2011 Seat Leon 5D air condition

146Air conditioning
Air distribution
Control 4
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 footwell
Blower
The air flow can be set at four speeds with the control 5
. 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 your-
self with the correct operation of the heating and ventilation system, in-
cluding the anti-fog/defrost functions for the windscreens.
● In air recirculation mode, no cold air from the outside enters the vehi-
cle 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 155. 

147
Air conditioning
Climatic* Controls
Fig. 107 On the dash panel: Climatic controls
The climatic or semi-automatic air conditioning system only works
when the engine is running and the blower is switched on.
– Use the knobs ⇒ fig. 107 1
and 5 and control 6 to set the
temperature, air distribution and blower speed.
– To switch a function on or off, press the appropriate button 2
,
3 or 4. When the function is activated, the display window in
the lower corner of the button is lit.
Temperature selector ⇒  page 148
AC
button – Heating, ventilation and air-conditioning system on/off
⇒  page 148
12
 button – Heated rear window 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 149
Air distribution control ⇒ page 148
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. 
3
456
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

148Air conditioning
Note
Please observe the general notes ⇒ page 155. 
Heating and cooling the interior
Fig. 108 On the dash panel: Climatic controls
Interior heating
– Turn the temperature selector ⇒ fig. 108 1
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 de-
sired: 
(towards the windscreen),  (towards the chest), (towards the footwell) and  (towards the windscreen and
footwell areas). Interior cooling
–
Switch on the air conditioner using the button ⇒ fig. 107 AC
.
– Turn the temperature selector anti-clockwise until the desired
cooling output is reached.
– Turn the blower switch to one of the settings 1-4.
– Use the air distribution control to guide the flow of air in the re-
quired direction: 
(to the windscreen),  (to the upper
body),  (to the footwell) and  (to the windscreen and to the
footwell). 

149
Air conditioning
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 is not 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 conditioner fuse is faulty.
● Another fault in the vehicle. Have the air conditioner checked by a speci-
alised workshop. 
Air recirculation mode 
Air recirculation mode prevents fumes or unpleasant smells from coming from the outside.
Fig. 109 On the dash panel: Climatic controls

Safety FirstOperating InstructionsPractical TipsTechnical Specifications

150Air conditioning
Air recirculation mode ⇒ 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 temperatures outside, the air recirculation increases the effective-
ness of the heating system by warming the air inside the vehicle rather than
the cold air from outside.
With high outside temperatures, the air recirculation increases the effective-
ness of the air conditioning system by cooling the air inside the vehicle
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 connec-
ted.
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).


151
Air conditioning
2C-Climatronic*
Controls
The controls allow separate adjustment of air conditioner settings for the left and right.
Fig. 110 On the dash panel: 2C Climatronic controls
The air conditioner controls the temperature when the engine is
running and the blower is switched on.
– Turn the temperature control knobs ⇒ fig. 110 to adjust the
temperature on the left hand side or the right hand side respec-
tively.
– 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 func-
tion is switched on. At temperatures over 3°C, the air conditioning sys-
tem will be switched on automatically in order to dehumidify the air.
The button is lit in yellow and the symbol appears on the radio or navi-
gator display.

button – Upward air distribution
 button – Central air distribution
 button – Downward air distribution
 button – Manual air recirculation mode
 button – Heated rear window The heating will be switched off auto-
matically approximately 20 minutes after switching on. However, it may 
1
23456
Safety FirstOperating InstructionsPractical TipsTechnical Specifications

152Air conditioning
be turned off by pushing the button. The button lights up yellow and
the symbol appears in the display.AUTO
button – Automatic temperature, ventilation and air distribution
control ⇒ page 153
DUAL
button - Dual zone synchroniser
OFF button – Switches the 2C-Climatronic on and off ⇒ page 154
Blower control ⇒ page 154
AC
button – Switches heating, ventilation 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 155. 
7
891011
Viewing Climatronic information
Information about the Climatronic system can be displayed
on the radio or radio and navigation screen mounted at fac-
tory.
Fig. 111 Navigation dis-
play with information
about the Climatronic
Fig. 112 Radio display
with information about
Climatronic


153
Air conditioning
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 AUTO
⇒ 
fig. 110 button. “AUTO High” is shown on the
radio display (high fan speed).
– Press the AUTO
button again ⇒ fig. 110. “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 inside 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 al-
most 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 peo-
ple. 
Safety FirstOperating InstructionsPractical TipsTechnical Specifications