 kW TSI 7.7
1.4 l/59 kW 7.1
1.4 ltr./90 kW TSI 7.7
1.6 l/75 kW 7.4
1.8 ltr./112 kW TSI 8.6
1.8 ltr./118 kW TSI 8.6
2.0 ltr./147 kW TSI 8.6 Diesel engines
Capacities (in litres)
1.6 ltr./77 kW TDI CR 8.4
1.9 l/77 kW TDI PD 8.4
1.9 ltr./77 kW TD PD DPF 8.4
2.0 ltr./81 kW TDI CR 8.4
2.0 ltr/103 kW TDI CR DPF 8.4
2.0 ltr./125 kW TDI CR 8.4 CAUTION
■ Other coolant additives that do not comply with the correct specifications can
above all significantly reduce the anticorrosion effect.
■ Any faults resulting from corrosion may cause a loss of coolant and can conse-
quently result in major engine damage! Note
On vehicles that are fitted with an auxiliary heater (auxiliary heating and ventila-
tion), the coolant capacity is approx. 1 l larger. Ð
162 General Maintenance

Checking the coolant level
Fig. 135
Engine compartment: Coolant
expansion reservoir
First read and observe the introductory information and safety warn-
ings on page 158.
The coolant expansion bottle is located in the engine compartment.
›
Switch off the engine.
› Open the bonnet
» page 160.
› Check the level of coolant in the coolant expansion bottle
» Fig. 135. The cool-
ant level when the engine is cold must lie between the B
(MIN) and A
(MAX)
markings. The level may also rise slightly above the A
(MAX) marking when the
engine is warm.
If the coolant level in the coolant expansion tank is too low, this is indicated by
the warning light  lighting up in the instrument cluster » page 20, Coolant tem-
perature/coolant level . We still recommend inspecting the coolant level directly
at the reservoir from time to time.
Loss of coolant
A loss of coolant is first and foremost an indication of a leak in the system. Do
not merely top up the coolant. Have the cooling system checked by a
ŠKODA spe-
cialist garage immediately. CAUTION
If a fault causes the engine to overheat, we recommend visiting a ŠKODA Service
Partner immediately, otherwise serious engine damage may occur. Ð
ä Replenishing the coolant
First read and observe the introductory information and safety warn-
ings on page 158.
›
Switch off the engine.
› Allow the engine to cool.
› Place a cloth over the cap of the coolant expansion reservoir
» Fig. 135 on
page 163 and unscrew the cap carefully.
› Replenish the coolant.
› Turn the cap until it clicks into place.
Do not use an alternative additive if the specified coolant is not available in an
emergency. In this case, just use water and have the correct mixing ratio of water
and the coolant additive restored by a ŠKODA

specialist garage as soon as possi-
ble.
Only use new coolant to top up the system.
Do not fill the coolant above the mark A
(max.)
» Fig. 135 on page 163! Excess
coolant heats up and then is forced out of the cooling system through the pres-
sure relief valve in the cap. WARNING
■ The coolant additive and thus all of the coolant is harmful to your health.
Avoid contact with the coolant. Coolant vapours are also harmful to health.
Therefore always safely store the coolant additive in its original container out
of the reach of children - risk of poisoning!
■ If any coolant splashes into your eyes, immediately rinse out your eyes with
clear water and contact a doctor as soon as possible.
■ You should also consult a doctor without delay if you have inadvertently
swallowed coolant. CAUTION
Do not continue your journey, if it is not possible  to top up the coolant under
the prevailing conditions . Contact a

ŠKODA Service Partner to avoid the risk of
serious engine. Ð
ä
163
Inspecting and replenishing