engine SKODA SUPERB 2007 1.G / (B5/3U) Repair Manual

Inspecting and Replenishing191
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
system with water and as soon as possible arrange adjustment to correct the mixing
ratio of water and coolant additive again by a specialist garage.
Only use fresh coolant for topping up the system.
Do not fill up over the “MAX” marking! Exce
ss coolant which is heated up is forced
out of the cooling system through the pressu re relief valve in the cap of the coolant
compensation bottle.
Wait until the engine has cooled down for a system which has suffered a major loss
of coolant before pouring in coolant. Th is is necessary to avoid engine damage.
WARNING
•The cooling system is pressurized! Do not open the cap of the coolant
expansion bottle if the engine is still hot - risk of scalding!
•The coolant additive and thus all of the coolant is harmful to your health.
Avoid contact with the coolant. Coolant vapours are also harmful to the
health. It is important, therefore, to always safely store any coolant additive
in its original container out of the reach of children - risk of poisoning!
•If any splashes of coolant get into yo ur eyes, rinse out your eyes immedi-
ately with clear water and contact a doctor as soon as possible.
•You should also consult a doctor without delay if you have inadvertently
swallowed coolant.
Caution
Do not continue your journey if for some reason it is not possible under the
conditions prevailing to top up with coolant. Switch the engine off and obtain
professional assistance from a specialist garage, otherwise it could lead to severe
engine damage.
For the sake of the environment
Do not re-use coolant if it is necessary to drain the coolant in the system. It should
be collected and disposed of in comp liance with environmental protection
regulations.
Radiator fan
The radiator fan may switch on suddenly.
The radiator fan is driven by an electr ic motor and controlled by a thermostat
according to the coolant temperature.
The radiator fan may conti nue running for up to 10 mi nutes after the engine has
been switched off - even if the ignition is also off. It may also switch on suddenly
after a certain time, if
•the coolant temperature has risen because of an accumulation of heat or
•the warm engine compartmen t is heated up additionally by strong sunlight.
WARNING
You must therefore be aware when working in the engine compartment that
the fan may switch on suddenly - risk of injury!
Brake fluid
Inspecting the brake fluid level
You can also see the location of the brake fluid reservoir in the engine
compartment from the general view of the engine compartment
B1Z-0042HB1Z-0042H
Fig. 177 Engine
compartment: Brake
fluid reservoir
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Inspecting and Replenishing
192
⇒page 186. The brake fluid reservoir on right-hand steering models is
positioned on the other side of the engine compartment.
– Switch the engine off.
– Open the bonnet ⇒ in “Working in the engine compartment” on
page 185.
– Pull off the rubber seal ⇒page 191, fig. 177 partially away and lift
the cover slightly.
– Inspect the brake fluid level at the reservoir . The level must be
between the “MIN” and “MAX” markings. The markings are indicated
on the side of the reservoir.
A slight drop in the fluid level results when driving due to normal wear-and-tear
and automatic adjustment of the br ake pads, and is perfectly normal.
There may be an indication of a leak in th e brake system, however, if the fluid level
drops significantly within a short time or if it drops below the “MIN” marking. A situ-
ation where the brake fluid level is too low is indicated by the warning light

lighting up in the instrument cluster ⇒page 29. In this case stop the car immedi-
ately and do not drive any further! Cont act a Škoda Dealer to obtain profes-
sional assistance.
WARNING
•Read and observe the warning notes ⇒page 185, “Working in the engine
compartment” before working in the engine compartment.
•If the fluid level has dropped below the MIN marking, do not drive any
further - risk of accident! Contact a Škoda dealer to obtain professional
assistance.
Replacing brake fluid
Brake fluid absorbs moisture. This causes the fluid to absorb moisture from the
surrounding air over a period of time. Excessive water in the brake fluid may be the
cause of corrosion in the brake system. Th e water content also lowers the boiling point of the brake fluid.
This is why brake fluid mu st be replaced every two
years.
One may only use new genuine brake fluid from Škoda Auto a.s. The specification
for the brake fluid is “FMVSS 116 DOT 4”.
We recommend that you have the brake fluid replaced by a Škoda Service Partner
as part of an Inspection Service.
WARNING
•Using old brake fluid can result in seve re stress on the brakes because of
the formation of vapour bubbles in th e brake system. This greatly impairs
the braking efficiency and thus al so the safety of your vehicle.
