ignition SKODA OCTAVIA 2015 3.G / (5E) Manual PDF

when the engine is restarted. This is not due to any system leakages but a
drop in pressure in the natural gas fuel tank due to technical reasons after a
cooling phase directly after refuelling.
The maximum lifetime of the gas tank is 20 years.
The capacity of the natural gas fuel tank is approximately 15 kg.
The capacity of the gasoline fuel tank is about 50 litres, of which about 6
lighters are in reserve.WARNING■
When refuelling, never get into the vehicle. If you have to get into your
vehicle in exceptional cases, touch a metal surface before you touch the
filling coupling again. This will avoid electrostatic discharges, which may
generate sparks. Sparks can cause a fire during refuelling.■
Natural gas is highly explosive and highly flammable.
Note
During the filling process sounds are heard which are harmless. If you are un-
sure which service station staff to use, ask the petrol station staff.
CNG
Fig. 202
Position of the CNG label(s).
Read and observe
and on page 189 first.
A G-TEC-vehicle may be operated with CNG and petrol.
In some countries, national legislation requires that vehicles with CNG opera-
tion be identified by one of the labels » Fig. 202.
Position of the CNG label » Fig. 202.
Natural gas quality and consumption
Depending on the natural gas supplier, the natural gas quality (heating value) may vary. The engine system adjusts automatically to the natural gas quality.
Automatically switching over from natural gas mode to petrol mode
The vehicle automatically switches from natural gas to petrol, for example, if
one of the following cases occurs. ▶ With an empty gas tank or not enough pressure in the tank.
▶ After refuelling with natural gas.
▶ At very low surrounding temperatures.
Use all the petrol in the fuel tank at lease once every six months until the
warning light 
illuminates and then refill with petrol. This is to ensure that
the fuel system functions correctly and to preserve the quality of the fuel.
Gas leak
If a gas leak is suspected (noticeable odour), proceed as follows. ▶ Stop the vehicle.
▶ Switch off the ignition.
▶ Put out any cigarettes, remove any spark-producing or incendiary items from
the vehicle and immediately switch the engine off.
▶ Open the doors and the boot lid to ventilate the vehicle sufficiently.
▶ Do not continue to drive if the odour persists.
▶ If it is not possible to leave an enclosed area with a vehicle with a gas leak
(e.g. in a tunnel, underpass, garage, ferry, etc.), call the emergency services
immediately.
Seek help from a specialist garage to correct the gas system fault.
In a traffic accident
If a gas leak is suspected in a traffic accident, proceed as follows.
▶ Switch off the ignition.
▶ Put out any cigarettes, remove any spark-producing or incendiary items from
the vehicle and immediately switch the engine off.
▶ Have all the occupants get out.
▶ Prevent people walking past/standing in the immediate vicinity of the acci-
dent vehicle. We recommend standing at least 10 metres from the vehicle.
▶ Inform the emergency services that it is a natural gas vehicle.
Regular gas system checks
Regular gas system checks must be carried out in a specialist workshop on
natural gas-powered vehicles. The vehicle owner is responsible for ensuring
tests are conducted properly. 193Inspecting and replenishing

