2011 SKODA OCTAVIA engine

Note
After your skin has come in contact with the oil, you must thoroughly wash your
skin. 
Cooling system
Coolant The job of the coolant is to cool the engine.
The cooling system does not require any maintenance under normal operating
conditions. The coolant consists of water with a concentration of coolant additive
of 40 %. This mixture not only provides antifreeze protection down to -25 °C but
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.
You must therefore not reduce the concentration of antifreeze agent in the cool-
ant by adding water, also not during the summer months or in countries with a
warm climate. The concentration of coolant additive in the coolant must be at
least 40 %.
You can increase the amount of antifreeze in the coolant if a higher concentration
of antifreeze is necessary for climatic reasons but only up to 60 % (antifreeze pro-
tection down to approx. -40 °C). The antifreeze protection tails off above that con-
centration.
Vehicles exported to countries with a cold climate (e.g. Sweden, Norway, Finland)
are already factory-filled with a coolant which offers antifreeze protection down
to about -35 °C. In these countries the concentration of coolant additive should be
at least 50 %.
Coolant
The cooling system is factory-filled with coolant (purple in colour), which complies
with the specification TL-VW
774 G.
When refilling, we only recommend you use the same antifreeze described on the
antifreeze expansion tank.
Please contact an authorised ŠKODA Service Partner if you have any questions re-
garding the coolant or if you wish to fill up with a different coolant.
An authorised ŠKODA Service Partner can also supply you with the correct coolant
additives. Coolant capacity Petrol engines Capacities (in liter)
1.2 ltr./77 kW TSI - EU5 7,7
1.4 ltr./59 kW - EU4 7,1
1.4 ltr./90 kW TSI - EU5 7,7
1.6 ltr./75 kW - EU4, EU2 7,4
1.8 ltr./118 kW TSI - EU5, EU2 DDK
(1.8 ltr./112 kW TSI - EU5)
8,6
2.0 ltr./147 kW TSI - EU5 8,6
Diesel engines Capacities (in liter)
1.6 l/77 kW TDI CR - EU5 8,4
1.9 ltr./77 kW TDI PD - EU4, EU3 8,4
1.9 ltr./77 kW TDI PD DPF - EU4 8,4
2.0 ltr./81 kW TDI CR - EU4, EU5 8,4
2.0 ltr./103 kW TDI CR DPF - EU4, EU5 8,4
2.0 l/125 kW TDI CR - EU5 8,4
CAUTION
● Other coolant additives may cause operational problems which, in particular,
involves significantly reducing the anticorrosion effect.
● Any faults or problems resulting from corrosion may cause a loss of coolant
and, as a consequence of this, result in major engine damage. Note
On vehicles which are fitted with an independent auxiliary heating and ventila-
tion, the volume of the coolant is greater by approx. 1 ltr. 184
Inspecting and Replenishing

Inspecting the coolant level
Fig. 152 Engine compartment: Coolant
expansion bottle
The coolant expansion bottle is located in the engine compartment on the right.
– Switch the engine off.
– Open the bonnet ⇒ page 180 .
– Check the level of coolant in the coolant expansion bottle ⇒ fig. 152 . 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 reservoir is too low, this is indicated by the warning light
in the instrument cluster ⇒ page 25, Coolant temperature/ Coolant quantity 
. 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. You
should not merely top up the coolant in the reservoir. It is also important to have
the cooling system inspected without delay by a specialist garage.
Losses can only occur through the pressure relief in the cap of the coolant expan-
sion bottle which is completely free of leaks if the coolant boils as a result of over-
heating and is forced out of the cooling system. WARNING
Read and observe the warning notes ⇒ page 181, Working in the engine com-
partment
before working in the engine compartment. CAUTION
One should contact a specialist garage as soon as possible if the source of over-
heating itself cannot be determined and removed, since there may be grave dam-
age to the engine. 
Replenishing the coolant –
Switch the engine off.
– Allow the engine to cool down.
– Place a cloth over the cap of the coolant expansion reservoir ⇒
 fig. 152 and un-
screw the cap carefully by turning it to the left ⇒  .
– Top up the coolant.
– Screw the cap tight until it is heard to lock.
The coolant which you use for replenishing the system, must comply with one
specific specification ⇒ page 184

