2012 SKODA OCTAVIA warning

We recommend maintaining the oil level within the range A, but not above , if
the engine has been operating at high loads, for example, during a lengthy motor-
way trip during the summer months, towing a trailer or negotiating a high moun- tain pass.
The warning light in the instrument cluster will indicate whether the oil level is too low » page 15 . Check the oil level using the dipstick as soon as possible. Add
oil accordingly.WARNINGDo not continue your journey if for some reason it is not possible  to top up
the engine oil under the prevailing conditions! Switch off the engine and seek
assistance from a ŠKODA specialist garage.
CAUTION
The oil level must on no account extend beyond the range A » Fig. 149 - Risk of
damaging the exhaust system!
Replenishing the engine oil
First read and observe the introductory information and safety warn-
ings
on page 169.
›
Check the engine oil level » page 172.
›
Unscrew the cap of the engine oil filler opening » Fig. 148 on page 172.
›
Replenish the oil in portions of 0.5 litres in accordance with the correct specifi-
cations » page 209 .
›
Check the oil level » page 172.
›
Carefully screw on the oil filler opening cap and push the dipstick in fully.

Changing engine oil
First read and observe the introductory information and safety warn-
ings
on page 169.
The engine oil must be changed at the intervals stated in the Service schedule or
according to the service interval indicator » page 11.
CAUTION
Do not pour any additives into the engine oil - Risk of serious engine damage!
Damage, which results from such product, are excluded from the warranty.
Note
If your skin has come into contact with oil, it must be washed thoroughly.
Coolant
First read and observe the introductory information and safety warn-ings
on page 169.
The coolant consists of water with a concentration of coolant additive. This mix-
ture guarantees antifreeze protection, protects the cooling/heater system
against corrosion and prevents the formation of scale.
Vehicles exported to countries with a mild climate are already factory-filled with
a coolant which offers antifreeze protection down to about -25 ℃. In these coun-
tries the concentration of coolant additive should be at least 40 %.
Vehicles exported to countries with a cold climate are already factory-filled with a
coolant which offers antifreeze protection down to about -35 °C. In these coun-
tries the concentration of coolant additive should be at least 50 %.
If a higher concentration of antifreeze is required for climatic reasons, the amount
of coolant additive can only be increased up to a maximum of 60 % (antifreeze
protection down to approx. -40 °C).
When refilling, only use the same antifreeze written on the antifreeze expansion tank » Fig. 150 on page 174. 
173Inspecting and replenishing

Coolant capacity1)Petrol enginesCapacities (in litres)1.2 ltr./63 kW TSI8.91.4 ltr./103 kW TSI10.21.8 ltr./132 kW TSI7.8Diesel enginesCapacities (in litres)1.6 ltr./77 kW TDI CR8.42.0 l/110 kW TDI CR - MG/DSG11,6 / 11,9
CAUTION
■
The amount of coolant additive in the coolant must never be allowed to be less
than 40 %.■
Over 60 % of coolant additive in the coolant reduces the antifreeze protection
and coolant effectiveness.
■
Other coolant additives that do not comply with the correct specifications can
above all significantly reduce the anticorrosion effect.
■
Any faults resulting from corrosion may cause a loss of coolant and can conse-
quently result in major engine damage!

Checking the coolant level
Fig. 150
Engine compartment: Coolant
expansion reservoir
First read and observe the introductory information and safety warn-
ings on page 169.
The coolant expansion bottle is located in the engine compartment.
Inspecting the coolant level›
Switch off the engine.
›
Open the bonnet.
›
Check the level of coolant in the coolant expansion bottle » Fig. 150.
Coolant level within range
A
The level may also rise slightly above the
A
marking when the engine is warm.
›
No coolant must be refilled.
Coolant level within range
A
and
B
When the engine is cold, the coolant level must lie between the
A
and
B
mark-
ings.
›
Coolant can be refilled.
Coolant level within range under
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 expansion tank is too low, this will be signalised by the warning light 
illuminating in the instrument cluster » page 15, Coolant temper-
ature/coolant level 
, however we recommend you regularly check the coolant
level in the container directly.
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 ŠKODA spe- cialist garage.
WARNING Do not continue your journey, if for some reason it is not possible to top up
the coolant under the prevailing conditions! Switch off the engine and seek
assistance from a ŠKODA specialist garage. 1)
On vehicles that are fitted with an auxiliary heater (auxiliary heating and ventilation), the coolant ca-
pacity is approx. 1 l larger.
174General Maintenance

CAUTION■Do not fill the coolant above the mark A » Fig. 150 .■If a fault causes the engine to overheat, we recommend visiting a ŠKODA Part-
ner, otherwise serious engine damage may occur.

