2004 SKODA OCTAVIA TOUR engine

128GENERAL MAINTENANCE
FuelPetrol enginesUnleaded petrol conforming to DIN EN
228 RON 91, 95 and 98
1)
Notes

Use only high-quality fuel.

Unleaded petrol RON 91 (95)
1) can be
used although engine output in this case is
slightly reduced.

Fuels with a higher octane number than
specified can be used without restrictions.
This does not offer any advantages in re-
spect of engine output and fuel con-
sumption, however!
1) This applies to Octavia RS and Octavia Estate
RS
Cars with a catalytic converter must only be driven with unleaded fuel.
Using fuels which contain lead results in a
lead deposit forming in the catalytic con-
verter.
Even refuelling only once with lea-
ded petrol destroys the effect of the
catalytic converter.
Even if the fuel tank is then again filled with
unleaded fuel, the original efficiency of the
catalytic converter is no longer achieved.
The operation, power output and dura-
bility of the engine are affected to a ma-
jor extent by the quality of the fuel. Do
not mix any additives into the fuel. Use
only fuel which complies with official
standards.
Diesel enginesDiesel fuel complying with DIN EN 590.
Cetane number not less than 49.
Driving in winter
Winter-grade diesel fuel
In winter a different grade of diesel fuel is
available at filling stations than during the
summer months. If „summer-grade diesel
fuel“ is used, operational problems may
occur at temperatures below 0 °C because
the diesel becomes too viscous as a result
of paraffin separation. „Winter-grade die-
sel fuel“, in contrast, is still fully operational
down to -20 °C.
In countries with different climatic condi-
tions, it is quite common to find diesel fu-
els which have a different temperature
characteristic. Škoda Dealers, and filling
stations in the particular country, will pro-
vide you with further information regarding
the diesel fuels which are available in that
country.
Biodiesel
We recommend refueling with diesel fuel
at temperatures below -10 °C.

129
GENERAL MAINTENANCE
Care of carRegular, professional care is a way of re-
taining the value of your car.
In addition, it may also be one of the re-
quirements for a warranty claim in the event
of possible corrosion damage and paint
defects on the body.
The care products required are available
as Original Accessories from Škoda. Al-
ways follow the instructions for use stated
on the packaging.Warning

If misused, car care products can
be harmful to health.

Car care products should always
be stored in a safe place where they
are out of the reach of children.
When buying car care products, al-
ways select products which have
been designed to minimize pollution of the environment. Do not dispose of carcare products in domestic refuse.
Fuel filter preheater
The car is equipped with a fuel filter pre-
heater. This ensures proper operation of the
fuel system down to about -25 °C when
using winter-grade diesel fuel which is re-
sistant to temperatures down to -15 °C.
Should the engine no longer start at tempe-
ratures below -25 °C, it is sufficient to park
the car for a certain time in a heated area.
Fuel additives (flow improvers) and simi-
lar products must not be added to the
diesel fuel.
Use only fuel, which complies with offi-
cial standards. Even refueling only once
with fuel which does not comply with of-
ficial standards can lead to damage in
the fuel system.
Biodiesel (PME1 fuel) conforming to
DIN EN 14 214
1)
Cetane number at least 49
Vehicles with diesel engines can also be
operated with biodiesel. The term biodiesel
specifies methyl ester from rape oil, which
must comply with the requirements of the
standard DIN EN 14 214
1).
Warning
Filling the tank even only once with
biodiesel, which deviates from the
standard DIN EN 14 2141), can lead to
damage in the fuel system. Particular features of PME fuel
Biodiesel is manufactured from vegetable
oil using a chemical process.
Biodiesel is sulphur-free which is why no
sulphur dioxide (SO
2) is released when it
is combusted.
The exhaust gas contains less
- carbon monoxide (CO)
- hydrocarbons (HC)
- particulates (e.g. soot)
than when the engine is operated with a
conventional diesel fuel.
If biodiesel is used, the vehicle performance
may be slightly lower and, on the other hand,
fuel consumption may be slightly higher.
Biodiesel is biologically degradable.
PME fuel according to DIN EN 14 214
1) can
be mixed in any desired ratio with diesel
fuel conforming to DIN EN 590.
Driving in winter
PME fuel is suitable for use in winter only
down to -10 °C.
Fuel additives (flow improvers) and simi-
lar products must not be added to the
biodiesel fuel.
1)Not valid for vehicles with EU4, see Technical
Data

