warning light SKODA OCTAVIA 2010 2.G / (1Z) Repair Manual

Heating and air conditioning system
100
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 standi ng in a traffic jam.Switching recirculated air mode on– Press the button page 98, fig. 107 the warning light lights up in the
button.Switching recirculated air mode off– Press again the button - the warning light in the button goes out.
The recirculated air mode is switched off automatically if the air distribution control
is in position
  page 98, fig. 107. You can also switch recirculated air mode on
again from this setting by repeatedly pressing button .
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
increases. Switch recirculated air mode off as soon as the windows begin
misting up.Using the air conditioning system economicallyThe compressor on the air conditioning syst em 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 cooling system should not be switched on while travelling when the window is
open. The desired interior temperature can also be achieved without switching in the cooling
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 malfunctionsIf 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 on the air conditioning system has blown. Check the fuse, replace it if
necessary page 226.

The cooling system has switched off auto matically for a short time because the
coolant temperature of the engine is too hot  page 16.
If you are not able to rectify the operational problem yourself, or if the cooling capacity
decreases, switch the cooling system off. Contact a specialist garage.
Climatronic* (automatic air conditioning)Description
The Climatronic system is a combinat ion of an automatic heating, fresh
air and cooling system which provides optimal comfort for the occu-
pants 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 sunlight which elim-
inates the need to alter the settings manually. The automatic mode  page 102
ensures maximum wellbeing 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,
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Heating and air conditioning system101
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data

outside temperature above approx. +2°C,

switched on.
If the cooling 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 partic-
ularly at high outside temperatures and a high air humidity. The system prevents the
windows misting up during th e cold season of the year.
The heating effect is dependent upon the c oolant temperature, thus full heat output
only occurs when the engine has reached its operating temperature.
It is possible to briefly activate recirculat ed air mode in order to enhance the cooling
effect page 103.
The air inlet in front of the windscreen must be free of ice, snow or leaves in order to
ensure that the heating and cooling systems operate properly.
The AC compressor is switched off at a hi gh coolant temperature in order to provide
cooling at a high load of the engine.
After switching on the cooling Condensation from the evaporator of the air condi-
tioning may drip down and form a puddle be low the vehicle. This is quite normal and
not an indication of a leak!
Recommended setting for all periods of the year:

Set the desired temperature, we recommend 22°C.

Press the button page 102, fig. 108 .

Move the air outlet vents 3 and 4 so that the air flow is directed slightly upwards.
WARNING

For your own safety and that of other road users, ensure that all the
windows are free of ice, snow and mistin g. Please familiarize yourself about
how to correctly operate th e 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,
as “stale” air may result in fatigue in the driver and occupants, divert your
attention and also cause the windows to mist up. The risk of having an accident
increases. Switch recirculated air mode off as soon as the windows begin
misting up.
Note

If the cooling system has not been switched on for a lengthy period, odours may
be produced at the evaporator because of deposits. Switch the cooling system on at
least once a month for approximately 5 minu tes at the highest blower stage - also
during the cold season of the year - in order to avoid such odours. Also open a window
for a short time.

We recommend that you do not smoke in the vehicle when the recirculating air
mode is operating since the smoke which is drawn at the evaporator from the interior
of the vehicle forms deposits in the evapor ator 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).

The used air streams out through the air removal openings in the luggage compart-
ment.

On vehicles equipped with a factory-fitted radio* or navigation*, 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 navigation system*.

Using the cooling economically  page 100.

