ignition SKODA SUPERB 2007 1.G / (B5/3U) Service Manual

Heating and air conditioning system89
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Heating and air conditioning system
Air conditioning system
Description
The air conditioning system is a combined cooling and heating
system. It makes it possible to optimally control the air temperature
at any season of the year.
Description of the air conditioning system
It is important for your safety and for your driving comfort that the air conditioning
system is operating properly.
The air conditioning system operates when switch ⇒page 90, fig. 106 is
pressed and the following conditions are met:
•engine running,
•outside temperature above +5 °C,
•blower switch switched on (positions 1 to 4).
If the cooling system is switched on, the temperature and air humidity drops in the
vehicle. The wellbeing of the occupants of the car is enhanced as a result of this
particularly at high outs ide temperatures and a high air humidity. The system
prevents the windows misting up during the cold season of the year.
The heating effect is dependent upon th e coolant temperature, thus full heat
output only occurs when the engine has reached its operating temperature.
It is possible to briefly activate recirc ulated air mode in order to enhance the
cooling effect ⇒ .
Air at a temperature of about 5°C may flow out of the vents under certain circum-
stances when the cooling system is operating. Lengthy and uneven distribution of
the air flow out of the vents (in particular at the leg area) and large differences in
temperature, for example when getting out of the vehicle, can result in chills in
sensitive persons.
The air inlet in front of the windscreen must be free of ice, snow or leaves in order
to ensure that the heating and ventilation systems operate properly. After switching on the cooling
Condensation from the evaporator of the air condi-
tioning may drip down and form a puddle below the vehicle. This is quite normal
and not an indication of a leak!
Aeration of the vehicle when ignition is switched off*
On models fitted with power sliding/tilting roof with sollar cells, the fresh air blower
is automatically switched over to “solar mode ” if the sun ray's are sufficient after
switching off the ignition. The solar cells on the sliding/tilting roof deliver power for
the fresh air blower. This supplies the interior of the car with fresh air.
For an optimum ventilation, the air outlet vents 3 and 4 must be opened
⇒ page 92.
The ventilation functions only when the sliding/tilting roof is closed.
WARNING
•For your own safety and that of other road users, ensure that all the
windows are free of ice, snow and mistin g. Please familiarize yourself about
how to correctly operate th e heating and ventilation systems, how to demist
and defrost the windows, as well as with the cooling mode.
•You should not leave recirculated air mode on over a longer period of
time, as “stale” air may result in fatigue in the driver and occupants, divert
your attention and also cause the windows to mist up. The risk of having an
accident increases. Switch recirculated air mode off as soon as the windows
begin misting up.
Note
We recommend that you do not smoke in the vehicle when the recirculating air
mode is operating since the smoke which is drawn at the evaporator from the inte-
rior of the vehicle forms deposits in the ev aporator of the air conditioning system.
This produces a permanent odour when th e air conditioning system is operating
which can only be eliminated through co nsiderable effort and expense (replace-
ment of compressor).
ACAE
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Heating and air conditioning system
94
An acoustic signal for depressed buttons
Simultaneous pressing of buttons and can be used to de-activate or
activate this function.
A higher tone is heard when switching on this function, when increasing the blower
speed or when increasing the temperature.
A lower tone is heard when switching off this function, when decreasing the blower
speed or when decreasing the temperature.
Aeration of the vehicle when ignition is switched off*
On models fitted with power sliding/tilting roof with sollar cells, the fresh air blower
is automatically switched over to “solar mode ” if the sun ray's are sufficient after
switching off the ignition. The solar cells on the sliding/tilting roof deliver power for
the fresh air blower. This supplies the interior of the car with fresh air.
For an optimum ventilation, the air outlet vents 3 and 4 must be opened
⇒ page 97.
The ventilation functions only when the sliding/tilting roof is closed.
WARNING
•For your own safety and that of other road users, ensure that all the
windows are free of ice, snow and mistin g. Please familiarize yourself about
how to correctly operate th e heating and ventilation systems, how to demist
and defrost the windows, as well as with the cooling mode.
•You should not leave recirculated air mode on over a longer period of
time, as “stale” air may result in fatigue in the driver and occupants, divert
your attention and also cause the windows to mist up. The risk of having an
accident increases. Switch recirculated air mode off as soon as the windows
begin misting up.
Note
•If the cooling system has not been switched on for a lengthy period, odours may
be produced at the evaporator because of deposits. Switch the air conditioning
system on at least once a month for appr oximately 5 minutes at the highest blower stage - also during the cold season of the year - in order to remove such odours.
Also open a window for a short time.
