2007 SKODA OCTAVIA coolant temperature

Heating and air conditioning system113
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Note
The air outlet vents 2 ensure in the ventilation and cooling mode for a comfortable
(no-draught) ventilation of th e interior of the vehicle, also if the air outlet vents 4
are closed.
Auxiliary heating system (auxiliary heating and
ventilation)*
Description
The auxiliary heating (auxiliary heating and ventilation) heats or
supplies the interior of the vehicl e with fresh air independent of the
engine.
Auxiliary heating (auxiliary heating)
The auxiliary heating (auxiliary heating) f unctions in connection with the heater or
with the Climatic or Climatronic.
It can be used when stationa ry, when engine is switched off for preheating of the
vehicle as well as while driving (e.g. during the heating phase of the engine).
The auxiliary heating (auxiliary heating) warms up the coolant during the combus-
tion of fuel from the vehicle tank. The cool ant warms up the air, which (if the blower
speed is not set to zero) flows into the occupant compartment.
6)
Auxiliary ventilation
The auxiliary ventilation enables fresh air to flow into the vehicle interior by
switching on the blower, if the blower speed is not set to zero, whereby the interior
temperature is effectively decreased (e.g. with a vehicle parked in the sun).
Using the system
So that the auxiliary heating (auxiliary heating and ventilation) func-
tions according to your expectations, it is necessary to carry out the
basic setting before its programming.
Basic setting
– In the information display, select from the menu Main menu the
Menu Setup (settings) ⇒ page 19, fig. 11 .
– In the menu Settings select the menu Aux. Heating (auxiliary
heating).
– In the menu Aux. Heating (auxiliary heating) ⇒ fig. 128 select the
menu Weekday and set the current day.
– Return to a higher level by selecting the menu Back, i. e. in the menu
Aux. Heating (auxiliary heating) .
– In the menu Aux. Heating select the menu Running time and set the
desired operating period in steps of 1 minute. The operating period
can be 5 to 60 minutes.
– Return to a higher level by selecting the menu Back in the menu
Aux. Heating .
6)However the coolant does not warm up the engine.
Fig. 128 Information
display: Aux. Heating
(auxiliary heating)
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Heating and air conditioning system115
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
WARNING
•The auxiliary heating must never be operated in closed rooms - risk of
poisoning!
•The auxiliary heating must not be running during refueling - risk of fire.
•The exhaust pipe of the auxiliary heating is located on the underside of
the vehicle. Therefore do not place the vehicle, if you wish to operate the
auxiliary heating, in such a way that the exhaust gases of the auxiliary
heating can come easily into contact with inflammable materials (e.g. dry
grass) or easily inflammable su bstances (e.g. fuel run out).
Note
•If the auxiliary heating runs, the fuel consumption comes from the vehicle tank.
Therefore the auxiliary heating should not be operated, if there is very little fuel in
the tank.
•The exhaust pipe of the auxiliary heating, which is located on the underside of
the vehicle, must not be clogged and the exhaust flow must not be blocked.
•If the auxiliary heat ing and ventilation is running, the vehicle battery discharges.
If the auxiliary heating and ventilation has been operated several times over a
longer period, the vehicle must be driven a few kilometers in order to recharge the
vehicle battery.
•The auxiliary heating only sw itches the blower on, if it has achieved a coolant
temperature of approx. 50 °C.
•At low outside temperatures, this can resu lt in a formation of water vapour in
the area of the engine compartment. This is quite normal and is not an operating
problem.
•After switching off the auxiliary heating, the coolant pump runs for a short
period.
•The auxiliary heating and ventilation does not switch on or comes on, if the
vehicle battery indicate s a low loading state.
•The auxiliary heating (auxiliary heating) switches on, if in the information
display: Please refuel! is indicated or was indicated before switching off the igni-
tion.
•When driving, the auxiliary heating can only be switched on, if the exterior
temperature is lower than 5 °C.
•The air inlet in front of the windscreen mu st be free of ice, snow or leaves in
order to ensure that the auxiliary heating operates properly.