Operational problems page 100.
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AUTO
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Overview of the control elements
The controls enable a separate setting of the temperature for the left
and right side.Fig. 108 Climatronic: Control elementsThe 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
Buttons / control dial Setting of the temperature for the left side, operation of the seat heating of the left
front seat*
Automatic mode
Switching off Climatronic
Setting the blower speed
Button for direct switching on/off of auxiliary heating (auxiliary heating)*
page 104
Switching on/off of the temperature setting in dual mode Switching cooling on and off
Setting of the temperature for the right side, operation of the seat heating of the
right front seat*
Note
Below the top row of buttons is located the interior temperature sensor. Do not glue
or cover over the sensor, otherwise it co
uld have an unfavourable effect on the
Climatronic.Automatic mode
The automatic mode is used in orde r to maintain a constant tempera-
ture and to demist the windows in the interior of the car.Switching automatic mode on– Set a temperature between +18 °C and +26 °C.
– Move the air outlet vents 3 and 4  page 94, fig. 104, so that the air flow is directed
slightly upwards.
– Press the button . In the right or left top corner a warning light lights up, depending on which unit was last selected.
If the warning light in the top right corner of the button lights up, the
Climatronic operates in “HIGH” mode. The “HIGH” mode is the standard setting of the
Climatronic.
When pressing again the button , the Cl imatronic changes into the “LOW” mode
and the warning light in the top left corner li ghts 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 conditioning system is
reduced particularly if th e vehicle is fully occupied.
By pressing again the button , you change into the “HIGH” mode.
The automatic mode is switched off by pressing the button for the air distribution or
increasing or decreasing the blower speed. The temperature is nevertheless
regulated.
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Heating and air conditioning system103
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
switching cooling on and offswitching cooling on and off–Press the button page 102, fig. 108 . The warning light lights up in the button.
– When you again press the switch , the cooling system is switched off. The warning light in the button goes out. Only the function of the ventilation remains
active when no lower temperature than the outside temperature can be reached.Setting temperatureYou can separate the interior temperature for the left and right side separately.
– You can set the temperature for both sides after switching on the ignition with the
control dial .
– If you wish to set the temperature for the right side, turn the control dial . The warning light in the button lights up, this indicates that differing tempera-
tures for the left and right side can be set.
If the warning light in the button lights up, the temperature for both sides
cannot be set with the control dial . You can reinitiate this function by pressing the
button . The warning light in the button which indicates the possibility to set
differing temperatures for the left and right side, goes out.
You can set the interior temperature between +18°C and +26°C. The interior temper-
ature is regulated automatically within this range. If you chose a temperature lower
than +18°C, a blue symbol lights up at the start of the numerical scale. If you chose a
temperature higher than +26°C, a red symbol lights up at the end of the numerical
scale. In both limit positions the Climatroni c operates at maximum cooling or heating
capacity, respectively. The temperatur e is not controlled in this case.
Lengthy and uneven distribution of the air flow out of the vents (in particul ar at the leg
area) and large differences in temperature, for example when getting out of the vehicle,
can result in chills in sensitive persons.
Recirculated air mode
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.Recirculated air mode prevents polluted air outside the vehicle from getting into the
vehicle, for example when driving through a t unnel or when standing in a traffic jam. If
a considerable increase in concentration of pollutants is recognized by the air quality
sensor, when the automatic air distribution co ntrol 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 automatically 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 automatically 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 or press the bu tton 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-
AC
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Heating and air conditioning system
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tion and also cause the windows to mist up. The risk of having an accident
increases. Switch recirculated air mode off as soon as the windows begin
misting up.
Note

If the windscreen mists up, press the button page 102, fig. 108 . After
the windscreen has been demisted, press the button .

The automatic air distribution control oper ates 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 inte-
rior temperature. You can also , however, a dapt the bl ower stages ma nua lly to suit y our
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, th e Climatronic is switched off.
The set blower speed is displayed above the button when the respective number
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 accident
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 windscreenDefrosting windscreen - switching on– Press the button page 102, fig. 108 .Defrosting windscreen - switching off– Once again press the button or the button .
The temperature control is controlled automatically. More air flows out of the air outlet
vents 1.Auxiliary heating (auxiliary heating and ventilation)*Description and important information
The auxiliary heating (auxiliary he ating and ventilation) heats or
supplies the interior of the vehicl e with fresh air independent of the
engine.Auxiliary heating (auxiliary heating)
The auxiliary heating (auxiliary heating) functions in connection with the Climatic or
Climatronic.
It can be used when stationary, when engi ne is switched off for preheating of the
vehicle as well as while driving (only during the heating phase of the engine).
The auxiliary heating (auxiliary heating) wa rms up the coolant during the combustion
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 decreased (e.g. with the
vehicle parked in the sun).
WARNING (continued)
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– In the menu Aux. Heating select the menu point Running time and set the
desired operating period in steps of 5 m inutes. 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 for or Ventilation for .ProgrammingFor the programming of the auxiliary heating (auxiliary heating and ventilation) in the
menu Aux. heating there are three pre-set times:
Pre-set time 1

