2014 SKODA OCTAVIA AUX

Inspecting and replenishing
Fuel
Introduction
This chapter contains information on the following subjects:
Petrol and diesel refuelling
188
Lead-free petrol
189
Diesel fuel
190
Refuelling with CNG (compressed natural gas)
191
CNG
192
The correct fuels for your vehicle are specified on the inside of the fuel filler
flap » Fig. 180 on page 188 .
WARNING■
Observe the local regulations regarding fuel handling.■The operating instructions of the refuelling system must always be fol-
lowed.■
Do not smoke when refuelling and do not use a mobile phone.
■
The fuel and fuel vapours are explosive - risk to life!
CAUTION
■ Never drive until the fuel tank is completely empty! The irregular supply of
fuel can cause misfiring, which can result in damage to parts of the engine and
the exhaust system.■
Immediately remove any fuel that has spilled onto the vehicle's paintwork –
risk of paint damage!
■
If the vehicle was not purchased in the country where it was intended to be
operated, you should check whether the fuel specified by the manufacturer is
offered in the country where the vehicle will be operated. You should also per-
haps check whether the manufacturer has recommended a different fuel for
operation of the vehicle in the corresponding country. If no prescribed fuel is
available, then you must check whether it is permitted by the manufacturer to
operate the vehicle with another fuel type.
Petrol and diesel refuellingFig. 180
Open fuel filler flap/unscrew tank cap/place the tank cap on the
fuel filler flap
Fig. 181
Fuel filler tube on vehicles with
diesel engines
Read and observe and on page 188 first.
Refuelling can be done if the following conditions are met.
The vehicle is unlocked.
The engine and the ignition are switched off simultaneously.
The auxiliary heating and ventilation is switched off » page 122.
›
Press on the fuel filler flap in the direction of arrow
1
» Fig. 180.
›
Open the flap in the direction of arrow
2
.
›
Unscrew the tank cap in the direction of arrow
3
.
›
Remove the tank cap and place in the recess on top of the fuel filler flap in
the direction of arrow
4
.
›
Insert the pump nozzle into the fuel filler neck as far as it will go, and refuel.
The fuel tank is full just as soon as the pump nozzle switches off for the first
time »
. 
188General Maintenance

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. 182
Natural gas filler tubes
Read and observe
and on page 188 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 122.
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. 182 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. 182 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
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. 
191Inspecting and replenishing

WARNING (Continued)■If coolant is swallowed, consult a doctor immediately.■Never spill operating fluids over the hot engine - risk of fire.
CAUTION
■If for some reason it is not possible to top up the coolant under the current
circumstances,  do not continue driving! Switch off the engine and seek as-
sistance from a specialist garage.■
If the expansion tank is empty, do not top up with coolant. The system could
aerate - risk of engine damage, 
do not continue driving! Switch off the en-
gine and seek assistance from a specialist garage.
■
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 protec-
tion and coolant effectiveness.
■
A coolant additive that does not comply with the correct specification can
significantly reduce the corrosion protection of the cooling system.
■
Any faults resulting from corrosion may cause a loss of coolant and can con-
sequently result in major engine damage!
■
Do not fill the coolant above the mark
A
» Fig. 188 on page 198 .
■
If an error occurs, leading to the engine overheating, the help of a professio-
nal garage is to be sought - there is a risk of serious engine damage occurring.
■
Additional headlights and other attached components in front of the air inlet
impair the cooling efficiency of the coolant.
■
Never cover the radiator - there is a risk of the engine overheating.
Note
On vehicles that are fitted with an auxiliary heater (auxiliary heating and venti-
lation), the coolant capacity is approx. 1 l larger.
Checking the coolant level
Fig. 188
Coolant expansion reservoir
Read and observe and on page 197 first.
The coolant expansion bottle is located in the engine compartment.
Coolant expansion tank » Fig. 188
Mark for the maximum permissible coolant level
Mark for the lowest permissible coolant level
The coolant level should be kept between the marks
A
and
B
.
The coolant can be checked and topped up, if the following conditions are sat-
isfied.
The vehicle is standing on a horizontal surface.
The engine is turned off.
The engine is not heated.
The bonnet is open.
Checking the level
›
Check the coolant level in the coolant expansion tank » Fig. 188.
If the engine is warm, the test result may be inaccurate. The level can also be
above the mark
A
» Fig. 188 .
In the event of an insufficient coolant level, the control symbol  is displayed
in the instrument cluster as well as the relevant notification » page 41. We still
recommend inspecting the coolant level directly at the expansion tank from
time to time.
Loss of coolant
A loss of coolant is first and foremost an indication of a leak in the cooling sys-
tem. Do not merely top up the coolant. Have the cooling system checked by a
specialist garage.
Replenishing
Read and observe
and on page 197 first.
The coolant expansion tank must always contain a small amount of cool-
ant » page 198, in section Introduction .
›
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. 