Every 2 years
▶ Check the filler cap.
▶ Check the condition of fuel filler tubes and the sealing ring in the fuel filler
tubes, and clean the sealing ring if necessary.
▶ Check the gas system for leaks.
Every 4 years
▶ Inspect the gas tank.
Every 20 years ▶ Replace the gas tank.WARNING■ Do not underestimate the smell of gas in the car or when refuelling - risk
of fire, explosion and injury.■
The natural gas tanks in the vehicle must not be exposed to unwanted
heat sources.
Engine compartment
 Introduction
This chapter contains information on the following subjects:
Opening and closing the bonnet
195
Engine compartment overview
196
Radiator fan
196
Windscreen washer system
196WARNINGWhen working in the engine compartment, injuries, scolding, accident or
fire hazards may arise. For this reason, it is essential to comply with the
warning instructions stated below and with the general applicable rules of
safety. The engine compartment of your car is a hazardous area!WARNINGInstructions before beginning work in the engine compartment■Turn off the engine and remove the ignition key.■
Firmly apply the handbrake.
■
For vehicles with manual transmission the lever into the neutral position.
WARNING (Continued)■ On vehicles with automatic transmission, shift the selector lever into the
P position.■
Allow the engine to cool.
■
Never open the bonnet if you can see steam or coolant flowing out of the
engine compartment – risk of scalding! Wait until the steam or coolant has
stopped escaping.
WARNINGInformation for working in the engine compartment■Keep all people, especially children, away from the engine compartment.■
Never touch the radiator fan. The fan might suddenly start running!
■
Do not touch any hot engine parts – risk of burns!
WARNINGInformation for working in the engine compartment with the engine run-
ning■
Pay particular attention to moving engine parts, e.g. V-ribbed belt, gener-
ator, radiator fan - danger to life!
■
Never touch the electric wiring on the ignition system.
■
Avoid short circuits in the electrical system, particularly on the vehicle's
battery.
■
Always make sure that no jewellery, loose clothing or long hair can get
caught in rotating engine parts – risk of death! Always remove any jewel-
lery, tie back long hair and wear tight fitting clothing before completing any
work.
WARNINGInformation for working on the fuel system or the electrical system■Always disconnect the vehicle battery from the electrical system.■
Do not smoke.
■
Never work near open flames.
■
Always have a functioning fire extinguisher nearby.
WARNING■ Read the information and warning instructions on the fluid containers.■Keep the working fluids in sealed original containers and safe from peo-
ple who are not completely independent, e.g. children. 194General Maintenance

Engine compartment overviewFig. 204
Principle sketch: Engine compartment
Read and observe
and on page 194 first.
Layout of the engine compartment » Fig. 204
Coolant expansion reservoir
199
Engine oil dipstick
198
Engine oil filler opening
198
Brake fluid reservoir
200
Battery (below a cover)
201
Windscreen washer fluid reservoir
196
Note
The location of the inspection points in the engine compartment of petrol and
diesel engines is practically identical.
Radiator fan
Read and observe
and on page 194 first.
The radiator fan is powered by an electric motor. Operation is controlled ac-
cording to the temperature of the coolant.
ABCDEFWARNINGAfter switching off the ignition, the fan can intermittently continue to oper-
ate for approx. 10 minutes.
Windscreen washer system
Fig. 205
Windscreen washer fluid reser-
voir
Read and observe and on page 194 first.
The windscreen washer fluid reservoir
A
is located in the engine compart-
ment » Fig. 205 .
The cleaning fluid is provided for the cleaning of the front and rear window as
well as the headlight.
The capacity of the reservoir is about 3 litres or about 4.7 litres on vehicles that
have a headlight cleaning system 1)
.
Clear water is not sufficient to intensively clean the windscreen and head-
lights. 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. 
1)
In some countries, 4.7 ltr. applies for both variants.
196General Maintenance