•We recommend that you do not smoke in the vehicle when the recirculating air
mode is operating since the smoke which is drawn at the evaporator from the inte-
rior of the vehicle forms deposits in the evaporator of the air conditioning system.
This produces a permanent odour when th e air conditioning system is operating
which can only be eliminated through co nsiderable effort and expense (replace-
ment of compressor).
•Using the air conditio ning economically ⇒page 93.
•Operational faults ⇒page 93.
Overview of the control elements
Fig. 109 Climatronic: Control elements
The buttons
Defrosting the windscreen
The displays Display of blower stages

Display of outside temperature, here: +11 °C
Defrosting the windscreen

ECON
A1
A2
A3
A4
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Starting-off and Driving
100
Ignition lock
Petrol engines
- ignition switched off, engine off
- ignition switched on
- start engine
Diesel engines - fuel supply interrupted, ignition switched off, engine off
- heating glow plugs on, ignition switched on
•You should not switch on any major elec trical components during the heating
period otherwise the vehicle batt ery will be drained unnecessarily.
- start engine
Applies to all models:
Position
To lock the steering , with the ignition key withdrawn, turn the steering wheel until
the steering locking pin is heard to engage. You should always lock the steering as
a general rule if you leave your vehicle. This acts as a deterrent against possible theft
of your vehicle ⇒.
Position Move the steering wheel back and forward a little if the ignition key cannot, or
cannot easily be turned into this position
, in order to release the steering lock.
Position
The engine is started in this position. At the same time switched on low beam or
main beam or other electrical compon ents with major power consumption are
briefly switched off. The ignition key moves back into position when one
releases the key.
The ignition key must be turned back into position each time before starting the
engine again. The starter repeat lock in th e ignition lock prevents the starter being
engaged when the engine is r unning and thus getting damaged.
Ignition key withdrawal lock (automatic gearbox)
You can only withdraw the ignition key after switching off the ignition if the selector
lever is in position P.
WARNING
•When driving, the ignition key must always be in the position (igni-
tion switched on) without the engine running. This position is indicated by
the warning lights coming on. If this is not the case, it could result in unex-
pected locking of the steerin g wheel - risk of accident!
•Only remove the ignition key from the ignition lock when the vehicle has
come to a standstill (put on the handbrake or select the selector lever posi-
tion P). The steering lock can enga ge immediately - risk of accident!
•Always withdraw the ignition key if you are going to leave the vehicle,
even for a short time. This is particularly important if children are left in the
vehicle. The children might otherwise st art the engine or operate electrical
equipment (e.g. power windows) - risk of injury!
Fig. 114 Ignition lock
positions
A1
A2
A3
A1
A2
A3
A1
A2
A3
A2
A1
A2
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Starting-off and Driving101
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
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 may 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 normal 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 215.
It is only possible to tow-start vehicl es fitted with a manual gearbox. The tow-
starting distance must not be more than 50 metres ⇒page 217.
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 oper ated 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 it s normal operating temperature - risk of damaging the
engine!
•Vehicles which are fitted wi th an exhaust gas catalytic converter 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 before 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 electric al fuel pump is defect if the engine still
does not start. Check the fuse and replace it if necessary ⇒page 220.
•If the engine does not start, contact th e 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 ignition has been switched on.
A3
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Starting-off and Driving
102
You should not switch on any major elec trical 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 the 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 220.
•If the engine does not start, contact th e nearest specialist garage to obtain
professional assistance.
Starting the engine after 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 the engine off
– Turn the ignition key into position ⇒page 100, fig. 114 .
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 minut es. This prevents any accumulation of heat
when the engine is switched off.
Note
•The radiator fan may continue running for 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 185, “Working in the engine compartment”.
A1
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Starting-off and Driving103
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
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.
The reversing lights will come on once reve rse gear is engaged, provided the igni-
tion is on.
WARNING
Never engage the reverse gear when driving - risk of accident!
Note
•One should not lay the hand on the shift lever while driving the vehicle. The
pressure of the hand will be transferred to the gearshift forks in the gearbox. This
can, over a period of time, lead to early wear of the gearshift forks.
•Depress the clutch pedal fully when changing gears, in or der to avoid unneces-
sary wear and damage.
Handbrake
Applying the handbrake
– Pull the handbrake lever up fully.
Releasing the handbrake
– Pull the handbrake lever up slightly and at the same time press in the
locking button ⇒ fig. 117.
– Hold the button pressed and push the handbrake lever down fully ⇒ .
The handbrake warning light  lights up when the handbr ake is applied, provided
the ignition is on.
