2011 SKODA OCTAVIA maintenance

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

Replacing brake fluid
Brake fluid absorbs moisture. This causes the fluid to absorb moisture from the
surrounding air over a period of time. 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.
Only new genuine brake fluid from
ŠKODA may be used.
The brake fluid must comply with one of the following standards or specifications:
● VW 50114
● FMVSS 116 DOT4
● DIN ISO 4925 CLASS 4
We recommend that you have the brake fluid replaced by an authorised ŠKODA
Service Partner as part of an Inspection Service. 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. For the sake of the environment
Due to issues with disposal, the special tools and knowledge required, we recom-
mend you have the brake fluid replaced by an authorised ŠKODA Service Partner.
Battery General information Improper handling of the vehicle battery can cause damage. We therefore recom-
mend you have work on the vehicle battery carried out by an authorised
ŠKODA
service partner. There is a risk of injuries, scalding, accidents and burns when carrying out any
work on the battery and on the electrical system. For this reason, it is essential to
comply with the warning instructions ⇒  stated below and with the general ap-
plicable rules of safety. WARNING
● The battery acid is strongly corrosive and must, therefore, be handled with
the greatest of care. Always wear protective gloves, eye and skin protection
when handling batteries. Corrosive fumes in the air irritate the air passages
and lead to conjunctivitis and inflammation of the air passages in the lungs.
Battery acid corrodes dental enamel and creates deep wounds after contact
with the skin which take a long time to heal. Repeated contact with diluted
acids causes skin diseases (inflammations, ulcers, slin cracks). Acids coming in-
to contact with water are diluted accompanied by significant development of
heat.
● Do not tilt the battery otherwise battery electrolyte may flow out of the
battery vent openings. Protect the eyes with safety glasses or a shield! There
is the danger of suffering blindness! If any battery electrolyte gets into your
eye, rinse out your eye immediately with clear water for several minutes. Con-
tact a doctor without delay.
● Splashes of acid on your skin or clothes should be neutralised as soon as
possible using soap suds and then rinsed with plenty of water. If acid was
swallowed, seek immediate medical attention.
● Keep batteries out of the reach of children.
● Hydrogen is released when you charge a battery and a highly explosive gas
mixture is produced. An explosion can be caused through sparkling over dur-
ing unclamping or loosening of the cable plug while the ignition is on.
● Bridging of the poles will create a short circuit (e.g. through metal objects,
cables). Possible consequences of a short circuit: Melting of lead struts, explo-
sion and burning of the battery, jets of acid spurting out.
● It is prohibited to work with a naked flame and light, to smoke or to carry
out any activities which produce sparks. Avoid creating sparks when working
with cables and electrical devices. Strong sparking represents a risk of injury.
● Before carrying out any work on the electrical system, switch off the en-
gine, the ignition as well as all electrical components and disconnect the neg-
ative cable (-) on the battery. If you wish to replace a bulb it is sufficient to
switch off the appropriate light. £ 187
Inspecting and Replenishing Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

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

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

The tyre inflation pressure for tyres of the tyre size 205/50 R17, which are inten-
ded to be used with snow chains, is identical to the tyre inflation pressure for
tyres of the tyre size 225/45
R17, see ⇒ fig. 157.
The tyre pressure should be at the highest pressure specified for your vehicle at
all times.
The tyre inflation pressure of the emergency spare wheel R 18 is 420 kPa
(4.2 bar).
Always check the inflation pressure of tyres when cold. Do not reduce the higher
pressure of warm tyres. Adapt the inflation pressure of the tyres accordingly if
your vehicle is carrying a significantly higher payload.
Driving style
Fast cornering, sharp acceleration and braking (squealing tyres) increase wear-
and-tear on your tyres.
Balancing wheels
The wheels of a new vehicle are balanced. There are a wide range of influences
when driving which may result in an imbalance and which makes themselves felt
through vibration in the steering.
You should have the wheels rebalanced since any imbalance increases wear-and-
tear on the steering, the suspension and tyres. A wheel must also be rebalanced
when a new tyre is fitted and each time a tyre is repaired.
Wheel alignment errors
Incorrect wheel alignment at the front and rear will not only increase wear-and-
tear on the tyres but will also has an adverse effect on vehicle safety. Contact
your specialist garage if you notice any unusual tyre wear. WARNING
● If the inflation pressure is too low, the tyre must perform a higher rolling
resistance. At higher speeds the tyre will warm up as a result of this. This can
result in tread separation and even a tyre blowout.
● Immediately replace the damaged rims or tyres.
● Tyres which are 6 years old or more should only be fitted in exceptional ca-
ses and when adopting an appropriately cautious style of driving. For the sake of the environment
Tyres which are insufficiently inflated increase your fuel consumption. Wear indicators
Fig. 158 Tyre tread with wear indicators
The base of the tread of the original tyres has wear indicators 1.6 mm high, instal-
led at right angles to the direction of travel. These wear indicators are located at 6
- 8 points depending on the make and are evenly spaced around the circumfer-
ence of the tyre ⇒ fig. 158 . Markings on the walls of the tyres through the letters
“TWI”, triangular symbols or other symbols identify the position of the wear indi-
cators.
A remaining tread of just 1.6 mm, measured in the grooves of the tread next to the
wear indicators, means that your tyres have reached their legally permissible mini-
mum tread depth. WARNING
● You must have your tyres replaced with new ones at the latest when the
wear indicators have been worn down. The legally permissible minimum tread
depth should be observed.
● Worn tyres do not provide the necessary adhesion to the road surface at
high speeds on wet roads. One could experience “
aquaplaning” (uncontrolled
movements of the vehicle - “swimming” on a wet road surface). 193
Wheels and Tyres Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data

