2013 SKODA OCTAVIA Owner's Manual

CapacityFirst read and observe the introductory information and safety warn-
ings
on page 221.
Coolant capacity (in litres) 1)
Petrol enginesFilling level1.2 l/63, 77 kW TSI8.91.4 litres/103 kW TSI10.21.8 ltr./132 kW TSI7.82.0 ltr./162 kW TSI8.6Diesel enginesFilling level1.6 l/66, 77, 81 kW TDI CR8.42.0 l/105, 110, 135 kW TDI CR - MG / DSG11.6 / 11.9

Checking the coolant level
Fig. 185
Engine compartment: Coolant
expansion reservoir
First read and observe the introductory information and safety warn-
ings on page 221.
The coolant expansion bottle is located in the engine compartment.
Inspecting the coolant level
›
Switch off the engine.
›
Open the bonnet.
› Check the coolant level in the coolant expansion tank
» Fig. 185.
Coolant level above mark A
No coolant must be refilled.
The level may also rise slightly above the
A
marking when the engine is warm.
Coolant level between markings
A
and
B
Coolant can be refilled.
When the engine is cold, the coolant level must lie between the
A
and
B
mark-
ings.
Coolant level below mark
B
Coolant must be refilled.
When the engine is cold, refill the coolant between the markings
A
and
B
.
If the coolant level in the coolant expansion tank is too low, this is indicated by
the warning icon 
lighting up in the instrument cluster » page 22, 
Coolant .
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 specialist
garage.

Replenishing
First read and observe the introductory information and safety warn-
ings
on page 221.
Only refill with new coolant.
›
Switch off the engine.
›
Allow the engine to cool.
›
Place a cloth over the cap of the coolant expansion reservoir and unscrew the cap carefully .
›
Replenish the coolant.
›
Turn the cap until it clicks into place. 

1)
On vehicles that are fitted with an auxiliary heater (auxiliary heating and ventilation), the coolant ca-
pacity is approx. 1 l larger.
222General Maintenance

Do not use an alternative additive if the specified coolant is not available in anemergency. In this case, use just water and have the correct mixing ratio of waterand coolant additive restored by a specialist garage as soon as possible.
Brake fluid
 Introduction
This chapter contains information on the following subjects:
Checking the brake fluid level
223
Changing
223WARNING■ The engine compartment of your car is a hazardous area. The following
warning instructions must be followed at all times when working in the en-
gine compartment » page 215.■
If the fluid level has dropped below the MIN marking » Fig. 186 on page 223,
 do not continue your journey - risk of accident! Seek help from a specialist
garage.
■
Do not use used brake fluid - the function of the brake system may be im-
paired – risk of accident!
CAUTION
Brake fluid damages the paintwork of the vehicle.
Note
The brake fluid is changed as part of a prescribed inspection services.
Checking the brake fluid levelFig. 186
Engine compartment: Brake fluid
reservoir
First read and observe the introductory information and safety warn-
ings on page 223.
The brake fluid reservoir is located in the engine compartment.
›
Switch off the engine.
›
Open the bonnet.
›
Check the level of brake fluid in the reservoir » Fig. 186.
The level must be between 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.
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 indicator light  » page 16 , 
Brake system lighting up in the instrument cluster.

Changing
First read and observe the introductory information and safety warn-ings
on page 223.
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 sys-
tem.
The water content lowers the boiling point of the brake fluid. 
223Inspecting and replenishing

The brake fluid must comply with the following standards or specifications:› VW 50114;
› FMVSS 116 DOT4.
Vehicle battery