Winter time
The vehicle battery only has a proportion of the starting power in lower tem-
peratures. A discharged vehicle battery may already freeze at temperatures
just below 0 °C .
We therefore recommend that you have the battery checked and, if necessary,
recharged by a specialist garage before the start of the winter.
Note
The battery acid level is also checked regularly by a specialist garage as part of
the inspection service.
Charging
Read and observe
and on page 201 first.
A properly charged vehicle battery is essential for reliably starting the engine.A charging operation can be performed if the following conditions are satis-
fied.
The engine is turned off.
The ignition is switched off.
All consumers are turned off.
The bonnet is open.
“Fast charging” with high currents
›
Disconnect both battery cables (first of all “negative”, then “positive”).
›
Attach the terminal clamps of the charger to the battery terminals (red =
“positive”, 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 the
mains 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”).
Charging with low voltages
It is not necessary to disconnect the cables from the battery if you recharge
the vehicle battery, 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 low-
er) must be used until full charging is achieved.
The vent plugs of the vehicle battery should not be opened for charging.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 metal ob-
jects - cables) creates a short circuit - risk of damage to the battery, explo-
sion and burning of the battery, jets of acid spurting out.
■
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 and all electrical components and disconnect the negative
terminal 
.
■
“Quick-charging” the vehicle battery is dangerous and requires a special
charger and specialist knowledge.
■
We therefore recommend that vehicle batteries be “rapidly charged” by a
specialist garage.
CAUTION
On vehicles with the START/STOP system or additional heating (auxiliary heat-
ing), do not connect the pole terminal of the charger directly to the negative
terminal of the vehicle battery, but rather only to the engine earth » page 219,
Jump-starting using the battery from another vehicle .
Replacing
Read and observe
and on page 201 first.
The new vehicle battery must have the same capacity, voltage, current and
size as the original battery. Suitable vehicle battery types can be purchased
from a specialist garage.
We recommend you have the battery replaced by a specialist garage.
Disconnecting and reconnecting
Read and observe
and on page 201 first.
Disconnecting
›
Switch off the ignition. 
203Inspecting and replenishing

›Firstly disconnect the battery's negative terminal
, followed by the positive
terminal .
Connecting›
Firstly connect the battery's positive terminal 
, followed by the negative
terminal 
.
After disconnecting and re-connecting the vehicle battery, the following func- tions or devices are partially or completely inoperative.
Function / deviceOperating measureElectrical power windows» page 64Panorama sliding/tilting roof» page 66Sun screen» page 66Time settings» page 31
CAUTION
■ Disconnect the vehicle battery only with the ignition turned off - there is a
risk of damaging the electrical system of the vehicle.■
Under no circumstances must the battery cables be connected incorrectly –
risk of a cable fire.
Note
■ After disconnecting and re-connecting the vehicle battery, we recommend
having the vehicle checked by a specialist to ensure that the full functionality
of all electrical systems is guaranteed.■
The data of the multi-function display will be reset.
Automatic load deactivation
Read and observe
and on page 201 first.
The vehicle's electrical system automatically prevents the battery from dis-
charging when the battery is being heavily used. This manifests itself by the
following. ▶ 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
vehicle battery may be drained. For example, when the ignition is switched on
a long time with the engine turned off or the side or parking lights are turned
on during 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
driver is not aware of it having taken place.204General Maintenance

WARNING■If the tyre cannot be inflated to at least. 2.0 bar, the damage is too great.
The sealing agent cannot be used to seal the tyre.  Do not drive the vehi-
cle. Seek help from a specialist garage.■
The tyre inflation hose and air compressor may get hot as the tyre is be-
ing inflated – risk of burning.
CAUTION
Switch off the air compressor after running 8 minutes at the latest – risk of
overheating! Allow the air compressor to cool a few minutes before switching
it on again.
Notes for driving with a repaired tyre
Read and observe
on page 217 first.
The inflation pressure of the repaired tyre must be checked 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
breakdown kit.
If the tyre inflation pressure is 1.3 bar or more
›
Set the tyre pressure back to the correct value.
›
Continue driving carefully to the nearest specialist garage at a maximum
speed of 80 km/h (50 mph).
WARNING■ A tyre filled with sealant has the same driving characteristics as a stand-
ard tyre.■
Do not drive faster than 80 km/h (50 mph).
■
Avoid accelerating at full throttle, sharp braking and fast cornering.
Jump-starting
 Introduction
This chapter contains information on the following subjects:
Jump-starting using the battery from another vehicle
219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.WARNING■ Pay attention to the warning instructions relating to working in the en-
gine compartment » page 194.■
A discharged vehicle battery may already freeze at temperatures just be-
low 0 °C. If the battery is frozen, do not carry out a jump start with the bat-
tery of another vehicle – risk of explosion!
■
Keep any sources of ignition (naked flame, smouldering cigarettes, etc.)
away from the battery – risk of explosion!
■
Never jump-start vehicle batteries with an electrolyte level that is too low
– risk of explosion and caustic burns.
■
The vent screws of the battery cells must be tightened firmly.
Note
We recommend you buy jump-start cables from a car battery specialist.
Jump-starting using the battery from another vehicle
Fig. 224
Jump-starting: A – flat battery, B
– battery providing current 
219Emergency equipment, and self-help

