engine SKODA OCTAVIA 2012 3.G / (5E) Manual PDF

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 environment
A 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.
Battery coverFig. 153
Engine compartment: Polyester
cover of vehicle battery
First read and observe the introductory information and safety warn-
ings on page 176.
The battery is located in the engine compartment - in some models, underneath apolyester cover » Fig. 153.
›
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.

178General Maintenance

Checking the battery electrolyte levelFig. 154
Vehicle battery: Electrolyte level
indicator
First read and observe the introductory information and safety warn-
ings on page 176.
On vehicles with a vehicle battery fitted with a colour indicator, the so-called magic eye » Fig. 154, 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.
For technical reasons, on vehicles with the description “AGM”, the electrolyte lev- el 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.
We recommend you have the electrolyte level checked by a ŠKODA specialist ga-
rage from time to time, 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 ŠKODA Partner before the start of the winter.
NoteThe battery electrolyte level is periodically checked by a ŠKODA Partner as part of
the Inspection Service.
Charging a vehicle battery
First read and observe the introductory information and safety warn-ings
on page 176.
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 thedevice.
›
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.
Replacing the vehicle battery
When replacing a battery, the new vehicle battery must have the same capacity,
voltage, amperage and be the same size. Suitable types of vehicle batteries can
be purchased from a ŠKODA Partner.
We recommend that the battery is replaced by a ŠKODA Partner, where the new
vehicle battery will be installed properly and the original battery will be disposed
of in accordance with national regulations. 
179Inspecting 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

The vehicle tool kit and the lifting jack are housed in a plastic box in the sparewheel or in the storage space for the spare wheel. There is also space here for
the removable ball rod for the trailer towing device. The box is attached with a
strap on the spare wheel.
Tool kit components » Fig. 161:
Screwdriver
Key for removing and installing the tail light
Adapter for anti-theft wheel bolts
Towing eye
Clamps for removing the wheel trims
Car jack
Crank for the jack
Wheel wrench
Extraction pliers for wheel bolt caps
Replacement bulb set
Screw the jack back into its home position after use to allow you to store it in the
box with the toolkit.WARNING■ The factory-supplied lifting jack is only intended for your model of vehicle.
Under no circumstances attempt to lift heavier vehicles or other loads – risk of
injury!■
Ensure that the vehicle tool kit is safely secured in the luggage compart-
ment.
Note
Ensure that the box is always secured with the strap.
Changing a wheel
 Introduction
This chapter contains information on the following subjects:
Preliminary work
190
Changing a wheel
19012345678910Subsequent steps190Loosening/tightening wheel bolts191
Raising the vehicle
191
Securing wheels against theft
192WARNING■ If you are in flowing traffic, switch on the hazard warning light system and
set up the warning triangle at the prescribed distance! The national legal re-
quirements must be observed.■
If the wheel is damaged or in the event of a puncture, park the vehicle as far
away as possible from the flow of traffic. Park on as flat and firm a surface as
possible.
■
If the wheel has to be changed on a slope, first of all block the opposite
wheel with a stone or similar object to prevent the vehicle from unexpectedly
rolling away.
■
If the vehicle is subsequently fitted with tyres which are different to those it
was fitted with at the works, follow these guidelines » page 183, New tyres
and wheels .
■
Always raise the vehicle with the doors closed.
■
Never position any body parts, such as arms or legs under the vehicle, while
the vehicle is raised with a lifting jack.
■
Secure the base plate of the lifting jack with suitable means to prevent pos-
sible moving. A soft and slippery ground under the base plate may move the
lifting jack, causing the vehicle to fall down. It is therefore always necessary to
place the lifting jack on a solid surface or use a wide and stable base. Use a
non-slip base (e.g. a rubber foot mat) if the surface is smooth, such as cobbled
stones, tiled floor, etc.
■
Never start the engine with the vehicle sitting on the raised jack – danger of
suffering injury.
■
Only attach the lifting jack to the attachment points provided for this pur-
pose.
CAUTION
■ The prescribed tightening torque of the wheel bolts for steel and light alloy
wheels is 120 Nm.■
If the anti-theft wheel bolt is fastened too tightly, it can cause damage to the
anti-theft wheel bolt and adapter. 
189Do-it-yourself

Note■The anti-theft wheel bolt set and adapter can be purchased from a ŠKODA Part-
ner.■
The national legal requirements must be observed when changing a wheel.

Preliminary work
First read and observe the introductory information and safety warn-ings
on page 189.
The following steps must be carried out before actually changing the wheel:
›
Park the vehicle as far away as possible from the flow of traffic. The place you choose should be level.
›
Let all of 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).
›
Switch off the engine and move the gearshift lever into Neutral or move the se-
lector lever on the automatic gearbox into position P.
›
Firmly apply the handbrake.
›
If a trailer is connected, remove it.
›
Remove the vehicle tool kit » page 188 and the spare wheel » page 184 from
the luggage compartment.