134GENERAL MAINTENANCECleaning engine compartmentWarning
Before carrying out any work in the
engine compartment, it is essential
to read the Notes on page 137.
Good corrosion protection is very important,
particularly in winter when road salts are fre-
quently used. For this reason, the entire en-
gine compartment and the plenum chamber
should be thoroughly cleaned before and af-
ter the winter months and then treated with a
wax preserver so that the road salt cannot
produce any harmful effects.
The ignition must be switched off before
washing the engine.
It is recommended to cover over the al-
ternator before washing the engine com-
partment.
As petrol, grease and oil residues are washed off when cleaning the
engine, the dirty water has to be cleaned in an oil separator. For this reason, anengine wash should only be carried outin a workshop or at a service station (if
these are appropriately equipped).
Škoda Dealers have available the factory-
recommended cleaning and wax treatment
products and are equipped with the nec-
essary facilities.Underbody sealantThe underside of your car is durably protec-
ted against chemical and mechanical influ-
ences.
As it is not possible, however, to totally rule
out the likelihood of the underbody sealant
being damaged from driving, it is recom-
mended to have the protective layer on the
underside of the car touched up at certain
intervals. This is best done before the start
of the winter and in the spring.
Škoda Dealers have available the suitable
sealant products and the equipment nec-
essary and are acquainted with the instruc-
tions for use. For this reason, it is best to
have any touch-up work or additional cor-
rosion protection measures carried out by
your Škoda Dealer.
No underbody sealant should be applied to
the heat shields of the catalytic converter
and to the exhaust pipes because of the
high temperatures in the area of the cata-
lytic converter (risk of fire). It is also not
permitted to remove the heat shields.
Cavity protectionAll the cavities of the vehicle which are at
risk from corrosion are durably protected
before the car leaves the factory.
The cavity protection does not require to
be inspected or touched up. If any wax flo-
ws out of the cavities at high outside tem-
peratures, this can be removed with a plas-
tic scraper. Any stains can be removed with
white spirits.
Pay attention to the relevant safetyand environmental protection regu-
lations if white spirits is used to remove
wax and stains.

136GENERAL MAINTENANCE1.6-ltr./74 kW petrol engine
1 - Coolant expansion reservoir
2 - Reservoir for hydraulic fluid of powersteering
3 - Windscreen washer reservoir
4 - Engine oil dipstick
5 - Engine oil filler opening
6 - Brake fluid reservoir
7 - Battery 1.9-ltr. TDI 66 kW/81 kW diesel engine
1 - Coolant expansion reservoir
2 - Reservoir for hydraulic fluid of power
steering
3 - Windscreen washer reservoir
4 - Engine oil dipstick
5 - Engine oil filler opening
6 - Brake fluid reservoir
7 - Battery
The arrangement in the engine compart-
ment is largely identical on all petrol and
diesel engines.

137
GENERAL MAINTENANCE
Warning
Particular care is required when per-
forming work in the engine compart-
ment!

Never open the bonnet if you see
that steam or coolant is escaping
from the engine compartment - risk
of scalding!
You must wait long enough, until the
steam or coolant has stopped escap-
ing.

Switch off engine and withdraw ig-
nition key.

Apply handbrake properly.

Move gearshift into Neutral (on
models with automatic gearbox mo-
ve selector lever into position „P“).

Allow engine to cool down.

If the engine is still warm:
- do not place your hand into the ra- diator fan, it might start suddenly.
- do not open filler cap of coolant reservoir as cooling system is
pressurized - risk of scalding.

Avoid short circuits in the electri-
cal system - particularly at the bat-
tery!

If you wish to work under the ve-
hicle, you must secure the vehicle
from rolling away and support it with
suitable supporting blocks: the car
jack is not sufficient for this - risk of
injury!

If it is necessary to carry out test
work when engine is running, there
is an additional risk from rotating
parts - e.g. ribbed belt, alternator,
radiator fan etc. - and from the high-
voltage ignition system.

Never touch the electrical cables
of the ignition system.

Absolutely avoid any jewellery,
loose items of clothing or long hair
from getting into the rotating parts of
the engine - Hazard! Therefore re-
move any jewellery beforehand, tie
up your hair and wear tight fitting
clothing.
It is essential to comply with all the
warning information given in this
manual and with the general rules of
safety when carrying out work on the
engine.
When topping up fluids, ensure that no mix-
ups occur otherwise this may cause severe
operating problems!
The floor below the car should be
inspected regularly in order to de-
tect leaks in good time. If patches of oil or other fluids are visible, the car shouldbe taken to a Škoda Dealer for an inspec-
tion.

