2015 SKODA SUPERB maintenance

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 put into the tank, 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 biofuel RME, therefore this fuel must
not be refuelled and driven. 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.
AdBlue ®
and its refilling
 Introduction
This chapter contains information on the following subjects:
Tank and level check
205
AdBlue ®
replenish
205
In order to reduce pollutant emissions from vehicles with diesel engines and
the SCR catalyst, a urea - AdBlue ®
solution is injected into the exhaust system.
For vehicles with the AdBlue ®
injection system there is a note on the inside of
the fuel filler flap referring to the location of the AdBlue ®
filler neck and the
AdBlue ®
- minimum replenishment amount, that is required by a low AdBlue ®
-
level.
AdBlue ®
standard
Only use AdBlue ®
that corresponds to the standard ISO 22241-1.
AdBlue ®
- consumption
The AdBlue ®
consumption amounts to around 0.8 - 1.2 l / 1000 km.
The AdBlue ®
consumption depends on driving style, the operating tempera-
ture of the system and on the weather conditions.
For information on storing AdBlue ®
▶ Keep AdBlue ®
only in original sealed containers and in a safe place.
▶ Keep the container out of the reach of children.
▶ Do not expose the containers to direct sunlight or temperatures above 30° C.
Instructions for cleaning ▶ If any painted vehicle parts, clothing and carpets are splashed with AdBlue ®
wash the affected area with a damp cloth and plenty of cold water.
▶ Remove any dried AdBlue ®
with warm water and a sponge.
Fault display
In the event of a system fault, the warning light  is displayed in the instru-
ment cluster as well as the relevant notification » page 39.WARNING■
AdBlue ®
is an irritating and corrosive solution that can injure the skin,
eyes and respiratory system!■
In the event of eye or skin contact with AdBlue ®
, immediately wash the
affected area for at least 15 minutes with water and seek medical attention
immediately.
■
If AdBlue ®
is swallowed rinse your mouth with water for at least 15 mi-
nutes and consult a doctor immediately.
CAUTION
■ Never carry containers with AdBlue ®
permanently in the vehicle - there is a
risk of damage to the vehicle interior.■
Never add water or other additives AdBlue ®
. 
204General Maintenance

After refilling›After refilling AdBlue®
put the cap on the fuel filler neck and turn in the oppo-
site direction of the arrow 3
until it engages.
›
Close the fuel filler flap until it clicks into place.
Before driving
›
After filling AdBlue ®
only switch on the ignition and leave it on for at least 30
s, so that the refilling can be recognized by the system.
Only then start the engine.
CAUTION
The AdBlue ®
- tank is full when no AdBlue ®
flows from the refill bottle or as
soon as the correctly operated pump cuts out for the first time. Do not contin-
ue refilling AdBlue ®
.
Note
The working life of the AdBlue ®
solution is 4 years. Thereafter the solution
must be replaced by a specialist garage.
Engine compartment
 Introduction
This chapter contains information on the following subjects:
Opening and closing the bonnet
207
Engine compartment overview
208
Radiator fan
208
Windscreen washer system
208WARNINGInjuries or scolding or risks of accident or fire may occur when working in
the engine compartment. For this reason, it is essential to comply with the
warning instructions outlined below and with the general applicable safety
rules. 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.■
The parking brake switch.
WARNING (Continued)■ For vehicles with manual transmission the lever into the neutral position.■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 escaping from the
engine compartment – risk of scalding! Wait until no more steam or coolant
is escaping.
WARNINGInformation for working in the engine room■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 to life! Always remove any jewellery,
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. 
206General Maintenance

Engine compartment overviewFig. 228
Principle sketch: Engine compartment
Read and observe
and on page 206 first.
Layout of the engine compartment » Fig. 228
Coolant expansion reservoir
211
Engine oil dipstick
210
Engine oil filler opening
210
Brake fluid reservoir
212
Battery (under a cover)
213
Windscreen washer fluid reservoir
208
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 206 first.
The radiator fan is powered by an electric motor. Operation is controlled ac-
cording to the temperature of the coolant.
WARNINGAfter switching off the ignition, the fan may intermittently continue to op-
erate for approx. 10 minutes.ABCDEFWindscreen washer systemFig. 229
Windscreen washer fluid reservoir
Read and observe
and on page 206 first.
Depending on the engine the windshield washer fluid container
A
or
B
is lo-
cated in the engine compartment of the vehicle » Fig. 229.
The cleaning fluid is provided for the cleaning of the front and rear window as
well as the headlight.
The capacity of the reservoir
A
is about 3.1 litres or about 4.7 litres on vehicles
that have a headlight cleaning system.
The contents of the container
B
is approximately 3.7 litres.
Clear water is not sufficient to intensively clean the windscreen and head-
lights. We recommend using clean water together with a screen cleaner from
the range of ŠKODA Original Accessories (with antifreeze in winter), which will
remove any 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. 
208General Maintenance

