2006 SKODA OCTAVIA engine coolant

Diesel fuel
First read and observe the introductory information and safety warn-
ings on page 155.
Your vehicle can only be operated with
diesel fuel, which complies with the
standard EN
590 (standard DIN 51628 in Germany, standard ÖNORM C 1590 in
Austria, GOST R 52368-2005/EN 590:2004 in Russia).
Operation in winter - Winter-grade diesel fuel
In the winter, only use diesel fuel, which complies with the standard EN 590
(standard DIN 51628 in Germany, standard ÖNORM C 1590 in Austria,
GOST R 52368-2005/EN 590:2004 in Russia). “Winter-grade diesel fuel” will still
operate properly even at a temperature of -20 °C.
It is often the case in countries with different climatic conditions that diesel fuels
available have a different temperature characteristic. The ŠKODA Service Partners
and filling stations in the relevant country will be able to provide you with infor-
mation regarding the diesel fuels available.
Preheating fuel
The vehicle is fitted with a fuel filter preheating system. This secures operation of
a vehicle using diesel fuel down to an environmental temperature of -25 °C.
Fuel additives
Fuel additives, so-called “flow improvers” (petrol and similar products) must not
be added to the diesel fuel. CAUTION
■ Just filling the tank once with diesel fuel that does not comply with the stand-
ard, can cause severe damage to parts of the engine, the fuel and exhaust sys-
tem!
■ If a different fuel other than diesel fuel, which complies to the above mentioned
standards (e.g. petrol) is used by mistake do not start the engine or switch on the
ignition! Extensive damage to engine parts can occur! We recommend that the
fuel system is cleaned by a

ŠKODA Service Partner.
■ Water which has collected in the fuel filter can cause engine faults.
■ Your vehicle is not adapted for use of biofuel (RME), therefore this fuel must not
be refuelled and driven. The use of biofuel (RME) can cause considerable damage
to parts of the engine or fuel system. Ð
ä Engine compartment
ä
Introduction
This chapter contains information on the following subjects:
Opening and closing the bonnet 160
Engine compartment overview 160
Checking the engine oil level 161
Replenishing the engine oil 161
Changing engine oil 162
Coolant 162
Checking the coolant level 163
Replenishing the coolant 163
Radiator fan 164
Checking the brake fluid 164
Changing the brake fluid 164
Windscreen washer system 165
There is a risk of injuries, scalding, accidents and fire when working in the en-
gine compartment, e.g. inspecting and replenishing oil and other fluids. For this
reason, it is essential to comply with the warning instructions stated below and
with the general applicable rules of safety. The vehicle's engine compartment is
a hazardous area . WARNING
■ Never open the bonnet if you can see steam or coolant flowing out of the
engine compartment - risk of scalding! Wait until the steam or coolant has
stopped escaping.
■ Turn off the engine and withdraw the ignition key.
■ If the vehicle is fitted with a manual gearbox, move the gearshift lever into
Neutral, or if the vehicle is fitted with an automatic gearbox, move the selec-
tor lever into position P .
■ Firmly apply the handbrake.
■ Allow the engine to cool.
■ For safety reasons, the bonnet must always be properly closed when driving.
This is why after closing the bonnet, the lock must always be checked to en-
sure it has engaged properly. £
158 General Maintenance

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

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

Changing engine oil
First read and observe the introductory information and safety warn-
ings on page 158.
The engine oil must be changed at the intervals stated in the Service schedule or
according to the service interval indicator
» page 10, Service Interval Display.CAUTION
Additives must not be added to the engine oil - risk of causing considerable dam-
age to parts of the engine! Damage, which results from such product, are exclu-
ded from the warranty. Note
If your skin has come into contact with oil, it must be washed thoroughly. ÐCoolant
First read and observe the introductory information and safety warn-
ings on page 158.
The cooling system is filled with a coolant in the factory.
The coolant consists of water with a concentration of coolant additive of 40 %.
This mixture provides antifreeze protection down to -25
°C and also protects the
cooling and heating system from corrosion. It also prevents the formation of scale
and significantly increases the boiling point of the coolant.
The concentration of coolant must therefore not be reduced by adding water dur-
ing the summer months or in countries with a warm climate. The concentration of
coolant additive in the coolant must be at least 40 %. 40 %.
If a higher concentration of antifreeze is required for climatic reasons, the amount
of coolant additive can only be increased up to 60 % (antifreeze protection down
to approx. -40 °C). The antifreeze protection tails off above that concentration.
Vehicles exported to countries with a cold climate are already factory-filled with a
coolant which offers antifreeze protection down to about -35 °C. In these coun-
tries the concentration of coolant additive should be at least 50 %.
When refilling, we only recommend you use the same antifreeze written on the
antifreeze expansion tank » Fig. 135 on page 163.
ä
ä
Coolant capacity
Petrol engines Capacities (in litres)
1.2 ltr./77 kW TSI 7.7
1.4 l/59 kW 7.1
1.4 ltr./90 kW TSI 7.7
1.6 l/75 kW 7.4
1.8 ltr./112 kW TSI 8.6
1.8 ltr./118 kW TSI 8.6
2.0 ltr./147 kW TSI 8.6 Diesel engines
Capacities (in litres)
1.6 ltr./77 kW TDI CR 8.4
1.9 l/77 kW TDI PD 8.4
1.9 ltr./77 kW TD PD DPF 8.4
2.0 ltr./81 kW TDI CR 8.4
2.0 ltr/103 kW TDI CR DPF 8.4
2.0 ltr./125 kW TDI CR 8.4 CAUTION
■ Other coolant additives that do not comply with the correct specifications can
above all significantly reduce the anticorrosion effect.
■ Any faults resulting from corrosion may cause a loss of coolant and can conse-
quently result in major engine damage! Note
On vehicles that are fitted with an auxiliary heater (auxiliary heating and ventila-
tion), the coolant capacity is approx. 1 l larger. Ð
162 General Maintenance

