2008 SKODA OCTAVIA engine coolant

Inspecting and replenishing229
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
also protects the cooling and heating system from corrosion. It also prevents the
formation of scale and significantly increases the boiling point of the coolant.
You must therefore not reduce the concentr
ation of antifreeze agent in the coolant
by adding water, also not during the summ er months or in countries with a warm
climate. The concentration of coolant additive in the coolant must be at least
40%.
You can increase the amount of antifreeze in the coolant if a higher concentration
of antifreeze is necessary for climatic reasons but only up to 60% (antifreeze
protection down to approx. -40°C). The an tifreeze protection tails off above that
concentration.
Vehicles exported to countries with a co ld climate (e.g. Sweden, Norway, Finland)
are already factory-filled with a coolant wh ich offers antifreeze protection down to
about -35°C. In these countries the concentr ation of coolant additive should be at
least 50 %.
Coolant
The cooling system is factory-filled with co olant (purple in colour), which complies
with the specification TL-VW 774 G.
We recommend that you use the same c oolant additive - G12 PLUS-PLUS (purple
in colour) for toppi ng up the system.
Please contact your Škoda Service Partner if you have any questions regarding the
coolant or if you wish to fill up with a different coolant.
Your Škoda Service Partner can also suppl y you with the correct coolant additives.
Caution
•Other coolant additives may cause operational problems which, in partic-
ular, involves significantly redu cing the anticorrosion effect.
•Any faults or problems resulting from corrosion may cause a loss of
coolant and, as a consequence of th is, result in major engine damage.
Inspecting the coolant level
The coolant expansion bottle is located in the engine compartment on
the right.
– Switch the engine off.
– Open the bonnet ⇒page 224.
– Check the level of coolant in the coolant expansion bottle ⇒fig. 213.
The coolant level when the engine is cold must lie between the
(MIN) and (MAX) markings. The level may also rise slightly above
the (MAX) marking when the engine is warm.
If the coolant level in the reservoir is too low, this is indicated by the warning light
in the instrument cluster ⇒page 37, “Coolant temperature/ Coolant quantity ”.
We nevertheless recommend in specting 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 system. You
should not merely top up the coolant in the reservoir. It is also important to have
the cooling system inspected without delay by a specialist garage.
Fig. 213 Engine compart-
ment: Coolant expansion
bottle
Ab
Aa
Aa
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Inspecting and replenishing
230
Losses can only occur through the pressure relief in the cap of the coolant expan-
sion bottle which is completely free of leak s if the coolant boils as a result of over-
heating and is forced out of the cooling system.
WARNING
Read and observe the warning notes ⇒page 225, “Working in the engine
compartment” before working in the engine compartment.
Caution
One should contact a specialist garage as soon as possible if the source of over-
heating itself cannot be determined and removed, since there may be grave
damage to the engine.
Replenishing the coolant
– Switch the engine off.
– Allow the engine to cool down.
– Place a cloth over the cap of the coolant expansion reservoir ⇒page 229, fig. 213 and unscrew the cap carefully by turning it to the
left ⇒ .
– Top up the coolant.
– Screw the cap tight until it is heard to lock.
The coolant which you use for replenishing the system, must comply with one
specific specification ⇒ page 228. Do not use an alternative additive if the coolant
additive G12 PLUS is not available in exceptional cases. Just top up the system with
water and as soon as possible arrange ad justment 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! Excess coolant which is heated up is forced
out of the cooling system through the pressure 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. This 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 of the engine and contact
and obtain professional assistance from a specialist garage.
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.
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Inspecting and replenishing231
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Radiator fan
The radiator fan may switch on suddenly.
The radiator fan is driven by an electr ic motor and controlled according to the
coolant temperature.
The radiator fan may continue running fo r up to 10 minutes 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 ha s risen because of an accumulation of heat or
•the warm engine compartment is heated up additionally by strong sunlight.
WARNING
You must therefore be aware when work ing in the engine compartment that
the fan may switch on suddenly - risk of injury!
Brake fluid
Inspecting the brake fluid level
The brake fluid reservoir is located on the left of the engine compartment.
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 ⇒page 224.
– Inspect the brake fluid level in the reservoir ⇒fig. 214 . The level must
be between the “MIN” and “MAX” markings.
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 the brake system, however, if the fluid level
drops significantly within a short time or if it drops below the “MIN” marking. If the
brake fluid level is too low, this is indicated by the warning light ⇒page 40, “Brake
system ” lighting up in the instru ment cluster. In this case stop immediately and
do not drive any further! Obtain professional assistance.
WARNING
•Read and observe the warning notes ⇒page 225, “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 must 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”.
