engine SKODA OCTAVIA 2010 2.G / (1Z) Workshop Manual

Driving and the Environment177
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guidelines given in this chapter in order to
make best use of these characteristics and
to maintain their effectiveness.
The optimal engine speed should be obtained when accelerating, in order to avoid a
high fuel consumption and resonance of the vehicle.
Looking ahead when driving
A vehicle's highest fuel consumption occurs it accelerates.Avoid accelerating and braking unnecessarily. If you drive with forsight you will not
need to brake so often and will also then not have to accelerate so much. Let your
vehicle coast to a stop, for example, if this is possible, when you see that the next set of
traffic lights is at red.Shifting gears and saving energy
Shifting up early saves on fuel.Manual gearbox– Drive no more than about one length of your vehicle in first gear.
– Always shift up into the next higher gear at approx. 2 000 to 2 500 revs.Automatic gearbox– Depress the accelerator pedal slowly. Do not depress it beyond the kickdown
position, however. An effective way of achieving good fuel economy is to shift up
early. You will consume
more fuel if you drive at unnecessaril y high revolutions in any given gear.
The fig. 153 shows the ratio of fuel consumption to the speed of your vehicle in the
relevant gears. Fuel consumptio n in 1st gear is the highest, while that in 5th or 6th gear
is the lowest.
Only depress the accelerator pedal slowly if your vehicle is fitted with an automatic
gearbox in order to automatically select an economic driving programme. You will
achieve good fuel economy by shifting up early and shifting down late.
Note
Also use the information supplied by the multi-functional indicator* page 19.Avoiding full throttle
Driving more slowly means saving fuel.Sensitive use of the accelerator will not only significantly reduce fuel consumption but
also positively influence environmenta l pollution and wear of your vehicle.
You should avoid exploiting the top speed of your vehicle wherever possible. Fuel
consumption, pollutant emissions and vehicl e noises increase disproportionally at
high speeds.
The fig. 154 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.
Fig. 153 Fuel consumption in litres/100
km. and speed in km/h.
Fig. 154 Fuel consumption in litres/100
km. and speed in km/h.
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Driving and the Environment
178
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 lengthy red phase. Even after just 30 - 40 seconds you
will have saved more fuel th an 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 emis sions, 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 revolu tions 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 motoring even before you set off on your journey.
Keeping your vehicle properly serviced not on ly 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 fu el 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 consider-
able extent on the load and speed of the en gine. 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 reaches
its lowest level only after a certain running in time. It is therefore not possible to
correctly assess the oil consumption 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 vehicle at regular intervals to detect any leakages in
good time. Please have your vehicle inspec ted by a specialist garge if you find any
stains caused by oil or other fluids on the floor.
Avoid driving short distances
Short distances result in an above-average high fuel consumption.– Avoid driving a distance of no more than 4 km if the engine is cold.
The engine and catalytic converter mu st first have reached their optimal operating
temperature in order to effectively reduce fuel consumption and pollutant emissions.
The cold engine vehicle cons umes approx. 15 - 20 litres/100 km of fuel immediately
after starting. Fuel co nsumption drops to 10 litres/100 km after just 1 kilometre. The
engine reaches its operating temperat ure (outside temperature and engine
dependent) only after about 4 to 10 kilometres and the fuel consumption then stabi-
lizes. You should therefore avoid driving short distances whenever possible.
An important factor in this connection is also the ambient temperature. The
 fig. 155 shows the different fuel consumptions for the same distance, on the one
hand at +20°C and on the other hand at -10°C. Your vehicle has a higher fuel
consumption in winter than in summer.
Fig. 155 Fuel consumption in litres/100
km at different temperatures
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Driving and the Environment179
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Checking tyre inflation pressures
Tyres which are correctly inflated save fuel.Always ensure that your tyres are inflated to the correct pressure at all times. The rolling
resistance will be increased if the tyre filling pressure is too low. This will not only
increase fuel consumption but also tyre we ar and the driving behaviour will worsen.
Always check the inflation pr essure of the tyres when cold.
Do not drive with winter tyres all year round for this costs about 10 % more fuel.
Winter tyres are also louder.No unnecessary ballast
Transporting ballast costs fuel.The fact that every kilogram of extra weight increases your fuel consumption means
that it is worth taking a look in the luggage compartment to avoid transporting any
unnecessary ballast.
It is particularly in town traffic, when one is accelerating quite often, that the vehicle
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 consump-
tion of about 1 litre/100 kilometres.
You may frequently also leave a roof rack fitted on just out of convenience, although
you no longer need it. The increased aerodyna mic drag of your vehicle causes it to use
about 10% more fuel than normal at a speed of 100 - 120 km/h, even when you are not
carrying a load on the roof.Saving electricity
Generating electricity costs fuel.– Switch off electrical components as soon as you no longer need them.
When the engine is running, the alternator generates and supplies electrical power.
The greater the load on the alternator as a result of having a large number of electrical
components switched on, the more fuel will be consumed for operating the
alternator.
Keeping a log of your fuel consumptionIf you really wish to keep 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 (p ositive and negative) at an early stage and
to take any appropriate action.
If you find that your fuel consumption is too high, you should reflect on how, where
and in what conditions you have driven the vehicle since you last refuelled.Environmental compatibilityEnvironmental protection has played a major role in the design, selection of materials
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 CO
2.

