2012 Seat Leon 5D engine

100Opening and closing
Electric windows
Electronic control of windows*
The front and rear electric windows can be operated by us-
ing the controls on the driver door. The other doors each
have a switch for their own window.
Fig. 56 Detail of the driv-
er door: controls for the
front and rear windows
Opening and closing the windows
– Press the button 
to open the window.
– Pull button 
to close the window ⇒ .
Always close the windows fully if you park the vehicle or leave it unattended
⇒ 
.
You can use the electric windows for approx. 10 minutes after switching off
the ignition if neither the driver door nor the front passenger door has been
opened and the key has not been removed from the ignition.
Buttons on the driver door Button for window in front left door
Button for window in front right door
1
2
Button for window in rear left door
Button for window in rear right door
Safety switch for deactivating the electric window buttons in the rear
doors
Safety switch *
Safety switch 5
on the driver door can be used to disable the electric win-
dow buttons in the rear doors.
Safety switch not pressed: buttons on rear doors are activated.
Safety switch pressed: buttons on rear doors are deactivated.
The safety control symbol  lights up in yellow if the buttons on the rear
door are switched off.
WARNING
● Incorrect use of the electric windows can result in injury.
● Never close the rear lid without observing and ensuring it is clear, to
do otherwise could cause serious injury to you and third parties. Make
sure that no one is in the path of a window.
● Always take the vehicle key with you when you leave the vehicle.
● Never leave children or disabled persons in the vehicle, particularly if
they have access to the keys. The misuse of the keys, for example, by
children, may result in serious injury and accident.
● The engine may accidentally be started and be out of control.
● If the ignition is switched on, the electric equipment could be activa-
ted with risk of injury, for example, in the electric windows.
● The doors can be locked using the remote control key. This could be-
come an obstacle for assistance in an emergency situation.
● Always take the key with you when you leave the vehicle. 
345

103
Opening and closing
Panoramic sliding sunroof* Introduction
Additional information and warnings:
● SEAT information system ⇒  page 73
● Central locking and locking system ⇒ page 86
WARNING
Careless or uncontrolled use of the panoramic sliding sunroof can cause
serious injuries.
● Only open or close the panoramic sliding sunroof when nobody is in
the way of its travel.
● Always take all the keys with you whenever you leave the vehicle.
● Never leave children or disabled persons in the vehicle, particularly if
they have access to the keys. Uncontrolled use of the key could lock the
vehicle, start the engine, turn on the ignition and operate the panoramic
sliding sunroof.
● The panoramic sliding sunroof can be operated for up to about ten mi-
nutes after the ignition has been switched off, provided the driver door
and the front passenger door are not opened.
Note
In case of a fault in the operation of the panoramic sliding sunroof, the anti-
trap function will not operate correctly. Visit a specialised workshop. Opening or closing the panoramic sliding sunroof
Fig. 57 On the interior
roof lining: use the rotary
button for opening and
closing
Fig. 58 On the interior
roof lining: Press the but-
ton and pull on it to lift
and close the sliding
sunroof
To open the panoramic sliding sunroof, the switch must be in the position A
. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

121
Lights and visibility
● Damaged blades: A film of water on the damaged blades may lengthen
the activation time, reduce the washing intervals or result in a fast and con-
tinuous wipe.
● Insects: insects on the sensor may trigger the windscreen washer.
● Salt on roads: in winter, salt spread in the roads may cause an extra
long wipe when the windscreen is almost dry.
● Dirt: dry dust, wax, coating on glass (Lotus effect) or traces of detergent
(car wash) may reduce the effectiveness of the rain sensor or make it react
more slowly, later or not at all.
● Cracked windscreen: the impact of a stone will trigger a single wipe cy-
cle with the rain sensor on. Next the rain sensor detects the reduction in the
sensitive surface area and adapts accordingly. The behaviour of the sensor
will vary with the size of the damage caused by the stone.
WARNING
The rain sensor may not detect enough rain to switch on the wipers.
● If necessary, switch on the wipers manually when water on the wind-
screen obstructs visibility.
Note
● Clean the sensitive surface of the rain sensor regularly and check the
blades for damage ⇒ Fig. 67 (arrow).
● To remove wax and coatings, we recommend a window cleaner contain-
ing alcohol. Checking and topping up the windscreen washer reservoir
with water
Fig. 68 In the engine
compartment: wind-
screen washer reservoir
top
Check the water level in the windscreen washer reservoir regularly and top
up as required.
● Open the bonnet 
⇒  page 209.
● The washer reservoir is marked with the symbol  on the lid
⇒ Fig. 68.
● Check there is enough water in the reservoir.
● To top up, mix water with a window cleaner recommended by SEAT
⇒ 
.
Please follow the instructions for use found on the packaging.
● In cold weather, a special antifreeze should also be added to prevent
the water from freezing ⇒ 
. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

