2015 SKODA OCTAVIA battery

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

A slight drop in the fluid level results when driving due to normal wear-and-
tear and automatic adjustment of the brake pads.
There may be an indication of a leak in the brake system, however, if the fluid
level drops significantly within a short time or if it drops below the “MIN” mark-
ing.
Too low brake fluid level is indicated by the warning light 
being shown on
the display of the instrument cluster as well as the corresponding message
» page 32 .
Specification
Read and observe
and on page 200 first.
To ensure the optimal functioning of the braking system, only use a brake fluid
meeting the standard VW 501 14 (this standard meets the requirements of
FMVSS 116 DOT4).
Note
We recommend using brake fluids from the ŠKODA Original Accessories range.
Vehicle battery
 Introduction
This chapter contains information on the following subjects:
Opening the cover
202
Checking the battery electrolyte level
202
Charging
203
Replacing
203
Disconnecting and reconnecting
203
Automatic load deactivation
204
The vehicle battery represents a power source for the motor to start and for
the supply of electrical consumers in the car.
Warning symbols on the vehicle batterySymbolMeaningAlways wear eye protection!Battery acid is severely caustic. Always wear gloves and eye pro-
tection!Keep fire, sparks, open flames and lit cigarettes well clear of the
vehicle battery!When charging the vehicle battery, a highly explosive gas mixture
is produced!Keep children away from the vehicle battery!WARNINGThere is a risk of injuries, poisoning, chemical burns, explosions or fire
when carrying out any work on the battery and on the electrical system.
The general applicable safety rules and the following warnings must be ob-
served without exception.■
Keep the vehicle battery away from people who are not completely inde-
pendent, especially children.
■
Do not tilt the battery otherwise battery electrolyte may flow out of the
battery vent openings.
■
Protect your eyes by safety glasses or a face shield – risk of blindness!
■
Always wear protective gloves, eye and skin protection when handling
the vehicle battery.
■
The battery acid is strongly corrosive and must, therefore, be handled
with the greatest of care.
■
Corrosive fumes in the air irritate the air passages and lead to conjunctivi-
tis and inflammation of the air passages in the lungs.
■
Battery acid corrodes dental enamel and creates deep wounds after con-
tact with the skin which take a long time to heal.
■
If any battery electrolyte comes into contact with your eyes, rinse the rel-
evant eye immediately with clear water for several minutes - consult a doc-
tor immediately!
■
Splashes of acid on your skin or clothes should be neutralised as soon as
possible using soap suds and then rinsed with plenty of water.
■
If you swallow battery acid, seek immediate medical assistance! 
201Inspecting 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

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

Fig. 225
Engine earth: START-STOP sys-
tem
Read and observe on page 219 first.
The starting process using the battery of another vehicle requires the use of
jumper cables.
The jump-start cables must be attached in the following sequence.
›
Attach clamp
1
to the positive terminal of the discharged battery
A
» Fig. 224 .
›
Attach clamp
2
to the positive terminal of the battery supplying power
B
.
›
Attach clamp
3
to the negative terminal of the battery supplying power
B
.
›
Attach the clamp
4
to a solid metal part which is connected firmly to the en-
gine block or to the engine block itself.
On vehicles with the START-STOP system » Fig. 225, connect the jump-start
cable to the engine's earthing point.
Starting engine
›
Start the engine on the vehicle providing the power and allow it to idle.
›
Start the engine of the vehicle with the discharged battery.
›
If the engine does not start, terminate the attempt to start the engine after
10 seconds and wait for 30 seconds before repeating the process.
›
Remove the jump-start cables exactly in the reverse sequence as for attach-
ing.
Both batteries must have a rated voltage of 12 V. The capacity (Ah) of the bat-
tery supplying the power must not be significantly less than the capacity of
the discharged battery in your vehicle.
Jump-start cables
Only use jump-start cables which have an adequately large cross-section and
insulated terminal clamps. Observe the instructions of the jumper lead manu-
facturer.
Positive cable – colour coding in the majority of cases is red.
Negative cable – colour coding in the majority of cases is black.WARNING■
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 star-
ted.■
The non-insulated parts of the terminal clamps must never touch each
other – risk of short circuit!
■
The jump-start cable connected to the positive terminal of the battery
must not come into contact with electrically conducting parts of the vehicle
– risk of short circuit!
■
Route the jump-start cables so that they cannot be caught by any rotat-
ing parts in the engine compartment.
Towing the vehicle
 Introduction
Fig. 226
Braided tow ropes/spiral tow rope
This chapter contains information on the following subjects:
Front towing eye
221
Rear towing eye
222
Vehicles with a tow hitch
222
A braided tow rope must be used for towing » Fig. 226- 
.
When towing, the following guidelines must be observed.
Vehicles with manual transmission may be towed in with a tow bar or a tow
rope or with the front or rear wheels raised. 
220Do-it-yourself

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