WARNING
● Only use those tyres or wheel rims which have been approved for your
model of ŠKODA vehicle. Failure to observe this instruction will adversely af-
fect the road safety of your vehicle - risk of accident! Approval and licensing of
your vehicle on public roads may also become void as a result.
● You must on no account drive at a higher speed than is permissible for
your tyres - risk of an accident resulting from tyre damage and loss of control
over your vehicle.
● Tyres which are 6 years old or more should only be fitted in exceptional ca-
ses and when adopting an appropriately cautious style of driving.
● Never fit tyres which have already been used without having adequate
knowledge of their previous history. Tyres age even if they have not been
used at all or only very little. A spare tyre must only be used in exceptional ca-
ses and only then when adopting an appropriately cautious style of driving.
● Do not, where possible, replace individual tyres but at least replace them
on both wheels of a given axle at the same time. Always fit the tyres with the
deeper tread depth to the front wheels. For the sake of the environment
Old tyres must be disposed of in conformity with the appropriate regulations. Note
It is not normally possible to fit wheels from other models of cars for technical
reasons. This may also apply in certain circumstances to the wheels of the same
type of vehicle. 
Wheel bolts Wheels and
wheel bolts are matched to each other in terms of design. Each time
you fit other wheels - e.g. light alloy wheels or wheels with winter tyres - you
must therefore also use the matching wheel bolts of the correct length and shape
of spherical cap. This is essential to ensure that the wheels are tightly fitted and
that the brake system operates properly.
If you retrofit wheel trims (or have this done), please also ensure that an ade-
quate flow of air remains assured for cooling the brake system.
Authorised

ŠKODA Service Partners are instructed in the technical possibilities
which exist regarding converting or retrofitting tyres, wheels and wheel trims. WARNING
● In case of incorrect treatment of the wheel bolts, the wheel can loosen
when the car is moving - risk of accident!
● The wheel bolts must be clean and must turn easily. However, they must
never be treated with grease or oil.
● If the wheel bolts are tightened to a too low tightening torque, the rim can
come loose when the car is moving - risk of accident! A tightening torque
which is too high can damage the bolts and threads and this can result in per-
manent deformation of the contact surfaces on the rim. CAUTION
The prescribed tightening torque of the wheel bolts for steel and light alloy
wheels is 120 Nm. 
Winter tyres The handling of your vehicle will be significantly improved when driving on wintry
roads if you fit winter tyres. Summer tyres do not offer the same grip on ice, snow
and at temperatures below 7 °C because of their construction (width, rubber
blend, tread pattern). This particularly applies to vehicles which are equipped with
low-profile tyres
or high-speed tyres (code index H or V on wall of tyre).
Winter tyres must be mounted on all four wheels to obtain the best handling
characteristics.
You must only fit those types of winter tyre which are approved for your vehicle.
The permissible sizes of winter tyres are stated in your vehicle documents. Ap-
provals may differ because of national legislation.
Please remember that the tyres should be inflated to 20

kPa (0.2 bar) more than is
the case for summer tyres ⇒ page 192.
Winter tyres no longer offer the same winter performance once the tyre tread has
worn down to a depth of about 4 mm.
Ageing also causes winter tyres to lose most of their winter performance proper-
ties - even in cases where the remaining tread depth is still clearly more than 4
mm.
Speed restrictions apply to winter tyres as well as to summer tyres ⇒ page 194,
⇒  .
£ 195
Wheels and Tyres Using the system Safety Driving Tips General Maintenance Breakdown assistance Technical data