122Lights and visibility
Recommended windscreen wipers
● For the hottest seasons we recommend summer G 052 184 A1 for clear
glass. Proportions of the mixture in the washer fluid tank: 1:100 (1 part con-
centrate per 100 parts water).
● All year round, G 052 164 A2 for clear glass. Approximate proportion of
the winter mixture, up to -18 °C (0 °F): 1:2 (1 part concentrate per 2 parts
water); otherwise, a 1:4 proportion of mixture in the washer fluid tank.
Reservoir capacity
The reservoir holds approximately 3 - 4 litres; in vehicles with headlight
washer, it is approximately 3 -6 litres.
WARNING
Never mix an unsuitable antifreeze or other similar additives with the
windscreen washer water. A greasy layer may be formed on the wind-
screen which will impair visibility.
● Use clean water with a window cleaner recommended by SEAT.
● If necessary, add a suitable antifreeze to the water in the reservoir.
CAUTION
● Do not mix cleaning products recommended by SEAT with other prod-
ucts. This could lead to flocculation and may block the windscreen washer
jets.
● When topping up service fluids, make absolutely certain that you fill the
fluids into the correct reservoirs. Using the wrong fluids could cause serious
malfunctions and engine damage! Rear vision mirror
Adjusting the exterior mirrors
Fig. 69 Driver door: con-
trol for the exterior mirror
Turn the knob to the appropriate position: – In these positions you can adjust the exterior mirrors (left or right) by
moving the control in the desired direction.
– The surfaces of the exterior mirrors are heated* depending on the
outside temperature, and on the equipment fitted in the vehicle.
– The exterior mirrors are retracted*.
Synchronized regulation of the exterior mirrors
● In the Settings - Convenience menu, select whether or not the exterior
mirrors should move in synchronisation ⇒ page 77.
● Turn the knob to position L.
● Adjust the left-hand exterior mirror. The right exterior mirror will be ad-
justed at the same time (synchronised). 
L/R



129
Seats and storage
Power socket
Electrical equipment can be connected to the 12 volt power
socket.
Fig. 75 Centre console:
front/rear 12-volt power
socket
– Remove the connector located in the centre console of the pow-
er socket ⇒ Fig. 75.
– Insert the plug of the electrical appliance into the power socket.
Electrical equipment can be connected to the 12 volt power socket. The ap-
pliances connected to each power socket must not exceed a power rating of
120 Watt.
WARNING
The power socket works only when the ignition is on. Improper use may
cause serious injury or even fire. Children should therefore not be left in
the vehicle, unattended, if the button is also left behind. Otherwise there
is a possibility that they may be injured.
CAUTION
Always use the correct type of plugs to avoid damaging the sockets.
Note
The use of electrical appliances with the engine switched off will cause a
battery discharge. 
Storage
Drink holders
Fig. 76 Centre console:
Front drink holders
Front drink holders
– Place drinks in the holder ⇒ Fig. 76. Placement of two drinks is
possible. There is also the possibility of placing larger plastic
bottles in the trims of the doors. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