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

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

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

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

Fuses in the engine compartment
Fig. 159
Fuse box cover in engine compartment/Schematic diagram of the
fuse box
First read and observe the introductory information and safety warn-
ings on page 189.
On some vehicles, the battery cover must be removed before removing the cover
for the fuse box
» page 167.
› The cover for the fuse box is removed by pushing the circlips A
» Fig. 159
up-
wards as far as the stop. The symbol  is displayed behind the clip. Now remove
the cover.
› Once the fuse has been removed, place the cover on the fuse box and push the
circlips A
back as far as the stop. The symbol
 is displayed behind the clip. The
cover is locked into position.
Fuse assignment in engine compartment No. Power consumer
F1 Not assigned
F2 Control unit for automatic gearbox
F3 Measuring circuit
F4 Valves for ABS F5 Control unit for automatic gearbox
F6 Instrument cluster, windscreen wiper lever, and turn signal lever F7 Power supply terminal 15, Starter
F8 Radio F9 Not assigned ä
No. Power consumer
F10 Engine control unit F11 Auxiliary heating and ventilation control unit
F12 Data bus control unit
F13 Engine control unit
F14 Ignition F15 Lambda probe, glow plug system
F16 Vehicle voltage control unit, right headlight, right tail light F17 Horn
F18 Amplifier for the digital sound processor F19 Windscreen wipers
F20 Coolant pump, valve for fuel dosing F21 Lambda probe
F22 Clutch pedal switch, brake pedal switch
F23 Secondary air pump, air mass meter, fuel high pressure pump
F24 Active charcoal filter, exhaust gas recirculation valve, radiator fan F25 Pump for ABS
F26 Vehicle voltage control unit, left headlight, left tail light F27 Secondary air pump, glow plug system
F28 Not assigned F29 Power supply terminal 30
F30 Terminal X a) a)
In order not to drain the battery unnecessarily when starting the engine, the electrical components
of this terminal are automatically switched off. Ð Bulbs
ä
Introduction
This chapter contains information on the following subjects:
Headlights 192
Changing the bulb for the front turn signal light 193
Changing light bulbs for front parking lights and low beam 193
Changing the bulb for the main beam 194
£
191
Fuses and light bulbs

Checking
Battery electrolyte level 167
Brake fluid 164
Coolant level 163
Engine oil 161
Oil level 161
Windscreen washer fluid 165
Children and safety 135
Child safety Side airbag 136
Child safety lock 27
Child seat Classification 136
ISOFIX 137
on the front passenger seat 135
Suitability 137
TOP TETHER 137
Chrome parts refer to Taking care of your vehicle 150
Cigarette lighter 69
Cleaning 148
Artificial leather 153
Headlight lenses 151
Material coverings 153
Materials 153
Natural leather 153
Plastic parts 150
Wheels 152
Clock 11
Clothes hooks 77
Cockpit 12-volt power socket 70
Ashtray 68
Cigarette lighter 69
General view 7
Light 45
Storage compartments 70
Compartments 70
Computer see Multifunction display 12Coolant
Checking 163
Replenishing 163
Temperature gauge 9
Correct seated position 122
Counter for distance driven 10
Cruise control system (CCS) 99
D
Dash panel insert 8
Daylight driving light 40
Deactivating an airbag 133
Deactivating an airbag 133
Defrsoting rear window 47
Delayed locking of the boot lid see Boot lid 33
Diesel refer to Fuel 158
Diesel fuel Operation in winter 158
Diesel particulate filter 23
Digital clock 11
Dipstick 161
Display Coolant temperature 9
Service interval 10
Distance driven 10
Door Child safety lock 27
Warning light for an open door 20
Doors Emergency locking 32
Driving Abroad 143
Driving through water on the street 144
Emissions 197
Fuel consumption 197 E
Economical and environmentally friendly driving 140
EDS 97
Electrical power windows Button in the driver's door 34
Electric power windows Central locking system 36
Electric sliding/tilting roof 37
Electronic Differential Lock 97
Electronic immobiliser 92
Emergency Automatic gearbox 106
Changing a wheel 179
Hazard warning light system 44
Jump-starting 185
locking of the doors 32
Selector lever-unlocking 106
Sliding roof 38
Towing the vehicle 186
Tyre repair 182
Unlocking the boot lid 34
Emissions 197
Engine Running in 139
Starting and stopping the engine 91
Engine compartment Brake fluid 164
Coolant 162
Overview 160
Vehicle battery 165
Engine oil Capacity 200
Changing 162
Checking 161
Replenishing 161
Specification 200
Engine revolutions counter 9
Environment 140
Environmental compatibility 142
209
Index