window Seat Leon 5D 2006 Maintenance programme

Heating, Ventilation and Air conditioning
140Heating, Ventilation and Air conditioningHeating and ventilationControls and equipment– Using the controls ⇒fig. 106 and and the control you
can set the temperature, air distribution and the airflow.
– To switch a function on or off, press the appropriate button or . When the function is activated, the display window in the
lower left of the button is lit.Temperature
With the regulator the heating level is determined. The required tempera-
ture inside the vehicle cannot be lower than the ambient temperature. Maximum heat output, which is needed to defrost the windows quickly, is
only available when the engine has reached its operating temperature.
Rear window heating

This function will be switched off automatically approximately
20 minutes
after being switched on. It can also be switched off beforehand by pushing
the button
Air recirculation mode

Air recirculation mode prevents st rong odours in the outside air from
entering the vehicle interior, for example when passing through a tunnel or in
queuing traffic ⇒.
Fig. 106 On the dash panel: Heater controls
A1
A4
A5A2
A3
A1
A2
A3
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Heating, Ventilation and Air conditioning 141
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
With low outside temperatures, the air recirculation increases the effective-
ness of the heating system by warming the air inside the passenger compart-
ment rather than the air from outside.
Air distribution
Control for setting the flow of air in the required direction.
 – Air distribution towards the windsc
reen. Air recirculation is, for safety
reasons, not possible in this position. – Air distribution to the upper body. – Air distribution to foot well – Air distribution to the windscreen and the foot well.
Blower
The airflow can be set at four speeds with the control . The airflow should
always be set at the lowest speed when driving slowly.
WARNING
•
For road safety all windows must be clear of ice, snow, and condensa-
tion. This is essential to ensure good visibility. Please familiarise yourself
with the correct operation of the heat ing and ventilation system, including
the anti-fog/defrost functions for the windows.
•
In air recirculation mode, no ambient air enters the vehicle interior. The
windows can quickly fog over if the heating is switched off. Therefore, you
should never leave the air recirculat ion mode switched on for longer
periods, as this increases the risk of an accident.Note
Please observe the general notes ⇒page 149.
A4
A5
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Heating, Ventilation and Air conditioning
142Climatic*Control switchesThe climatic or semi-automatic air conditioning system only works
when the engine is running and the turbine is switched on.
– Using the controls ⇒fig. 107 and and the control you
can set the temperature, air distribution and the airflow.
– To switch a function on or off, press the appropriate button , or . When the function is activated, the display window in
the lower corner of the button is lit.
Temperature selector ⇒page 143
Button – Heating, ventilation an d air-conditioning system on/off
⇒ page 143 Button – Rear window heating. The heating will be switched off auto-
matically approximately 20 minutes after switching on. It can also be
switched off beforehand
by pushing the button.
Button – Air recirculation mode ⇒page 144
Air distribution control ⇒page 143
Blower switch. There are four speed settings for the airflow. The airflow
should always be set at the low est speed when driving slowly.
WARNING
For road safety all windows must be clear of ice, snow, and condensation.
This is essential to ensure good visibility. Please familiarise yourself with
the correct operation of the heating and ventilation system, including the
anti-fog/defrost functions for the windows.
Fig. 107 On the dash panel: Climatic controls
A1
A5
A6A2
A3
A4
A1A2
AC
A3

A4

A5A6
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Heating, Ventilation and Air conditioning
144
– Use the air distribution control to guide the flow of air in the required direction: (to the windscreen), (to the upper
body), (to the foot well) and (to the windscreen and to the
foot well).Heating system
Maximum heat output, which is needed to defrost the windows quickly, is
only available when the engine has reached its operating temperature.
Air conditioner
When the air conditioning system is switched on, not only the temperature,
but also the air humidity in the vehicle interior is reduced. This improves comfort for the vehicle occupants and prevents misting of the windows when
the ambient air humidity is high.
If
the air conditioning syst em cannot be switched on, this may be caused by
the following reasons:
•
The engine may not be running.
•
The blower is switched off.
•
The ambient air temperature is lower than +3°C.
•
The air conditioning system compressor has been temporarily switched
off because the engine coolant temperature is too high.
•
The air conditioner fuse is faulty.
•
Another fault in the vehicle. Have the air conditioner checked by a quali-
fied workshop.
Air recirculation mode
Air recirculation mode prevents fumes or unpleasant smells from entering the vehicle.