•So that the warm air can flow into the vehicle interior after switching on the
auxiliary heating (auxiliary heating), the control dial ⇒page 100, fig. 119 must
be turned up to the stop to the right when heating. With Climatic and Climatronic,
you can maintain the temperature norma lly selected by you (we recommend 22
°C). It is recommended to put the air flow in the position
. For heating and
climatic put the blower switch ⇒page 100, fig. 119 if necessary ⇒page 104,
fig. 122 in the position 2.
•On vehicles with DPF (die sel particle filter) the warm coolant heats up the
engine.
AA
AB
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Starting-off and Driving
118
Starting the engine
General
You can only start the engine only using an original ignition key.
•Place the gearshift lever into neutral (or place the selector lever to the position
P or N in the case of an automatic gearbox) and put on the handbrake firmly before
starting the engine.
•The clutch pedal should be fully depressed when starting the engine which
means that the starter only has to crank the engine.
•Let go of the key as soon as the engine starts otherwise there may be damage
to the starter.
The engine running noises ma y louder at first be louder for a short time after
starting the cold engine until oil pressure can be built up in the hydraulic valve
clearance compensation. This is quite no rmal and is not an operating problem.
If the engine does not start ...
You can use the battery of anothe r vehicle as a jump-start aid ⇒page 238.
It is only possible to tow-start vehicles fitted with a manual gearbox. The tow-
starting distance must not be more than 50 metres ⇒page 242.
WARNING
•Never run the engine in non ventilat ed or enclosed areas. The exhaust
gases of the engine contain besides the odorless and colourless carbon
monoxide a poisonous gas - hazard! Carbon monoxide can cause uncon-
sciousness and death.
•Never leave your vehicle unattended with the engine running.
Caution
•The starter may only be operated (ignition key position ), if the engine is not
running. If the starter is immediately operated after switching off the engine, the
starter or the engine can be damaged.
•Avoid high engine revolutions, full throttle and high engine loads as long as the
engine has not yet reached its normal oper ating temperature - risk of damaging the
engine!
•Vehicles which are fitted with an exhaust gas catalytic conver ter should not be
tow-started over a distance of more than 50 metres.
For the sake of the environment
Never warm up the engine when the vehicle is standing. Drive off right away.
Through this the engine reaches its operating temperature more rapidly and the
pollutant emissions are lower.
Petrol engines
These engines are fitted with a starter system which selects the correct fuel/air
mixture for every external air temperature.
•Do not operate accelerator befo re and when starting engine.
•Interrupt the attempt at starting after 10 seconds if the engine does not start
right awayand wait for about 30 seconds before repeating the attempt.
•It is possible that the fuse on the electrical fuel pump is defect if the engine still
does not start. Check the fuse and replace it if necessary ⇒page 243.
•Contact the nearest specialist garage to obtain professional assistance.
It may be necessary, if the engine is very hot, to slightly depress the accelerator
after the engine has started.
Diesel engines
Glow plug system
Diesel engines are equipped with a glow plug system, the preglow period being
controlled automatically in line with the coolant temperature and outside temper-
ature.
The preglow indicator light
 comes on after the igniti on has been switched on.
A3
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Starting-off and Driving119
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
You should not switch on any major electrical components during the heating
period otherwise the vehicle battery will be drained unnecessarily.
•You should start the engine immediately after the glow plug warning light 
has gone out.
•The glow plug warning light will come on for about one second if the engine is
at a normal operating temperature or if th e outside temperature is above +5°C. This
means that you can start the engine right away.
•Interrupt the attempt at starting after 10 seconds if the engine does not start
right awayand wait for about 30 seconds before repeating the attempt.
•It is possible that the fuse on the diesel preglow system is defect if the engine
still does not start. Check the fuse and replace it if necessary ⇒page 243.
•Contact the nearest specialist garage to obtain professional assistance.
Starting the engine after the fuel tank has run dry
It may take longer than normal to start the engine after refuelling if the fuel tank has
run completely dry - up to one minute. This is because the fuel system must first of
all be filled while the attempting to start the engine.