Pre-set time 2

Pre-set 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 fo und 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.
If you select the menu Activate after setting the desired values, appears on the display
Pre-set time (weekday, hours, minute) activated! and the set pre-set time is active.
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 Activate
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 105.
If the system is running, a warning light in th e button for direct switching on/off of the
auxiliary heating lights up.
The running system deactivates after expirati on of the operating period or is deacti-
vated earlier by pressing the button for direct switching on/off of the auxiliary heating
 page 105.
A random pre-set time can be deactivated by selecting the menu point Deactivate in
the menu Activate.
After selecting the menu point Fa ct or y se t ti ng in the menu Aux. heating , it is possible
to return to the factory setting.

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108

You should not switch on any major elec trical components during the heating
period otherwise the vehicle battery will be drained unnecessarily.
- start engine
Applies to all models:
Position
To lock the steering , with the ignition key withdrawn, turn the steering wheel until 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
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
The engine is started in this position. At th e same time switched on low beam or main
beam or other electrical components wi th major power consumption are briefly
switched off. The ignition key moves back into position when one releases the key.
The ignition key must be turned back into position each time before starting the
engine again. The starter repeat lock in th e ignition lock prevents the starter being
engaged when the engine is r unning and thus getting damaged.
Ignition key withdrawal lock (automatic gearbox)
You can only withdraw the ignition key after switching off the ignition if the selector
lever is in position P.
WARNING

When driving, the ignition key must always be in the position (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 wh eel - 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 imme diately - 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 engi ne or switch on electrical equipment
(e.g. power windows) - risk of accident or injury!
Starting the engineGeneral
You can only start the engine only using an original ignition key.
Place the gearshift lever into neutral (or place the selector lever to the position P or
N in the case of an automatic gearbox) and put on the handbrake firmly before starting
the engine.

Before starting, it is necessary to depres s the clutch pedal and to hold it pressed
until the engine starts. If you start the engi ne without depressing the clutch pedal, the
engine does not start and a message is shown in the display of the instrument cluster
to remind you of th e necessity to depress the clutch pedal.

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 anothe r vehicle as a jump-start aid page 221.
It is only possible to tow-start vehicles fi tted with a manual gearbox. The tow-starting
distance must not be more than 50 metres page 225.
WARNING

Never run the engine in non ventilated or enclosed areas. The exhaust gases
of the engine contain besides the odorless and colourless carbon monoxide a
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WARNING (continued)
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Starting-off and Driving109
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
poisonous gas - hazard! Carbon monoxide can cause unconsciousness and
death.

Never leave your vehicle unattended with the engine running.Caution

The starter may only be operated (ignitio
n key position ), if the engine is not
running. If the starter is immedi ately operated after switching off the engine, the starter
or the engine can be damaged.

Avoid high engine revolutions, full throttle and high engine loads as long as the
engine has not yet reached its normal oper ating temperature - risk of damaging the
engine!

Vehicles which are fitted with an exhaust gas catalytic converter should not be tow-
started over a distance of more than 50 metres.For the sake of the environment
Never warm up the engine when the vehicle is standing. Drive off right away. Through
this the engine reaches its operating temperature more rapidly and the pollutant emis-
sions are lower.Petrol enginesThese engines are fitted with a starter system which selects the correct fuel-air mixture
for every external air temperature.
Do not operate accelerator before and when starting engine.

Interrupt the attempt at starting after 10 seconds if the engine does not start right
awayand wait for about 30 seconds before repeating the attempt.

It is possible that the fuse on the electric al fuel pump is defect if the engine still
does not start. Check the fuse and replace it if necessary page 226.

Contact the nearest specialist garage to obtain professional assistance.
It may be necessary, if the engine is very hot, to slightly depress the accelerator after
the engine has started.
Diesel enginesGlow plug system
Diesel engines are equipped with a glow plug system, the preglow period being
controlled automatically in line with the coolant temperature and outside tempera-
ture.
The preglow indicator light
 comes on after the ignition has been switched on.
You should not switch on any major electrical components during the heating
period otherwise the vehicle battery will be drained unnecessarily.

You should start the engine immediately after the glow plug warning light
 has
gone out.

