Get Heating, Ventilation and Air conditioning Guide for Seat Leon 4 Door Second Generation (2007-2011)

Heating, Ventilation and Air conditioning142

Heating, Ventilation and Air conditioning

Heating

Controls and equipment

– Using the controls ⇒ fig. 107 and and the control you

can set the temperature, air distribution and the fan speed.

– 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 heater 

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 strong odours in the outside air from

entering the vehicle interior, for example when passing through a tunnel or in

queuing traffic ⇒ .

Fig. 107 On the dash panel there are the heating

controls

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Heating, Ventilation and Air conditioning 143

Safety First Operating instructions Practical tips Technical Data

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 the air from outside.

Air distribution

Control for setting the flow of air in the required direction.

 – Air distribution towards the windscreen. 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 deactivated. For safety reasons, the air

recirculation mode should not be connected.

 – Air distribution to the upper body.

 – Air distribution to footwell

 – Air distribution to the windscreen and the foot well.

Blower

The air flow can be set at four speeds with the control . The air flow 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 heating and ventilation system, including

the anti-fog/defrost functions for the windscreens.

• In air recirculation mode, no cold air from the outside enters the vehicle

interior. The windows can quickly fog over if the heating is switched off.

Therefore, never leave the air recirculation mode switched on for a long

time (risk of accident).

Note

Please observe the general notes ⇒ page 152.

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Heating, Ventilation and Air conditioning144

Climatic*

Control switches

The climatic or semi-automatic air conditioning system only works

when the engine is running and the turbine is switched on.

– Using the controls ⇒ fig. 108 and and the control you

can set the temperature, air distribution and the turbine speed.

– 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 145

Button – Heating, ventilation and air-conditioning system on/off

⇒ page 145

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 146

Air distribution control ⇒ page 145

Blower switch. There are four speed settings for the air flow. The air flow

should always be set at the lowest 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 windscreens.

Fig. 108 On the dash panel: Climatic controls

2 AC

3 

4 

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Heating, Ventilation and Air conditioning 145

Safety First Operating instructions Practical tips Technical Data

Note

Please observe the general notes ⇒ page 152.

Heating and cooling the interior

Interior heating

– Turn the temperature selector ⇒ fig. 109 clockwise to select

the required temperature.

– Turn the blower switch to one of the settings 1-4.

– Set the air distribution control to the air flow configuration

desired: (towards the windscreen), (towards the chest),

(towards the footwell) and (towards the windscreen and

footwell areas).

Interior cooling

– Switch on the air conditioning using the button ⇒ page 144,

fig. 108 .

– Turn the temperature selector anti-clockwise until the desired

cooling output is reached.

– Turn the blower switch to one of the settings 1-4.

Fig. 109 On the dash panel: Climatic controls

 

 

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Heating, Ventilation and Air conditioning146

– 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

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 system cannot be switched on this may be caused by

the following reasons:

• The engine may not be running.

• The blower is switched off.

• The outside temperature is below +3°C.

• The air conditioning system 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.

Air recirculation mode

Air recirculation mode prevents fumes or unpleasant smells from coming from the outside.

 

 



Fig. 110 On the dash panel: Climatic controls

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Heating, Ventilation and Air conditioning 147

Safety First Operating instructions Practical tips Technical Data

Air recirculation mode ⇒ page 146, fig. 110 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 temperatures outside, the air recirculation increases the effective-

ness of the heating system by warming the air inside the passenger compart-

ment rather than the cold 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 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 system 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).



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Heating, Ventilation and Air conditioning148

2C-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

1 

2 

3 

4 

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Heating, Ventilation and Air conditioning 149

Safety First Operating instructions Practical tips Technical Data

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, ventilation and air-conditioning system

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.

5 

6 

7 AUTO

8 DUAL

9 OFF

11 AC

Fig. 112 Navigation

display with information

about the Climatronic

Fig. 113 Radio display

with information about

Climatronic

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Heating, Ventilation and Air conditioning150

The LEDs on the Climatronic controls indicate that the selected function has

been activated.

In addition, the radio or radio and navigation 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 temperature, air flow 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 ⇒ 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 necessary 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 higher 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 distribution, 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.

AUTO





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Heating, Ventilation and Air conditioning 151

Safety First Operating instructions Practical tips Technical Data

Manual mode

In manual mode you can adjust the air temperature, 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 temperatures 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.

  

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Heating, Ventilation and Air conditioning152

When the button is off (LED off), the heating, ventilation and air condi-

tioning system is off.

When the button is off, the heating, 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 strong 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 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 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 system 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 notes

The 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 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 reaching very high

pollution levels, the pollen filter must be changed more frequently than

stated in the Service Schedule.

DUAL



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Heating, Ventilation and Air conditioning 153

Safety First Operating instructions Practical tips Technical Data

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 system 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 system 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 purpose. 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 inside 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 gaskets and prevent leaks. If a decrease in the cooling

capacity is detected, an Authorised Service Centre should be consulted to

check the system.

leon_ingles Seite 153 Montag, 26. Januar 2009 4:29 16

Heating, Ventilation and Air conditioning for Your Seat Leon 4 Door Second Generation (2007-2011)

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