Fig. 214 Engine compart-
ment: Brake fluid reservoir
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Fuses and light bulbs259
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
F13Control unit for automatic gearbox15
F14Not assigned
F15Coolant pump10
F16Not assigned
F17Instrument cluster, windshield wiper lever and turn sig-
nal light lever5
F18Audio amplifier (sound system)30
F19Radio15
F20Phone5
F21Not assigned
F22Not assigned
F23Engine control unit10
F24Control unit for CAN databus5
F25Not assigned
F26Not assigned
F27Not assigned
F28Engine control unit15
F29Actuation for coolant pump after-running5
F30Control unit for auxiliary heating20
F31Front window wiper30
F32Not assigned
F33Not assigned
F34Not assigned
F35Not assigned
F36Not assigned
No.Power consumerAmperes
F37Not assigned
F38Radiator fan, valves10
F39Clutch pedal switch, brake pedal switch5
F40Ignition coils20
F41Not assigned
F42Actuation of fuel pump5
F43Not assigned
F44Not assigned
F45Not assigned
F46Not assigned
F47Central control unit, left main headlight, left rear light
unit30
F48Pump for ABS40
F49Power supply for terminal 15 (ignition on)40
F50Not assigned
F51Not assigned
F52Power supply relay - terminal X a)40
F53Accessory equipment50
F54Not assigned
a)In order not to drain the battery unnecessarily when starting the engine, the electrical com-
ponents of this terminal are automatically switched off.
No.Power consumerAmperes
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Technical Data275
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Capacities (in liter)
Weight (in kg)
Fuel tank capacity/of which spare55/9
Reservoir for windscreen washer system/ with headlight cleaning system3/5,5
Engine oila)
a)Oil capacity with oil filter change. Inspec
t oil level when filling; do not fill up too much. The oil level must be between the markings ⇒page 227.
3,2
Cooling system of the vehicleb)
b)On vehicles which are fitted with an independent auxiliary heating and a ventilation, the volume of the coolant is greater by a pprox. 1 ltr.
7,1
OCTAVIA
M5COMBIM5
Permissible gross weight 18701885
Unloaden weight ready for work12101225
Loading capacity660660
Loading capacity when using the TLC585585
Permissible front axle load10001000
Permissible rear axle load11001150
Permissible trailer loads, trailer braked900a)
1100b)
a)Uphills up to 12 %b)Uphills up to 8%
900a)
1100b)
Permissible trailer loads, trailer unbraked600600
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Technical Data277
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Capacities (in liter)
Weight (in kg)
Fuel tank capacity/of which spare55/9
Reservoir for windscreen washer system/ with headlight cleaning system3/5,5
Engine oila)
a)Oil capacity with oil filter change. Inspec
t oil level when filling; do not fill up too much. The oil level must be between the markings ⇒page 227.
3,6
Cooling system of the vehicleb)
b)On vehicles which are fitted with an independent auxiliary heating and a ventilation, the volume of the coolant is greater by a pprox. 1 ltr.
7,7
OCTAVIA
M6OCTAVIADQ7COM B I M6COMBIDQ7
Permissible gross weight 1925194519401960
Unloaden weight ready for work1265128512801300
Loading capacity660660660660
Loading capacity when using the TLC585585585585
Permissible front axle load1000100010001000
Permissible rear axle load1100110011501150
Permissible trailer loads, trailer braked1200a)
1400b)
a)Uphills up to 12 %b)Uphills up to 8%
1200a)
1400b)1200a)
1400b)1200a)
1400b)
Permissible trailer loads, trailer unbraked600600600600
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Technical Data279
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Capacities (in liter)
Weight (in kg)
Fuel tank capacity/of which spare55/9
Reservoir for windscreen washer system/ with headlight cleaning system3/5,5
Engine oila)
a)Oil capacity with oil filter change. Inspec
t oil level when filling; do not fill up too much. The oil level must be between the markings ⇒page 227.
4,5
Cooling system of the vehicleb)
b)On vehicles which are fitted with an independent auxiliary heating and a ventilation, the volume of the coolant is greater by a pprox. 1 ltr.
7,4
OCTAVIA
M5OCTAVIAAG6COMBIM5COMBIAG6
Permissible gross weight 1895193019101945
Unloaden weight ready for work1235127012501285
Loading capacity660660660660
Loading capacity when using the TLC585585585585
Permissible front axle load1000100010001000
Permissible rear axle load1100110011501150
Permissible trailer loads, trailer braked1200a)
1400b)
a)Uphills up to 12 %b)Uphills up to 8%
1200a)
1400b)1200a)
1400b)1200a)
1400b)
Permissible trailer loads, trailer unbraked600600600600
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Technical Data281
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Capacities (in liter)
Weight (in kg)
Fuel tank capacity/of which spare55/960a)
a)Octavia Combi 4x4, Scout.
Reservoir for windscreen washer system/ with headlight cleaning system3/5,5
Engine oilb)
b)Oil capacity with oil filter change. Inspec
t oil level when filling; do not fill up too much. The oil level must be between the markings ⇒page 227.
4,5
Cooling system of the vehiclec)
c)On vehicles which are fitted with an independent auxiliary heating and a ventilation, the volume of the coolant is greater by a pprox. 1 ltr.
8,6
OCTAVIA
M6OCTAVIADQ7COM BI M6COMBIDQ7COMBI 4x4 M6SCOUTM6
Permissible gross weight 196519851980200020852145
Unloaden weight ready for work130513251320134014251485
Loading capacity660660660660660660
Loading capacity when using the TLC585585585585585585
Permissible front axle load105010501050105011001100
Permissible rear axle load110011001150115012301230
Permissible trailer loads, trailer braked1300a)
1500b)
a)Uphills up to 12 %b)Uphills up to 8%
1300a)
1500b)1300a)
1500b)1300a)
1500b)1500a)
1600b)1500a)
1600b)
Permissible trailer loads, trailer unbraked650650650650650650
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