2008 SKODA SUPERB fuel pump

The air conditioning system
106
Auxiliary heating (auxiliary heating and ventilation)*
Description and important information
The auxiliary heating (auxiliary he ating 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) func tions in connection with the Climatic or
Climatronic.
It can be used when stationary, when engi ne 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 coolant warms up the air, which (if the blower
speed is not set to zero) flows into the occupant compartment.
10)
Auxiliary ventilation
The auxiliary ventilation enables fresh air to flow into the vehicle interior by
switching off the engine, whereby the interior temperature is effectively decreased
(e.g. with the vehicle parked in the sun).
WARNING
•The auxiliary heating must never be op erated 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 substances (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 heatin g, which is located on the underside of
the vehicle, must not be clogged and the exhaust flow must not be blocked.
•If the auxiliary heating 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 switches the blower on, if it has achieved a coolant
temperature of approx. 50 °C.
•At low outside temperatures, this can result 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 indicates a low loading state.
•The auxiliary heating (auxiliary heating) switches off, if in the information
display: Please refuel! is indicated or wa s 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 must be free of ice, snow or leaves in
order to ensure that the auxili ary heating operates properly.
•So that warm air can flow into the vehi cle interior after switching on the auxil-
iary heating, you must maintain the te mperature normally selected by you (we
recommend 22°C). It is recommended to put the air flow in the position
.
•On vehicles with DPF (diesel particle filter) the warm coolant heats up the
engine.
10)However the coolant does not warm up the engine.
NKO B6 20.book Page 106 Wednesday, March 26, 2008 3:15 PM

Starting-off and Driving
112
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 236.
It is only possible to tow-start vehicles fitted with a manual gearbox. The tow-
starting distance must not be more than 50 metres.
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 241.
•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
NKO B6 20.book Page 112 Wednesday, March 26, 2008 3:15 PM

Fuel207
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
– Press the fuel tank flap closed.
The correct grade of fuel for your vehicle as well as the tyre size and inflation pres-
sures are stated on a sticker affixed to the inside of the fuel filler flap. Further infor-
mation on fuel ⇒page 205.
The fuel tank has a capacity of about 60 litres.
WARNING
Pay attention to any legal requirements if you do carry a spare canister in the
vehicle. We do not recommend carrying any fuel canisters in your vehicle for
safety reasons. The canister can be da maged in the event of an accident and
fuel may leak out.
Caution
•Before refuelling it is necessary to switch off the auxiliary heating system (auxil-
iary heating and ventilation) *.
•Remove any fuel which has spilled onto the paintwork of your vehicle immedi-
ately - risk of paint damage!
•Vehicles fitted with catalytic converter sh ould never be allowed to let the fuel
tank to run completely empty. An irregular supply of fuel to the engine can result in
misfiring and unburnt fuel may get into the exhaust system, which may result in
overheating and damage to the catalytic converter.
•Make sure that the valve is not pressed into the filler tube when inserting the
pump nozzle into the filler tube. Otherwis e you are unintentionally filling up the
volume, which in case of heat can cause an expansion of the fuel. This can lead to
an overflow of fuel or damage to parts of the fuel reservoir.
•T h e f u e l t a n k i s f u l l j u s t a s s o o n a s t h e pump nozzle switches off for the first time,
provided the nozzle has been operated properly. Do not continue refuelling -
otherwise the expansion volume is filled up.
NKO B6 20.book Page 207 Wednesday, March 26, 2008 3:15 PM

Breakdown assistance
240
– Depress the clutch pedal fully when the engine fires and take the vehicle out of gear.
For technical reasons it is not possibl e to tow-start a car fitted with an automatic
gearbox .
WARNING
There is high risk of having an accide nt when tow-starting a vehicle, when
for example the towed vehicle r uns into the towing vehicle.
Caution
Vehicles which are fitted with a catalytic converter should not be tow-started over
a distance of more than 50 metres. Unburnt fuel may get into the catalytic converter
and damage it.
Towing in a vehicle fitted with a manual gearbox
Please refer to the notes ⇒page 237.
The car can be towed in with a tow bar or a tow rope or with the front or rear wheels
raised. The maximum towing speed is 50 km/h.
Towing of a vehicle with an automatic gearbox
Please refer to the notes ⇒page 237.
The car can be towed in with a tow bar or a tow rope. Refer at the same time to the
following guidelines.
•Move selector lever into N .
•The maximum towing speed is 50 km/h.
•The maximum permissible towing distance is 50 km. The gear oil pump does
not operate when the engine is not runni ng; the gearbox would not be adequately
lubricated at higher speeds an d over longer towing distance.
Caution
If the vehicle is towed in by a recovery vehi cle, it should only be towed in with the
front wheels raised. If the vehicle is ra ised at rear, the automatic gearbox is
damaged! (Does not apply to the automatic gearbox DSG).
Note
The vehicle must be transported on a special vehicle or trailer if it is not possible to
tow in the vehicle in the way described or if the towing distance is greater than
50 km.
NKO B6 20.book Page 240 Wednesday, March 26, 2008 3:15 PM

