2006 SKODA OCTAVIA check engine

Note
■ The engine can only be started with a genuine ŠKODA key with the matching
code. ■ The engine running noises may louder at first be louder for a short time after
starting the cold engine. This is quite normal and is not an operating problem. ■ After switching off the ignition, the radiator fan can intermittently continue to
operate for approx. 10
minutes.
■ If the engine does not start up after a second attempt, the fuse for the fuel
pump/glow plug system (Diesel engines) may have a fault. Check the fuse and re-
place, if necessary » page 190, Fuses in the dash panel

or seek assistance from a
ŠKODA specialist garage.
■ We recommend locking the steering wheel whenever leaving the vehicle. This
acts as a deterrent against the attempted theft of your car. ÐAdjusting the steering wheel position
Fig. 93
Adjustable steering wheel: Lever below the steering wheel/safe dis-
tance to the steering wheel
First read and observe the introductory information and safety warn-
ings on page 91.
The height and forward/back position of the steering wheel can be adjusted.
›
First of all adjust the driver's seat
» page 55, Manually adjusting the front seats .
› Pull the lever below the steering wheel down
» Fig. 93 - .
› Adjust the steering wheel to the desired position (with regard to the height and
forward/back position).
› Push the lever upwards to the stop. Ð
ä Electromechanical power steering
First read and observe the introductory information and safety warn-
ings on page 91.
The power steering enables you to steer the vehicle with less physical force.
With the electromechanical power steering, the steering assist is automatically
adapted to the speed and to the steering angle.
It is still possible to fully steer the vehicle if the power steering fails or if the en-
gine is not running (vehicle being towed in). However, greater physical effort is
required to turn the steering wheel.
If there is a fault in the power steering, the warning light  or  lights up in the
instrument cluster » page 21, Electromechanical power steering   . Ð Electronic immobiliser
First read and observe the introductory information and safety warn-
ings on page 91.
An electronic chip is integrated in the head of the key. The immobiliser is deacti-
vated with the aid of this chip when the key is inserted in the ignition lock. The
electronic immobiliser is automatically activated when the ignition key is with-
drawn from the lock.
The engine will not start if a non-authorized ignition key is used.
The following is displayed in the information display: Immobilizer active. Ð
ä
ä
92 Using the system

Antilock brake system (ABS) 96
Traction control system (TCS) 96
Electronic Differential Lock (EDS and XDS) 97
WARNING
■ The brake booster only operates when the engine is running. Greater physi-
cal effort for braking is required when the engine is switched off - risk of acci-
dent!
■ Depress the clutch pedal when stopping or braking a vehicle with a petrol
engine and manual transmission in the low rev range. If you fail to do so, the
functionality of the brake booster can be impaired - risk of accident!
■ If a front spoiler, full wheel trim, etc. is mounted retrospectively, it must be
ensured that the air supply to the front wheel brakes is not reduced. Other-
wise, the functionality of the brake system could be impaired - risk of acci-
dent! ■ Please note that the handbrake must be fully released. A handbrake which
is only partially released can result in the rear brakes overheating, which can
have a negative effect on the operation of the brake system - risk of accident!
■ Never leave children unattended in the vehicle. The children might, for ex-
ample, release the handbrake or take the vehicle out of gear. The vehicle
might then move off - risk of accident!
■ A lack of fuel can cause irregular engine running or cause the engine to shut
down. The brake assist systems would then be without function - risk of acci-
dent! ■ Adjust the speed and driving style to the current visibility, weather, road and
traffic conditions. The increased safety offered by the brake assist systems
must not tempt you to take greater risks than otherwise - risk of an accident!
■ The normal braking system is still fully functional if there is an ABS fault.
Visit a ŠKODA specialist garage immediately and adjust your style of driving
according to the damage to the ABS as you will not know how great the dam-
age is and the limitation it is placing on the braking efficiency. CAUTION
■ Observe the recommendations on the new brake pads » page 139.
■ Never let the brakes slip with light pressure on the pedal if braking is not neces-
sary. This causes the brakes to overheat and can also result in a longer braking
distance and excessive wear.
■ All four wheels must be fitted with the same tyres approved by the manufactur-
er to ensure the brake assist systems operate correctly. Note
■ If the brakes are applied in full and the control unit for the braking system con-
siders the situation to be dangerous for the following traffic, the brake light
flashes automatically. After the speed was reduced below around 10 km/h or the
vehicle was stopped, the brake light stops flashing and the hazard warning light
system switches on. The hazard warning light system is switched off automatical-
ly after accelerating or driving off again. ■ Before negotiating a steep downhill section, reduce the speed, shift down into
the next lower gear (manual gearbox) or select a lower drive position (automatic
gearbox). As a result, the braking effect of the engine will be used, reducing the
load on the brakes. Any additional braking should be completed intermittently,
not continuously. ■ Changes to the vehicle (e.g. to the engine, brakes, chassis or another combina-
tion of tyres and wheels) can influence the functionality of the brake assist sys-
tems »
page 177, Accessories, changes and replacement of parts .
■ If a fault occurs in the ABS system, the ESC, ASR and EDL also do not work. A
warning light  »

