check engine light SKODA OCTAVIA 2006 Owner´s Manual

Increasing the speed with the rocker button B
›
Press the rocker button B
» Fig. 100 on page 99
into the RES position.
› The speed will increase continuously, if the rocker button is pressed and held in
the RES position. Release the rocker button once the desired speed is reached.
The set speed is then stored in the memory.
Decreasing the speed
› The stored speed can be
reduced by pressing the rocker button B
» Fig. 100
on page 99

into the position SET.
› The speed will decrease continuously, if the rocker button is pressed and held
in the SET position. Release the rocker button once the desired speed is
reached. The set speed is then stored in the memory.
› If the rocker button is released at a speed of less than 30 km/h, the speed is
not stored and the memory is erased. The speed must then be stored again by
pressing the rocker button B
in the position SET after increasing the speed of
the vehicle to more than 30

km/h.
The speed can also be reduced by depressing the brake pedal, which temporarily
deactivates the system. ÐSwitching off the cruise control system temporarily
First read and observe the introductory information and safety warn-
ings on page 99.
The cruise control system is
temporarily switched off
by pressing the switchA
» Fig. 100 on page 99
into the spring-tensioned position CANCEL or by de-
pressing the brake or clutch pedal.
The set speed remains stored in the memory.
Briefly press the rocker button B
into the position RES

to resume the stored
speed after the clutch or brake pedal is released. ÐSwitching off the cruise control system completely
First read and observe the introductory information and safety warn-
ings on page 99.
›
Turn the switch A
» Fig. 100 on page 99

into the OFF position. Ð
ä
ä START/STOP
Fig. 101
Button for the START-STOP sys-
tem
The START-STOP system helps you to save fuel while at the same time reducing
harmful exhaust emissions and CO 2 emissions.
The function is automatically activated each time the ignition is switched on.
In the start-stop mode, the engine automatically switches to the vehicle's idle
phase, e.g. when stopped at traffic lights.
Information regarding the current state of the

START-STOP system is indicated in
the display of the instrument cluster.
Automatic engine shut down (stop phase)
› Stop the vehicle (where necessary, apply the handbrake).
› Take the vehicle out of gear.
› Release the clutch pedal.
Automatic renewed engine restart (start phase).
› Depress the clutch pedal.
Switching the
START-STOP system on and off
The START/STOP system can be switched on/off by pressing the button  » Fig. 101.
When start-stop mode is deactivated, the warning light in the button lights up.
If the vehicle is in the stop phase when manually switching off the system, the
engine starts immediately.
The

START-STOP system is very complex. Some of the procedures are hard to
check without servicing. The general conditions for the proper functioning of the
START-STOP system are listed in the following overview. £
100 Using the system

Note
Observe the recommended gear » page 11, Recommended gear .ÐAvoiding full throttle
Fig. 126
Principle sketch: Fuel consump-
tion in litres/100 km. and speed
in km/h.
Driving more slowly means saving fuel.
Sensitive use of the accelerator will not only significantly reduce fuel consump-
tion but also positively influence environmental pollution and wear of your vehi-
cle.
The maximum speed of your vehicle should, as far possible, never be used. Fuel
consumption, pollutant emissions and vehicle noises increase disproportionally at
high speeds.
The » Fig. 126 shows the ratio of fuel consumption to the speed of your vehicle.
Fuel consumption will be halved if only three-quarters of the possible top speed
of your vehicle is used. ÐReducing idling
Idling also costs fuel.
In vehicles not equipped with the
START-STOP system, turn off the engine when
in a traffic jam, at a level crossing or traffic lights with longer wait times. Even af-
ter 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 emissions, though, are particularly
high in the warming-up phase. Therefore, start driving as soon as the engine has
started, whereby high engine speeds should be avoided. Ð Regular servicing
A poorly tuned engine uses an unnecessarily high amount of fuel.
By having your vehicle regularly maintained by a ŠKODA

specialist garage, you
create the conditions needed for driving economically. The maintenance state of
your vehicle has a positive effect on traffic safety and value retention
A poorly tuned engine can result in a fuel consumption which is 10 % higher than
normal.
Also check the oil level when refuelling. Oil consumption is dependent to a con-
siderable 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 has a higher oil consumption at first, and rea-
ches its lowest level only after a certain running in time. The oil consumption of a
new vehicle can therefore only be correctly assessed after driving about
5 000 km. For the sake of the environment
■ Additional improvements to the fuel economy can be made by using synthetic
high-lubricity oils.
■ Regularly check the ground under the vehicle. Have your vehicle inspected by a
ŠKODA specialist garage if you find any stains caused by oil or other fluids on the
floor. Note
We recommend that your vehicle is serviced on a regular basis by a ŠKODA Serv-
ice Partner. Ð
141
Driving and the Environment