134Air conditioning
Air conditioning
Heating, ventilation, cooling
Introduction
Viewing Climatronic information
On the screen of Climatronic control unit and on the screen of the factory-
fitted Easy Connect system, the theoretical values of the temperature zones
are shown.
The unit of temperature measurement can be changed in the Easy Connect
system.
Dust and pollen filter
The dust and pollen filter with its activated charcoal cartridge serves as a
barrier against impurities in the air taken into the vehicle interior.
The dust and pollen filter must be changed regularly so that air conditioner
performance is not adversely affected.
If the filter loses efficiency prematurely due to use in areas with very high
levels of air pollution, the filter must be changed more frequently than sta-
ted in the Service Schedule.
Additional information and warnings:
● Easy Connect system
● Seat functions
● Windscreen wipers and washers
● Caring for and cleaning the vehicle exterior
WARNING
Reduced visibility through the windows increases the risk of serious acci-
dents.
● Always ensure that all windows are free of ice and snow, and that
they are not fogged, so as to maintain good visibility of everything out-
side.
● The maximum heat output required to defrost windows as quickly as
possible is only available when the engine has reached its normal run-
ning temperature. Only drive when you have good visibility.
● Always ensure that you use the heating system, fresh air system, air
conditioner and the heated rear window to maintain good visibility to the
outside.
● Never leave the air recirculation on for a long period of time. If the
cooling system is switched off and air recirculation mode switched on,
the windows can mist over very quickly, considerably limiting visibility.
● Switch air recirculation mode off when it is not required.
WARNING
Stuffy or used air will increase fatigue and reduce driver concentration
possibly resulting in a serious accident.
● Never leave the fresh air fan turned off or use the air recirculation for
long periods of time; the air in the vehicle interior will not be refreshed. 

135
Air conditioning
CAUTION
● Switch the air conditioner off if you think it may be broken. This will
avoid additional damage. Have the air conditioner checked by a specialised
workshop.
● Repairs to the air conditioner require specialist knowledge and special
tools. SEAT recommends visiting a SEAT Official Service.
Note
● When the cooling system is turned off, air coming from the outside will
not be dried. To prevent fogging of the windows, SEAT recommends leaving
the cooling system (compressor) turned on. To do this, press the button 
.
The button lamp should light up.
● The maximum heat output required to defrost windows as quickly as
possible is only available when the engine has reached its normal running
temperature.
● 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. Air conditioner controls
Fig. 81 In the centre console: Climatronic controls
To switch a function on or off, press the appropriate button. Press the but-
ton again to switch off the function.
The LED on each control lights up to indicate that the respective function of
a control has been switched on.
Control but- tonAdditional information. Climatronic.
1 Temper-
ature
 ... The left and right sides can be adjusted separately. Rotate
the control to adjust the temperature accordingly.
2 Fan
The power of the fan is automatically adjusted. The fan is al-
so adjusted manually by turning the control.
3 Air dis-
tributionThe airflow adjusts automatically for comfort. You can also
switch it on manually using the buttons 3.
Safety FirstOperating instructionsPractical TipsTechnical specifications

136Air conditioning
Control but-
tonAdditional information. Climatronic.
4Indications on the temperature display screen selected for
the right and left sides.

Defrost function. The air drawn in from outside the vehicle is
directed at the windscreen and air recirculation is automati-
cally switched off. To defrost the windscreen more quickly,
the air is dehumidified at temperatures over approximately
+3 °C (+38 °F) and the fan runs at maximum output.
The air is directed at the chest of driver and passengers by
the dash panel air vents.
Air distribution towards the footwell.
Upward air distribution.

Heated rear window: this only works when the engine is run-
ning and switches off automatically after a maximum of 10
minutes.
Air recirculation ⇒ page 141.
 Buttons for seat heating ⇒ page 126.
Press the button to switch on or off the cooling system.

Press the button to make maximum cooling capacity availa-
ble. The recirculation of air and the cooling system turn on
automatically and air distribution adjusts automatically to
the position  .

Transfer the driver side temperature settings to the passen-
ger side: when the button lamp is lit , the temperature
settings on the driver side also apply to the passenger side.
Press the button or the temperature control on the passenger
side in order to change the temperature on that side. The
button lamp is lit.
Control but- tonAdditional information. Climatronic.

Automatic adjustment of temperature, fan, and air distribu-
tion. Press the button to switch on the function. The button
will light up 
.

When the configuration button  is pressed the air condi-
tioner management menu will be shown on the Easy Connect
system screen.
Switching offTurn the fan control to the 0 position or press the button .
WARNING
Stuffy or used air will increase fatigue and reduce driver concentration
possibly resulting in a serious accident.
● Never leave the fresh air fan turned off or use the air recirculation for
long periods of time; the air in the vehicle interior will not be refreshed.

Operating by using the Easy Connect* system (valid for
Radio Entry)
In the Easy Connect system it is also possible to perform various adjust-
ments to the Climatronic.
Open the air conditioner menu
● Press the Setup
button
● ALTERNATIVELY: press the MENU button in Easy Connect. With the rotat-
ing switch select the air conditioner menu and open it.
On the screen you can see and change the current settings, for example, the
temperature set for the driver side and for that of the passenger. 