B1Z-0042HB1Z-0042H
Fig. 115 Shift pattern on
models fitted with 5-
speed manual gearbox
B1Z-0042HB1Z-0042H
Fig. 116 Shift pattern on
models fitted with 6-
speed manual gearbox
Fig. 117 Centre console:
Handbrake
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Starting-off and Driving
104
A warning signal sounds and the following text appears in the display* if you have
inadvertently driven off with the handbrake applied:
"Handbrake on"
The handbrake warning is activated if you drive at a speed of more than 5 km/h for
more than 3 seconds.
WARNING
•Please note that the handbrake mu st be fully released. A handbrake
which is only partially released can re sult in the rear brakes overheating
which will have a negative effect on th e operation of the brake system - risk
of accident! In addition this can result in premature wear of the rear brake
pads.
•Never leave children unattended in th e vehicle. The children might, for
example, release the handbrake or take the vehicle out of gear. The vehicle
might then move off - risk of accident!
Caution
After the car has come to a stop, always firs t of all apply the handbrake firmly before
then additionally engaging a gear (manual gearbox) or moving the selector lever
into position P (automatic gearbox).
Parking aid*
The parking aid provides a warning of obstacles behind the vehicle.
The audible parking aid determines the di stance between the rear bumper and an
obstacle located behind the vehicle with the aid of ultrasound sensors. The sensors
are integrated in the rear bumper.
Range of sensors
The clearance warning begins at a distance of about 160 cm from the obstacle (area ⇒ fig. 118 ). The interval between the warning signals becomes shorter as the
clearance is reduced.
A continuous tone sounds from a clearanc e of just 30 cm (Bereich ) - danger
area. From this moment on do not continue driving in the selected direction or
the direction from where the obstacle is reported!
Activating
The parking aid is activated automatically when reverse gear is engaged and the
ignition is turned on. This is confir med by a brief acknowledgement signal.
Deactivating
The parking aid is deactivated by removing the reverse gear.
B1Z-0042HB1Z-0042H
Fig. 118 Parking aid:
Detection range of rear
sensors
AA
AB
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Starting-off and Driving105
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
WARNING
•The parking aid is not a substitute fo r the driver paying proper attention
and it is always the driver's responsibility to take care when parking the
vehicle or carrying out similar manoeuvres.
•You should therefore satisfy yourself, before reversing, that there is no
small obstacle, such as a rock, thin po st, trailer drawbar etc., behind your
vehicle. Such an obstacle might not be within the range detected by the
sensors.
Note
•The parking aid does not operate if you are towing a trailer (applies to models
which feature a factory-fitted towing device*).
•If a warning signal sounds for about 3 se conds after switching the ignition on
and engaging reverse gear, and there is no obstacle close to your car, this indicates
a system fault. Have the fault rectified by a specialist workshop.
•The sensors must be kept clean and free of ice to enable the parking aid to
operate properly.
Front and rear parking aid*
The parking aid provides a warning of obstacles in front and behind
the vehicle.
The audible parking aid determines the dist ance between the front or rear bumper
and an obstacle with the aid of ultrasound sensors. The sensors are integrated in the
front and rear bumper. The signal tones for the front parking aid sound lower than
for the rear parking aid.
Range of sensors
The distance warning begins at a distance of about 60 cm from the obstacle in front
of the vehicle (area ⇒fig. 120 ) and about 160 cm from the obstacle behind the
vehicle (area ⇒page 104, fig. 118 ). The interval between the warning signals
becomes shorter as the clearance is reduced.
A continuous tone sounds from a cleara nce of just 30 cm (Bereich ) - danger
area. From this moment on do not continue driving in the selected direction or
the direction from where the obstacle is reported!
Activating
The parking aid is activated when the reverse gear is engaged and the ignition is
turned on or by pressing the button ⇒fig. 119 - the symbol
 lights up in the
button. The activation is confirmed by a brief acknowledgement signal.
Deactivating
The parking aid is deactivated after pressing the button
 ⇒ fig. 119 or at a speed
of more than 15 km/h - the symbol  in the button is no longer illuminated.
B1Z-0042HB1Z-0042HFig. 119 Activating the
parking aid
B1Z-0042HB1Z-0042H
Fig. 120 Parking aid:
Detection range of the
front sensors
AAAA
AB
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Automatic gearbox*
110
Selector lever positions
The selector lever position you have engaged is shown in the information display
of the instrument cluster with the co rresponding gear symbol highlighted
⇒ fig. 123 .
P - Parklock
The driven wheels are locked mechanically in this position.
The Parklock must only be engaged when the vehicle is stationary ⇒.
If you wish to move the select or lever into or out of this position, you must press the
Shiftlock button in the handle of the select or lever and at the same time depress the
brake pedal. R - Reverse
Reverse gear must only be engaged when
the vehicle is stationary and the engine
idling ⇒ .