Towing a trailer
Towing a trailer
Technical requirements
If your vehicle has already been factory-fitted with a towing device or is fitted
with a towing device from ŠKODA Original Accessories, then it meets all of the
technical requirements and national legal provisions for towing a trailer.
On vehicles with a towing device, the ball rod is detachable and is stowed togeth-
er with separate operating instructions in the spare wheel well or in the compart-
ment for the spare wheel within the boot » page 179, Vehicle tool kit .
Your vehicle is fitted with a 13-pin power socket for the electrical connection be-
tween the vehicle and trailer. If the trailer that is to be towed has a 7-pin connec-
tor, you can use a suitable adapter from
ŠKODA Original Accessories.
If a towing device is retrofitted, it must be completed in accordance with the
manufacturer's specifications. Note
If you have any questions, please contact a ŠKODA Service Partner. ÐLoading a trailer
Loading a trailer
The vehicle/trailer combination must be balanced, whereby the maximum permis-
sible drawbar load must be utilised. If the drawbar load is too low, it jeopardises
the performance of the vehicle/trailer combination.
Distribution of the load
Distribute the load in the trailer in such a way that heavy items are located as
close to the axle as possible. Secure the items from slipping.
The distribution of the weight is very poor if your vehicle is unladen and the trail-
er is laden. Maintain a particularly low speed if you cannot avoid driving with this
combination. Tyre pressure
Correct the tyre inflation pressure on your vehicle for a

“full load” » page 171,
Service life of tyres.
Trailer load
The permissible trailer load must not be exceeded under any circumstan-
ces » page 197, Technical data .
The trailer loads specified apply only to altitudes up to 1 000 metres above mean
sea level. As the engine output drops at an increasing altitude due to the declin-
ing air pressure and therefore the climbing ability is also reduced, this means that
the maximum permissible towed weight must be reduced by 10 % for every fur-
ther increase of 1 000 m in height. The towed weight comprises the actual weight
of the (loaded) towing vehicle and the (loaded) trailer. Always drive particularly
carefully with the trailer.
The trailer and drawbar load information on the type plate of the towing device
are merely test data for the towing device The vehicle-specific values are detailed
in the vehicle documents. WARNING
■ If the maximum permissible axle and drawbar load and the maximum per-
missible total or towed weight of the vehicle and the trailer are exceeded this
can cause accidents and serious injuries.
■ Slipping loads can significantly affect the stability and safety of the vehicle/
trailer combination, causing accidents and serious injuries. Ð Towing a trailer
Exterior mirrors
You have to have additional exterior mirrors fitted if you are not able to see the
traffic behind the trailer with the standard rear-view mirrors. The national legal
requirements must be observed.
Headlights
The headlight settings must be checked before starting a journey with a coupled
trailer. If necessary, adjust the settings with the headlight beam adjust-
ment » page 44 , Headlight beam adjustment .
Driving speed
For safety reasons, do not drive faster than the maximum permissible speed indi-
cated on the trailer. £
145
Towing a trailer