CAUTION■In an emergency, another engine oil to be refilled. To prevent damage to the
engine, a maximum of 0.5 litres only of the following engine oils may be used:
■ For petrol engine models: ACEA A3/ACEA B4 or API SN, (API SM);
■ For diesel engine models: ACEA C3 or API CJ-4.
Checking the oil level
Fig. 230
Principle sketch: Dipstick
Read and observe
and on page 209 first.
The dipstick indicates the engine oil level .
Dipstick » Fig. 230
The oil level must be within this range.
The oil can be checked and topped up, if the following conditions are satisfied. The vehicle is standing on a horizontal surface.
The engine operating temperature is reached.
The engine is turned off.
The bonnet is open.
Checking the level
›
Wait a few minutes until the engine oil flows back into the oil trough.
›
Pull out the dipstick.
›
Wipe the dipstick with a clean cloth and insert it again to the stop.
›
Pull the dipstick out again and check the oil level.
›
Re-insert the dipstick.
AThe engine consumes a little oil. The oil consumption may be as much as 0.5
l/1 000 km depending on your style of driving and the conditions under which
you operate your vehicle. Consumption may be slightly higher than this during
the first 5 000 km.
The oil level must be checked at regular intervals.
If the oil level is too low, a warning light lights up in the instrument cluster dis-
play 
together with a message » page 38. Check the oil level using the dip-
stick as soon as possible. Add oil accordingly.
CAUTION
■ The oil level must never be above the range A » Fig. 230 - risk of damage to
the motor as well as the exhaust system.■
Do not continue if for some reason it is not possible to fill with engine oil 
under the current circumstances! Switch off the engine and seek assistance
from a specialist garage.
■
If the oil level is above the range
A
, 
do not continue to drive! Switch off
the engine and seek assistance from a specialist garage.
Replenishing
Read and observe
and on page 209 first.
›
Unscrew the cap of the engine oil filler opening » Fig. 228 on page 208 .
›
Replenish the oil in portions of 0.5 litres in accordance with the correct speci-
fications » page 209 .
›
Check the oil level » page 210.
›
Screw the lid of the engine oil filler closed carefully.
›
Pull the dipstick out as far as the stop.
Coolant
Introduction
This chapter contains information on the following subjects:
Checking the coolant level
211
Replenishing
212
The coolant provides cooling for the motor.
It consists of water and coolant additive with additives that protect the cooling
system against corrosion and prevents furring. 
210General Maintenance

Checking the level›Check the coolant level in the coolant expansion tank » Fig. 231.
If the engine is warm, the test result may be inaccurate. The level can also be
above the mark A
» Fig. 231 .
If the oil level is too low, a warning light lights up in the instrument cluster dis-
play 
together with a message » page 38. We still recommend inspecting the
coolant level directly at the reservoir 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 211 first.
The coolant expansion tank must always contain a small amount of coolant» page 211, in section Introduction .
›
Place a cloth over the cap of the coolant expansion tank and unscrew the
cap carefully .
›
Replenish the coolant.
›
Turn the cap until it clicks into place.
Do not use an alternative additive if the specified coolant is not available. In
this case, use just water and have the correct mixing ratio of water and cool-
ant additive restored by a specialist garage as soon as possible.
Only top up with new coolant.
Brake fluid
 Introduction
This chapter contains information on the following subjects:
Checking the brake fluid level
212
Specification
213
The brake fluid reservoir is located in the engine compartment » Fig. 232 on
page 212 .
WARNING■
The engine compartment of your car is a hazardous area. The following
warning instructions must be followed at all times when working in the en-
gine compartment » page 206.■
Do not use used brake fluid - the function of the brake system may be im-
paired – risk of accident!
CAUTION
■ Do not continue your journey if the fluid level has dropped below the “MIN”
marking » Fig. 232 on page 212 ,  - there is a risk of an accident! Seek help
from a specialist garage.■
Brake fluid damages the paintwork of the vehicle.
Note
■ The brake fluid is changed as part of a compulsory inspection service.■We recommend using oils from the ŠKODA Original Accessories range.
Checking the brake fluid level
Fig. 232
Brake fluid reservoir
Read and observe and on page 212 first.
The fluid can be checked if the following conditions are met.
The vehicle is standing on a horizontal surface.
The engine is turned off.
The bonnet is open.
Checking the level
›
Check the level of brake fluid in the reservoir » Fig. 232.
The level must be between the “MIN” and “MAX” markings. 
212General Maintenance