138GENERAL MAINTENANCE
LongLife Service*The LongLife Service ensures that your
vehicle is always in proper roadworthy con-
dition while requiring only minimal effort on
your part.
The LongLife Service is determined on the
basis of:
- Oil level and pressure sensor - see page 59
- Brake wear indicator - see page 58
- Engine oils complying with the standard VW 503 00 (petrol engines), VW 506 00
(diesel engines, except PDi engines)
and VW 506 01 (diesel engines) - see
page 138
- Variable service interval display - see page 49
- Battery with so-called „magic eye“ - see page 148.
Further information - refer to Service Sche-
dule. More detailed information is also
available from your Škoda Dealer.
SpecificationThe engine is factory-filled with a brand-
name multigrade oil which can be used as
an all-seasons oil - except in extremely cold
climatic zones. Oils may also be intermixed
when topping up (does not apply to mod-
els with LongLife Service*).
We recommend using oils from the selec-
tion of original oils available at Škoda.
Note
Engine oils naturally also undergo continu-
ous further development. That is why the
information contained in this Owner’s
Manual reflects the technical status at the
time of publication.Engine oil
Škoda Dealers are kept up-to-date by the
factory regarding any changes. It is there-
fore good practice to have the oil change
carried out at a Škoda Dealer.

139
GENERAL MAINTENANCE
Models with fixed service intervals (QG0, QG2) for oil
change
DesignationSpecification for Specification for
petrol engines diesel engines
Multigrade high- VW 500 00 VW 505 00
1)
lubricity oils VW 502 00 VW 505 01
VW 501 01
Multigrade oils ACEA A2
2)
ACEA B3
2)
or A3
2)
or B4
2)
Models with variable service intervals (QG1)* for oil
change
Specification
Petrol engines VW 503 00
Diesel engines VW 506 00
1)
VW 506 01
Warning
Models with variable service intervals (QG1) must only use
the above specified oils. It is recommended for the preser-
vation of the specified properties of the oils conforming to
specification, only engine oil with the same specification
may be used for replenishing. In exceptional cases, only
use engine oil conforming to specification VW 502 00 (only
petrol engines) or conforming to specification VW 505 01
(only diesel engines) for topping up to max. 0.5 ltr. Other
engine oils must not be used - risk of engine damage.
Before a long drive, we recommend that you purchase and
carry with you engine oil which complies with the specifica-
tion for your vehicle. Consequently, you will always have the
correct engine oil for refilling.
We recommend using oils from the range of Škoda Genuine
Oils offered by your Škoda Dealer.
For further information - see Service Schedule.
1)Except PDi engines (engines with unit injection)2)This oil may be used only once for topping up within the specified oil c\
hange
cycle if no approved engine oil is available.

140GENERAL MAINTENANCE
The car should be standing horizontally
when checking the oil level. Wait a few min-
utes after switching off the engine to allow
the oil to flow back into the sump.
Then, withdraw the dipstick, wipe it off with
a clean cloth and re-insert it fully.
After this, once again withdraw the dipstick
and read off the oil level:
a- Oil must be topped up.
After topping up, it is sufficient if the oil
level is somewhere in the range b.
b - Oil may be topped up.
After topping up, the oil level may then
be in the range c.
c - Oil must not be topped up.
If the engine is driven particularly hard, as
for example during long trips on motorways
in summer, when towing a trailer or driving
over mountain passes, the oil level should
be kept within the range c if possible - not
above .Topping up engine oilUnscrew the cap 2 of the oil filler opening
in the cylinder head cover and pour in the
quantity of oil needed. Check the oil level
with the dipstick. The oil level must on no account be hig-
her than the range „c“.
Otherwise, oil may
be drawn into the combustion chamber and
passed through the exhaust system to at-
mosphere. This can have a detrimental ef-
fect on combustion and on the operating
life of the catalytic converter.
Warning
When topping up the oil, do not spill
it onto hot engine components - dan-
ger of fire.
Carefully close the cap of the filler opening
and fully insert the dipstick into the inspec-
tion hole. Otherwise, oil might flow out when
the engine is running.
In the event that you do not have enough
fuel, do not drive any further. Switch off
the engine and contact a Škoda Dealer for
professional assistance, otherwise there is
a risk of serious engine damage.
The illustration shows part of an engine
compartment with the 2.0-ltr./85 kW engine.
For further information regarding the ar-
rangement in the engine compartment - see
page 136.
Checking oil levelIt is normal that the engine consumes a cer-
tain
quantity of oil . The oil consumption
may be as much as 0.5 ltr/1000 km if oper-
ating conditions are disadvantageous (e.g.
when driving in town) - see also page 119.
The engine oil level should therefore be
checked at regular intervals. This is best
done each time you refuel and before a long
journey.
The position of the dipstick 1 is shown in
the illustration.