Immediately reduce your speed as soon as even the slightest swaying of the trail-
er is detected. Never attempt to stop the trailer from “swaying” by accelerating.
Brakes
Apply the brakes in good time! If the trailer is fitted with a trailer brake, apply the
brakes gently at first, then brake firmly. This will avoid brake jolts resulting from
the trailer wheels locking. On downhill sections shift down a gear in good time to
also use the engine as a brake.
Trailer stabilisation
The trailer stabilisation is an extension of the stabilisation control that works in
conjunction with the counter-steering assistance to reduce the amount the trail-
er "sways". After turning on the ignition, the ESC warning light  in the instru-
ment cluster lights up for about 2 seconds longer than the ABS warning light.
Prerequisites for stabilising the trailer.
› The towing device is factory-fitted or a compatible towing device has been ret-
rofitted.
› The ESC is active. The warning light
 or  in the instrument cluster is not illu-
minated.
› The trailer is electrically connected to the towing vehicle by means of the trailer
socket.
› The speed is higher than approx. 60 km/h.
› Trailers must have a fixed drawbar.
› The ESC works for both braked and unbraked trailers.
Trailer is connected to the anti-theft alarm system. › If the vehicle is factory-fitted with an anti-theft alarm system and a towing de-
vice.
› If the trailer is electrically connected to the towing vehicle by means of the trail-
er socket.
› If the electrical system of the vehicle and trailer is fully functional.
› If the vehicle is locked with the car key and the anti-theft alarm system is acti-
vated.
When the vehicle is locked, the alarm is activated as soon as the electrical con-
nection to the trailer is interrupted.
Always deactivate the anti-theft alarm system before a trailer is connected/dis-
connected. Otherwise, the anti-theft alarm system could accidentally be trig-
gered » page 31 , Anti-theft alarm system . Engine overheating
If the needle for the coolant temperature gauge moves into the right-hand area
or the red area of the scale, the speed must be reduced immediately. Stop and
switch off the engine if the warning light
 in the instrument cluster starts to
flash. Wait a few minutes and check the level of coolant in the coolant expansion
bottle » page 163, Checking the coolant level .
The following guidelines must be observed » page 20, Coolant temperature/cool-
ant level  .
The coolant temperature can be reduced by switching on the heating. WARNING
■ The increased safety offered by the trailer stabilisation must not tempt you
to take greater risks than otherwise. ■ Adapt your speed to the conditions of the road surface and to the traffic sit-
uation.
■ Improper or incorrectly connected electric cables can energise the trailer and
cause functional faults to the vehicle's entire electrical system as well as acci-
dents and severe injuries.
■ Any work on the electrical system must be carried out only by ŠKODA spe-
cialist garages.
■ Never directly connect the trailer's electrical system with the electrical con-
nections for the tail lights or other current sources. CAUTION
■ The trailer stabilisation need not be able to correctly detect all of driving situa-
tions.
■ Trailers that sway slightly are not always detected by the trailer stabilisation
and thus are not stabilised accordingly.
■ Release the pressure on the accelerator pedal if the system is being regulated.
■ Avoid abrupt and sudden driving/braking manoeuvres.
■ When the ball rod is removed, the mounting shaft must be sealed with an ap-
propriate cover. This prevents foreign matter from penetrating into the mounting
shaft. See the fitting instructions for the towing device. £
146 Driving Tips

Opening and closing the bonnet
Fig. 131
Bonnet/radiator grille release lever: Release lever Fig. 132
Securing the bonnet with the
bonnet support
First read and observe the introductory information and safety warn-
ings on page 158.
Opening
›
Pull the release lever under the dash panel 1
» Fig. 131.
Before opening the bonnet, ensure that the arms of the windscreen wipers are
correctly in place against the windscreen otherwise the paintwork could be dam-
aged.
› Pull the release lever in the direction of the arrow 2
» Fig. 131 and the bonnet
is unlocked.
› Grab hold of the bonnet and lift.
› Take the bonnet support out of its holder and secure the opened bonnet by in-
serting the end of the support in the opening 3
» Fig. 132
designed for it.
ä Closing
› Lift the bonnet slightly and unhook the bonnet support. Press the bonnet sup-
port into the holder designed to hold it.
› Let the bonnet drop into the lock carrier lock from a height of around 20 cm –
do not push it in .
Check that the bonnet is closed properly. Ð Engine compartment overview
Fig. 133
1.8 ltr./118 kW TSI Petrol engine
First read and observe the introductory information and safety warn-
ings on page 158.
Coolant expansion reservoir 163
Windscreen washer fluid reservoir 165
Engine oil filler opening 161
Engine oil dipstick 161
Brake fluid reservoir 164
Battery (below a cover) 165
Note
The location of the inspection points in the engine compartment of petrol and
diesel engines is practically identical. Ð
ä 1
2
3
4
5
6
160
General Maintenance