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 auto-
matic gearbox is damaged! If possible, the vehicle should be towed with the
engine running or at least with the ignition on.
Driver of the tow vehicle›
Engage the clutch gently when starting off or depress the accelerator partic-
ularly gently if the vehicle is fitted with an automatic gearbox.
›
Only then approach correctly when the rope is taut.
The maximum towing speed is 50 km/h.
Driver of the towed vehicle
›
Switch on the ignition so that the steering wheel is not locked and so that
the turn signal lights, windscreen wipers and windscreen washer system can
be used.
›
Take the vehicle out of gear or move the selector lever into position N if the
vehicle is fitted with an automatic gearbox.
Please note that the brake servo unit and power steering only operate if the
engine is running. If the engine is not running, significantly more physical force
is required to depress the brake pedal and steer the vehicle.
If using a tow rope, ensure that it is always kept taught.
General information for the towing process
Both drivers should be familiar with the problems which might possibly occur while a vehicle is being towed. Unskilled drivers should not attempt to tow in
another vehicle or to be towed in.
The vehicle must be transported on a special breakdown vehicle or trailer if it
is not possible to tow in the vehicle in the way described or if the towing dis-
tance is greater than 50 km.
If the gearbox no longer contains any oil, your vehicle must only be towed with
the front axle raised clear of the ground or on a breakdown vehicle or trailer.
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
similarly elastic material.
Attach the tow rope or the tow bar to the towing eyes » page 221 or
» page 222 to the detachable ball head of the towing equipment » page 167 .
WARNING■
When towing, exercise increased caution.■Spiral tow ropes must not be used for towing » Fig. 226-  , the towing
eye may unscrew out of the vehicle - risk of accident.■
The tow rope should not be twisted - risk of accident.
CAUTION
■ Do not start engine by towing - there is a risk of damaging the engine parts.
The battery from another vehicle can be used as a jump-start aid » page 219,
Jump-starting .■
There is always a risk of excessive stresses and damage resulting at the
points to which you attach the tow rope or tow bar when you attempt to tow a
vehicle which is not standing on a paved road.
Note
We recommend using a tow rope from ŠKODA Original Accessories available
from a ŠKODA Partner.
Front towing eye
Fig. 227
Removing the cap / installing the towing eye
Read and observe
and on page 221 first.
Removing/installing the cap
›
Press on the cap in the direction of the arrow
1
» Fig. 227 .
›
Remove the cap in the direction of arrow
2
.
›
After unscrewing the towing eye, insert the cap in the area of arrow
1
and
then press the opposite side of the cap.
The cap must engage firmly. 
221Emergency equipment, and self-help

›Open the boot lid.
Selector lever-emergency unlocking
Fig. 235
Selector lever-emergency unlocking
›
Firmly apply the handbrake.
›
Open the stowage compartment in the front centre console
» page 91.
›
Grab hold of the cover
A
in the area of the arrows and carefully raise it for-
wards in the direction of the arrow
1
and then backwards » Fig. 235.
›
Use a finger to press the yellow plastic part in the direction of the arrow
2
.
›
At the same time, press the locking button in the selector lever and move
the selector lever to position N.
If the selector lever is moved again to position P, it is once again blocked.
Replacing windscreen wiper blades