Changing a wheel
First read and observe the introductory information and safety warn-
ings
on page 189.
Always change a wheel on a level surface as far as possible.
›
Remove the full wheel trim » page 185 or caps » page 185 .
›
First of all slacken the anti-theft wheel bolt and then the other wheel
bolts » page 191 .
›
Jack up the vehicle until the wheel that needs changing is clear of the
ground » page 191 .
›
Unscrew the wheel bolts and place them on a clean surface (cloth, paper, etc.).
›
Remove the wheel.
›
Attach the spare wheel and slightly screw on the wheel bolts.
›
Lower the vehicle.
›Alternately tighten the wheel bolts opposite each other using the wheel
wrench (crosswise) and then tighten the anti-theft wheel bolt » page 191.›
Replace the wheel trim or the caps.
Note
■
All bolts must be clean and must turn easily.■Under no circumstances grease or oil the wheel bolts!■
When fitting unidirectional tyres, ensure that the direction of rotation is cor-
rect » page 181 .

Subsequent steps
First read and observe the introductory information and safety warn-
ings
on page 189.
The following steps must also be performed after changing the wheel.
›
Stow and attach the replaced wheel in the spare wheel well using a special screw » page 184 .
›
Stow the vehicle tool kit in the space provided.
›
Check the tyre pressure on the installed spare wheel as soon as possible.
›
Have the tightening torque of the wheel bolts checked with a torque wrench
as soon as possible.
›
Change the damaged wheel or consult a ŠKODA specialist garage about repair
possibilities.
Note
■ If it is determined that the wheel bolts are corroded and difficult to turn when
changing the wheel, the bolts must be replaced before checking the tightening
torque.■
Drive cautiously and only at a moderate speed until the tightening torque has
been checked.

190Do-it-yourself

NoteImmediately replace the wheel that was repaired using the breakdown kit or con-
sult a ŠKODA specialist garage about repair possibilities.
Breakdown kit
Fig. 166
Components of the breakdown kit
First read and observe the introductory information and safety warn-
ings
on page 192.
The kit is located in a box under the floor covering in the luggage compartment.
Explanation of graphic Valve remover
Sticker with speed designation “max. 80 km/h”
Inflation hose with plug
Air compressor
Tyre inflation hose
Tyre inflation pressure indicator
Air release valve
ON and OFF switch
12 volt cable connector
Tyre inflator bottle with sealing agent
Replacement valve core
1234567891011The valve remover 1 has a slot at its lower end which fits into the valve core.
This is the only way in which you can remove and re-install the valve core from
the tyre valve. The same also applies to the replacement valve core 11
.
Note
■ Observe the manufacturer's usage instructions for the breakdown kit.■A new bottle of sealant can be purchased from ŠKODA Original Parts.

Preparing to use the breakdown kit
First read and observe the introductory information and safety warn-
ings
on page 192.
The following preparatory work must be carried out before using the breakdown
kit.
›
Park the vehicle as far away as possible from the flow of traffic. Park on as flat and firm a surface as possible.
›
If you are in flowing traffic, switch on the hazard warning light system and set
up the warning triangle at the prescribed distance! The national legal require-ments must be observed.
›
Let all of 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).
›
Switch off the engine and move the gearshift lever into Neutral or move the se-
lector lever on the automatic gearbox into position P.
›
Firmly apply the handbrake.
›
Check that you can carry out the repairs with the breakdown kit » page 192.
›
If a trailer is connected, remove it.
›
Remove the breakdown kit from the luggage compartment.
›
Stick the sticker
2
» Fig. 166 on page 193 on the dash panel in view of the driv-
er.
›
Unscrew the valve cap.
›
Use the valve remover
1
to unscrew the valve core and place it on a clean sur-
face (rag, paper, etc.).