Checking the engine oil level
Fig. 134
Dipstick
First read and observe the introductory information and safety warn-
ings on page 158.
The dipstick indicates the level of oil in the engine
» Fig. 134.
Checking the oil level
› Ensure that the vehicle is positioned on a level surface and the engine has
reached its operating temperature.
› Switch off the engine.
› Open the bonnet.
› Wait a few minutes until the engine oil flows back into the oil sump and remove
the dipstick.
› Wipe the dipstick with a clean cloth and insert it again to the stop.
› Then pull the dipstick out again and check the oil level.
Oil level within range A
›
No oil must be refilled.
Oil level within range B
›
Oil can
be refilled. It is possible that the oil level may then be within range A
after doing this.
Oil level within range C
›
Oil must be refilled. It is sufficient, once this is done, to keep the oil level within
range B
.
It is normal for the engine to consume oil. The oil consumption may be as much as
0.5 l/1 000 km depending on your style of driving and the conditions under which
you operate your vehicle. Consumption may be slightly higher than this during the
first 5 000 kilometres. ä
One should therefore check the oil level at regular intervals, preferably every time
after the fuel tank is filled or after driving for long stretches.
We recommend maintaining the oil level within the range A
, but not above
, if
the engine has been operating at high loads, for example, during a lengthy motor-
way trip during the summer months, towing a trailer or negotiating a high moun-
tain pass.
The warning light in the instrument cluster will indicate whether the oil level is
too low » page 21, Engine oil  . In this case, check the oil level with the dip-
stick, as soon as possible. Add oil accordingly. CAUTION
■ The oil level must on no account extend beyond the range A
» Fig. 134. Risk of
damaging the exhaust system!
■  Do not continue your journey if for some reason it is not possible to top up
the engine oil under the prevailing conditions! Switch off the engine and obtain
professional assistance from a

ŠKODA specialist garage, otherwise it could cause
severe engine damage. Note
Engine oil specifications » page 200, Specifications and engine oil capacity .Ð Replenishing the engine oil
First read and observe the introductory information and safety warn-
ings on page 158.
›
Check the engine oil level
» page 161.
› Unscrew the cap of the engine oil filler opening.
› Replenish the oil in portions of 0.5 litres in accordance with the correct specifi-
cations » page 200, Specifications and engine oil capacity .
› Check the oil level
» page 161.
› Carefully screw on the oil filler opening cap and push the dipstick in fully. Ð
ä
161
Inspecting and replenishing

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

Radiator fan
First read and observe the introductory information and safety warn-
ings on page 158.
The radiator fan is driven by an electric motor and controlled according to the
coolant temperature.
After switching off the ignition, the radiator fan can intermittently continue to op-
erate for approx. 10 minutes.
ÐChecking the brake fluid
Fig. 136
Engine compartment: Brake fluid
reservoir
First read and observe the introductory information and safety warn-
ings on page 158.
The brake fluid reservoir is located in the engine compartment.
›
Switch off the engine.
› Open the bonnet
» page 160.
› Check the level of brake fluid in the reservoir
» Fig. 136. The level must be be-
tween the “MIN” and “MAX” markings.
When driving, a slight drop in the fluid level is caused by the wear-and-tear and
automatic adjustment of the brake pads, and is therefore perfectly normal.
There may be an indication of a leak in the brake system, however, if the fluid lev-
el drops significantly within a short time or if it drops below the “MIN” marking. If
the brake fluid level is too low, this is indicated by the warning light  lighting up
in the instrument cluster » page 19, Brake system .
ä
ä WARNING
If the fluid level has dropped below the MIN marking,  do not continue your
journey - risk of accident! Seek help from a
ŠKODA specialist garage.Ð Changing the brake fluid
First read and observe the introductory information and safety warn-
ings on page 158.
Brake fluid absorbs moisture. Over time it therefore absorbs moisture from the
environment. Excessive water in the brake fluid may be the cause of corrosion in
the brake system. The water content also lowers the boiling point of the brake
fluid.
The brake fluid must comply with the following standards or specifications:
› VW 50114;
› FMVSS 116 DOT4. WARNING
Using old brake fluid can result in severe stress on the brakes because of the
formation of vapour bubbles in the brake system. This greatly impairs the
braking efficiency and thus also the safety of your vehicle. CAUTION
Brake fluid damages the paintwork of the vehicle. Ð
ä
164 General Maintenance