•Brake fluid is toxic! It must therefore be kept safely in closed original
containers and well away from children and unauthorized persons.
Caution
Brake fluid damages the paintwork of the vehicle.
For the sake of the environment
In view of the problems involved with prop er disposal of brake fluid, the special
tools and the professional knowledge required, you should have the brake fluid
replaced by a Škoda Service Partner.
AB
AC
AA
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Inspecting and Replenishing193
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Battery
Working on the battery
Particular care is required when carrying out any work on the
battery!
The battery is located in the engine compartment in the plenum chamber
below a cover.
Taking off cover
– Press the cover in direction of arrow ⇒fig. 178 .
There is a risk of injuries, scalding, acci dents and burns when carrying out any work
on the battery and on the electrical system. For this reason, it is essential to comply
with the warning instructions ⇒ stated below and with the general applicable
rules of safety.
WARNING
•The battery acid is strongly corros ive and must, therefore, be handled
with the greatest of care. Always we ar protective gloves, eye and skin
protection when handling batteries. Corrosive fumes in the air irritate the
air passages and lead to conjunctivitis and inflammation of the air passages in the lungs. Battery acid corrodes de
ntal enamel and creates deep wounds
after contact with the skin which take a long time to heal. Repeated contact
with diluted acids causes skin diseases (inflammations, ulcers, slin cracks).
Acids coming into contact with water are diluted accompanied by significant
development of heat.
•Do not tilt the battery otherwise battery electrolyte may flow out of the
battery vent openings. Protect the eyes with safety glasses or a shield! There
is the danger of suffering blindness! If any battery electrolyte gets into your
eye, rinse out your eye immediately with clear water for several minutes.
Contact a doctor without delay.
•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. Contact a
doctor immediately if you swallow battery electrolyte.
•Keep batteries out of the reach of children.
•Hydrogen is released when you char ge a battery and a highly explosive
gas mixture is produced. An explosion can be caused through sparkling over
during unclamping or loosening of the cable plug while the ignition is on.
•Bridging of the poles will create a short circuit (e.g. through metal
objects, cables). Possible consequences of a short circuit: Melting of lead
struts, explosion and burning of the battery, jets of acid spurting out.
•It is prohibited to work with a naked flame and light, to smoke or to carry
out any activities which produce sparks. Avoid creating sparks when
working with cables and electrical device s. Strong sparking represents a risk
of injury.
•Before carrying out any work on the electrical system, switch off the
engine, the ignition as well as all electrical components and disconnect the
negative cable (-) on the battery. If you wish to replace a bulb it is sufficient
to switch off the appropriate light.
•Never charge a frozen or thawed battery - risk of explosion and caustic
burns! Replace a frozen battery.
•Never use a battery which is damaged - risk of explosion! Immediately
replace a damaged battery.
B1Z-0042HB1Z-0042H
Fig. 178 Engine
compartment: plenum
chamber - battery cover
WARNING (continued)
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194
Caution
•You must only disconnect the battery if the ignition is switched off, otherwise
the electrical system (electronic components) of the vehicle may be damaged.
When disconnecting the battery from the electrical system of the vehicle, first
disconnect the negati ve terminal (-) of the battery. Then disconnect the positive
terminal (+).
•When reconnecting the battery, first connec t the positive terminal (+) and only
then the negative terminal (-) of the battery. You must on no account connect the
cables wrongly - risk of a cable fire!
•Ensure that battery acid does not come into contact with the vehicle body
otherwise damage could occur to the paintwork.
•Do not place the battery in direct dayl ight in order to protect the battery
housing from the effects of ultra-violet light.
For the sake of the environment
A removed battery is a special type of waste which is harmful to the environment -
contact your specialist garage regarding disposing of the battery.
Note
Please also refer to the guidelines ⇒page 196, “Disconnecting and reconnecting
the battery”, also after connecting the battery.
Battery with a charge level indicator, the so-called magic eye
There is a so-called magic eye ⇒fig. 179 located on the top of the battery. The
“magic eye” changes its colour in line with the charge state of and electrolyte level
in the battery.
Air bubbles can influence the colour of the “magic eye”. For this reason carefully
knock on the “magic eye” before carrying out the check.