. Do not use an alternative additive if the speci-
fied coolant additive is not available in exceptional cases. Just top up the system
with water and as soon as possible arrange adjustment to correct the mixing ratio
of water and coolant additive again by a specialist garage.
Only use fresh coolant for topping up the system.
Do not fill the coolant above the mark a (max.)
⇒ fig. 152 ! Excess coolant heats up
and then is forced out of the cooling system through the pressure relief valve in
the cap.
Wait until the engine has cooled down for a system which has suffered a major
loss of coolant before pouring in coolant. This is necessary to avoid engine dam-
age. WARNING
● The cooling system is pressurized! Do not open the cap of the coolant ex-
pansion bottle if the engine is still hot - risk of scalding!
● 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 the
health. It is important, therefore, to always safely store any coolant additive in
its original container out of the reach of children - risk of poisoning! £ 185
Inspecting and Replenishing Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

WARNING (Continued)
● If any splashes of coolant get into your eyes, rinse out your eyes immedi-
ately 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 for some reason it is not possible under the condi-
tions prevailing to top up with coolant. Switch the engine off and obtain profes-
sional assistance from a specialist garage, otherwise it could lead to severe en-
gine damage. For the sake of the environment
Do not re-use coolant if it is necessary to drain the coolant in the system. It should
be collected and disposed of in compliance with environmental protection regula-
tions. 
Radiator fan The radiator fan may switch on suddenly.
The radiator fan is driven by an electric motor and controlled according to the
coolant temperature.
The radiator fan may continue running for up to 10 minutes after the engine has
been switched off - even if the ignition is also off. It may also switch on suddenly
after a certain time, if
● the coolant temperature has risen because of an accumulation of heat or
● the warm engine compartment is heated up additionally by strong sunlight. WARNING
You must therefore be aware when working in the engine compartment that
the fan may switch on suddenly - risk of injury! Brake fluid
Inspecting the brake fluid level Fig. 153 Engine compartment: Brake flu-
id reservoir
The brake fluid reservoir is located on the left of the engine compartment. The
brake fluid reservoir on right-hand steering models is positioned on the other side
of the engine compartment.
– Switch the engine off.
– Open the bonnet ⇒ page 180 .
– Inspect the brake fluid level in the reservoir ⇒
 fig. 153 . The level must be be-
tween the “MIN” and “MAX” markings.
A slight drop in the fluid level results when driving due to normal wear-and-tear
and automatic adjustment of the brake pads, and is 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 28, Brake system . In this case stop immediately
and do not drive any further! Obtain professional assistance. WARNING
● Read and observe the warning notes ⇒
 page 181, Working in the engine
compartment before working in the engine compartment.
● If the fluid level has dropped below the MIN marking, do not drive any fur-
ther - risk of accident! Contact a Škoda dealer to obtain professional assis-
tance. 186
Inspecting and Replenishing

WARNING (Continued)
● Never charge a frozen or thawed battery - risk of explosion and caustic
burns! Replace a frozen battery.
● Never jump-start the batteries which have a too low electrolyte level - risk
of explosion and caustic burns!
● Never use a battery which is damaged - risk of explosion! Immediately re-
place a damaged battery. CAUTION
● You must only disconnect the battery if the ignition is switched off, otherwise
the electrical system (electronic components) of the vehicle may be damaged.
When disconnecting the battery from the electrical system of the vehicle, first dis-
connect the negative terminal (-) of the battery. Then disconnect the positive ter-
minal (+).
● When reconnecting the battery, first connect the positive terminal (+) and only
then the negative terminal (-) of the battery. You must on no account connect the
cables wrongly - risk of a cable fire.
● Ensure that battery acid does not come into contact with the vehicle body oth-
erwise damage could occur to the paintwork.
● Do not place the battery in direct daylight in order to protect the battery hous-
ing from the effects of ultra-violet light.
● If the vehicle has not been driven for more than 3 to 4 weeks, the battery will
discharge This is because certain electrical components consume electricity (e. g.
control units) also in idle state. You can prevent the discharging of the battery by
disconnecting the negative terminal or charging the battery constantly with a very
low charging current. For the sake of the environment
A removed battery is a special type of waste which is harmful to the environment
- contact your specialist garage regarding disposing of the battery. Note
● Please also refer to the guidelines ⇒ page 190
, also after connecting the bat-
tery.
● You should replace batteries older than 5 years. Battery cover
Fig. 154 Engine compartment: Polyester cover of the vehicle battery/plastic cover of the ve-
hicle battery
The battery is located in the engine compartment in a polyester cover
⇒ fig. 154 -
left or in a polyester cover ⇒

 fig. 154 - right.
– Open the battery cover in direction of arrow 1
⇒
 fig. 154 or press the interlock
2 on the side of the battery cover, fold the cover up and remove the battery.
– The installation of the battery cover takes place in the reverse order.
The edge of the polyester battery cover ⇒

 fig. 154 - left is inserted between the
battery and the side wall of the battery cover when working on the battery. 
Battery control Fig. 155 The battery: Electrolyte level
indicator
The battery is practically maintenance-free under normal operating conditions. £188
Inspecting and Replenishing

