2015 SKODA OCTAVIA ECU

Preheating fuel
The vehicle is fitted with a fuel filter preheating system. This secures opera-
tion of a vehicle using diesel fuel down to an environmental temperature of
-24 °C.
Diesel fuel additives
The diesel fuel in accordance with the prescribed standards meets all the con-
ditions for a smooth running engine. We therefore recommend that no diesel
fuel additives are used. This can result in considerable damage to parts of the
engine or the exhaust system.
CAUTION
■ Just filling the tank once with diesel fuel that does not comply with the
standard, can cause severe damage to parts of the engine, the fuel and ex-
haust system.■
If a different fuel other than diesel fuel, which complies to the above men-
tioned standards (e.g. petrol) is used, do not start the engine or switch on the
ignition! Extensive damage to engine parts can occur.
■
Water which has collected in the fuel filter can cause engine faults.
CAUTION
■ The vehicle cannot be operated with bio fuel RME, therefore this fuel must
not be filled in the tank and used for driving the vehicle. The use of biofuel
RME can cause considerable damage to parts of the engine or fuel system.■
Do not mix any fuel additives, so-called “flow improvers” (petrol and similar
agents) into the diesel. This can result in considerable damage to parts of the
engine or the exhaust system.
Refuelling with CNG (compressed natural gas)
Fig. 201
Natural gas filler tubes
Read and observe and on page 189 first.
Natural gas refuelling can be carried out if the following conditions are met.
The vehicle is unlocked.
The engine and the ignition are switched off.
The auxiliary heating and ventilation is switched off » page 118.
The gas filler tube for refuelling with natural gas is located behind the fuel fill-
er flap next to the petrol filler tube.
The filling couplings of the natural gas refuelling systems may differ in han-
dling. When refuelling with natural gas at unfamiliar refuelling systems, you
should seek help from trained fuel station staff. If unsure, have the refuelling
done by trained fuel station staff.
Open fuel filler flap
›
Open the fuel filler flap.
›
Remove cap
A
» Fig. 201 from gas filler tube
B
in direction of the arrow.
›
Plug the filling coupling of the refuelling system on the gas filler tube
B
.
The fuel tank is full when the compressor of the refuelling system automati-
cally switches off. To stop the refuelling operation prematurely, press the
“Stop ” button of the refuelling system.
Closing the filler cap
›
Check that sealing ring
C
» Fig. 201 has remained inserted in the gas filler
tube.
If sealing ring
C
has slipped onto the filling coupling, reinsert it into the gas
filler tube.
›
Plug the cap
A
onto the gas filler tube.
›
Close the bonnet.
The natural gas refuelling systems have an overfill protection relating to the
outdoor temperature. At very high outside temperatures, it may happen that
the gas tank may not be fully refuelled.
The natural gas system of your vehicle is suitable both for “slow fuelling” (fuel-
ling from small compressors) and for “quick fuelling” (fuelling from natural gas
stations with large compressors).
If the vehicle is parked for a longer period of time immediately after refuelling,
the situation may arise in which the pointer of the fuel tank gauge does not
indicate exactly the same level as was the case immediately after refuelling 

192General Maintenance

WARNING (Continued)■Never spill operating fluids over the hot engine - risk of fire.■If you wish to work under the vehicle, you must secure the vehicle from
rolling away and support it with suitable supporting blocks: the car jack is
not sufficient for this – risk of injury!
CAUTION
Always top up using the correct specification of fluids. This may result in major
operating problems and also vehicle damage!
For the sake of the environment
In view of the requirements for the environmentally friendly disposal of fluids and the special tools and knowledge required for such work, we recommend
that fluids be changed by a specialist garage.
Note
■ Please consult a specialist garage for any questions relating to fluids.■Fluids with the proper specifications can be purchased from the ŠKODA Origi-
nal Accessories or from the ŠKODA Genuine Parts ranges.
Opening and closing the bonnet
Fig. 203
Open the bonnet
Read and observe
and on page 194 first.
Open flap
›
Open the front door.
›
Pull the release lever underneath the dash panel in the direction of the ar-
row
1
» Fig. 203 .
Before opening the bonnet, ensure that the arms of the windscreen wipers
are correctly in place against the windscreen, otherwise the paintwork on the
flap could be damaged.›
Push the release lever in the direction of arrow
2
.
The bonnet is then unlocked.
›
Grasp the bonnet catch and lift in the direction of arrow
3
.
›
Remove the lid prop in the direction of arrow
4
from the holder.
›
Secure the open flap inserting the end of the post into the opening in the di-
rection of arrow
5
.
Close the flap
›
Lift the bonnet.
›
Decouple the bonnet support and press into the holder designed to hold it.
›
Let the bonnet drop into the lock carrier lock from a height of around 20 cm – do not push it in!
WARNING■
Check whether the bonnet has been closed properly. Also make sure that
a vehicle with an opened bonnet does not appear in the instrument cluster
display » page 40 .■
If you notice that the lock is not properly engaged while driving, stop the
vehicle immediately and close the bonnet – risk of accident!
■
Make sure that when closing the bonnet, no body parts are crushed -
there is danger of injury!
195Inspecting and replenishing