page 22 comes on if a fault occurs in the ABS system. Ð Information for braking
First read and observe the introductory information and safety warn-
ings on page 93.
Wear-and-tear
The wear of the brake pads is dependent on the operating conditions and driving
style. The brake pads wear more quickly if a lot of journeys are completed in
towns and over short distances or if a very sporty style of driving is adopted. If
operated under severe conditions, the thickness of the brake pads must be
checked by a ŠKODA specialist garage before the next service appointment.
Wet roads or road salt
The performance of the brakes can be delayed as the brake discs and brake pads
may be moist or have a coating of ice or layer of salt on them in winter. The
brakes are cleaned and dried by applying the brakes several times.
Corrosion
Corrosion on the brake discs and dirt on the bake pads occur if the vehicle has
been parked for a long period and if you do not make much use of the braking
system. If the brake system is not used much or if there is corrosion on the sur-
face, we recommend cleaning the brake discs by firmly applying the brakes from a
fairly high speed. £
ä
94 Using the system

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

Driving Tips
Driving and the Environment
The first 1 500 km
New engine
The engine has to be run in during the first 1 500 kilometres.
Up to 1 000 kilometres › Do not drive faster than 3/4 of the maximum speed of the gear in use, i.e. 3/4 of
the maximum permissible engine speed.
› No full throttle.
› Avoid high engine speeds.
› Do not tow a trailer.
From 1 000 up to 1
500 kilometres
› Gradually
increase the power output of the engine up to the full speed of the
gear engaged, i.e. up to the maximum permissible engine speed.
During the first operating hours the engine has higher internal friction than later
until all of the moving parts have harmonized. The driving style which you adopt
during the first approx.1

500 kilometres plays a decisive part in the success of
running in your car.
Never drive at unnecessarily high engine speeds even after the running-in period
is complete. The maximum permissible engine speed is marked by the start of the
red scale area of the revolutions counter. On vehicles fitted with a manual gear-
box, at the very latest shift up into the next gear when the red area is reached.
During acceleration (depressing the accelerator) exceptionally high engine
speeds are automatically reduced, yet the engine is not protected against too
high engine speeds which are caused by incorrectly shifting down the gears re-
sulting in a sudden increase of the engine speeds above the permitted maximum
revolutions which can lead to engine damage.
For a vehicle fitted with a manual gearbox the converse situation also applies: Do
not drive at an engine speed that is too low. Shift down a gear when the engine
is no longer running smoothly. Observe the recommended gear » page 11, Recom-
mended gear . CAUTION
All the speed and engine revolution figures apply only when the engine is at its
normal operating temperature. Never rev up a cold engine when the vehicle is
stationary or when driving in individual gears. For the sake of the environment
Not driving at unnecessarily high engine revolutions and shifting to a higher gear
as early as possible are ways to minimise fuel consumption and operating noise
levels and protects the environment. Ð New tyres
New tyres have to be “
run in” since they do not offer optimal grip at first. Drive
especially carefully for the first 500 km or so. Ð New brake pads
New brake pads initially do not provide full braking efficiency. The brake pads
must initially be “run in

”. Drive especially carefully for the first 200 km or so. Ð Catalytic converter
Proper operation of the emission control system (catalytic converter) is of major
significance for driving your vehicle in an environmentally conscious way.
The following guidelines must be observed: › Vehicles fitted with a petrol engine must always be refueled with unleaded pet-
rol » page 156, Unleaded petrol ;
› Do not pour too much oil into the engine
» page 161, Checking the engine oil
level;
› Do not switch off the ignition while driving.
If you drive your vehicle in a country in which unleaded petrol is not available, you
must have the catalytic converter replaced later when driving the vehicle into a
country in which use of a catalytic converter is mandatory. £
139
Driving and the Environment