Minimum fuel leakage during accidents.

Reduced noise.
Choice of materials

Extensive use of re cyclable material.

Air conditioning filled with CFC-free refrigerant.

No cadmium.

No asbestos.

Reduction in the “vaporisation” of plastics.
Manufacture

Solvent-free cavity protection.
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Driving and the Environment
180

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.
Trade-in and recycling of old cars
Škoda Auto meets the requirements of the brand and its products regarding environ-
ment and ressource protection. All new Škoda vehicles can be utilized up to 95% and
always
15) be returned. In a lot of countries sufficient trade-in networks have been
created, where you can trade-in your vehicle. After you trade-in your vehicle, you will
receive a confirmation stating the recycling in accordance with environmental regula-
tions.
Vehicles with special built-on types
Technical documents regarding changes carried out on the vehicle must be kept by the
vehicle user, in order to hand over later to the old car user. This ensures the recycling
in accordance with en vironmental regulations.
Note
Detailed information about the trade-in and recycling of old cars is available from a
Škoda Service Partner.Motoring abroadGeneral
Other circumstances may exist abroad.It is also possible, in certai n countries, that the Škoda 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
make limited repairs. Škoda Auto in the Czech Republic and relevant importers are happy to provide information about technical
aspects of the vehicle, required mainte-
nance work and possibilities for getting repairs done.
Unleaded petrolA vehicle fitted with a petrol engine must always be refuelled with unleaded petrol
 page 176. The automobile associations can provide you with information regarding
the locations of filling stations which offer unleaded petrol.HeadlightThe low beam of your headligh ts is set asymmetrically. It illuminates the side of the
road on which you are driving to a greater ex tent. If you drive abroad on the other side
of the road, you will da zzle oncoming traffic.
In order to prevent the dazzling of oncoming tr affic, it is necessary that an adjustment
of the headlights is carried out by your auth orised Škoda Service Partner.
The adaptation of the headlights with Xenon lights* (applies only to vehicles which are
designed for driving on the left and on the right) is performed in the menu Setup
Lights & Vision & Tra v e l m o d e in the main menu of the information display*
 page 22.Avoiding damage to your vehicleWhen driving on poor roads and lanes or when driving over kerbstones, steep ramps
etc., you must pay particular attention to ensuring that any low-slung parts of the
vehicle, such as spoiler and exhaust, do not touch the ground and get damaged.
This particularly applies to models with a lowered suspension (sport suspension) and
also when your vehicle is fully laden.
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Driving and the Environment181
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Driving through bodies of water on roadsIn order to avoid damage to the vehicle wh en driving through bodies of water (e.g.
flooded roads), observe the following:
Determine the depth of the water when driv ing through bodies of water. The water
can reach at the maximum the web on the lower sill of the vehicle fig. 156 .

Drive no more than at 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 let the vehicle stand in the water, never drive backwards and do not switch
off the engine.
WARNING

Driving through water, mud, sludge etc. can reduce the braking power and
extend the braking distance - risk of accident!

Avoid sudden and severe braking manoeuvres immediately after driving
through bodies of water.