Fig. 109 On the dash panel: Climatic controls
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Heating, Ventilation and Air conditioning 145
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
Air recirculation mode
⇒page 144, fig. 109 prevents strong odours in
the outside air from entering the vehicle interior, for example when passing
through a tunnel or in queuing traffic.
With low outside temperatures, the air recirculation increases the effective-
ness of the heating system by warming the air inside the passenger compart-
ment rather than the air from outside.
With high ambient temperatures, the air recirculation increases the effective-
ness of the air conditioning system by cooling the air inside the passenger
compartment rather than the air from outside. For reasons of safety, air recirculation is
not possible when the control for air
distribution is set to the windscreen setting .
WARNING
In air recirculation mode, no ambient air enters the vehicle interior. If the
air conditioning system is switched off, the windows can quickly mist over.
Therefore, you should never leave the air recirculation mode switched on
for longer periods, as this increases the risk of an accident.
2C-Climatronic*Control switches
The controls allow separate adjustment of air conditioning settings for the left and right.

Fig. 110 On the dash panel: 2C Climatronic controls
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Heating, Ventilation and Air conditioning
146
The air conditioning system only works when the engine is running
and the blower is switched on.
– Press the temperature control buttons ⇒page 145, fig. 110
or in order to adjust the temperature on the left -hand side or
the right-hand side respectively.
– The functions will be switched on when the buttons are pressed. When these functions are activate d, they are indicated in the
display. Also, the de-icing and re ar heated window functions will
turn on along with their corresponding yellow symbol. Press the
button again to switch off the function.The temperature can be adjusted separately for the left and right sides of the
vehicle interior.
Display of the selected interior temperature for the left side.
Button – Manual air recirculation mode
Button – Central air distribution
Button – Downward air distribution
Button – Upward air distribution
Display of the selected interior temperature for the right side.
Button – defrost function for the windscreen. The air drawn in from
outside the vehicle is directed at the windscreen. The air recirculation
mode, if switched on, will be switched off as soon as the defrost function
is switched on. At temperatures over 3°C, the air conditioning system will
be switched on automatically and the blower speed will be increased by
one level in order to dry the air. The button lights up yellow and the
symbol appears in the display.
Button – Rear window heating. The heating will be switched off auto-
matically approximately 20 minutes after switching on. However, it may
be turned off by pushing the button. Th e button lights up yellow and the
symbol appears in the display.
Temperature selector for the left side ⇒page 146 Blower control
⇒page 147
Button – Switches the 2C-Climatronic on and off ⇒page 147
Button – Automatic temperature, ventilation and air distribution
control ⇒page 146
Button – Switches heating, ventilation and air-conditioning
system off
Temperature selector for the right side ⇒page 146
WARNING
For road safety all windows must be clear of ice, snow, and condensation.
This is essential to ensure good visibility. Please familiarise yourself with
the correct operation of the heating and ventilation system, including the
anti-fog/defrost functions for the windows.
Note
Please observe the general notes ⇒page 149.Automatic mode
In automatic mode air temperature, airflow and distribution
are automatically regulated so that a specified temperature is
attained as quickly as possible and then maintained.The temperature can be adjusted separately for the left and right
sides of the vehicle interior.
Switching on automatic mode
– Press the button ⇒page 145, fig. 110 . “AUTO” is shown
on the display.
A9
A14
A1A2