AB198General Maintenance

Note■The battery acid level is also checked regularly by a specialist garage as part
of the inspection service.■
For technical reasons, on vehicles with the description “AGM”, the electrolyte
level cannot be checked.
Charging
Read and observe
and on page 200 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 220,
Jump-starting using the battery from another vehicle .
Replacing
Read and observe
and on page 200 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 having the battery replaced by a specialist garage, where the
new vehicle battery will be installed properly and the original battery will be
disposed of in accordance with national regulations.
Disconnecting and reconnecting
Read and observe
and on page 200 first.
Disconnecting
›
Switch off the ignition. 
202General Maintenance

Towing the vehicle using the towing device is a viable alternative solution to
using the towing eye.
If the towing device is removed completely, it must be replaced with the
standard reinforcement of the rear bumper which is part of the mount for the
towing eye.
If this procedure is not observed, the vehicle may not meet the national legal
provisions.
CAUTION
The detachable ball rod and/or the vehicle can be damaged if an unsuitable
tow bar is used.
Note
The detachable ball rod must always be in the vehicle so that it can be used for
towing, if necessary.
Remote control
 Introduction
This chapter contains information on the following subjects:
Replacing the battery in the remote control key
224
Synchronising the remote control
224
replace battery in the remote control the auxiliary heating (auxiliary
heating)
225
CAUTION
■ The replacement battery must have the same specification as the original
battery.■
We recommend having faulty rechargeable batteries replaced by a ŠKODA
service partner.
■
Pay attention to the correct polarity when changing the battery.
For the sake of the environment
Dispose of the used battery in accordance with national legal provisions.Replacing the battery in the remote control keyFig. 211
Remove cover/take out battery
Read and observe
on page 224 first.
The battery change is carried out as follows.
›
Flip out the key.
›
Press off the battery cover
A
» Fig. 211 with your thumb or using a flat
screwdriver in the region of the arrows
B
.
›
Open the battery in the direction of the arrow
1
.
›
Remove the discharged battery in the direction of arrow
2.›
Insert the new battery.
›
Insert the battery cover
A
and press it down until it clicks audibly into place.
The key has to be synchronised if the vehicle cannot be unlocked or locked
with the remote control key after replacing the battery » page 224.
Note
If a key has an affixed decorative cover, this will be destroyed when the bat-
tery is replaced. A replacement cover can be purchased from a ŠKODA Partner.
Synchronising the remote control
Read and observe
on page 224 first.
If the vehicle does not unlock when pressing the remote control, the key may
not be synchronised. This can occur when the buttons on the remote control
key are actuated a number of times outside of the operative range of the
equipment or the battery in the remote control key has been replaced.
Synchronise the key as follows. 
224Do-it-yourself

›Press any button on the remote control key.›Unlock the door with the key via the lock cylinder within 1 minute of pressing
the button.
replace battery in the remote control the auxiliary heating
(auxiliary heating)
Fig. 212
Radio remote control: Battery
cover
Read and observe on page 224 first.
The battery is located under a cover on the back of the radio remote con-
trol » Fig. 212 .
›
Insert a flat, blunt object, such as a coin, into the gap of the battery cover.
›
Turn the cover against the direction of the arrow up to the mark to open the
cover.
›
Replace the battery.
›
Return the battery cover.
›
Turn the cover in the direction of the arrow up to the initial marking, engage.
Emergency unlocking/locking
 Introduction
This chapter contains information on the following subjects:
Unlocking/locking the driver's door
225
Locking the door without a locking cylinder
226
Unlocking the tailgate
226
Selector lever-emergency unlocking
226Unlocking/locking the driver's doorFig. 213
Handle on the driver's door: covered locking cylinder/locking cyl-
inder with key
The driver's door can be unlocked or locked in an emergency.
›
Pull on the door handle and hold.
›
Insert the vehicle key into the slot on the bottom of the cover » Fig. 213.
›
Open the cover in the direction of the arrow.
›
Release the door handle.
›
For vehicles with LHD, insert the remote control key into the lock cylinder
with the buttons facing upwards and unlock or lock the vehicle.
›
For vehicles with RHD, insert the remote control key into the lock cylinder
with the buttons facing downwards and unlock or lock the vehicle.
›
Pull on the door handle and hold.
›
Replace the cap in its original position.
CAUTION
Make sure you do not damage the paint when performing an emergency lock-
ing/unlocking.225Emergency equipment, and self-help