193Do-it-yourself

Sealing and inflating tyresFirst read and observe the introductory information and safety warn-ings
on page 192.
Sealing
›
Forcefully shake the tyre inflator bottle
10
» Fig. 166 on page 193 several times.
›
Firmly screw the inflation hose
3
onto the tyre inflator bottle
10
clockwise.
The film on the cap is pierced automatically.
›
Remove the plug from the inflation hose
3
and plug the open end fully onto
the tyre valve.
›
Hold the bottle
10
with the bottom facing upwards and fill all of the sealing
agent from the tyre inflator bottle into the tyre.
›
Remove the empty tyre inflator bottle from the valve.
›
Screw the valve core back into the tyre valve using the valve remover
1
.
Inflating
›
Screw the tyre inflation hose
5
» Fig. 166 on page 193 of the air compressor
firmly onto the tyre valve.
›
Check that the air release valve
7
is closed.
›
Start the engine and run it in idle.
›
Plug the connector
9
into 12 Volt socket » page 71.
›
Switch on the air compressor with the ON and OFF switch
8
.
›
Allow the air compressor to run until a pressure of 2.0 - 2.5 bar is achieved. Max-
imum run time of 8 minutes » !
›
Switch off the air compressor.
›
If you cannot reach an air pressure of 2.0 – 2.5 bar, unscrew the tyre inflation
hose
5
from the tyre valve.
›
Drive the vehicle 10 metres forwards or backwards to allow the sealing agent to
“distribute” in the tyre.
›
Firmly screw the tyre inflation hose
5
back onto the tyre valve and repeat the
inflation process.
›
If you cannot reach the required tyre inflation pressure here either, this means
the tyre has sustained too much damage. You cannot seal with tyre with the breakdown kit »
.
›
Switch off the air compressor.
›
Remove the tyre inflation hose
5
from the tyre valve.
Once a tyre inflation pressure of 2.0 – 2.5 bar is achieved, continue the journey at
a maximum speed of 80 km/h.
Check the tyre inflation pressure after driving for 10 minutes » page 194.
WARNING■
During inflation, the tyre inflation hose and air compressor may get hot- risk
of injury!■
Do not place the hot tyre inflation hose or hot air compressor on flammable
materials – risk of fire!
■
If you cannot inflate the tyre to at least 2.0 bar, this means the damage sus-
tained was too serious. The sealing agent cannot be used to seal the tyre. 
Do not drive the vehicle. Seek help from a ŠKODA specialist garage!
CAUTION
Switch off the air compressor after running 8 minutes at the latest – danger of
overheating! Allow the air compressor to cool a few minutes before switching it
on again.
Check after driving for 10 minutes
First read and observe the introductory information and safety warn-
ings
on page 192.
Check the tyre inflation pressure after driving for 10 minutes!
If the tyre inflation pressure is 1.3 bar or less:
›
 Do not drive the vehicle! You cannot properly seal with tyre with the break-
down kit.
›
Seek help from a ŠKODA specialist garage.
If the tyre inflation pressure is 1.3 bar or more:
›
Adjust the tyre inflation pressure to the correct value (see inside of fuel filler cap).
›
Continue driving carefully to the nearest ŠKODA specialist garage at a maximum
speed of 80 km/h.

194Do-it-yourself

Jump-starting
Introduction
This chapter contains information on the following subjects:
Jump-starting using the battery from another vehicle
195
Jump-starting in vehicles with the START-STOP system
196
The battery of another vehicle can be used to jump-start your vehicle if the en-
gine will not start because the battery is flat. Jump-start cables are required for
this purpose.
Both batteries must have a rated voltage of 12 V. The capacity (Ah) of the battery
supplying the power must not be significantly less than the capacity of the dis- charged battery in your vehicle.
Jump-start cables
Only use jump-start cables which have an adequately large cross-section and in-
sulated terminal clamps. Observe the manufacturer's instructions.
Positive cable – colour coding in the majority of cases is red.
Negative cable – colour coding in the majority of cases is black.
WARNING■
A discharged vehicle battery may already freeze at temperatures just below
0 °C. In case of frozen battery carry out no jump-starting – risk of explosion!■
Pay attention to the warning instructions relating to working in the engine
compartment » page 169, Engine compartment .
■
The non-insulated parts of the terminal clamps must never make contact
with each other. In addition, the jump-start cable connected to the positive
terminal of the battery must not come into contact with electrically conduct-
ing parts of the vehicle – risk of short circuit!
■
Do not clamp the jump-start cable to the negative terminal of the dis-
charged battery. There is the risk of detonating gas seeping out the battery
being ignited by the strong spark which results from the engine being started.
■
Route the jump-start cables so that they cannot be caught by any rotating
parts in the engine compartment.
■
Do not bend over the battery – risk of caustic burns!
■
The vent screws of the battery cells must be tightened firmly.
WARNING (Continued)■ Keep any sources of ignition (naked flame, smouldering cigarettes, etc.)
away from the battery – risk of an explosion!■
Never jump-start vehicle batteries with an electrolyte level that is too low –
risk of explosion and caustic burns.
Note
■ There must not be any contact between the two vehicles otherwise current
may flow as soon as the negative terminals are connected.■
The discharged battery must be properly connected to the system of the vehi-
cle.
■
We recommend you buy jump-start cables from a car battery specialist.

Jump-starting using the battery from another vehicle
Fig. 167
Jump-starting: A – flat battery, B
– battery providing current
First read and observe the introductory information and safety warn-
ings on page 195.
The jump-start cables must be attached in the following sequence.
›
Attach one end
1
on the positive terminal
A
» Fig. 167 .
›
Attach the other end
2
to the positive terminal
B
.
›
Attach one end
3
on the minus terminal
B
.
›
Attach the other end
4
to a solid metal part which is connected firmly to the
engine block, or to the engine block itself.
Starting engine
›
Start the engine on the vehicle providing the power and allow it to idle.
›
Now start the engine of the vehicle with the discharged battery. 
195Do-it-yourself

›If the engine does not start, terminate the attempt to start the engine after
10 seconds and wait for about 30 seconds before repeating the process.›
Disconnect the cables in exactly the reverse order to the one described above.