The glow plug warning light will come on for about one second if the engine is at a
normal operating temperature or if the outside temperature is above +5°C. This means
that you can start the engine right away.

Interrupt the attempt at starting after 10 seconds if the engine does not start right
awayand wait for about 30 seconds before repeating the attempt.

It is possible that the fuse on the diesel preglow system is defect if the engine still
does not start. Check the fuse and replace it if necessary page 226.

Contact the nearest specialist garage to obtain professional assistance.
Starting the engine after the fuel tank has run dry
It may take longer than normal to start the engine after refuelling if the fuel tank has
run completely dry - up to one minute. This is because the fuel system must first of all
be filled while the attempting to start the engine.
Switching off the engine– The engine can be switched off by turnin g the ignition key from position into
 page 107, fig. 111.
WARNING

Never switch off the engine before the vehicle is stationary - risk of accident!
WARNING (continued)
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110

The brake booster only operates when the engine is running. Greater phys-
ical effort for braking is required when en gine is switched off. Because if you do
not stop as normal, this can cause an accident and severe injuries.Caution
you should not switch the engine off right away at the end of your journey after the
engine has been operated for a lengthy period at high loads but should be allowed it
to run at idling speed for about 2 minutes. This prevents any accumulation of heat
when the engine is switched off.
Note

The radiator fan may continue running fo r a further 10 minutes or so after the
engine and the ignition have been switched off. The coolant fan may, however, also
switch on again after some time if the co olant temperature rises because of an accu-
mulation of heat in the engine or if the engine is warm and the engine compartment is
additionally heated by strong sunlight.

This is why particular care is required when carrying out any work in the engine
compartment  page 197, “Working in the engine compartment”.
Shifting (manual gearbox)
Shift into reverse only when the vehicle is stationary. Depress the clutch pedal and hold
it fully depressed. Wait a mo ment before engaging reverse gear in order to avoid any
shift noises.
The reversing lights will come on once reverse gear is engaged, provided the ignition is
on.
WARNING
Never engage the reverse gear when driving - risk of accident!
Note

One should not lay the hand on the shift lever while driving the vehicle. The pres-
sure of the hand will be transferred to the gearshift forks in the gearbox. This can, over
a period of time, lead to earl y wear of the gearshift forks.

Depress the clutch pedal fully when changi ng gears, in order to avoid unnecessary
wear and damage.
HandbrakeApplying the handbrake– Pull the handbrake lever up fully.
WARNING (continued)
Fig. 112 The shift pattern: 5-speed or 6-
speed manual gearbox
Fig. 113 Centre console: Handbrake
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Starting-off and Driving111
Using the system
Safety
Driving Tips
General Maintenance
Breakdown assistance
Technical Data
Releasing the handbrake– Pull the handbrake lever up slightly and at the same time press in the locking
button fig. 113 .
– Hold the button pressed and push the handbrake lever down fully .
The handbrake warning light
 lights up when the handbrak e is applied, provided the
ignition is on.
A warning signal sounds and the following text appears in the display* if you have inad-
vertently driven off with the handbrake applied:
Release parking brake!
The handbrake warning is acti vated 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
example, 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 firs t of all apply the handbrake firmly before
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.The audible parking aid determines the di stance between the rear bumper and an
obstacle located behind the ve hicle with the aid of ultrasound sensors. The tones of
the parking aid can be adapted in th e menu of the information display* page 25.
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
 fig. 114 ). The interval between the warning signals becomes shorter as the clear-
ance is reduced.
A continuous tone sounds from a distance of approx. 30 cm (area ) - danger area.
You should not reverse any further after this signal sounds! If the vehicle is
equipped with a factory-fitted towing device*, the border of the danger area starts -
continuous tone - 5 cm further behind th e vehicle. The vehicle can be extended
through an installed deta chable towing device.
On vehicles equipped with a factory-fitted radio* or navigation system*, the distance
to the obstruction is shown graphically in the display. On vehicles with a factory-fitted
towing device, the 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 navigation*
display. The factory-fitted radio* or navigati on system* can be set so that the play func-
tion volume decreases when activating the parking aid, see Owner's Manual radio* or
navigation system*. This improves the audibility of the parking aid.
Fig. 114 Parking aid: Detection range of
rear sensors
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