2008 SKODA OCTAVIA check engine light

Instruments and Indicator/Warning Lights39
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
A fault in the ABS
The system is not functioning pr
operly if the ABS warning light
 does not go out
within a few seconds after switching on the ignition, does not light up at all or lights
up while driving. The vehicle will only be braked by the normal brake system. Visit
a specialist garage as quickly as possible and adjust your style of driving in the
meantime since you will not kn ow how great the damage is.
Further information about ABS ⇒page 197, “Antilock brake system (ABS)”.
A fault in the entire brake system
If the ABS warning light
 comes on together with the brake system warning light  (handbrake must be released), there is a fault not only in the ABS but also in
another part of the brake system ⇒.
WARNING
•If the brake system warning light  comes on together with the ABS
warning light  stop the vehicle immediatel y and check the brake fluid
level in the reservoir ⇒page 231, “Brake fluid”. If the fluid level has dropped
below the MIN marking, do not drive any further - risk of accident! Contact
a Škoda dealer to obtain professional assistance.
•Pay attention to the following instructions ⇒page 225, “Working in the
engine compartment” before checking the brake fluid level and opening the
bonnet.
•If the brake fluid is at the correct level, the ABS control function has
failed. The rear wheels may then block ve ry rapidly when braking. In certain
circumstances, this can result in the rear end of the car breaking away - risk
of skidding! Drive carefully to the ne arest specialist garage and have the
fault rectified.
Bonnet 
The warning light  comes on if the bonnet is unl ocked. If the engine bonnet
unlocks while driving , the warning light lights up and an audible signal sounds.
The warning light comes on even when the ignition is switched off. The warning
light lights up for a maximum of 5 minutes. On vehicles with informatio
n display* this warning light is replaced by a vehicle
symbol ⇒page 27.
Seat belt warning light 
The warning light  comes on after the ignition is switched on as a reminder for the
driver and front passenger to fasten the seat belt. The warning light only goes out if
the driver or front passenger has fastened his seat belt.
If the seat belt has not been fastened by the driver or front passenger, a permanent
warning signal sounds at vehicle speeds greater than 20 km/h and simultaneously
the warning light
 flashes.
If the seat belt is not fastened by the dr iver or front passenger during the next 90
seconds, the warning signal is deactivated and the warning light
 lights up perma-
nently.
Further information on the seat belts ⇒page 168, “Seat belts”.
Thickness of the brake pads* 
The warning light  comes on for a few seconds 6) when the ignition is switched
on.
If the warning light
 comes on, contact a specialist garage immediately and have
the brake pads on all of the wheels inspected.
The following text will be displayed in the information display*: Check brake pads!
6)The warning light  on vehicles fitted with information display does not come on after
switching the ignition on, but only if a fault exists.
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Instruments and Indicator/Warning Lights
40
Boot lid 
The warning light  comes on when the ignition is switched on if the luggage
compartment door is open. If th e boot lid opens while driving , the warning light
lights up and an audible signal sounds.
An audible signal sounds as an additional warning signal.
The warning light comes on even when the ignition is switched off. The warning
light lights up for a maximum of 5 minutes.
On vehicles with information display* this warning light is replaced by a vehicle
symbol ⇒page 27.
Open door 
The warning light  comes on if one or several doors are opened or if the boot lid
is opened. If one of the doors opens wh ile driving, the warning light lights  up
and an audible signal sounds.
The warning light comes on even when the ignition is switched off. The warning
light lights up for a maximum of 5 minutes.
On vehicles with information display* this warning light is replaced by a vehicle
symbol ⇒page 27.
Windshield washer fluid level*
The warning light  comes on when the ignition is switched on if there is insuffi-
cient fluid in the windshield washer system. Top up with liquid ⇒page 235.
The following text will be displayed in the information display*: Add wash fluid!
Brake system 
The warning light  flashes or comes on if the brake fluid level is too low, if there
is a fault in the ABS or if the handbrake is applied.
If the warning light
 flashes and an audible signal sounds three times (handbrake
is not applied), stop and check the brake fluid level ⇒.
The following text will be displayed in the information display*: Brake fluid Owner's manual
If there is a fault in the ABS which also in fluences the function of the brake system
(e.g. distribution of brake pressure), the ABS warning light
 comes on and at the
same time the brake system warning light starts flashing . Be aware that not only
the ABS but also another part of th brake system is defective ⇒.
An audible signal sounds three times as an additional warning signal.
One should get used to high pedal forces, long braking distances and long free play
of the brake pedal when driving to the next specialist garage.
For further information on the brake system ⇒page 196, “Brakes”.
Handbrake applied
The warning light
 also comes on if the handbrake is applied. An audible warning
is also given if you drive the vehicle for at least 3 seconds at a speed of more than 6
km/h.
The following text will be displayed in the information display*:
Release parking brake!