The brake pedal must be depressed and at the same time the Shiftlock must be
pressed, if you wish to obtain the selector lever positions R, P or N.
The reversing lights come on when the selector lever is moved into position R when
the ignition is also on.
N - Neutral
The transmission is in Neutral in this position.
The brake pedal must be depressed (if the lever is in its position for longer than 2
seconds) in order to move the selector lever out of the position N into another posi-
tion, with the ignition switched on, on a vehicle travelling at less than 5 km/h or on
a stationary vehicle.
D - Drive, position for driving forward
When the selector lever is in this position, the forward gears are shifted up and
down automatically in line with engine load, vehicle speed and the dynamic shift
programme (DSP).
You must depress the brake pedal ⇒ if you wish to move the selector lever into
position D from N when the vehicle is travelling at less than 5 km/h or is stationary.
In certain circumstances (e.g. when driving in mountainous regions or when towing
a trailer) it may be beneficial to select the manual shift programme ⇒page 113 for
a short time in order to adapt the gearbox ratios manually to the driving situations.
4 - Position when driving in hilly areas
We recommend this position if driving with the selector lever in position D would,
in certain circumstances, result in the gearbox frequently shifting between fourth
and fifth gears.
The gearbox then shifts up and down automa tically into the first, second, third and
fourth gears in line with engine load and vehicle speed. Fifth gear is not engaged in
this case. This makes it possible to expl oit greater engine braking power when the
accelerator is released ⇒.
Fig. 122 Selector lever
Fig. 123 Information
display: Selector lever
positions
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Automatic gearbox*111
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
The Shiftlock on the selector lever grip must be pressed when moving out of posi-
tion
4 into position D.
3 - Position when driving in mountainous regions
This position of the selector lever is suitable for long sloping sections.
The gearbox shifts up and down automatically into first, second and third gear in
line with engine load and vehicle speed. The fourth and fifth gears remain locked
out in order to avoid unnecess ary gear changes. Enhanced engine braking power is
thus available.
The Shiftlock on the selector lever grip must not be pressed when moving out of
position 3 into position 4.
2 - Position for extreme mountainous sections
This position of selector lever is suit able for very steep downhill sections.
T h e g e a r b o x s h i f t s u p a n d d o w n a u to m a ti c a l l y i n t o f i rs t a n d s e c o n d g e a r i n l i n e w i th
engine load and vehicle speed. Third, fourth and fifth gears are not engaged. This
position offers you the maximum possible engine braking power.
The Shiftlock on the selector lever grip must be pressed when moving out of posi-
tion 2 into position 3.
The cruise control system is locked in position 2.
WARNING
•Never move the selector lever into position R or P when driving - risk of
an accident!
•When the engine is running and the vehicle is stationary, it is necessary
to hold the car with the brake pedal in all the positions of the selector lever
(except P and N) since the power transmission is never completely inter-
rupted, also not when the engine is idling - the vehicle "creeps".
•You must on no account unintentionally operate the throttle (e.g. by
hand from the engine compartment) if a drive position is engaged when the
car is stationary. The vehicle would ot herwise immediately start off - also
when the handbrake is firmly applied - risk of an accident!
•You must move the selector lever into position P and firmly apply the
handbrake first before you or any othe r person opens the bonnet and starts
working on the engine when it is running - risk of accident! It is also essential
to observe all warnings ⇒page 185, “Working in the engine compartment”.
Note
•Take your foot off the accelerator if you inadvertently shift into N when driving
and wait until the engine speed has dropped to the idling speed range before
shifting into D.
•If you shift gear manually it is possible to select positions 4, 3 and 2, but the
automatic gearbox will not shift down until there is no risk of the engine
overrevving.
Selector lever lock
Automatic selector lever lock 
With the ignition on, the selector lever is locked when it is in the positions P and N .
You must depress the brake pedal first and press the Shiftlock button at the same
time in order to move the selector lever out of these positions. The following will be
displayed in the information display*:
"Apply foot brake when selecting gear with vehicle stationary"
Symbol
 also lights up in the selector lever cover until the brake pedal is actuated.
A time delay element ensures that the sele ctor lever is not blocked when rapidly
switching over the position N (e.g. from R to D). This does, for example, allow one
to seesaw out a stuck vehicle. The selector lever lock will click into place if the lever
is in the N position for more than 2 seconds without the brake pedal being pressed.
The selector lever lock is only active if th e vehicle is stationary or moving at speed
of less than 5 km/h. The lock is swit ched off automatically into position N when the
car is travelling at a higher speed.
WARNING (continued)
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