Fuses and light bulbs243
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
F12Lambda probe10
F13Control unit for automatic gearbox15
F14Not assigned
F15Water 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
F27Va lve for fuel d osi ng15
F28Engine control unit15
F29Main relay5
F30Control unit for auxiliary heating20
F31Front window wiper30
F32Not assigned
F33Not assigned
F34Not assigned
F35Not assigned
No.Power consumerAmperes
F36Not assigned
F37Not assigned
F38Radiator fan, valves10
F39Not assigned
F40Not assigned
F41Not assigned
F42Not assigned
F43Ignition30
F44Not assigned
F45Not assigned
F46Not assigned
F47Front left main headlight, left rear light unit30
F48Pump for ABS40
F49Not assigned
F50Not assigned
F51Not assigned
F52Power supply relay - terminal 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
NKO B6 20.book Page 243 Wednesday, March 26, 2008 3:15 PM

Fuses and light bulbs
244
Fuse assignment in engine compartment - version 2
Certain electrical components are only st andard on certain vehicle model versions
or only suppliable as optional equipment for certain models.
No.Power consumerAmperes
F1Not assigned
F2Control unit for automatic gearbox DQ20030
F3Measuring circuit5
F4Valves for ABS30/20
F5Control unit for automatic gearbox DQ25015
F6Instrument cluster, windshield wiper lever and turn sig-
nal light lever5
F7Power supply for terminal 15 (ignition on)40
F8Radio15
F9Phone5
F10Engine control unit, Main relay5/10
Fig. 215 Schematic repre-
sentation of fuse box in
engine compartment -
version 2
F11Control unit for auxiliary heating20
F12Control unit for CAN databus5
F13Engine control unit15/30
F14Ignition20
F15Lambda probe - Petrol
Glow plug system relay and fuel pump - Diesel10
5
F16Front right main headlight, right rear light unit30
F17Horn15
F18Audio amplifier (sound system)30
F19Front window wiper30
F20Valve for fuel dosing
water pump20
10
F21Lambda probe10/15
F22Not assigned
F23Main relay
Valves
High pressure pump5
10
15
F24Fa n10
F25Pump for ABS30/40
F26Left main headlight30
F27Control unit for glow plug system50
F28Not assigned
F29Accessory equipment50
F30Power supply relay - terminal X a)50
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
NKO B6 20.book Page 244 Wednesday, March 26, 2008 3:15 PM

Fuses and light bulbs245
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Fuse assignment in the dash panel
Certain electrical components are only standard on certain vehicle model versions
or only suppliable as optional equipment for certain models.
No.Power consumerAmperes
1Diagnostic socket, engine cont rol unit, relay EKP, control
unit for EKP7,5
2Control unit for ABS, ESP, swit ch for tyre inflation pres-
sure-control system, brake sensor5
3Switch and control unit for airbag5
4WIV, parking light, dimming rear mirror, pressure sensor,
telephone preinstallation5
5Control unit for headlamp beam adjustment and head-
light swivel, control unit for parking aid5
6Instrument cluster, control unit for electromechanical
power steering, Haldex5
7Valve heating, air mass meter10
Fig. 216 Schematic repre-
sentation of the fuse carrier
in the dash panel
8Control unit for trailer detection5
9Relay for auxiliary heating5
10Adaptive left main headlight10
11Adaptive right main headlight10
12Central locking system of the front doors10
13Diagnostic socket, light switch, rain sensor, clock7,5
14Central locking system and bonnet lid15
15Central control unit - interior lights7,5
16The air conditioning system7,5
17Central locking system of the rear doors10
18Not assigned
19Not assigned
20ABS, ESP, Uphill-Start off-Assist5
21Not assigned
22Air blower for Climatronic40
23Front power window30
24Selector lever lock5
25Rear window heater
relay for auxiliary heating and ventilation25
30
26Power socket in the luggage compartment25
27Fuel pump relay,
Fuel pump relay, control unit for fuel pump, injection
valves15
20
28Not assigned
29Not assigned
30Not assigned
No.Power consumerAmperes
NKO B6 20.book Page 245 Wednesday, March 26, 2008 3:15 PM