•Green colour - the battery is adequately charged
•Dark colour - the battery has to be charged
•Colourless or yellow colour. Have the battery checked by a specialist garage
Batteries, which are more than 5 years old, must be replaced. We recommend you
have the electrolyte level inspected and adjusted to the correct level or the battery
replaced if necessary by a specialist garage.
Caution
If the vehicle has not been driven for more than 3 to 4 weeks, the battery will
discharge because certain electrical comp onents consume electricity (e.g. control
units) also in idle state. You can prevent the discharging of the battery by discon-
necting the negative terminal or charging the battery constantly with a very low
charging current. Please also refer to the notes when working on the battery
⇒ page 193, “Working on the battery”.
Fig. 179 Engine
compartment: Battery
with magic eye
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Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Inspecting the electrolyte level
The battery is practically maintenance-free under normal oper ating conditions.
We do, however, recommend that you have the electrolyte level inspected from
time to time by a specialist garage when outside temperatures are high or when
driving on long trips. You should also check the electrolyte level ⇒page 195 each
time the battery is charged.
The battery acid level will also be chec ked as part of the Inspection Service.
Operation in winter
The battery has to provide greater amounts of electricity during the winter. It also
has only part of the initial power output at low temperatures that it has at normal
temperatures.
A discharged battery may already freez e at temperatures just below 0°C.
We therefore recommend that you have the battery checked by a specialist garage
before the start of the winter, and recharged if necessary.
Note
If the vehicle is not going to be driven for a period of some weeks when there is very
severe frost one should remove ⇒page 196 the battery and store it in a place
which is protected from frost. This prevents the battery from freezing up and
thereby being destroyed.
Charging the battery
A properly charged battery is essential for reliably starting the
engine.
–Read the warning notes ⇒ in “Working on the battery” on
page 193 and ⇒.
– Switch the ignition and all electrical components off. – Only for “quick-charging”: Disconnect
both battery cables (first of all
“negative”, then “positive”).
– Carefully attach the terminal clamps of the charger to the battery terminals (red = “positive”, black = “negative”).
– You can now plug the mains cable of the charger into the power socket
and switch on the charger.
– When charging is completed: switch the charger off and unplug the mains cable from the power socket.
– Only then should you disconnect the terminal clamps of the charger.
– Reconnect the cables to the battery (first of all “positive”, then “nega- tive”).
It is not normally necessary to disconnect the cables of the battery if you recharge
the battery using low amperages (as for example from a mini-charger). Please also
refer to the instructions from the charger manufacturer.
A charging current of 0.1 of the total battery capacity (or lower) is that which should
be used until full charging is achieved.
It is, however, necess ary to disconnect both cables be fore charging the battery with
high amperages, so-called “ quick-charging”.
“Quick-charging” a battery is dangerous ⇒ in “Working on the battery” on
page 193. It requires a special charger an d appropriate knowledge. We therefore
recommend that you have your battery qu ick-charged only by your specialist
garage.
A discharged battery may already freeze at temperatures just below 0°C. ⇒. We
recommend that you no longer use a ba ttery which has thawed out because the
casing of the battery may be cracked through the formation of ice and this would
allow battery electrolyte to flow out.
The vent plugs of the battery should not be opened for charging.
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Inspecting and Replenishing
196
WARNING
Never charge a frozen or thawed battery - risk of explosion and caustic
burns. Replace a frozen battery.
Removing and installing the battery
Removing and installing the battery
– Please also refer to the note s when working on the battery
⇒ page 193.
– Switched off all electrical components and remove the ignition key. – Pull off gasket and take out the cover of the plenum chamber
in the direction of the arrow ⇒fig. 180 .
– Unclamp the battery negative terminal (-).
– Unclamp the battery positive terminal (+).
– Unscrew the screw ⇒ fig. 181 completely and remove the locking
plate.
– Move the battery in the direction of the arrow and pull it out in an upward direction.
– Installation takes plac e in the reverse order.
Please also refer to the following no tes when connecting up the battery
⇒ page 196.
Note
We do not recommend that you remove and install the battery yourself (even when
you are following the instructions given in this Owner's manual) since a battery can
be heavily damaged in the process und er certain circumstances. Contact a
specialist garage.
Disconnecting and reconnecting the battery
On disconnecting and reconnecting the batt ery the following functions are initially
deactivated or are no longer able to operate fault-free.