WARNING■The use of open flames and light should be avoided.■Smoking and radio triggering activities should be avoided.■
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.
CAUTION
■ Improper handling of the vehicle battery may cause damage.■Ensure that battery acid does not come into contact with the bodywork – risk
of damage to the paintwork.■
If the vehicle has not been driven for more than 3 to 4 weeks, the battery will
discharge. Prevent the battery from discharging by disconnecting the battery's
negative terminal 
or continuously charging the battery with a very low
charging current.
■
Do not place the battery in direct daylight in order to protect the vehicle bat-
tery housing from the effects of ultra-violet light.
■
If the vehicle is frequently used for making short trips, the vehicle battery
will not have time to charge up sufficiently and may discharge.
Note
■ We recommend having all work on the vehicle battery carried out by a spe-
cialist garage.■
You should replace batteries older than 5 years.
Opening the cover
Fig. 209
Polyester cover of vehicle bat-
tery
Read and observe and on page 201 first.
The battery is located in the engine compartment. For some equipment var- iants, it is located underneath a polyester cover » Fig. 209.
›
Fold out the cover on the battery in the direction of the arrow.
The battery cover is installed in reverse order.
Checking the battery electrolyte level
Fig. 210
Vehicle battery: Electrolyte level
indicator
Read and observe and on page 201 first.
On vehicles with a vehicle battery fitted with a colour indicator, the electrolyte
level can be determined by looking at the change in colour of this display.
Air bubbles can influence the colour of the indicator. For this reason carefully
knock on the indicator before carrying out the check.
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
level cannot be checked.
Vehicles with the START STOP system are fitted with a battery control unit for
checking the energy level for recurring engine starts.
We recommend that you have the acid level checked regularly by a specialist
garage, especially in the following cases. ▶ High external temperatures.
▶ Longer day trips.
▶ After each charge. 

202General Maintenance

Do-it-yourself
Emergency equipment, and self-help
Emergency equipment
Introduction
This chapter contains information on the following subjects:
First aid kit and warning triangle
211
reflective vest
211
Fire extinguisher
212
Vehicle tool kit
212
First aid kit and warning triangle
Fig. 213
Placement of the first aid kit and warning triangle - version 1 /
version 2
The following information applies to the first-aid kit and warning triangle from
the ŠKODA Original Accessories.
The storage compartments may possibly be too small for a different first-aid
kit or warning triangle.
First-aid box
The first aid kit can be attached by a strap in the right-hand storage compart- ment in the luggage compartment » Fig. 213.
Warning triangle – version 1
The warning triangle can be attached to the rear wall trim panel with rubber straps » Fig. 213 - 
. Natural gas vehicles have the warning triangle located
under the floor mat in the luggage compartment.
Warning triangle – version 2
The warning triangle can be secured with straps in the right storage compart-
ment in the luggage compartment » Fig. 213 - 
.
Pay attention to the expiration date of the first-aid kit.WARNINGThe first-aid kit and warning triangle must always be secured safely so that
they do not come loose when making an emergency braking or in a vehicle
collision which could cause injuries to occupants.
Note
We recommend using a first-aid box from ŠKODA Original Accessories available
from a ŠKODA Partner.
reflective vest
Fig. 214
Storage compartment for the re-
flective vest
The reflective vest can be stored in brackets under the front seats » Fig. 214.
211Emergency equipment, and self-help

Fire extinguisherFig. 215
Fire extinguisher
The fire extinguisher is attached by two straps in a holder underneath the driv-
er's seat.
Removing/attaching
›
Loosen the two straps by pulling the buckles in the direction of the arrow
» Fig. 215 .
›
Remove the fire extinguisher.
›
To fit in place, insert the fire extinguisher back into the bracket and secure
with straps.
Please read the instructions which are attached to the fire extinguisher.
Pay attention to the expiration date of the fire extinguisher. If the fire extin- guisher is used after the expiration date, its proper function is not assured.
WARNINGThe fire extinguisher must always be secured safely so that they do not
come loose when making an emergency braking or in a vehicle collision
which could cause injuries to occupants.
Note
The fire extinguisher is part of the scope of delivery in certain countries only.Vehicle tool kitFig. 216
Vehicle tool kit
The tool kit is housed in a box in the spare or emergency wheel compartment
or in this storage space.
Depending on the equipment variant, the vehicle tool kit may not contain all
of the following components.
Screwdriver
Key for removing and installing the tail light
Adapter for anti-theft wheel bolts
Towing eye
Clamps for removing the wheel trims
Jack with sign
Crank for the jack
Wheel wrench
Extraction pliers for wheel bolt caps
Breakdown kit
WARNINGThe factory-supplied lifting jack is only intended for your model of vehicle.
Under no circumstances attempt to lift heavier vehicles or other loads. 12345678910212Do-it-yourself