A3

A4

A5

A6A7

A8

A9
A10A11
OFF
A12
AUTO
A13
ECON
A14
AUTO
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Heating, Ventilation and Air conditioning
148Temperature
There are separate temperature selectors for the left and right sides of the
vehicle interior. The selected temperatur e is displayed above the selector. It
is possible to select interior temper atures from +16°C (61°F) to +29.5°C
(86°F). These are approximate temperat ures and the actual temperature may
be slightly higher or lower depending on the ambient conditions.
If a temperature below 16°C (61°F) is selected, the display switches to LO. In
this setting the system runs at maximum cooling output and the temperature
is not regulated.
If a temperature above 29.5°C (86°F) is selected the display switches to HI. In
this setting the system runs at maximum heating output and the temperature
is not regulated.
Blower
The airflow may be adjusted freely using the control . Always have the
blower running at a low setting to ensure a constant flow of fresh air into the
vehicle. Pushing the button
 to the minimum -1, turns the Climatronic off.
Air distribution
The air distribution is adjusted using the buttons , and . It is also
possible to open and close some of the air vents separately.
Switching the air conditioning system on and off
Pressing the button switches off th e air conditioning system to save
fuel. The temperature continues to be regulated. The set temperature can
then only be reached if it is higher than the ambient temperature.
Air recirculation mode
Air recirculation mode prevents fumes or unpleasant smells
from entering the vehicle.– Press the button ⇒page 147, fig. 111 to switch air recir-
culation mode on or off. It is sw itched on if the following symbol
appears in the display

.
Air recirculation mode pr events strong odours in the ambient air from
entering the vehicle interior, for example when passing through a tunnel or in
queuing traffic.
With low outside temperatures, the air recirculation increases the effective-
ness of the heating system by warming the air inside the passenger compart-
ment rather than th e air from outside.
With high ambient temperatures, the ai r recirculation increases the effective-
ness of the air conditioning system by cooling the air inside the passenger
compartment rather than the air from outside.
For reasons of safety, air recirculation is not possible when the control for air
distribution is set to the windscreen setting
.
WARNING
In air recirculation mode, no ambient air enters the vehicle interior. If the
air conditioning system is switched off, the windows can quickly mist over.
Therefore, you should never leave the air recirculation mode switched on
for longer periods, as this increases the risk of an accident.
A10