We recommend you have the electrolyte level checked by a specialist garage from
time to time, especially in the following cases.
● High outside temperatures.
● Long daily drives
● After each charge ⇒  page 189.
On vehicles with a vehicle battery fitted with a colour indicator, the so-called mag-
ic eye ⇒ fig. 155 , 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 an authorised
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. 
Operation in winter The battery has to provide greater amounts of electricity during the winter. It also
has only part of the initial power output at low temperatures that it has at normal
temperatures.
A discharged battery may already freeze at temperatures just below 0 °C.
We therefore recommend that you have the battery checked by a specialist ga-
rage before the start of winter and recharged if necessary. WARNING
Never charge a frozen or thawed battery - risk of explosion and caustic burns.
Replace a frozen battery. Charging the battery A properly charged battery is essential for reliably starting the en-
gine.
– Read the warning notes ⇒
  in General information on page 187 and ⇒
  .
– Switch the ignition and all electrical components off.
– Only for “quick-charging”: Disconnect both battery cables (first of all “nega-
tive
”, then “positive”).
– Carefully attach the terminal clamps of the charger to the battery terminals
(red = “positive

”, black = “negative”).
– You can now plug the mains cable of the charger into the power socket and
switch on the charger.
– When charging is completed: switch the charger off and unplug the mains ca-
ble from the power socket.
– Only then should you disconnect the terminal clamps of the charger.
– Reconnect the cables to the battery (first of all “positive”, then “negative”).
It is not normally necessary to disconnect the cables of the battery if you recharge
the battery using low amperages (as for example from a mini-charger). Please al-
so refer to the instructions from the charger manufacturer.
A charging current of 0.1 of the total battery capacity (or lower) is that which
should be used until full charging is achieved.
It is, however, necessary to disconnect both cables before charging the battery
with high amperages, so-called

“quick-charging ”.
“Quick-charging” a battery is dangerous ⇒  in General information on page 187.
It requires a special charger and specialist knowledge. We recommend having the
quick charging of vehicle batteries undertaken by a specialist garage.
A discharged battery may already freeze at temperatures just below 0

°C ⇒  . We
recommend that you no longer use a battery which has thawed out because the
casing of the battery may be cracked through the formation of ice and this would
allow battery electrolyte to flow out.
The vent plugs of the battery should not be opened for charging. £ 189
Inspecting and Replenishing Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

WARNING
● Never charge a frozen or thawed battery - risk of explosion and caustic
burns. Replace a frozen battery.
● Never charge a battery which has a too low electrolyte level - risk of explo-
sion and caustic burns. CAUTION
On vehicles with the “START/STOP” system, the pole terminal of the charger must
not be connected directly to the negative terminal of the vehicle battery, but only
to the engine earth ⇒ fig. 172. 
Disconnecting and reconnecting the battery On disconnecting and reconnecting the battery the following functions are initially
deactivated or are no longer able to operate fault-free.
Operation Operating measure
Electrical power window (operational faults) ⇒ page 41
Enter the car stereo/radio navigation system
code number see operating instructions for the
car stereo/radio navigation sys-
tem
Setting the clock ⇒ page 13
Data in the multi-functional indicator are de-
leted. ⇒ page 14
We recommend having the vehicle checked by an authorised ŠKODA Service Part-
ner to ensure full functionality of all electrical systems.

Replacing the battery When replacing a battery, the new new battery must have the same capacity,
voltage (12
V), amperage and be the same size. Suitable types of vehicle battery
are available from an authorised ŠKODA Service Partner.
We recommend you have a battery change carried out by an authorised ŠKODA
Service Partner, who will properly install the new battery and dispose of the origi-
nal one. CAUTION
Vehicles with a “START-STOP” system are fitted with a special battery type which
allows the battery control unit to check the energy level for recurring engine start.
This battery must only be replaced by a battery of the same type. For the sake of the environment
Batteries contain poisonous substances such as sulphuric acid and lead. For this
reason, it must be disposed of properly. Under no circumstances must it be dis-
posed of in the communal rubbish. 
Automatic consumer shut-off Under heavy load on the vehicle battery, the vehicle electrical system manage-
ment automatically takes various measures to avoid draining the vehicle battery.
●
The idling speed is raised to allow the generator to deliver more electricity to
the electrical system.
● If necessary, some electrical consumers are limited in their performance or are
temporarily switched off completely. Note
Despite such intervention by the vehicle electric system management, the vehicle
battery may be drained. For example, when the ignition is switched on a long time
with the engine turned off or the side or parking lights are turned on during lon-
ger parking. 
Windshield washer system Fig. 156 Engine compartment: Wind-
shield washer fluid reservoir
£190
Inspecting and Replenishing