WARNING
•Pay attention to the following instructions ⇒page 225, “Working in the
engine compartment” before checking the brake fluid level and opening the
bonnet.
•If the brake system warning light  does not go out a few seconds after
switching on the ignition or comes on when driving, stop immediately and
check the brake fluid in the reservoir ⇒page 231. If the fluid level has
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Instruments and Indicator/Warning Lights41
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
dropped below the MIN marking, do not
drive any further - risk of accident!
Contact a Škoda dealer to obtain professional assistance.
Alternator 
The warning light  comes on after the ignition has been switched on. It should go
out after the engine has started.
If the warning light does not go out after the engine has started, or comes on when
driving, drive to the nearest specialist garage. The vehicle battery will be discharged
in this case so switch off all non-essential electrical components.
Caution
If the warning light  comes on when driving and in addition the warning light 
(cooling system fault) also comes on in di splay, you must then stop the car imme-
diately and switch the engine off - risk of engine damage!
Engine oil level 
Warning light  lights up
If the warning light
 lights up, the quantity of oil in the engine is probably too low.
Check as soon as possible the oil level or top up ⇒page 228, “Replenishing engine
oil” with engine oil.
A peep sounds as an addi tional warning signal.
The following text will be displayed in the information display*: Check oil level!
The warning light will go out if the bonnet is left open for more than 30 seconds. If
no engine oil has been replenished, the warning light will come on again after
driving about 100 km. Warning light
 flashes
A fault on the engine oil level sensor is in dicated additionally by an audible signal
and the warning light coming on several ti mes after the ignition has been switched
on.
In this case have the engine inspecte d without delay by a specialist garage.
The following text will be displayed in the information display*: Oil sensor Workshop!
Fuel reserve 
The warning light  comes on, if the fuel level is still below 9 litres.
An audible signal sounds as an additional warning signal.
The following text will be displayed in the information display*: Please refuel! Range...km
Note
The Text in the information display* goes out only after refuelling and driving a
short distance.
WARNING (continued)
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Heating and air conditioning system115
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
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 on the air conditioning system has blown. Check the fuse, replace it if
necessary ⇒page 257.
•The cooling system has switched off automatically for a short time because the
coolant temperature of the engine is too hot ⇒page 18.
If you are not able to rectify the operat ional problem yourself, or if the cooling
capacity decreases, switch the cooling sy stem off. Contact a specialist garage.
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 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
eliminates the need to alte r the settings manually. The automatic mode
¨ ⇒ page 117 ensures maximum wellbeing of th e 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,
• switched on.
If the cooling system is switched on, th e 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 temperatur es and a high air humidity. The system
prevents the windows misting up during the cold season of the year.
The heating effect is dependent upon th e coolant temperature, thus full heat
output only occurs when the engine has reached its operating temperature.
It is possible to briefly activate recirc ulated air mode in order to enhance the
cooling effect ⇒page 118.
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 below 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 116, fig. 140 .
•Move the air outlet vents 3 and 4 so that the air flow is directed slightly upwards.
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 108, fig. 136.
The ventilation functions only when the sliding/tilting roof is closed.
AC
AUTO
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Starting-off and Driving
126
Starting the engine
General
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.
•The clutch pedal should be fully depressed when starting the engine which
means that the starter only has to crank the engine.
•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 no rmal 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 252.
It is only possible to tow-start vehicles fitted with a manual gearbox. The tow-
starting distance must not be more than 50 metres ⇒page 256.
WARNING
•Never run the engine in non ventilat ed or enclosed areas. The exhaust
gases of the engine contain besides the odorless and colourless carbon
monoxide a poisonous gas - hazard! Carbon monoxide can cause uncon-
sciousness and death.
•Never leave your vehicle unattended with the engine running.
Caution
•The starter may only be operated (ignition key position ), if the engine is not
running. If the starter is immediately 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 conver ter 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 emissions are lower.
Petrol engines
These engines are fitted with a starter system which selects the correct fuel/air
mixture for every external air temperature.
•Do not operate accelerator befo re 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 electrical fuel pump is defect if the engine still
does not start. Check the fuse and replace it if necessary ⇒page 257.
•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 engines
Glow 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 temper-
ature.
The preglow indicator light
 comes on after the igniti on has been switched on.
A3
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Starting-off and Driving127
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
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 th e 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 257.
•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 turning the ignition key from posi- tion into ⇒page 125, fig. 146 .
WARNING
•Never switch off the engine before the vehicle is stationary - risk of acci-
dent!
•The brake booster only operates when the engine is running. Greater
physical effort for braking is required when engine 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 peri od 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 coolant temperature rises because of an
accumulation 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 225, “Working in the engine compartment”.
Shifting (manual gearbox)
Shift into reverse only when the car is stationary. Depress the clutch pedal and hold
it fully depressed. Wait a moment before engaging reverse gear in order to avoid
any shift noises.