CAUTION■Screw the jack back into the starting position before storing in the box with
the vehicle tool kit.■
Ensure that the vehicle tool kit is safely secured in the luggage compart-
ment.
■
Ensure that the box is always secured with the strap.
Note
The declaration of conformity is included with the jack or the log folder.
Changing a wheel
 Introduction
This chapter contains information on the following subjects:
Preparation
213
Removing/stowing the wheel
213
Full wheel trim
213
Wheel bolts
214
Anti-theft wheel bolts
214
Loosening/tightening wheel bolts
215
Raising the vehicle
215
Remove the wheel / fix
216
Follow-up tasks
216
For your own safety and the safety of your passengers, the following instruc-
tions must be observed before carrying out a wheel change on the road.
Switch on the hazard warning light.
Place the warning triangle at the prescribed distance.
Park the vehicle as far away as possible from flowing traffic.
Choose a location with a flat, solid surface.
Have all the occupants get out. The passengers should not stand on the
road (instead they should remain behind a crash barrier, for instance) while
the wheel is being changed.
Preparation
Before changing the wheel, the following work must be carried out.
›
Switch off the engine.
› For vehicles with
manual transmission select 1st gear.›On vehicles with automatic transmission , place the selector lever in the P
position.›
The parking brake switch.
›
Uncouple any trailers.
Removing/stowing the wheel
Fig. 217
Take out the wheel
The wheel is located in a well under the floor covering in the boot and is fixed
in place with special bolt
B
» Fig. 217 .
Take out the wheel
›
Open the boot lid.
›
Raise the floor covering in the boot » page 103.
›
Loosen the retaining belt and take out the box with the tool kit.
›
Remove locking
A
in the direction of arrow
1
» Fig. 217 .
›
Unscrew nut
B
in the direction of arrow
2
.
›
Remove the wheel.
Store wheel away
›
Place the wheel into the wheel well with the wheel rim pointing downward.
›
Pull the fixing band through the opposite holes in the wheel rim.
›
Screw in nut
B
in the opposite direction to arrow
2
» Fig. 217 .
›
Insert locking
A
in the opposite direction to which arrow
1
is pointing.
›
Replace the box with the tool kit into the emergency or spare wheel and se-
cure it with the tape.
›
Fold back the floor covering in the boot » page 107.
›
Shut the boot lid.
Full wheel trim
Before removing the wheel bolts, remove the full wheel trim. 
213Emergency equipment, and self-help

Raising the vehicle›Insert the crank 7 into the mount on the jack 6» page 212.›
Support the base plate of the jack with its entire surface resting on level
ground and ensure that the lever is positioned vertically to the jacking point
» Fig. 222 .
›
Use the crank to raise the jack until its claw encloses the bar » Fig. 222.
›
Continue to raise the jack until the wheel is just lifted off the ground.
WARNING■
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 unexpect-
edly rolling away.■
Secure the base plate of the lifting jack with suitable means to prevent
possible 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 nec-
essary 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.
■
Only attach the lifting jack to the attachment points provided for this pur-
pose.
■
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.
■
When the vehicle is raised, never start the engine.
CAUTION
It is important to ensure that the jack is correctly attached to the bar of the
lower beam, as otherwise there is a risk of damage to the vehicle.
Remove the wheel / fix
When changing a wheel, the following instructions must be followed.
›
Remove the full wheel trim or the caps of the wheel bolts.
›
First of all slacken the anti-theft wheel bolt and then the other wheel bolts.
›
Jack up the vehicle until the wheel that needs changing is clear of the
ground.
›
Unscrew the wheel bolts and place them on a clean surface (cloth, paper,
etc.).
›
Remove the wheel carefully.
›
Attach the wheel and slightly screw on the wheel bolts.
›
Lower the vehicle.
› Tighten the wheel bolts opposite each other using the wheel wrench (alter-
nating crosswise). Tighten the anti-theft wheel bolt last.›
Replace the wheel trim and the caps.
When fitting unidirectional tyres, ensure that the direction of rotation is cor-
rect » page 207 .
All bolts must be clean and must turn easily.
If it is established when changing a wheel that the wheel bolts are corroded and difficult to move, then these must be replaced.
Under no circumstances grease or oil the wheel bolts!
WARNINGUndo the wheel bolts only a little (about one turn) as long as the vehicle
has not yet been jacked up. Otherwise the wheel could become loose and
fall off.
Follow-up tasks
After changing the wheel, the following work must be carried out.
›
Stow the replaced wheel in the wheel well and secure it with a special screw.
›
Stow the tool kit in the space provided and secure using the band.
›
Check the tyre pressure on the installed wheel as soon as possible.
›
Have the tightening torque of the wheel bolts checked with a torque wrench
as soon as possible.
After changing the wheel, the tyre pressure must be adjusted. In vehicles with
tyre pressure monitoring, save tyre pressure values » page 165.
Replace the damaged wheel or consult a specialist garage about repair op-
tions.
The prescribed tightening torque of the wheel bolts is 120 Nm.
WARNING■
If the wheel bolts are tightened to a too low tightening torque, the rim
can come loose when the car is moving. A tightening torque which is too
high can damage the bolts and threads and this can result in permanent
deformation of the contact surfaces on the rim.■
Drive cautiously and only at a moderate speed until the tightening torque
has been checked.
216Do-it-yourself

›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