ECON

A2
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Heating, Ventilation and Air conditioning 149
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
General notesThe pollen filter
The pollution filter (a combined pa rticulate filter and activated carbon filter)
serves as a barrier against impurities in the outside air, including dust and
pollen.
For the air conditioning system to work with maximum efficiency, the pollen
filter must be replaced at the intervals specified in the Service Schedule.
If the filter loses efficiency prematurely due to use in areas with very high
levels of air pollution, the pollen filter must be changed more frequently than
stated in the Service Schedule.
Caution
•
If you suspect that the air conditioner is damaged, switch off the air condi-
tioner with button to prevent further damage and have it checked by a
qualified workshop.
•
Repairs to the air conditioning system require specialist knowledge and
special tools. Therefore, we recommend that you take the vehicle to a quali-
fied workshop should problems occur.Note
•
If the humidity and temperature outside the vehicle are high, condensa-
tion can drip off the evaporator in the cooling system and form a pool under-
neath the vehicle, this is completely normal and there is no need to suspect
a leak.
•
Keep the air intake slots in front of the windscreen free of snow, ice and
leaves to ensure heating and cooling is not impaired, and to prevent the
windows misting over.
•
The air from the vents flows through the passenger compartment and is
extracted by slots designed for this purpose. Do not cover these slots with
articles of clothing or other objects.
•
The air conditioning system operates most effectively with the windows
and the sliding/tilting roof* closed. However, if the sun has heated up the
vehicle, the air inside can be cooled more quickly by opening the windows for
a short period.
•
Do not smoke while air recirculation mode is on, as smoke drawn into the
air conditioning system leaves a residue on the evaporator, producing a
permanent unpleasant odour.
•
The air conditioning should be turned on at least once a month, to lubri-
cate the system gaskets and prevent leaks. If a decrease in the cooling
capacity is detected, an Authorised Service Centre should be consulted to
check the system.
ECON
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Driving153
Safety First
Operating instructions
Tips and Maintenance
Te c h n i c a l D a t a
Starting
The engine is started when the key is in
this position. Electrical components
with a high power consumption are switched off temporarily.
Each time that the vehicle must be started, the ignition key must be turned to
the position . The repetitive start prevention lock of the ignition prevents
possible damage to the starter motor if the engine is already running.
WARNING
•
Wait for the vehicle to come to a standstill before removing the ignition
key from the lock. The steering lock could be activated immediately - Risk
of accident!
•
Always remove the key from the ignit ion lock when leaving the vehicle,
even if you only intend to be gone for a short period. This is especially
important if you must leave children or disabled people in the vehicle.
•
They could accidentally start the engine or work electrical equipment
such as the windows possibly resulting in an accident.
•
Unsupervised use of the keys could result in the engine being started
or electrical systems, such as the electric windows, being used. This can
result in serious injury.Caution
The starter motor will only work when the engine is stopped (ignition key
position ).
Electronic immobiliser
The immobiliser prevents unauthorised persons from driving
the vehicle.Inside the key there is a chip that deactivates the electronic immobiliser auto-
matically when the key is inserted into the ignition.
The immobiliser will be activated again automatically as soon as you pull the
key out of the ignition lock.
The engine can only be started using a genuine SEAT key with the correct
code.
Note
The vehicle cannot be operated properly if you do not have a genuine SEAT
key.Starting and stopping the engineStarting petrol engines
The engine can only be started using a genuine SEAT key with
the correct code.– Move the gear lever to the neutral position and depress the clutch pedal fully and hold it in this position, the starter will then
only have to turn the engine.
– Turn the ignition key to the starting position ⇒page 152.
A2A0
A2
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Cleaning and caring for your vehicle
184luggage compartment, or bonnet. This could cause them to freeze. Otherwise
there is a risk of malfunction.
For the sake of the environment
In the interests of environmental protection, the car should be washed only
in specially provided wash bays. This prevents toxic, oil-laden waste water
entering the sewerage system. In some districts, washing vehicles anywhere
else may be prohibited.
Note
Do not wash the vehicle in direct sunlight.Washing the car with a high pressure cleaner
Be particularly careful when using a high pressure cleaner!– Always observe the instructions for the high-pressure cleaner,
particularly those concerning the pressure and the spraying
distance .
– Increase the spraying distance for soft materials and painted bumpers.
– Do not use a high pressure cleaner to remove ice or snow from windows ⇒page 185.
– Never use concentrated jet nozzles or so-called “dirt blasters” ⇒ .
– If possible, avoid sudden braking directly after washing the vehicle. You must “dry” the brakes by applying the brakes care-
fully several times ⇒page 173.
WARNING
•
Never wash tyres with a concentrated jet or cylindrical jet (“rotating
nozzle”). Even at large spraying distanc es and short cleaning times, visible
and invisible damage can occur to the tyres. This may cause an accident.
•
Moisture, ice and salt on the brakes may affect braking efficiency. Risk
of accident.Caution
•
Do not use water hotter than 60°C. This could damage the car.
•
To avoid damage to the vehicle, maintain a sufficient distance from sensi-
tive materials for example: flexible hoses, plastic, sound proofing, etc. This is
especially important for bumpers painted in the same colour as the vehicle.
The closer the nozzle is to the surface, the greater the wear on the material.
Waxing the car
Regular waxing protects the paintwork.You need to apply wax to your car if water does not form small drops and run
off the paintwork when it is clean.
Good quality hard wax is available from your Authorised Service Centre.
A good coat of wax helps to protects the paintwork from environmental
contaminants ⇒page 182. It is also effective in protecting against minor
scratches.
Even if a wax solution is used regularly in the car wash, it is advisable to
protect the paint with a coat of hard wax at least twice a year.
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