Switching off the engine
– The engine can be switched off by turning the ignition key from posi- tion ⇒page 117, fig. 132 into position .
WARNING
•Never switch off the engine before the vehicle is stationary - risk of acci-
dent!
•The brake booster only operates when the engine is running. Greater
physical effort for braking is required when engine is switched off. Because
if you do not stop as normal, this can cause an accident and severe injuries.
Caution
you should not switch the engine off right away at the end of your journey after the
engine has been operated for a lengthy peri od at high loads but should be allowed
it to run at idling speed for about 2 minutes. This prevents any accumulation of heat
when the engine is switched off.
Note
•The radiator fan may continue running fo r a further 10 minutes or so after the
engine and the ignition have been switched off. The coolant fan may, however, also
switch on again after some time if the coolant temperature rises because of an
accumulation of heat in the engine or if the engine is warm and the engine
compartment is additionally heated by strong sunlight.
•This is why particular care is required when carrying out any work in the engine
compartment ⇒page 210, “Working in the engine compartment”.
Shifting (manual gearbox)
Shift into reverse only when the car is stationary. Depress the clutch pedal and hold
it fully depressed. Wait a moment before engaging reverse gear in order to avoid
any shift noises.
A1
Fig. 133 The shift
pattern: 5-speed or 6-
speed manual gearbox
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Towing a trailer197
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
should be attached to folding arms. Adjust
the mirrors so that they provide you with
an adequate field of view to the rear.
Headlights
Before starting off with a hitched trailer, also check the setting of the headlights.
Alter the setting as necessary with th e aid of the headlight beam adjuster
⇒ page 55.
Detachable ball head
The ball rod is detachable on vehicles which feature a factory-fitted towing device.
It is stowed together with separate fitting instructions in the spare wheel well in the
luggage compartment of the vehicle.
Further information on the towing device ⇒page 198.
Note
•We recommend that you also have yo ur vehicle inspected between service
intervals if you tow a trailer frequently.
•The handbrake on the towing vehicle must be put on when coupling and
decoupling the trailer.
Driving Tips
Particular caution is required when towing a trailer.
– Do not, as far as possible, drive with your vehicle unladen and the
trailer laden.
– Do not make full use of the legal maximum speeds. This applies in particular to downhill sections.
– Apply the brakes in good time.
– Keep a check on the coolant temperature gauge if the outside temper- ature is high.
Distribution of weight
The distribution of the weight is very poor if your vehicle is unladen and the trailer
is laden. Maintain a particularly low speed if you cannot avoid driving with this
combination.
Driving speed
Do not drive faster than 80 km/hour for safety reasons. This also applies for coun-
tries in which higher speeds are allowed.
The fact that the driving stability of the vehicle + trailer combination reduces with
increasing speed means that the legally allowed speed should not be used when
there are unfavourable road, weather or wind conditions, particularly near accident
black spots.
You must always reduce your speed immedi ately as soon as you detect even just
the slightest swaying of the trailer. On no account attempt to stop the trailer from
“swaying” by accelerating.
Apply the brakes in good time! If the trailer is fitted with a trailer brake, apply the
brakes gently at first and then brake firmly . This will avoid brake jolts resulting from
the trailer wheels locking. Shift down gears in good time before negotiating a down-
hill section to allow the engine to also act as a brake.
Engine overheating
Please keep a check on the coolant temperature gauge if you have to negotiate a
lengthy slope in a low gear at a high engine speed when the outside temperature is
very high ⇒page 11.
If the needle of the coolant temperature gauge moves into the right-hand area or
even the red area of the scale, reduce yo ur speed immediately. Stop and switch off
the engine if the warning light
 in the instrument cluste r begins flashing. Wait a
few minutes and check the level of coolant in the coolant expansion bottle
⇒ page 215, “Inspecting the coolant level”.
Please refer to the following guidelines ⇒page 28, “Coolant temperature/ Coolant
quantity ”.
The coolant temperature can be reduced by switching on the heating.