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
chemical 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. 233
Polyester cover of vehicle bat-
tery
Read and observe and on page 213 first.
The battery is located in the engine compartment. For some equipment var- iants, it is located underneath a polyester cover » Fig. 233.
›
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. 234
Vehicle battery: Electrolyte level
indicator
Read and observe and on page 213 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 the 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. 

214General Maintenance

›First, disconnect the negative terminal
 first, then the positive  terminal
of the battery.
Connecting›
First, connect the positive 
first, then the negative 
battery terminal.
After disconnecting and re-connecting the vehicle battery, the following func-
tions or devices are partially or completely inoperative.
Function / deviceOperating measureElectric window lifters» page 64Panorama sliding/tilting roof» page 65Sun screen» page 66Time setting» 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 213 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 necessary, large convenience consumers such as seat heaters and
rear window heaters have their power limited or are shut off completely in
the event of an emergency.
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 that are supplied via a 12-V power socket can cause the vehicle
battery to discharge when the ignition is switched off.
Note
Driving comfort is not impaired by consumers being deactivated. The driver is
often not aware of it having taken place.216General Maintenance

Tyre diameter in inches
These details are intended only as information for the specified tyre pres-
sure and does not list approved tyre sizes for your vehicle.
The approved tyre sizes for your vehicle are listed in the vehicle's technical
documentation (the so called COC document) and this also states the dec-
laration of conformity.
The approved tyre diameter for your vehicle is also provided with the vehi-
cle data » page 246 .
Tyre pressure value on the front axle
Tyre pressure value on the rear axle
Check tyre pressures
Check the tyre pressure, including that of the spare wheel, at least once a
month and also before setting off on a long journey.
Always check the inflation pressure when the tyres are cold. Do not reduce the
higher pressure of warm tyres.
In vehicles with tyre pressure monitoring, tyre pressure values must be stored
every time the tyre pressure changes » page 183.WARNING■
Having the correct tyre inflation pressure is always the driver's responsi-
bility.■
Too low or too high inflation pressure impairs handling.
■
If the inflation pressure is too low, the tyre will have to overcome a higher
rolling resistance. This will cause a significant increase in the temperature
of the tyre, especially at higher speeds. This can result in tread separation
and a tyre blow-out.
■
In the event of very fast tyre inflation pressure loss, such as a sudden tyre
failure, an attempt should be made to bring the vehicle carefully to a stop
without sudden steering movements and without any hard braking.
For the sake of the environment
Tyres that are insufficiently inflated increase your fuel consumption.
Note
The declaration of conformity (COC document), can be obtained from a ŠKODA 1)
partner.EFGTyre wear
Read and observe
on page 217 first.
Tyre wear depends on the pressure, driving style, and other circumstances.
Attention to the following factors can reduce tyre wear.
Driving style
Fast cornering, sharp acceleration and braking increase the wear of your tyres.
Wheel balance
The wheels of a new vehicle are balanced. When driving, however, there are a
range of factors that may result in an imbalance. This may become apparent by
a “vibration” in the steering. If this is the case, have the wheels checked by a
specialist garage.
Have the wheels likewise rebalanced after replacing the tyres.
Setting the vehicle geometry
Incorrect wheel alignment at the front or rear leads to excess wear on the
tyres and impairs driving safety. With a distinct tyre wear pattern, we recom-
mend that you check the setting of the vehicle geometry in a specialist work-
shop.
WARNING■ An incorrect wheel alignment at the front or rear impairs handling.■Unusual vibrations or pulling of the vehicle to one side could be a sign of
tyre damage. If there is any doubt that a wheel is damaged, immediately re-
duce your speed and stop! If no external tyre damage is evident, drive slow-
ly and carefully to the nearest specialist garage to have the vehicle
checked.1)
Only valid for some countries and some models.
218General Maintenance