2008 Seat Leon 5D heating

Heating, Ventilation and Air conditioning
1482C-Climatronic*Control switches
The controls allow separate adjustment of air conditioning settings for the left and right.The air conditioning system controls the temperature when the
engine is running and the blower is switched on.
– Turn the temperature control knobs ⇒ fig. 111 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 its buttons are pressed. When these functions are activated, they are indicated on the
radio display. In addition, all these functions are lit with LEDs.
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.
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 is lit in yellow and the symbol
appears on the radio or navigator display.
Button – Upward air distribution
Button – Central air distribution
Button – Downward air distribution
Fig. 111 On the dash panel: 2C Climatronic controls
A9
A14
A1

A2

A3

A4

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Heating, Ventilation and Air conditioning 149
Safety First
Operating instructions
Practical tips
Te c h n i c a l D a t a
Button – Manual air recirculation mode.
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. The button lights up yellow and the
symbol appears in the display.
Button – Automatic temperature, ventilation and air distribution
control ⇒page 150
button - Dual zone synchroniser
Button – Switches the 2C-Climatronic on and off ⇒page 151
Blower control ⇒page 151
button – Switches heating, ventil ation and air-conditioning system
on
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 windscreens.
Note
Please observe the general notes ⇒page 152.
Viewing Climatronic information
Information about the Climatronic system can be displayed
on the radio or radio and navigation screen mounted at
factory.
A5

A6

A7
AUTO
A8
DUAL
A9
OFF
A10A11
AC
Fig. 112 Navigation
display with information
about the ClimatronicFig. 113 Radio display
with information about
Climatronic
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Heating, Ventilation and Air conditioning
150The LEDs on the Climatronic controls indicate that the selected function has
been activated.
In addition, the radio or radio and na vigation displays mounted at factory
briefly display the current settings of the Climatronic if any are modified.
The symbols used on the radio or radio and navigation displays are the same
as the symbols used for the Climatronic controls.Automatic mode
In automatic mode air temperatur e, air flow and distribution
are automatically regulated so th at 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 ⇒page 148, fig. 111 button. “AUTO High” is
shown on the radio display (high fan speed).
– Press the button again ⇒page 148, fig. 111 . “AUTO Low”
is shown on the radio display (low fan speed).Depending upon the version and finish, the vehicle may include:
When a temperature of 22°C (72°F) is set in automatic mode a comfortable
interior climate is quickly reached. Therefore, we recommend you not to
change this adjustment, except as necess ary to suit individual preferences or
particular circumstances. The compartment temperature can be set between
+18°C (64°F) and +26°C (80°F). These are approximate temperatures and the actual temperature may be slightly high
er or lower depending on the ambient
conditions.
Climatronic maintains a constant temperature. The temperature of the air
supplied to the interior, the blower speed and the air distribution are regu-
lated automatically. The system also considers the sunlight radiation, so
there is no need for manual readjustment. Therefore, automatic mode almost
always provides the best comfort for the vehicle occupants throughout the
year.
Automatic mode is switched off whenever an adjustment is made using the
buttons for the air distribu tion, air flow or or the air recirculation button
. The temperature will continue to be regulated within the parameters
manually selected by the user.
Note
There are two automatic modes:•
Automatic mode LO: This calculates the air flow for two people.
•
Automatic mode HI: This calculates the air flow for more than two
people.
AUTOAUTO


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Heating, Ventilation and Air conditioning 151
Safety First
Operating instructions
Practical tips
Te c h n i c a l D a t a
Manual mode
In manual mode you can adjust the air temperat ure, air flow and distribution as required.Switching on manual mode
– To enter manual mode, press one of the buttons ⇒fig. 114 to
or press the air flow control . The selected function is
shown on the radio or navigator display.Temperature
There are separate temperature selectors for the left and right sides of the
vehicle interior. The selected temperature is displayed above the selector.
The compartment temperature can be set between +18°C (64°F) and +26°C
(80°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 18°C (64°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 26°C (80°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 air flow 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
When the button is on (LED lit), the heating, ventilation and air condi-
tioning system is on.
Fig. 114 On the instrument panel: 2C Climatronic
controls.
A1
A5
A10
A10



AC
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Heating, Ventilation and Air conditioning
152When the button is off (LED off), the heating, ventilation and air condi-
tioning system is off.
When the button is off, the heat ing, ventilation and air conditioning
system is switched off to save fuel. The temperature continues to self-regu-
late. The set temperature can then only be reached if it is higher than the
ambient temperature.
Driver and passenger temperature control
The button controls the synchronisation of the 2 Climatronic climate
zones.
When the button is on (LED lit), the climate zone of the Climatronic is
personalised, for example: Driver side temperature 22°C and passenger side
temperature 23°C.
When the button is off (LED off), the climate zone of the Climatronic is
synchronised, for example: Driver side temperature 22°C and passenger side
temperature 22°C.
If the button is off and the passenger side temperature is changed, the
function is automatically activated.Air recirculation mode
Air recirculation mode prevents fumes or unpleasant smells
from coming from the outside.– Press the button ⇒page 151, fig. 114 to switch air recir-
culation mode on or off. It is switched on if the following symbol
appears in the display