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
purpose 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, pa rts of the vehicle such as the engine,
gearbox, catalytic converter, 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 impos-
sible to drive through the body of water.

Do not drive through salt water. The salt can lead to corrosion. Immediately rinse
all the parts of the vehicle, which came into contact with the salt water, with fresh
water.Note
After driving through a body of water, we recommend that the vehicle is checked by a
specialist garage.
Fig. 156 Crossing bodies of water
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Towing a trailer183
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Headlights
Before starting off with a hitched trailer, also check the setting of the headlights. Alter
the setting as necessary with the ai
d of the headlight beam adjuster page 56.
Detachable ball head
The ball rod is detachable on vehicles which feature a factory-fitted towing device. It is
stowed together with separate fitting instru ctions in the spare wheel well in the luggage
compartment of the vehicle.
Further information on the towing device page 184.
Note

We recommend that you also have your vehicle inspected between service inter-
vals if you tow a trailer frequently.

The handbrake on the towing vehicle must be put on when coupling and decou-
pling the trailer.
Driving Tips
Particular caution is required when towing a trailer.– Do not, as far as possible, drive with your vehicle unladen and the trailer laden.
– Do not make full use of the legal maximum speeds. This applies in particular to downhill sections.
– Apply the brakes in good time.
– Keep a check on the coolant temperature gauge if the outside temperature is high.
Distribution of weight
The distribution of the weight is very poor if your vehicle is unladen and the trailer is
laden. Maintain a particularly low speed if you cannot avoid driving with this combina-
tion.
Driving speed
Do not drive faster than 80 km/hour for safety reasons. This also applies for countries
in which higher speeds are allowed. The fact that the driving stability of the vehicle + trailer combination reduces with
increasing speed means that the legally allowed speed should not be used when there
are unfavourable road, weather or wind cond
itions, particularly near accident black
spots.
You must always reduce your speed immediat ely as soon as you detect even just the
slightest swaying of the trailer. On no account attempt to stop the trailer from
“swaying” by accelerating.
Apply the brakes in good time! If the trailer is fitted with a trailer brake, apply the
brakes gently at first and then brake firmly. This will avoid brake jolts resulting from the
trailer wheels locking. Shift down gears in good time before negotiating a downhill
section to allow the engine to also act as a brake.
Engine overheating
Please keep a check on the coolant temperature gauge if you have to negotiate a
lengthy slope in a low gear at a high engi ne speed when the outside temperature is
very high  page 16, “Coolant temperature gauge”.
If the needle of the coolant temperature gauge moves into the right-hand area or even
the red area of the scale, reduce your speed immediately. Stop and switch off the
engine if the warning light
 in the instrument cluster begins flashing. Wait a few
minutes and check the level of coolant in the coolant expansion bottle page 201,
“Inspecting the coolant level”.
Please refer to the following guidelines  page 31, “Coolant temperature/coolant
level ”.
The coolant temperature can be reduced by switching on the heating.
Any increase in the cooling effect of the coolant fan through shifting down a gear and
increasing the engine speed is not possible since the fan speed is independent of the
engine speed. One should also not drop a gear for this reason when towing a trailer as
long as the engine can manage th e slope without any drop in speed.
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Taking care of your vehicle and cleaning the vehicle189
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Underbody protectionThe underside of your vehicle is protected for life against chemical and mechanical
influences.
One cannot, however, completely rule out damage to the protective layer when
driving so we recommend that you inspect the protective layer on the underside of
your vehicle and on the chassis at certain intervals - this is best done at the beginning
and end of the winter - and to touch up any damaged areas.
The authorised Škoda Service Partners have suitable spray products available as well
as the necessary equipment and are familiar with the instructions for use. It is therefore
best to have such touch-up work or additional corrosion protection measures carried
out by an authorised Škoda Service Partner.
WARNING
Never use additional underbody protection or corrosion-protection agents for
the exhaust pipes, catalytic converters, di esel particle filter or heat shields.
When the engine reaches its operating temperature, these substances might
ignite - risk of fire!Protection of hollow spacesAll the cavities of your vehicle which are at risk from corrosion are protected for life by
a layer of protective wax applied in the factory.
This wax protection does not require to be inspected or re-treated. Please remove any
small amount of wax which flows out of the cavities at high temperatures with a plastic
scraper and clean the spot using petroleum cleaner.
WARNING
Safety and environmental pr otection regulations should observed when using
petroleum cleaner to remove wax - a risk of fire!
Engine compartmentGood corrosion protection is very importan t, particularly in winter when one often
drives over its salt-strewn roads. One should therefore clean the whole engine
compartment before and after the salt spreading period and treat with preservative in
order to prevent the salt from being destructive.
The authorised Škoda Service Partners have the cleaning agents and preservatives
recommended by the manufacturer and also the required equipment.
WARNING