›Fold back the storage compartment by pressing into the secured position in
the dash panel in the direction of the arrow 2.›
Close the storage compartment.
Fuses in the dash panel – RHD
Fig. 220
Storage compartment on the front passenger's side: RHD
Read and observe
and on page 228 first.
On right-hand drive vehicles, the fuse box is located on the front passenger's
side behind the storage compartment in the left-hand section of the dash
panel.
Removing the storage compartment and replacing the fuse
›
Insert a screwdriver under the side cover » Fig. 220.
›
Unlock the cover in the direction of the arrow
1
.
›
Push the cover out in the direction of the arrow
2
.
›
Open the storage compartment.
›
Insert a screwdriver from the side into the dash panel in the direction of ar-
row
3
.
›
Use the screwdriver to unlock the brake rod
A
of the storage compartment
in the direction of arrow
4
.
›
Remove the storage compartment in the direction of the arrow
5
.
›
Remove the plastic clip under the cover of the fuse box in the engine
room » Fig. 223 on page 231 .
›
Place the clip onto the respective fuse and pull the fuse out.
›
Insert a new fuse.
›
Replace the bracket at the original position.
Installing the storage compartment›Move the stop buffer B of the storage compartment behind the bracketsC
» Fig. 220 .
›
Push in the storage compartment in the opposite direction of the arrow
5
.
›
Insert the brake rod and lock it against the arrow
4
with a screwdriver.
›
Push in the side cover against the direction of the arrow
2
.
›
Press the side cover fully against the direction of the arrow
1
.
›
Close the storage compartment.
Assignment of the fuses in the dash panel
Fig. 221
Fuses
Read and observe and on page 228 first.
No.Consumer1Not assigned2Not assigned3Not assigned4Not assigned5Data bus control unit6Alarm sensor
7
Control unit for the air conditioning system, heating, receiver for re-
mote control for the auxiliary heating, selector lever for the auto-
matic gearbox, relay for the rear window heater, replay for the
windscreen heater8Light switch, rain sensor, diagnostic socket9Haldex clutch10Touchscreen11Heated rear seats 229Fuses and light bulbs

Fig. 223
Cover for the fuse box in the en-
gine compartment: Plastic clip
for fuses
Read and observe and on page 228 first.
Replacing fuses
›
Press together the interlocks of the cover simultaneously in the direction of
the arrow
1
» Fig. 222 .
›
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 228 first.
No.Consumer1Control unit for ESC, ABS2Control unit for ESC, ABS3Engine control unit4Radiator fan, oil temperature sensor, air volume sensor, control
valve for fuel pressure, relay for electrical auxiliary heating5Coil of the relay for the ignition system, coil of the CNG relay6Brake sensor7Coolant pump, radiator shutter8Lambda probeNo.Consumer9Ignition, control unit for preheating system10Control unit for fuel pump, ignition11Electrical auxiliary heating system12Electrical auxiliary heating system13Control unit for automatic gearbox14Not assigned15Horn16Ignition, fuel pump17Control unit for ABS, ESC, engine control unit18Data bus control unit19Windscreen wipers20Alarm21Windscreen heater - left22Engine control unit23Starter24Electrical auxiliary heating system31Not assigned32Not assigned33Not assigned34Windscreen heater - right35Not assigned36Not assigned37Control unit for auxiliary heating38Not assigned
Bulbs
 Introduction
This chapter contains information on the following subjects:
Bulb arrangement in the headlights
232
Replacing the low beam bulb
233

231Fuses and light bulbs