Introduction
This chapter contains information on the following subjects:
Opening the cover
225
Checking the battery electrolyte level
226
Charging
226
Replacing
227
Disconnecting and reconnecting
227
Automatic load deactivation
227
Warning symbols on the vehicle battery
SymbolMeaningAlways wear eye protection!Battery acid is severely caustic. Always wear gloves and eye protec- tion!Keep fire, sparks, open flames and lit cigarettes well clear of the ve-
hicle battery!When charging the vehicle battery, a highly explosive gas mixture is produced!Keep children away from the vehicle battery!WARNINGThere is a risk of injuries, poisoning, chemical burns, explosions or fire when
carrying out any work on the battery and on the electrical system. The general
applicable safety rules and the following warnings must be observed without
exception.■
Keep children away from the vehicle battery.
■
Do not tilt the battery otherwise battery electrolyte may flow out of the bat-
tery vent openings. Protect your eyes by safety glasses or a face shield – risk
of blindness!
■
Always wear protective gloves, eye and skin protection when handling the
vehicle battery.
■
The battery acid is strongly corrosive and must, therefore, be handled with
the greatest of care.
■
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, skin cracks).
■
If any battery electrolyte comes into contact with your eyes, rinse the rele-
vant eye immediately with clear water for several minutes - consult a doctor
immediately!
■
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 you swallow
battery acid, seek immediate medical assistance!
WARNING■ It is prohibited to work with a naked flame and light.■Smoking or to carrying out any activities which produce sparks are prohibi-
ted.■
Never use a damaged vehicle battery – risk of explosion!
■
Never charge a frozen or thawed vehicle battery – risk of explosion and
caustic burns!
■
Replace a frozen vehicle battery.
■
Never jump-start vehicle batteries with an electrolyte level that is too low –
risk of explosion and caustic burns. 
224General Maintenance

WARNING■When you charge a battery, hydrogen is released, and a highly explosive gas
mixture is also produced. An explosion can be caused through sparkling over during unclamping or loosening of the cable plug while the ignition is on.■
Creating a bridge between the poles on the battery (e.g. with a metal object
or cable) creates a short circuit - risk of melting the lead bars, and risk of ex-
plosion, battery fire and acid splashes.
■
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 engine,
the ignition and all electrical components and disconnect the negative termi-
nal (-) on the battery.
CAUTION
Improper handling of the battery can lead to damage occurring. We recommend
having all work on the vehicle battery carried out by a specialist garage.
CAUTION
■ The vehicle battery must only be disconnected if the ignition is switched off,
otherwise the vehicle's electrical system (electronic components) can be dam-
aged. When disconnecting the battery from the electrical system, first of all dis-
connect the negative terminal (-) of the battery, followed by the positive terminal
(+).■
When connecting the battery to the electrical system, first of all connect the
positive terminal (+) of the battery, followed by the negative terminal (-). Under no
circumstances must the battery cables be connected incorrectly – risk of a cable fire.
■
Ensure that battery acid does not come into contact with the bodywork – risk of
damage to the paintwork.
■
Do not place the battery in direct daylight in order to protect the vehicle battery
housing 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. Prevent the battery from discharging by discon-
necting the battery's negative terminal (-) or continuously charging the battery
with a very low charging current.
■
If the vehicle is frequently used for making short trips, the vehicle battery will
not have time to charge up sufficiently and may discharge.
For the sake of the environmentA vehicle battery that has been removed is a special type of hazardous waste.
These must be disposed of in accordance with national legal regulations.
Note
You should replace batteries older than 5 years.
Opening the cover
Fig. 187
Engine compartment: Polyester
cover of vehicle battery
First read and observe the introductory information and safety warn- ings on page 224.
The battery is located in the engine compartment - in some models, underneath apolyester cover » Fig. 187.
›
Fold out the cover on the battery in the direction of the arrow.
The battery cover is installed in reverse order.
The edge of the polyester battery cover is inserted between the battery and the
side wall of the battery cover when working on the battery.