It is necessary to observ e the guidelines given in the chapter before working
on the engine compartment page 197, “Working in the engine compart-
ment”.

Let the engine cool down before cleaning the engine compartment.Caution

Engine cleaning may be only be un dertaken when the ignition is off.

It is recommended to cover the generator before washing the engine compart-
ment.For the sake of the environment
The dirty water produced by washing the engine has washed away petrol, and residues
of grease and oil and should therefore be cleaned by an oil separator. This is why
engine washing should only be undertaken in a specialist garage or at a fueling station
(when these are fitted with the required equipment).Care of the interior of vehiclePlastic parts, artificial leather and clothsYou can clean plastic parts and artificial leather with a moist cloth. You should only
treat such parts with special solvent-free plastic cleaning and care products it does
prove to be adequate.
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Fuel
192
FuelPetrolGrades of petrolYour vehicle can only be operated with unleaded petrol, which complies with the
standard EN 228. The individual grades of petrol are distinguished by their octane
number (RON). On the inside of the fuel filler flap, you will find the information
regarding the RON required by your engine page 195, fig. 159 - right.
Prescribed fuel - unleaded petrol 95/91 RON
Use unleaded petrol 95 RON. You can also use unleaded petrol 91 RON, but this leads
to a slight loss in performance.
If, in case of necessity, the vehicle must be refuelled with petrol of a lower octane
number than the one prescribed, you must co ntinue driving at medium engine speeds
and low engine load. Driving at high engine speeds or a high engine load can severely
damage the engine! Refuel as soon as possib le with petrol of the prescribed octane
number.
Prescribed fuel - unleaded petrol min. 95 RON
Use unleaded petrol 95 RON.
In case of necessity, you can refuel with petrol 91 RON if petrol 95 RON is not avail-
able. You must continue driving at medium engine speeds and minimum engine load.
Driving at high engine speeds or a high engine load can severely damage the engine!
Refuel as soon as possib le with petrol of the prescribed octane number.
Even in case of necessity, you must not use petrol of a lower octane number than 91,
otherwise the engine can be severely damaged!
You can find further information on refuelling page 195, “Refuelling”.
Unleaded petrol with higher octane number
You can make unlimited use of unleaded pe trol which has a higher octane number
than the one prescribed. On vehicles with prescribed unleaded petrol
95/91 RON, the use of petrol with a
higher octane number than 95 does not result in a noticeable power increase or a
lower fuel consumption.
On vehicles with prescribed unleaded petrol min. 95 RON, the use of petrol with a
higher octane number than 95 does not result in a power increase or a lower fuel
consumption.
Caution

All Škoda vehicles with petrol engines are equipped with a catalytic converter and
must be only driven with unleaded petrol. Fi lling the tank even only once with leaded
petrol will result in the cata lytic converter being destroyed!

Only use unleaded petrol which complies with the standard EN 228.

If you use petrol with a lower octane num ber than the one prescribed, the engine
can be severely damaged!
Biofuel Ethanol E85*Ethanol E85*
Only valid for vehicles with 1.6/75°kW MultiFuel engine.Biofuel Ethanol E85 consists of 85% bioethanol and 15% unleaded petrol complying
with the standard (DIN) EN°228.
Biofuel Ethanol E85 in accordance with th e standard (DIN) EN 228 can be mixed in any
desired ratio with unleaded petrol, see Owner's Manual.
Drive the vehicle for at least 5 minutes without interruption, if biofuel Ethanol E85 has
been refuelled, so that the engine control unit can determine the share of the biofuel
in the fuel. During this period do not drive at top speed of your vehicle or high engine
speeds and not at full throttle. During this process decrease the idling speed.
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Fuel193
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WARNING
Pay attention to any legal requirements if you do carry a spare canister in the
vehicle. We do not recommend carrying any fuel canisters in your vehicle for
safety reasons. The canister can be damaged in the event of an accident and fuel
may leak out.
Caution

Even inadvertently filling the fuel tank with another biofuel such as Ethanol°E85
can result in damage to the fuel system.

