2012 Seat Leon 5D service

99
Opening and closing
WARNING (Continued)
● Never drive with the rear lid open or half-closed, exhaust gases may
penetrate into the interior of the vehicle. Danger of poisoning!
● If you only open the rear lid, do not leave the key inside. The vehicle
will not be opened if the key is left inside.

Automatic rear lid locking
Where the vehicle has been locked by pressing the  button on the remote
control with the rear lid open, the rear lid will lock automatically when
closed.
The automatic rear lid locking time extension function can be activated.
Where this function is activated and once the rear lid has been unlocked by
pressing the 
button on the remote control key
⇒ page 91, the rear lid
can be re-opened for a certain length of time.
Where required, the automatic rear lid locking time extension function can
be activated or deactivated at a SEAT Authorised Service, which will provide
all of the necessary information.
Before the vehicle locks automatically, there is a risk of intruders getting in-
to the vehicle. Therefore, we recommend you always lock the vehicle by
pressing the 
button on the remote control or by using the central locking
button. Manual release of the rear lid in an emergency
The rear lid can be unlocked manually from inside in the
event of an emergency.
Fig. 55 Luggage com-
partment: access to man-
ual release
– Insert the key in the opening in the lining of the rear lid 1
and
move the key in the direction of the arrow until the lock is re-
leased. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

113
Lights and visibility
When a car that is manufactured in a country that drives on the right travels
to a country that drives on the left (or vice versa), it is normally necessary to
cover part of the headlight bulbs with stickers or to change the adjustment
of the headlights to avoid dazzling other drivers.
In such cases, the regulations specify certain light values that must be com-
plied with for designated points of the light distribution. This is known as
“Tourist light”.
The light distribution that the halogen and full-LED headlights of the SEAT
Leon range have, allows the specific “tourist light” values to be met without
the need for stickers or changes in the settings.
Note
“Tourist light” is only allowed temporarily. If you are planning a long stay in
a country that drives on the other side, you should take the vehicle to an
Authorised Technical Service to change the headlights. 
“Coming home” and “Leaving home” function (guidance
lights)*
The “Coming home” function should be switched on manually. However the
“Leaving home” function is automatically controlled by a photo sensor.
“Coming home”Necessary operations
To switch sys-
tem on:
– Switch off the ignition.
– Briefly flash the headlights for approximately one sec-
ond ⇒ page 107.
The “Coming home” lighting comes on when the driver
door is opened. The delay in switching off the headlights
is counted from when the last door or rear lid is closed.
The system
switches off:
– Automatically at the end of the delay period.
– Automatically, if 30 seconds after coming on, a vehicle
door or the rear lid remains open.
– If the light switch is turned to position .
– If the ignition is switched on.
“Leaving home”Necessary operationsTo switch sys-
tem on:– Unlock the vehicle when the light switch is in position
 and the photo sensor detects darkness.
The system
switches off:– Automatically, at the end of the delay period.
– When the vehicle is locked.
– When the light switch is turned to position .
– When the ignition is switched on.
Note
● In the Easy Connect system, the duration of the lighting can be adjus-
ted, and the function activated and deactivated ⇒ page 79 using the button 
and the function button Setup.
● When the “Coming home” function is activated, a tone can be heard
when the driver door is opened to warn that the light remains switched on. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