Replenishing the coolant
First read and observe the introductory information and safety warn-ings
on page 169.
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.
Do not use an alternative additive if the specified coolant is not available in an emergency. In this case, just use water and have the correct mixing ratio of water
and the coolant additive restored by a ŠKODA specialist garage as soon as possi-
ble.

Radiator fan
First read and observe the introductory information and safety warn-
ings
on page 169.
After switching off the ignition, the fan can intermittently continue to operate for
approx. 10 minutes.
The radiator fan is powered by an electric motor. Operation is controlled accord-
ing to the temperature of the coolant.

Checking the brake fluidFig. 151
Engine compartment: Brake fluid
reservoir
First read and observe the introductory information and safety warn-
ings on page 169.
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. 151. 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.
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 14, Brake system 
.
WARNINGIf the fluid level has dropped below the MIN marking,  do not continue your
journey - risk of accident! Seek help from a ŠKODA specialist garage.

175Inspecting and replenishing

Brake fluid changeFirst read and observe the introductory information and safety warn-
ings
on page 169.
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.
The brake fluid must comply with the following standards or specifications: › VW 50114;
› FMVSS 116 DOT4.
WARNINGDo 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 replaced as part of a proscribed Inspection service carried out by
a ŠKODA Partner.
Windscreen washer system
Fig. 152
Engine compartment: Wind-
screen washer fluid reservoirFirst read and observe the introductory information and safety warn-
ings on page 169.
The windscreen washer fluid reservoir is located in the engine compartment and
contains the cleaning fluid for the windscreen or rear window and for the head-
light cleaning system.
The capacity of the reservoir is about 3 litres or about 4.7 litres on vehicles that
have a headlight cleaning system.
Clear water is not sufficient to intensively clean the windscreen and headlights.
We recommend using clean washing water together with the screen cleaner from
the range of ŠKODA Original Accessories (in winter additionally with antifreeze)
which is capable of removing stubborn dirt.
In Winter, the washing water should always be mixed with antifreeze even if the
vehicle has heated windscreen washer nozzles.
Under exceptional circumstances, methylated spirits can also be used if no screen
cleaner with antifreeze is available. The concentration of methylated spirits must
not be more than 15 %. The freeze protection at this concentration is sufficient
only to -5 °C.
CAUTION
■ Under no circumstances must radiator antifreeze or other additives be added to
the windscreen washer fluid.■
If the vehicle is fitted with a headlight cleaning system, only cleaning products
which do not attack the polycarbonate coating of the headlights must be added
to the windscreen washer fluid.
■
Do not remove the filter from the windscreen washer fluid reservoir when re-
plenishing it with liquid otherwise the liquid transportation system can be conta-
minated, which can cause the windscreen washer system to malfunction.

Vehicle battery
 Introduction
This chapter contains information on the following subjects:
Battery cover
178
Checking the battery electrolyte level
179
Charging a vehicle battery
179


176General Maintenance

Disconnecting and reconnecting the vehicle battery180
Automatic load deactivation
180
Warning symbols on the vehicle battery
SymbolDescription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!
Improper handling of the battery can lead to damage occurring. We recommend
having all work on the vehicle battery be undertaken by a ŠKODA Partner.
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. It is essen-
tial to comply with the warning instructions stated below and with the gener-
al applicable rules of safety.■
Keep children away from the vehicle battery.
■
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 the
vehicle battery.
■
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).
■
Acids coming into contact with water are diluted accompanied by significant
development of heat.
WARNING (Continued)■ Do not tilt the battery otherwise battery electrolyte may flow out of the bat-
tery vent openings. Protect the eyes with safety glasses or a shield! There is
the danger of suffering blindness!■
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!
■
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,
cable) creates a short circuit - risk of melting of lead struts, explosion and
burning of the battery, jets of acid spurting out.
■
It is prohibited to work with a naked flame and light.
■
Smoking or to carrying out any activities which produce sparks are prohibi-
ted.
■
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 of the electrical components and disconnect the negative
terminal (-) on the battery.
■
The relevant lamp must always be switched off before a light bulb is re-
placed.
■
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.
■
Never use a damaged vehicle battery – risk of explosion! Replace any vehicle
battery that is damaged. 
177Inspecting and replenishing