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

Avoid short distances
Fig. 127
Principle sketch: Fuel consump-
tion in l/100 km at different tem-
peratures
Short distances result in an above-average high fuel consumption. We therefore
recommend avoiding distances of less than 4 km if the engine is cold.
A cold engine consumes the most fuel immediately after the start. Fuel consump-
tion drops to 10 litres/100 km after just 1 kilometre. The consumption stabilises
once the engine and catalytic converter have reached their operating tempera-
ture.
An important factor in this connection is also the ambient temperature. The im-
age » Fig. 127 shows the different levels of fuel consumption after driving a cer-
tain distance at a temperature of +20 °C and a temperature of -10 °C. Your vehicle
has a higher fuel consumption in the winter than in the summer. ÐChecking tyre inflation pressures
Tyres which are correctly inflated save fuel.
Always ensure the tyre inflation pressure is correct. The rolling resistance will be
increased if the tyre filling pressure is too low. This will not only increase fuel con-
sumption but also tyre wear and the driving behaviour will worsen.
Always check the tyre inflation pressure when the tyres are cold. ÐAvoid unnecessary ballast
Transporting ballast costs fuel.
Each kilogramme of weight increases the fuel consumption. It is worth checking
the boot to avoid transporting any unnecessary ballast. It is particularly in town traffic, when one is accelerating quite often, that the ve-
hicle weight will have a significant effect upon the fuel consumption. A rule of
thumb here is that an increase in weight of 100 kilograms will cause an increase
in fuel consumption of about 1 litre/100 kilometres.
At a speed of 100 - 120 km/h, your vehicle that is fitted with a roof rack cross
member without a load will use use about 10 % more fuel than normal due to the
increased aerodynamic drag.
Ð Saving electricity
When the engine is running, the alternator generates and supplies electrical pow-
er. If more electrical components of the electrical system are switched on, more
fuel is needed to operate the alternator. We therefore recommend switching off
electrical components if these are no longer required. Ð Environmental compatibility
Environmental protection has played a major role in the design, selection of mate-
rials and manufacture of your new

ŠKODA. Particular emphasis has been placed
on the following points:
Design measures
› Joints designed to be easily detached.
› Simplified disassembly due to the modular structure system.
› Improved purity of different classes of materials.
› Identification of all plastic parts in accordance with VDA Recommendation 260.
› Reduced fuel consumption and exhaust emission CO
2.
› 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. £
142 Driving Tips

Driving through water on the street
Fig. 128
Driving through water
The following must be observed to avoid damage to the vehicle when driving
through bodies of water (e.g. flooded roads):
› Therefore determine the depth of the water before driving through bodies of
water. The water level must fit around the strut on the side member as a maxi-
mum » Fig. 128;
› Do not drive any faster than at a walking speed. At a higher speed, a water
wave can form in front of the vehicle which can cause water to penetrate into
the air induction system of the engine or into other parts of the vehicle;
› Never stop in the water, do not reverse and do not switch the engine off;
› Deactivate the START-STOP
system before driving through water » page 100,
START/STOP .WARNING
■ Driving through water, mud, sludge etc. can reduce the braking power and
extend the braking distance - risk of accident!
■ Avoid abrupt and sudden braking immediately after water crossings.
■ After driving through bodies of water, the brakes must be cleaned and dried
as soon as possible by intermittent braking. Only apply the brakes for the pur-
pose of drying and cleaning the brake discs if the traffic conditions permit this.
Do not place any other road users in jeopardy. CAUTION
■ When driving through bodies of water, parts of the vehicle such as the engine,
gearbox, chassis or electrics can be severely damaged.
■ Oncoming vehicles can generate water waves which can exceed the permissible
water level for your vehicle. ■
Potholes, mud or rocks can be hidden under the water making it difficult or im-
possible to drive through the body of water. ■ Do not drive through salt water. The salt can lead to corrosion. Any vehicle parts
that have come into contact with salt water must be rinsed immediately with
fresh water. Note
After driving through a body of water, we recommend that the vehicle is checked
by a
ŠKODA specialist garage. Ð144
Driving Tips

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