Windscreen washer system
Fig. 137
Engine compartment: Wind-
screen washer fluid reservoir
First read and observe the introductory information and safety warn-
ings on page 158.
The windscreen washer fluid reservoir contains the cleaning fluid for the wind-
screen or rear window and for the headlight cleaning system. The windscreen
washer fluid reservoir is located in the engine compartment.
The filling level of the container is about 3
litres and about 5.5 litres on vehicles
that have a headlight washing system 1)
.
Clear water is not sufficient to intensively clean the windscreen and headlights.
We therefore recommend using clean water with a screen cleaner (including anti-
freeze in the winter) that is able to remove stubborn dirt.
Antifreeze should always be added to the cleaning water in the winter even if the
vehicle is fitted with heated windscreen washer nozzles.
Under exceptional circumstances, methylated spirits can also be used if no screen
cleaner with antifreeze is available. The concentration of methylated spirits must
not be more than 15 %. The freeze protection at this concentration is sufficient
only to -5 °C. CAUTION
■ Under no circumstances must radiator antifreeze or other additives be added to
the windscreen washer fluid.
■ If the vehicle is fitted with a headlight cleaning system, only cleaning products
which do not attack the polycarbonate coating of the headlights must be added
to the windscreen washer fluid.
ä Note
Do not remove the filter from the windscreen washer fluid reservoir when replen-
ishing it with liquid otherwise the liquid transportation system can be contamina-
ted, which can cause the windscreen washer system to malfunction. Ð Vehicle battery
ä
Introduction
This chapter contains information on the following subjects:
Battery cover 167
Checking the battery electrolyte level 167
Operation in winter 167
Charging a vehicle battery 168
Disconnecting and reconnecting the vehicle battery 168
Replacing the vehicle battery 168
Automatic load deactivation 169
Warning symbols on the vehicle battery Symbol Importance
 Always wear eye protection.
 Battery acid is severely caustic. Always wear gloves and eye protec-
tion.
 Keep fire, sparks, open flames and lit cigarettes well clear of the ve-
hicle battery.
 When charging the vehicle battery, a highly explosive gas mixture is
produced.
 Keep children away from the vehicle battery.
£1)
In some countries, 5.5 ltr. applies for both variants.
165
Inspecting and replenishing

Battery cover
Fig. 138
Engine compartment: Polyester cover of the vehicle battery/plastic
cover of the vehicle battery
First read and observe the introductory information and safety warn-
ings on page 165.
The battery is located in the engine compartment in a polyester cover
1
» Fig. 138 or in a plastic cover 2
.
› Open the battery cover in the direction of the arrow 1
or press the interlock on
the side of the battery cover in the direction of the arrow 2
, fold the cover up
and remove.
› The battery cover is installed in reverse order.
When working on the battery, the edge of the polyester battery cover 1
is inser-
ted between the battery and the side wall of the battery cover. ÐChecking the battery electrolyte level
Fig. 139
Vehicle battery: Electrolyte level
indicator
ä First read and observe the introductory information and safety warn-
ings on page 165.
We recommend you have the electrolyte level checked by a ŠKODA specialist ga-
rage from time to time, especially in the following cases.
› High outside temperatures.
› Long daily drives
› After each charge
» page 168.
On vehicles with a vehicle battery fitted with a colour indicator, the so-called
magic eye » Fig. 139, the electrolyte level can be determined by looking at the
change in colour.
Air bubbles can influence the colour of the indicator. For this reason carefully
knock on the indicator before carrying out the check.
› Black colour - electrolyte level is correct.
› Colourless or light yellow colour - electrolyte level too low, the battery must be
replaced. Note
■ The battery electrolyte level is periodically checked by a ŠKODA Service Partner
as part of the Inspection Service. ■ For technical reasons, on vehicles with the description “AGM”, the electrolyte
level cannot be checked. ■ Vehicles with a START-STOP system are fitted with a battery control unit for
checking the energy level for the recurring engine start. Ð Operation in winter
First read and observe the introductory information and safety warn-
ings on page 165.
At low temperatures, the vehicle battery only has part of the initial power output
that it has at normal temperatures.
A discharged vehicle battery may already freeze at temperatures just below 0
°C.
We therefore recommend that you have the battery checked and, if necessary, re-
charged by a ŠKODA Service Partner before the start of the winter.
Ð
ä
ä
167
Inspecting and replenishing