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 196, Jump-starting in vehicles with the START-STOP
system .
Note
We recommend having the quick charging of vehicle batteries undertaken by a
ŠKODA specialist garage.
Disconnecting and reconnecting the vehicle battery
First read and observe the introductory information and safety warn-ings
on page 176.
On disconnecting and reconnecting the vehicle battery the following functionsare initially deactivated or are no longer able to operate fault-free:
OperationOperating measureElectrical power window (operational faults)» page 41Enter the radio/navigation system code num-
ber» operating instructions for Info-
tainment radio or » operating in-
structions for Infotainment Navi-
gationSetting the clock» page 11Data in the multifunction display are deleted» page 22
Note
We recommend having the vehicle checked by a ŠKODA Partner to ensure the full
functionality of all electrical systems.
Automatic load deactivation
First read and observe the introductory information and safety warn-ings
on page 176.
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.
180General Maintenance

Wheels
Tyres and wheel rims
Introduction
This chapter contains information on the following subjects:
Tyre life
182
New tyres and wheels
183
Unidirectional tyres
184
Spare wheel
184
Full wheel trim
185
Wheel bolts
185
Tyre control display
185
Wheel bolts
186
Winter tyres
186
Snow chains
186WARNING■ 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!■
Never drive with damaged tyres – risk of accident!
■
Never exceed the maximum permissible load bearing capacity of mounted
tyres.
■
Immediately replace damaged wheel rims or tyres.
■
On all four wheels, use only radial tyres of the same type, size (rolling cir-
cumference) and the same tread pattern.
■
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!
■
The maximum permissible speed for your tyres must not be exceeded under
any circumstances – risk of an accident resulting from tyre damage and loss of
control of the vehicle.
WARNING (Continued)■ 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.■
For safety reasons, do no replace tyres individually.
■
Never use tyres if you do not know anything about the condition and age.
■
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).
■
Do not use summer or winter tyres that are older than 6 years or 4 years re-
spectively.
■
The wheel bolts must be clean and must turn easily. Never treat them 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.
■
In case of incorrect treatment of the wheel bolts, the wheel can loosen
when the car is moving – risk of accident!
■
Never drive with more than one spare wheel mounted.
■
Only use the spare wheel while absolutely necessary.
■
The snow chains cannot be used on the spare wheel.
■
An incorrect wheel alignment at the front or rear impairs handling - risk of
accident!
■
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.
■
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 ŠKODA specialist garage to have the vehicle checked.
■
To low or too high inflation pressure impairs handling - risk of an accident!
■
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. 
181Wheels

240 km/h
270 km/h
Load index
This indicates the maximum permisible load on each indvidua tyre.
615 kg
630 kg
650 kg
690 kg
730 kg
775 kg
CAUTION
The information about the speed symbol and load index are listed for your vehicle in your vehicle documents.
Unidirectional tyres
First read and observe the introductory information and safety warn-
ings
on page 181.
The direction of rotation of the tyres is marked by arrows on the wall of the tyre.
The so specified running direction must absolutely be complied with. Only then
are the tyres able to provide the optimal properties in terms of grip, low noise,
wear-and-tear and aquaplaning.

Spare wheel
Fig. 157
Luggage compartment: Spare
wheel
VW919293959799First read and observe the introductory information and safety warn-
ings on page 181.
The spare wheel is located in a well under the floor covering in the luggage com-
partment and is fixed in place with a special bolt » Fig. 157.
Before removing the spare wheel, the box containing the vehicle tool kit must be removed.
If the dimensions or design of the spare wheel differ from the tyres fitted to the
vehicle (e.g. winter tyres or low-profile tyres), it must only be used briefly in the
event of a puncture and if an appropriately cautious style of driving is adop-
ted »
.
Install a wheel having the appropriate version and dimensions as soon as possi-
ble.
Spare wheel
A warning label is displayed on the rim of the spare wheel.
Please note the following if you intend to use this wheel.
› The warning label must not be covered after installing the wheel.
› Be specially attentive when driving.
› The inflation pressure for the spare wheel is identical to the maximum inflation
pressure of the standard tyres. The spare wheel R 18 must have an inflation
pressure of 420 kPa!
› Only use this temporary spare wheel to reach the nearest ŠKODA specialist ga-
rage as it is not intended for continuous use.
› No other summer or winter tyres must be mounted on the rim of the spare
wheel R 18.
WARNING■ Never use the temporary spare wheel if it is damaged.■If the dimensions or design of the temporary spare wheel differ from the fit-
ted tyres, never drive faster than 80 km/h (or 50 mph).■
Avoid accelerating at full throttle, sharp braking and fast cornering.
CAUTION
Observe the instructions on the warning label on the spare wheel.
184General Maintenance