Fig. 180 Engine
compartment: plenum
chamber - cover
Fig. 181 Engine
compartment: The
battery
AAAB
AC
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Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
We recommend having the ve
hicle checked by a specialist garage to ensure full
functionality of all electrical systems.
Replacing the battery
You should only replace a battery with a new battery of the same capacity, voltage
(12 V), amperage and of the same size. Specialist garages have a range of suitable
batteries available.
We recommend that you only have an old battery disposed of by a specialist garage
since it does require special disposal.
For the sake of the environment
Batteries contain poisonous substances such as sulphuric acid and lead. They must
be disposed of in accordance with loca l environmental protection regulations and
on no account as domestic waste.
Windshield washer system
The windshield washer reservoir contains the cleaning fluid for the windscreen and
for the headlamp cleaning system*. The rese rvoir is located in the front left of the
engine compartment ⇒fig. 182 .
The reservoir has a capacity of 4 liters.
Clear water is not sufficient to intensivel y clean the windscreen and headlights. We
therefore recommend using clean washing water together with the screen cleaner
from Škoda genuine accessories (in winter additionally with antifreeze) which is
capable of removing stubborn dirt. Follow the instructions for use on the packaging
when using screen cleaning products.
You should always add antifreeze to the cleaning water in winter even if your
vehicle is fitted with heated windscreen washer nozzles*.
It is also possible in exceptional cases to use methylated spirits when no screen
cleaner with antifreeze is available. The concentration of methylated spirits must
not be more than 15 %. Please note, however, that the antifreeze protection at this
concentration is only adequate down to -5°C.
WARNING
Read and observe the warning notes ⇒page 185, “Working in the engine
compartment” before working in the engine compartment.
OperationOperating measure
Electrical power window (operational
faults)⇒ page 42
Enter radio code numbersee Radio Operating Instruc-
tions
Set hours⇒page 13
Data in the multi-functional indicator are
deleted.⇒page 15
B1Z-0042HB1Z-0042H
Fig. 182 Engine
compartment: Wind-
shield washer fluid reser-
voir
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Breakdown assistance
210
WARNING
•If you find yourself in flowing traffic switch on the hazard warning lights
system and place the warning triangle on the side of the road at the
prescribed distance from your vehicl e while observing all national legal
provisions. In this way you are protecting not only yourself but also other
road users.
•Never start the engine with the vehicle sitting on the raised jack - danger
of suffering injury!
Caution
If you have to change a wheel on a slope first block the opposite wheel with a stone
or similar object in order to secure th e vehicle from unexpectedly rolling away.
Note
Comply with the national legal regulations.
Changing a wheel
Always change a wheel on a level surface as far as possible.
– Take off the full wheel trim* ⇒page 211 or the caps ⇒page 211.
– In the case of light alloy wheels remove the wheel trim cap ⇒page 211.
– Slacken the wheel bolts ⇒page 212.
– Jack up the vehicle until the wheel to be changed is clear of the ground
⇒ page 213.
– Unscrew the wheel bolts and place them on a clean surface (cloth, paper etc.).
– Take off the wheel. – Fit on the spare wheel and tighten the wheel bolts slightly.
– Lower the car.
– Tighten the wheel bolts firmly, al
ternately and diagonally using the
wheel wrench ⇒page 212.
– Mount the full wheel trim/w heel trim cap or the caps.
Note
•All bolts must be clean and must turn easily.
•You must never grease or oil the wheel bolts!
•When fitting on unidirectional tyres, ensure that the tyres rotate in the correct
direction ⇒page 199.
Subsequent steps
After changing the wheel, you must perform the following steps.
– Stow and attach the replaced wheel in the spare wheel well.
– Stow the vehicle tool kit in the space provided.
– Check the tyre pressure on the spare wheel just mounted as soon as
possible.
– Have the tightening torque of the wheel bolts checked with a torque
wrench as soon as possible. The tightening torque for steel and light
alloy wheels must be 120 Nm.
– Have the defective tyre repaired as soon as possible.
WARNING
It is necessary to observe the guidelines given on ⇒page 201, “New tyres
and wheels” if the vehicle is subseq uently fitted with tyres which are
different to those it was fitted with at the works.