225Inspecting and replenishing

Checking the battery electrolyte levelFig. 188
Vehicle battery: Electrolyte level
indicator
First read and observe the introductory information and safety warn-
ings on page 224.
On vehicles with a vehicle battery fitted with a colour indicator, the so-called
magic eye » Fig. 188, 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.
Vehicles with a START-STOP system are fitted with a battery control unit for checking the energy level for the recurring engine start.
We recommend that you have the acid level checked regularly by a specialist ga-
rage, especially in the following cases.
› High external temperatures.
› Longer day trips.
› After each charge.
Winter time
The vehicle battery only has a proportion of the starting power in lower tempera-
tures. A discharged vehicle battery may already freeze at temperatures just be-
low 0 °C .
We therefore recommend that you have the battery checked and, if necessary, re-
charged by a specialist garage before the start of the winter.
CAUTIONFor technical reasons, on vehicles with the description “AGM”, the electrolyte lev- el cannot be checked.
Note
The battery acid level is also checked regularly by a specialist garage as part of
the inspection service.
Charging
First read and observe the introductory information and safety warn-ings
on page 224.
A properly charged vehicle battery is essential for reliably starting the engine.
›
Switch off the ignition and all of the electrical components.
›
Only when performing a “quick-charge”, disconnect both battery cables (first of
all “negative”, then “positive”).
›
Attach the terminal clamps of the charger to the battery terminals (red = “posi- tive”, black = “negative”).
›
Plug the mains cable of the charger into the power socket and switch on the
device.
›
After charging has been successful: Switch off the charger and remove themains cable from the power socket.
›
Only then disconnect the charger's terminal clamps.
›
Reconnect the cables to the battery (first of all “positive”, then “negative”).
It is not necessary to disconnect the cables of the battery if you recharge the ve- hicle battery using low amperages (for example from a mini-charger). Refer to the
instructions of the charger manufacturer .
A charging current of 0.1 multiple of the total vehicle battery capacity (or lower) must be used until full charging is achieved.
It is necessary to disconnect both cables before charging the battery with high
amperages, so-called “ quick-charging”.
The vent plugs of the vehicle battery should not be opened for charging. 
226General Maintenance

WARNING“Quick-charging” the vehicle battery is dangerous and requires a special
charger and specialist knowledge.
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 » page 244, Jump-starting in vehicles with the START-STOP
system .
Note
We therefore recommend that vehicle batteries be rapid charged by a specialist
garage.
Replacing
First read and observe the introductory information and safety warn-
ings
on page 224.
When replacing a battery, the new vehicle battery must have the same capacity,
voltage, amperage and be the same size. Suitable vehicle battery types can be
purchased from a specialist garage.
We recommend having the battery replaced by a specialist garage, where the
new vehicle battery will be installed properly and the original battery will be dis-
posed of in accordance with national regulations.

Disconnecting and reconnecting
First read and observe the introductory information and safety warn-
ings
on page 224.
On disconnecting and reconnecting the vehicle battery, the following functions
are initially deactivated or are no longer able to operate fault-free:
OperationOperating measureElectrical power window (operational faults)» page 49Enter the radio/navigation system code num-
ber» Operating instructions for Info-
tainment Radio or » Operating
instructions for Infotainment
NavigationSetting the clock» page 14Data in the multifunction display are deleted» page 29
Note
We recommend having the vehicle checked by a specialist garage in order to en-
sure full functionality of all electrical systems.
Automatic load deactivation
First read and observe the introductory information and safety warn-ings
on page 224.
The vehicle voltage control unit automatically prevents the battery from discharg-
ing when the bettery is subjected to heavy loads. This manifests itself by the fol-
lowing.
› The idling speed is raised to allow the generator to deliver more electricity to
the electrical system.
› Where appropriate large convenience consumers, e.g. seat heaters, rear win-
dow heaters, have their power limited or in case of emergency shut off com-
pletely.
CAUTION
■ Despite such intervention by the vehicle electric system management, the vehi-
cle 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 longer parking.■
Consumers which are supplied via a 12 V socket can cause the vehicle battery to
discharge when the ignition is switched off.
Note
Driving comfort is not disrupted by any shutting off of consumers. Often the driv-
er is not aware of it having taken place.
227Inspecting and replenishing