Introduction
This chapter contains information on the following subjects:
Replacing the windscreen wiper blades
225
Replacing the rear window wiper blade
226WARNINGReplace the windscreen wiper blades once or twice a year for safety rea-
sons. These can be purchased from a ŠKODA Partner.Replacing the windscreen wiper bladesFig. 236
Windscreen wiper blade
Read and observe
on page 225 first.
Before replacing the windscreen wiper blade, put the windscreen wiper arms
into the service position.
Service position for changing wiper blades
›
Closing the bonnet.
›
Switch the ignition on and off again.
›
Within 10 seconds, press the lever in position
4
and hold it in position for
around 2 seconds » page 78, Windscreen wipers and washers .
The windscreen wiper arms move into the service position.
Removing the wiper blade
›
Lift the wiper arm from the window in the direction of
1
» Fig. 236 .
›
Tilt the wiper blade to the stop in the same direction.
›
Hold the upper part of the wiper arm and press the securing mechanism
A
in the direction of arrow
2
.
›
Remove the wiper blade in the direction of the arrow
3
.
Attaching the windscreen wiper blade
›
Push the windscreen wiper blade to the stop until it locks into place.
›
Check that the windscreen wiper blade is correctly attached.
›
Fold the windscreen wiper arm back to the windscreen.
›
Turn on the ignition and press the lever into position
4
» page 78 , Wind-
screen wipers and washers .
The windscreen wiper arms move into the home position.
225Emergency equipment, and self-help

Replacing the rear window wiper bladeFig. 237
Rear window wiper blade
Read and observe
on page 225 first.
Removing the wiper blade
›
Lift the wiper arm from the window in the direction of
1
» Fig. 237 .
›
Tilt the wiper blade to the stop in the same direction.
›
Hold the upper part of the wiper arm and press the securing mechanism
A
in the direction of arrow
2
.
›
Remove the wiper blade in the direction of the arrow
3
.
Attaching the windscreen wiper blade
›
Push the windscreen wiper blade to the stop until it locks into place.
›
Check that the windscreen wiper blade is correctly attached.
›
Fold the windscreen wiper arm back to the windscreen.
Fuses and light bulbs
Fuses
 Introduction
This chapter contains information on the following subjects:
Fuses in the dash panel – LHD
227
Fuses in the dash panel – RHD
227
Assignment of the fuses in the dash panel
228
Fuses in the engine compartment
229
Assignment of fuses in the engine compartment
229
Individual electrical circuits are protected by fuses.
Switch off the ignition and the corresponding power consuming device before
replacing a fuse.
Find out which fuse belongs to the component that is not operating
» page 228 , Assignment of the fuses in the dash panel or » page 229 , Assign-
ment of fuses in the engine compartment .
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
Fuse colourMaximum amperagelight brown5dark brown7.5red10blue15yellow/blue20white25green/pink30orange/green40red50 226Do-it-yourself

No.Consumer39Central locking front door - right, power windows - front and rear
right4012-Volt power socket41Not assigned42Central locking rear door - left, right, headlight washer system,
windscreen washer system43Visor for gas discharge bulbs, interior lighting44Towing hitch - contact in the socket45Operating the seat adjustment46230-Volt power socket47Rear window wiper48Not assigned49Coil on starter relay, clutch pedal switch50Opening the boot lid51Belt tensioner - front passenger side52Not assigned53Relay for rear window heater
Fuses in the engine compartment
Fig. 241
Removing the fuse box cover/fuses
Fig. 242
Cover for the fuse box in the en-
gine compartment: Plastic clip
for fuses
Read and observe and on page 227 first.
Replacing fuses
›
Press together the interlocks of the cover simultaneously in the direction of
the arrow
1
» Fig. 241 .
›
Remove the cover in the direction of the arrow
2
.
›
Replace the appropriate fuse.
›
Place the cover on top of the fusebox.
›
Push in the interlocks on the cover and lock.
CAUTION
The cover for the fuse box in the engine compartment must always be applied
correctly. Water may get into the fuse box if the cover is not replaced properly
- there is a risk of damage to the vehicle.
Assignment of fuses in the engine compartment
Read and observe
and on page 227 first.
No.Consumer1ESC, ABS2ESC, ABS3Engine control unit4Radiator fan, oil temperature sensor, air volume sensor, control
valve for fuel pressure, relay for electrical auxiliary heating, engine
components5Coil of the relay for the ignition system, coil of the CNG relay, en-
gine components6Brake sensor7Coolant pump, radiator shutter, engine components 229Fuses and light bulbs