A1
Fig. 147 The shift pattern: 5-
speed or 6-speed manual
gearbox
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Driving and the Environment
204
Avoiding full throttle
Driving more slowly means saving fuel.
Sensitive use of the accelera tor will not only significantly reduce fuel consumption
but also positively influence environmen tal pollution and wear of your vehicle.
You should avoid fully exploi ting the top speed of your vehicle wherever possible.
Fuel consumption, pollutant emissions and vehicle noises increase disproportion-
ally at high speeds.
The ⇒fig. 202 shows the ratio of fuel consumption to the speed of your vehicle.
You will cut your fuel consumption by half if you only make use three-quarters of
the possible top speed of your vehicle.
Reducing idling
Idling also costs fuel.
It is worthwhile switching off the engine in a traffic jam or when waiting at a level
crossing or at traffic lights with a length y red phase. Even after just 30 - 40 seconds
you will have saved more fuel than that is needed when you start the engine up
again.
If an engine is only idling it takes much longer for it to reach its normal operating
temperature. Wear-and-tear and pollutant em issions, though, are particularly high in the warming-up phase. This is why you
should drive off right after starting the
engine. Do avoid high engine revolutions at this time, however.
Regular servicing
A poorly tuned engine consumes an unnecessarily high amount of
fuel.
Having your vehicle serviced regularly at a specialist garge enables you to satisfy
one of the requirements for economical moto ring even before you set off on your
journey. Keeping your vehicle properly servic ed not only has a positive effect on the
safety of your vehicle and maintaining its value, but also saves on fuel.
A poorly tuned engine can result in a fuel consumption which is 10% higher than
normal.
The foreseen maintenance work should be undertaken exactly according to the
Service schedule by a specialist garage.
Also check the oil level after refueling. Oil consumption is dependent to a consid-
erable extent on the load and speed of the engine. Oil consumption could be as
high as 0.5 litres/1 000 km depending on your style of driving.
It is quite normal that a new engine ha s a higher oil consumption at first, and
reaches its lowest level only after a certain running in time. It is therefore not
possible to correctly assess the oil cons umption of a new vehicle until after you
have driven about 5 000 km.
For the sake of the environment
•You can achieve additional improvements in your fuel economy by using high-
lubricity oils.
•Check the ground below your car at regula r intervals to detect any leakages in
good time. Please have your vehicle inspected by a specialist garge if you find any
stains caused by oil or other fluids on the floor.
Fig. 202 Fuel consumption
in litres/100 km. and speed in
km/h.
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Driving and the Environment
206
Keeping a log of your fuel consumption
If you really wish to ke ep a close check on your fuel consumption, it is best to enter
the figures in a logbook. This does not take much time but is a very worthwhile exer-
cise. It enables you to detect any change (positive and negative) at an early stage
and to take any appropriate action.
If you find that your fuel consumption is too high, you sh ould reflect on how, where
and in what conditions you have driven the vehicle since you last refuelled.
Environmental compatibility
Environmental protection has played a majo r role in the design, selection of mate-
rials and manufacture of your new Škoda. Particular emphasis has been paid to a
number of aspects, including:
Design measures
•Joints designed to be easily detached.
•Simplified disassembly due to the modular structure system.
•Improved purity of differ ent classes of materials.
•Identification of all plastic parts in accordance with VDA Recommendation 260.
•Reduced fuel consumption and exhaust emission CO2.
•Minimum fuel leakage during accidents.
•Reduced noise.
Choice of materials
•Extensive use of recyclable material.
•Air conditioning filled with CFC-free refrigerant.
•No cadmium.
•No asbestos.
•Reduction in the “vaporisation” of plastics.
Manufacture
•Solvent-free cavity protection.
•Solvent-free protection of the vehicle for transportation from the production
plant to the customer.
•The use of solvent-free adhesives.
•No CFCs used in the production process.
•Without use of mercury.
•Use of water-soluble paints.
Motoring abroad
General
Other circumstances may exist abroad.
It is also possible, in ce rtain countries, that the Škod a Service Partner network is
limited or has not been established yet. This is the reason why obtaining certain
spare parts may be somewhat complicated and specialist garage personnel may
only be able to ma ke li mite d re pa irs. Škoda Auto a.s. i n the Czech Republic and rele -
vant importers are happy to provide info rmation about technical aspects of the
vehicle, required maintenance work and possibilities for getting repairs done.
Unleaded petrol
A vehicle fitted with a petrol engine must always be refuelled with unleaded petrol
⇒ page 202. The automobile associations can provide you with information
regarding the locations of filling stations which offer unleaded petrol.
Headlight
The low beam of your headlights is set asym metrically. It illuminates the side of the
road on which you are driving to a greater extent. If you drive abroad on the other
side of the road, you wi ll dazzle oncoming traffic.
In order to prevent the dazzling of oncoming traffic, it is necessary that an adjust-
ment of the headlights is carried out by your Škoda Service Partner.
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