If you park the car for a lengthy period, fill with petrol complying with (DIN) EN°228,
because Ethanol E85 can contai n low quantities of impurities, which can lead to corro-
sion.For the sake of the environment
If you use Ethanol E85, the CO
2 emission of your vehicl e is lowered up to 5%.
Note

When operating with Ethanol E85, the fuel consumption increases by approx 33%,
as a lower quantity of energy is contained in the bioethanol than in unleaded petrol.

Biofuel Ethanol E85 contains only a low quantity of additives in contrast to
unleaded petrol. Therefore we recommend to fill up the tank with unleaded petrol
complying with EN 228 every 15 000 km (e.g . before the oil change) and run it empty,
so that the engine remains clean. Make sure not to use the whole content of the tank
 page 195, “Refuelling”.

The interval of 15 000 km applies for the oil change.
Operation in winterIf you use biofuel Ethanol E85 at very low temperatures, it is necessary to preheat the
engine before an engine start.
The power socket for the engine preheating is located in the front bumper next to the
fog light  fig. 158.
If an engine preheating is not possible at outside temperatures lower than -10 °C, the
share of unleaded petrol complying with EN 228 must be as high as possible. Thus the
cold start property of the engine is clearly improved.
If there is biofuel Ethanol E85 in the tank and the engine is not preheated, it can lead at
temperatures below -15°C to very p oor or no starting of the engine.
For the sake of the environment
The use of engine preheating at temperatures below -10°C has a positive effect on the
fuel consumption and thus on the environment.The outside temperature
Duration of engine preheating
lower than -10 °C
we recommend up to 1 hour
lower than -15 °C
at least 1 hour
lower than -25 °C
at least 2 hour
Fig. 158 MultiFuel - power socket
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Fuel
194Note
An extension cable used for connecting to the electrical network is located in the
luggage compartment.DieselDiesel fuelYour 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).
Fuel additives
You must not use fuel additives, so-called “flow improvers” (petrol and similar prod-
ucts) in diesel fuel.
You can find information on refuelling page 195, “Refuelling”.
Caution

Therefore, 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). Filling the tank even only once wi th diesel fuel which does not comply with
the standard, can result in damage to the engine parts, the lubrication system, the fuel
and exhaust system.

If by mistake you have refuelled with a different fuel other than the diesel fuel
which complies to the above mentioned standards (e.g. petrol), do not start the engine
or switch on the ignition! This can result in severe engine damage! Contact a specialist
garage and have the fuel sy stem of the engine cleaned.

Water which has collected in the fuel fi lter can result in engine problems.

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 lead to damage to the engine or the
fuel system.
Operation in winterWinter-grade diesel fuel
A different grade of diesel fuel is available at filling stations in winter than during the
summer. Using “summer-grade diesel fuel” at temperatures below 0°C can result in
operational problems because the diesel beco mes viscous as a result of paraffin sepa-
ration.
It is therefore the case that the standard EN 590 (standard DIN 51628 in Germany,
standard ÖNORM C 1590 in Austria) is the diesel fu el class prescribed for certain
periods of the year which can also be purc hased at the corresponding time during the
year. “Winter-grade diesel fuel” will still operate properly even at a temperature of -
20°C.
It is often the case in countri es with different climatic conditions that diesel fuels avail-
able have a different temperature characteristic. The authorised Škoda Service Part-
ners and filling stations in the country conc erned will be able to provide you with infor-
mation regarding the diesel fuels available.
Prewarming fuel
The vehicle is fitted with a fuel filter prewarming system. This secures operation of a
vehicle using diesel fuel down to an environmental temperature of -25°C.
Caution
It is not permitted to add the various fuel additives on the market, including petrol, to
diesel fuel in order to improve its flow properties.
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