Jump-starting in vehicles with the START-STOP system
Fig. 168
Engine compartment: Earth
First read and observe the introductory information and safety warn-
ings on page 195.
On vehicles with the START-STOP system, the jump-start cable of the charger
must never be connected directly to the negative pole of the vehicle battery, but
only to the engine earth » Fig. 168.

Towing the vehicle

Introduction
This chapter contains information on the following subjects:
Front towing eye
197
Rear towing eye
197
Vehicles a towing device
198
Vehicles with manual transmission may be towed in with a tow bar or a tow rope
or with the front or rear wheels raised.
Vehicles with automatic transmission may be towed in with a tow bar or a tow
rope or with the front wheels raised. If the vehicle is raised at rear, the automatic
gearbox is damaged!
A tow bar is the safest way of towing a vehicle and also minimises any shocks.
Only use a tow rope if a suitable tow bar is not available.
The following guidelines must be observed.
Driver of the tow vehicle›
Release the clutch particularly gently when starting off or depress the accelera-
tor particularly gently if the vehicle is fitted with an automatic gearbox.
›
On vehicles with a manual transmission, only push down on the accelerator pedal once the rope is taught.
The maximum towing speed is 50 km/h.
Driver of the towed vehicle
›
Switch on the ignition so that the steering wheel is not blocked and so that the
turn signal lights, horn, windscreen wipers and windscreen washer system can be switched on.
›
Take the vehicle out of gear or move the selector lever into position N if the ve-
hicle is fitted with an automatic gearbox.
Please note that the brake servo unit and power steering only operate if the en-
gine is running. If the engine is not running, significantly more physical force is re- quired to depress the brake pedal and steer the vehicle.
If using a tow rope, ensure that it is always kept taught.
CAUTION
■ Do not tow start the engine - danger of damaging the engine! On vehicles with
a catalytic converter, unburnt fuel may get into the catalytic converter where it
may ignite. This in turn may damage or destroy the catalytic converter. The bat-
tery from another vehicle can be used as a jump-start aid » page 195, Jump-start-
ing .■
If the gearbox of your vehicle no longer contains any oil because of a defect,
your vehicle must only be towed in with the driven wheels raised clear of the
ground, or on a special vehicle transporter or trailer.
■
The vehicle must be transported on a special vehicle or trailer if it is not possible
to tow in the vehicle in the way described or if the towing distance is greater than
50 km.
■
To protect both vehicles when tow-starting or towing, the tow rope should be
elastic. Thus one should only use plastic fibre rope or a rope made out of a simi-
larly elastic material. 
196Do-it-yourself

Fuses and light bulbs
Fuses
Introduction
This chapter contains information on the following subjects:
Fuses in the dash panel
200
Fuses in the engine compartment
201
Individual electrical circuits are protected by fuses.
› Switch off the ignition and the appropriate consumer before changing a fuse.
› Find out which fuse belongs to the component that is not operat-
ing » page 200 , Fuses in the dash panel or » page 201 , Fuses in the engine
compartment .
› Take the plastic clip located under the cover of the fuse box in the engine com-
partment, insert into the fuse and remove it » Fig. 173 on page 201.
› A blown fuses is recognisable by the molten metal strip. Replace the faulty fuse
with a new one of the same amperage.
The plastic clip can be found underneath the cover of the fuse box in the engine
compartment » Fig. 173 on page 201.
Electrically adjustable seats are protected by automatic circuit breakers, which
switch on again automatically after a few seconds after the overload has been
eliminated.
Colour coding of fuses
ColourMaximum amperagelight brown5dark brown7.5red10blue15yellow/blue20white25green/pink30orange/green40red50WARNINGAlways read and observe the warnings before completing any work in the en-
gine compartment » page 169.
CAUTION
■
Have the electrical system checked as quickly as possible by a ŠKODA specialist
garage if a newly inserted fuse blows again after a short time.■
The cover for the fuse box in the engine compartment must always be applied
correctly. If the cover is not replaced properly, water may get into the fuse box -
risk of vehicle damage!
■
Never repair fuses and also do not replace them with a fuse of a higher amper-
age - risk of fire! A different electrical system could be damaged.
Note
■ We recommend always carrying replacement fuses in the vehicle. A box of re-
placement fuses can be purchased from ŠKODA Original Accessories.■
Multiple fuses may exist for a single power consuming device.
■
Multiple power consuming devices can share a single fuse.

199Fuses and light bulbs