116Lights and visibility
Sun visors
Fig. 63 Sun visor
Options for adjusting driver and front passenger sun visors:
● Lower by unfolding towards the windscreen.
● The sun visor can be pulled out of its mounting and turned towards the
door ⇒ Fig. 63 1
.
● Swing the sun visor towards the door, longitudinally backwards.
Vanity mirror light
There may be a vanity mirror, with a cover, on the rear of the sun visor. When
the cover is opened 2
a light comes on.
The lamp goes out when the vanity mirror cover is closed or the sun visor is
pushed back up.
Note
The light above the sun visor automatically switches off after a few minutes
in certain conditions. This prevents the battery from discharging. Windscreen wiper system
Introduction
Additional information and warnings:
● Changing wheels round
● Heating, ventilation, cooling
● Caring for and cleaning the vehicle exterior
WARNING
If the water from the windscreen washer does not contain enough anti-
freeze, it may freeze on the windscreen, reducing forward visibility.
● In winter, ensure the windscreen washer contains enough anti-freeze.
● In cold conditions, you should not use the wash/wipe system unless
you have warmed the windscreen with the ventilation system. The anti-
freeze could freeze on the windscreen and reduce visibility.
WARNING
Worn or dirty wiper blades reduce visibility and increase the risk of acci-
dent and serious injury.
● Always replace damaged or worn blades or blades which do not clean
the windscreen correctly.
CAUTION
In icy conditions, always check that the wiper blades are not frozen to the
glass before using the wipers. In cold weather, it may help to leave the vehi-
cle parked with the wipers in service position ⇒ page 119. 

119
Lights and visibility
Windscreen wiper functions
Windscreen wiper performance in different situations:If the vehicle is at a stand-
still:The activated position provisionally changes
to the previous position.
During the automatic wipe:
The air conditioner comes on for approxi-
mately 30 seconds in air recirculation mode
to prevent the smell of the windscreen wash-
er fluid entering the inside the vehicle.
For the interval wipe:The intervals between wipes vary according
to the speed of the vehicle. The higher the
vehicle speed the shorter the intervals.
Heated windscreen washer jets
The heating only thaws the frozen jets, it does not thaw the water in the
washer hoses. The heated windscreen washer jets automatically adjust the
heat depending on the ambient temperature, when the ignition is switched
on.
Headlight wash/wipe system
The headlight washers/wipers clean the headlight lenses.
After the ignition is switched on, the first and every fifth time the wind-
screen washer is switched on, the headlights are also washed. Therefore,
the windscreen wiper lever should be pulled towards the steering wheel
when the dipped beam or main beam are on. Any incrusted dirt (such as in-
sects) should be cleaned regularly (e.g. when refuelling).
To ensure the headlight washers work correctly in winter, any snow which
has got into the bumper jet supports should be cleaned away. If necessary,
remove snow with an anti-icing spray.
Note
The wiper will try to wipe away any obstacles that are on the windscreen.
The wiper will stop moving if the obstacle blocks its path. Remove the ob-
stacle and switch the wiper back on again. 
Windscreen wipers service position
Fig. 65 Wipers in service
position
The wiper arms can be raised when the wipers are in service position
⇒ Fig. 65. To place the windscreen wipers in the service position, proceed
as follows:
● The bonnet must be closed ⇒ page 209.
● Switch the ignition on and off.
● Press the windscreen wiper lever downwards briefly ⇒ Fig. 64 4
.
Before driving, always lower the wiper arms. Using the windscreen wiper
lever, the windscreen wiper arms return to their initial position. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

120Lights and visibility
Lifting and returning windscreen wiper arms
● Place the wiper arms in the service position ⇒ 
.
● Only hold the wiper arms at the point where the blade is fixed.
CAUTION
● To prevent damage to the bonnet and the wiper arms, only leave them in
the service position.
● Before driving, always lower the wiper arms. 
Rain sensor*
Fig. 66 Windscreen wip-
er lever: adjusting the
rain sensor A
Fig. 67 Rain sensor sen-
sitive surface
The rain sensor controls the frequency of the windscreen wiper intervals,
depending on the amount of rain ⇒ 
. The sensitivity of the rain sensor can
be adjusted manually. Manual wipe ⇒ page 118
Move the lever to the required position ⇒ Fig. 66:
Rain sensor off.
Rain sensor on; automatic wipe if necessary.
Setting sensitivity level of rain sensor
– Set control to the right: highly sensitive.
– Set control to the left: less sensitive.
When the ignition is switched off and then back on, the rain sensor stays on
and starts operating again when the windscreen wipers are in position 1
and the vehicle is travelling at more than 16 km/h (10 mph).
Rain sensor modified behaviour
Possible causes of faults and mistaken readings
on the sensitive surface
⇒  Fig. 67 of the rain sensor include:

0
1A

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



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