The windshield washer reservoir contains the cleaning fluid for the windscreen or
rear window and for the headlamp cleaning system. The reservoir is located at the
front right of the engine compartment ⇒
 fig. 156 .
The filling level of the container is about 3 litres and about 5.5 litres on vehicles
which have a headlight washing system.
Clear water is not sufficient to intensively clean the windscreen and headlights.
We therefore recommend using clean washing water together with the screen
cleaner from ŠKODA Original Accessories (in winter additionally with antifreeze)
which is capable of removing stubborn dirt. Follow the instructions for use on the
packaging when using screen cleaning products.
You should always add antifreeze to the cleaning water in winter even if your ve-
hicle is fitted with heated windscreen washer nozzles.
It is also possible in exceptional cases to use methylated spirits when no screen
cleaner with antifreeze is available. The concentration of methylated spirits must
not be more than 15 %. Please note, however, that the antifreeze protection at
this concentration is only adequate down to -5 °C. WARNING
Read and observe the warning notes ⇒ page 181, Working in the engine com-
partment
before working in the engine compartment. CAUTION
● On no account should you add radiator antifreeze or other additives to the
windscreen washer fluid.
● If the vehicle is fitted with a headlight cleaning system, you should only add
cleaning products which do not attack the polycarbonate coating of the head-
lights to the windscreen washer fluid. Please contact an authorised

ŠKODA Serv-
ice Partner who will help you select a suitable cleaning agent.  191
Inspecting and Replenishing Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

Before removing the spare wheel, you must take out the box with the vehicle tool
kit box ⇒ fig. 162 .
One should check the inflation pressure in the spare wheel (at best when general-
ly checking the tyre air pressures - see sign on the fuel filler flap ⇒ page 192) to
ensure that the spare wheel is always ready to use.
Temporary spare wheel
A warning label displayed on the rim of the temporary spare wheel indicates that
your vehicle is equipped with a temporary spare wheel.
Please observe the following notes when driving with a temporary spare wheel:
● The warning label must not be covered after installing the wheel.
● Do not drive faster than 80 km/h with this spare wheel and pay particular at-
tention while driving. Avoid accelerating at full throttle, sharp braking and fast
cornering.
● The inflation pressure for this spare wheel is identical to the inflation pressure
of the standard tyres. The temporary spare wheel R 18 must have an inflation
pressure of 420
kPa (4.2 bar)!
● Use this spare wheel only to reach the nearest specialist garage as it is not in-
tended for continuous use.
● No other summer or winter tyres must be mounted on the rim of the spare
wheel R 18. 
Changing a wheel Preliminary work The following steps should be carried out before actually changing the wheel.
– If it is necessary to change a wheel, park the vehicle as far away as possible
from the traffic flow. The place you choose should be level.
– Have all the occupants get out. While changing a tyre, the occupants of the
vehicle should not stand on the road (instead they should remain behind a
crash barrier).
– Apply the handbrake firmly.
– Engage 1st gear or if your vehicle is fitted with an automatic gearbox, position
the selector lever into position P .
– If a trailer is coupled, uncouple it. –
Take the vehicle tool kit ⇒ page 199
and the spare wheel ⇒ page 199 out of
the luggage compartment. WARNING
● If you find yourself in flowing traffic switch on the hazard warning lights
system and place the warning triangle on the side of the road at the prescri-
bed distance from your vehicle. Comply with the national legal regulations. In
this way you are protecting not only yourself but also other road users.
● Never start the engine with the vehicle sitting on the raised jack - danger
of suffering injury. CAUTION
If you have to change a wheel on a slope first block the opposite wheel with a
stone or similar object in order to secure the vehicle from unexpectedly rolling
away. Note
Comply with the national legal regulations. 
Changing a wheel Always change a wheel on a level surface as far as possible.
–
Take off the full wheel trim ⇒ page 201
or the caps ⇒ page 201.
– In the case of light alloy wheels remove the wheel trim cap ⇒
 page 202.
– First of all slacken the safety wheel bolt and afterwards the other wheel bolts
⇒  page 202.
– Jack up the vehicle until the wheel to be changed is clear of the ground
⇒ page 203.
– Unscrew the wheel bolts and place them on a clean surface (cloth, paper, etc.).
– Take off the wheel.
– Fit on the spare wheel and tighten the wheel bolts slightly.
– Lower the car.
– Tighten the wheel bolts firmly, alternately and diagonally using the wheel
wrench (crosswise) and lastly the wheel safety bolt ⇒

 page 202.
– Mount the full wheel trim/wheel trim cap or the caps. £200
Breakdown assistance