Wheels
Tyres and wheel rims
Introduction
This chapter contains information on the following subjects:
Service life of tyres
229
New tyres
230
Unidirectional tyres
231
Tyre control display
231
Spare wheel
232
Full wheel trim
233
Wheel bolts
233
Wheel bolts
233WARNING■ The national legal requirements must be observed for the use of tyres.■Observe the national legal regulations relating to the use of snow chains
and the maximum vehicle speed with snow chains.WARNINGThe following instructions for the use of tyres must be observed.■During the first 500 km, new tyres do not offer optimum grip and appropri-
ate care should therefore be taken when driving – risk of accident!■
On all four wheels, use only radial tyres of the same type, size (rolling cir-
cumference) and the same tread pattern.
■
For safety reasons, do no replace tyres individually.
■
Never exceed the maximum permissible load bearing capacity for fitted
tyres – risk of accident!
■
Never exceed the maximum permissible speed for fitted tyres – risk of acci-
dent!
■
An incorrect wheel alignment at the front or rear impairs handling – risk of
accident!
WARNING (Continued)■ Unusual vibrations or pulling of the vehicle to one side could be a sign of
tyre damage. If there is any doubt that a wheel is damaged, immediately re-
duce your speed and stop! If no external damage is evident, drive slowly and
carefully to the nearest specialist garage to have the vehicle checked.■
Only use those tyres or wheel rims which have been approved by ŠKODA for
your model of vehicle. Failure to observe this instruction will adversely affect
the road safety of your vehicle – risk of accident!
WARNINGObserve the following information regarding damage and wear of tyres.■Never use tyres if you do not know anything about the condition and age.■
Never drive with damaged tyres – risk of accident!
■
Immediately replace damaged wheel rims or tyres.
■
You must have your tyres replaced with new ones at the latest when the
wear indicators have been worn down.
■
Worn tyres do not provide the necessary adhesion to the road surface par-
ticularly at high speeds on wet roads. One could experience “aquaplaning” (uncontrolled movements of the vehicle – “swimming” on a wet road surface).
WARNINGObserve the following information regarding the tyre inflation pressure.■The tyre control display does not absolve the driver of the responsibility to
ensure the correct tyre inflation pressure. Check the tyre inflation pressure at
regular intervals.■
Too low or too high inflation pressure impairs handling – risk of an accident!
■
If the inflation pressure is too low, the tyre must perform a greater rolling
resistance. At higher speeds the tyre will warm up as a result of this. This can
result in tread separation and a tyre blowout.
WARNINGObserve the following information regarding the wheel bolts.■The wheel bolts must be clean and must turn easily. Never treat them with
grease or oil. 228General Maintenance

WARNING (Continued)■The prescribed tightening torque of the wheel bolts for steel and light alloy
wheels is 120 Nm.■
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.
■
In case of incorrect treatment of the wheel bolts, the wheel can loosen
when the car is moving – risk of accident!
WARNINGObserve the following information regarding the spare wheel.■Only use the spare wheel while absolutely necessary.■
Never drive with more than one spare wheel mounted.
■
The snow chains cannot be used on the spare wheel.
CAUTION
■ If a spare wheel is used that is not identical to the fitted tyres, the following
must be observed » page 232, Spare wheel .■
Protect the tyres from contact with oil, grease and fuel.
■
Replace lost dust caps.
■
If, in the event of a puncture, it is necessary to fit a spare wheel with a tyre
without a dedicated running direction or the opposite running direction, drive
carefully as the optimum characteristics of the tyre are no longer applicable in
this situation.
For the sake of the environment
Tyres which are insufficiently inflated increase your fuel consumption.
Note
■ We recommend that any work on the wheels or tyres be carried out by a spe-
cialist garage.■
We recommend that you use wheel rims, tyres, full wheel trims and snow chains
from ŠKODA Original Accessories.

Service life of tyresFig. 189
Principle sketch: Tyre tread with wear indicators/Open fuel filler
flap with a table detailing the tyre size and tyre inflation pressure
Fig. 190
Changing wheels around
First read and observe the introductory information and safety warn-
ings on page 228.
The life of tyres depends on the inflation pressure, driving style, and other cir-
cumstances. Following the advice below can extend the service life of your tyres.
Tyre pressure
Check the tyre pressure, including that of the spare wheel, at least once a month and also before setting off on a long journey.
The tyre pressures for tyres are shown on the inside of the fuel filler
flap » Fig. 189 -
 .
The tyre pressure should be at the highest pressure specified for your vehicle at all times. 
229Wheels