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Breakdown assistance213
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Raise vehicle
You have to raise the vehicle with a lifting jack in order to be able to
take off the wheel.
– Position the lifting jack by selecting the jacking point - lower sill -
which is closest to the wheel to be removed ⇒fig. 195 .
– Position the lifting jack below the jacking point and move it up until its claw is positioned directly below the vertical web of the lower sill.
– Align the lifting jack so that its claw grasps the web of the lower sill and the moving base plate of the ja ck is resting flat against firm
ground.
– Turn the lifting jack up further until the wheel is just clear of the ground.
Ground below the lifting jack which is soft and slippery can cause the vehicle to
slip off the jack. It is therefore always ne cessary to place the lifting jack on a solid
surface. Use a wide, stable base, if necessary. Use a non-slip base (e.g. a rubber foot
mat) if the surface is smooth , such as cobbled stones, a tiled floor, etc.
WARNING
•Always raise the vehicle with the doors closed - risk of injury.
•Take suitable measures to prevent the base of the lifting jack from slip-
ping off - risk of injury!
•Place the lifting ja ck only on a solid and even surface.
•Not positioning the lifting jack at the specified points can result in
damage to the vehicle. The jack can also sl ip off if it does not have sufficient
grip - risk of injury!
•Never start the engine if the vehicl e is lifted - risk of accident.
•Never lie under the vehicle if the vehicle is only lifted with the vehicle
lifting jack.
•It is important to support the vehicle with suitable supporting blocks if
you wish to work under the lifted vehicle - risk of injury!
Fig. 195 Changing a
wheel: Points for posi-
tioning car jack
AA
AB
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Breakdown assistance215
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
– Pull off the full wheel trim/cap from the wheel hub or cap from the
safety wheel bolt.
– Insert the adapter with its toothed side fully into the inner toothing of the safety wheel bolt right do wn in such a way that only the
outer hexagon is jutting out ⇒page 214, fig. 198 .
– Insert the wheel wrench fully onto the adapter .
– Slacken the wheel bolt, or tighten it firmly ⇒page 203.
– Reinstall the full wheel trim/wheel cap after removing the adapter or place the cap onto the safety wheel bolt.
–Have the tightening torque checked w i t h a t o rq u e w re n c h a s s o o n a s
possible. The tightening torque must be 120 Nm.
The safety wheel bolts on vehicles fitted with them (one safety wheel bolt per
wheel) can only be loosened or tighten up by using the adapter provided.
It is meaningful to note the code numb er hammered into the rear side of the
adapter or the rear side of the safety wheel bolts. You can obtain a replacement
adapter from a Škoda Service Partner, if necessary, by quoting this number.
We recommend that you alwa ys carry the adapter for the wheel bolts with you in
the vehicle. It should be st owed in the vehicle tool kit.
Caution
•Damage can occur to the adapter and safety wheel bolt if the safety wheel bolt
is tightened up too much.
•On steel wheels, the theft-deterrent wheel bolt must always be installed in the
hole, which is close to the valve. Otherwise the full wheel trim cannot be mounted
and the full wheel trim can be damaged during the assembly.
Note
The set of safety wheel bolts can be obtained from a Škoda Service Partner.
Jump-starting
Initial steps
You can use the battery of another vehicl e for jump-starting yours if the engine
does not start because the battery on your vehicle is flat. You will require jump-start
cables for this purpose.
Both batteries must have a rated voltage of 12 V. The capacity (Ah) of the battery
supplying the power must not be signif icantly 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 insu-
lated terminal clamps. Please pay attention to the manufacturer's instructions.
Positive cable - colour coding in the majority of cases red.
Negative cable - colour coding in the majority of cases black.
WARNING
•A discharged battery may already freez e at temperatures just below 0°C.
In case of frozen battery carry out no jump-starting - risk of explosion! Also
after thawing of the battery there is a risk of caustic burns due to leaking
acid. Replace the frozen battery.
•Please pay attention to the warning instructions relating to working in
the engine compartment ⇒page 185.
Note
•There must not be any contact between the two vehicles otherwise current may
flow as soon as the negative terminals are connected.
•The discharged battery must be proper ly connected to the system of the
vehicle.
•Switch off any mobile phone, pay attent ion to the instructions for use of the
mobile phone in such a situation.
AB
AA
AB
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