Any increase in the cooling effect of the coolant fan through shifting down a gear
and increasing the engine speed is not possible since the fan speed is independent
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Inspecting and Replenishing
216
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 215, fig. 199 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 214, “Coolant”. Do not use an alternative additive if
the coolant additive G12 PLUS is not availa ble in exceptional cases. Just top up the
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 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. 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 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.
Radiator fan
The radiator fan may switch on suddenly.
The radiator fan is driven by an electric motor and controlled according to the
coolant temperature.
The radiator fan may continue 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 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!
WARNING (continued)
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Index
280
Central locking system . . . . . . . . . . . . . . . . . . . . . . . . 37
lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
unlock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Changing a wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Changing bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 248
Changing the engine oil . . . . . . . . . . . . . . . . . . . . . . 214
Changing wheels around . . . . . . . . . . . . . . . . . . . . . 225
Charging the battery . . . . . . . . . . . . . . . . . . . . . . . . . 220 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Check engine oil level . . . . . . . . . . . . . . . . . . . . . . . . 213
Child safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173 Side airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Child safety lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Child safety seat on the front passenger seat . . . . . . . . . . . . . . . 174
Safety information . . . . . . . . . . . . . . . . . . . . . . . 173
Child seat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 176 Classification into groups . . . . . . . . . . . . . . . . . 176
ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Use of child safety seats . . . . . . . . . . . . . . . . . . 176
Children and safety . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Chrome parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 201
Cigarette lighter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Climatronic Air outlet vents . . . . . . . . . . . . . . . . . . . . . . . . . . . 112
Defrosting windows . . . . . . . . . . . . . . . . . . . . . . 110
Recirculated air mode . . . . . . . . . . . . . . . . . . . . 111
Setting temperature . . . . . . . . . . . . . . . . . . . . . . 111
Climatronic (automatic air conditioning) . . . . . . 108
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Clothes hooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98 Cockpit
General view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Compartments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Computer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Convenience operation . . . . . . . . . . . . . . . . . . . . . . . . 47
Converting/masking over headlights . . . . . . . . . . 194
Coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214 replenishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 216
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Coolant level Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Coolant quantity Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Coolant temperature gauge . . . . . . . . . . . . . . . . . . . . 11
Coolant temperatur e/coolant level
Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Correct seated position . . . . . . . . . . . . . . . . . . . . . . 155
Counter for distance driven . . . . . . . . . . . . . . . . . . . . 12
Cruise control system . . . . . . . . . . . . . . . . . . . . . . . . 123 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Cup holder front . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86
D
Deactivatingan airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171
Deactivating an airbag . . . . . . . . . . . . . . . . . . . . . . . 171
Defrosting rear window . . . . . . . . . . . . . . . . . . . . . . . . 59
De-icing the windows . . . . . . . . . . . . . . . . . . . . . . . 202
Detachable towing device . . . . . . . . . . . . . . . . . . . 198 Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Diesel engines
Starting the engine . . . . . . . . . . . . . . . . . . . . . . . 118
Diesel particle filter . . . . . . . . . . . . . . . . . . . . . . . . . . 188 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Digital clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Direction indicators . . . . . . . . . . . . . . . . . . . . . . . . . . . 56 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Distance driven . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Door Child safety lock . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Driver-steering recommendation . . . . . . . . . . . . . 183
Driving economically . . . . . . . . . . . . . . . . . . . . . . . . . 190
E
EDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182
Electric power-operated window Operational faults . . . . . . . . . . . . . . . . . . . . . . . . . 47
Electric sliding/tilting roof . . . . . . . . . . . . . . . . . . . . . 48
Electrically adjustable exterior mirror . . . . . . . . . . . 65
Electronic Differential Lock . . . . . . . . . . . . . . . . . . . 182
Electronic immobiliser . . . . . . . . . . . . . . . . . . . . . 26, 36 Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Electronic stability programme . . . . . . . . . . . . . . . . 181
Electronic stability programme (ESP) Warning light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Engine starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119
NKO A5 20 MR08.book Page 280 Wednesday, April 11, 2007 2:54 PM