.
Air recirculation mode prevents stro ng odours in the ambient air from
entering the vehicle interior, for example when passing through a tunnel or in
a traffic jam. With low temperatures outside, the air recirculation increases the effective-
ness of the heating system by heating 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 ambient air.
If the windscreen air output is on and the air recirculation mode is pressed,
this remains active. When the recirculation mode is on, if the air distribution
towards the windscreen mode is selected, the recirculation mode is deacti-
vated. For safety reasons, the air recirculation mode should not be
connected.
WARNING
In air recirculation mode, no cold air from the outside enters the vehicle
interior. If the air conditioning syst em is switched off, the windows can
quickly mist over. Therefore, never leave the air recirculation mode
switched on for a long time (risk of accident).General notesThe impurity filter
The impurity filter (a combined particle filter and active carbon filter) serves
as a barrier against impurities in the ambient air, including dust and pollen.
For the air conditioning system to wo rk 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 reaching very high
pollution levels, the pollen filter must be changed more frequently than
stated in the Service Schedule.
ACAC
DUAL
DUALDUAL
DUAL

A2
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Heating, Ventilation and Air conditioning 153
Safety First
Operating instructions
Practical tips
Te c h n i c a l D a t a
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 sy
stem cannot be switched on this may be caused by
the following reasons:
•
The engine is not running.
•
The button is disconnected.
•
The outside temperature is below +3°C.
•
The air conditioning syst em compressor has been temporarily switched
off because the engine coolant temperature is too high.
•
The air conditioning fuse is faulty.
•
Another fault in the vehicle. Have the air conditioning checked by a qual-
ified workshop.Caution
•
If you suspect that the air conditioning is damaged, switch it off with the 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 you to take the vehicle to a qualified
workshop.Note
•
If the humidity and temperature outside the vehicle are high, condensa-
tion can drip off the evaporator in the cooling system and so forming a puddle
underneath 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 are not impaired, and to prevent the
windows from misting over.
•
The air from the vents flows through the passenger compartment and is
extracted by slots designed for this pu rpose. Therefore, do not cover these
slots with items of clothing or other objects.
•
The air conditioning system operates most effectively with the windows
and the sliding/tilting roof* closed. However, if the vehicle has been over-
heated by sun, the air in side can be cooled quicklier by opening the windows
for a short time.
•
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.
•
It is advisable to connect the air conditioning at least once a month, to
lubricate the system gasket s and prevent leaks. If a decrease in the cooling
capacity is detected, an Authorised Service Centre should be consulted to
check the system.
AC
AC
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Driving
158If the engine does not start immediately, switch the starter off after
10 seconds and try again after half a minute . If the engine still does not start,
the fuel pump fuse should be checked ⇒page 239, “Fuses”.
WARNING
•
Never start or run the engine in un ventilated or closed rooms. The
exhaust fumes contain carbon mono xide, an odourless and colourless
poisonous gas. Risk of fatal accidents. Carbon monoxide can cause loss of
consciousness. It can also cause death.
•
Never leave the vehicle unattended if the engine is running.
•
Never use “cold start sprays”, they could explode or cause the engine
to run at high revs. Risk of injury.Caution
•
When the engine is cold, you should av oid high engine speeds, driving at
full throttle and over-loading the engine. Risk of engine damage.
•
The vehicle should not be pushed or towed more than 50 metres to start
the engine. Unburnt fuel could enter th e catalytic converter and damage it.
•
Before attempting to push-start or tow a vehicle in order to start it, you
should first try to start it using the batte ry of another vehicle. Note and follow
the instructions ⇒page 253, “Jump-starting”.For the sake of the environment
Do not warm-up the engine by running th e engine with the vehicle stationary.
You should drive off as soon as you start the engine. This helps the engine
reach operating temperature faster and reduces emissions.
Starting diesel engines
The engine can only be started using a genuine SEAT key with
its correct code.– Move the gear lever to the ne utral position and depress the
clutch pedal thoroughly and hold it in this position for the starter
to turn the engine on.
– Turn the ignition key to the starting position.
– Turn the ignition key to position ⇒page 156, fig. 118 . The
indication lamp

will light for engine pre-heating.
– When the warning lamp turns off, turn the key to position to start the engine. Do not press the accelerator.
– Let go of the ignition key as soon as the engine starts, the starter motor must not be allowed to run on with the engine.
When starting a very cold engine, it may be a little noisy for the first few
seconds until oil pressure has built up in the hydraulic valve compensators.
This is quite normal, and no cause for concern.
If there are problems starting the engine, see ⇒page 253.
Glow plug system for the diesel engine
To avoid unnecessary discharging of th e battery, do not use any other major
electrical equipment while th e glow plugs are pre-heating.
Start the engine as soon as the glow plug warning lamp ⇒page 76 goes out.
Starting the engine after the fuel tank has been completely run dry
If the fuel tank has been completely ru n dry, it may take longer than normal
(up to one minute) to start the engine after refuelling with diesel fuel. This is
because the system must eliminate air first.
A1A2
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Driving
164•
If you must stop on a hill, always hold the vehicle using the footbrake
to avoid rolling back.
•
The footbrake must not be held for a long period of time, not even
lightly; continuous braking will cause overheating of the brakes and a
reduction or even a loss of braking power and a significant increase in
braking distances.
•
Never allow the vehicle to coast down a gradient with the selector lever
in positions N or D, even when the engine is not running. For descents, the
use of the Tiptronic programme is recommended to keep the speed
reduced.Caution
•
Never use the automatic gearbox to hold the vehicle stationary on a hill,
even for short periods, as this may overheat the gearbox and cause damage.
Apply the handbrake or depress the foot brake to hold the vehicle in position.
•
If the vehicle is allowed to roll with the engine stopped but the selector in
position N then the gearbox may be damaged because it will not be
lubricated.
Using the Tiptronic gear system
The Tiptronic system allows the driver to manually select
gears
WARNING (continued)
Fig. 125 Changing gear
with TiptronicFig. 126 Steering wheel
with levers for automatic
gearbox
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