air condition Seat Leon SC 2017 User Guide

Emergencies
Vehicle fuses Fig. 101
On the driver-side dash panel: fuse
bo x
c
over. Fig. 102
In the engine compartment: fuse box
c o
v

er. Read the additional information carefully
› ›
›

 page 63
Only replace fuses with a fuse of the same
amperage (same colour and markings) and
size. Opening and closing the fuse box situated
below the da

sh panel
● Opening: fold the cover down ››
› Fig. 101.
● Closing: push back the cover it in until it
clic
ks into place.
To open the engine compartment fuse box
● Open the bonnet  ›››
page 270.
● Press the locking tabs to release the fuse
box c
over ››› Fig. 102.
● Then lift the cover out.
● To fit the cover, place it on the fuse box.
Pu
sh the locking tabs down until they click
audibly into place.
Fuses in the vehicle interior
No.Consumers/Amps
4Taxis3
5Gateway5
6Automatic gearbox lever5
7Air conditioning and heating control
panel, heating the back window.10
8Diagnosis, handbrake switch, light
switch, reverse light, interior lighting,
lit-up door sill10
9Steering column5
10Radio display7.5
11Left lights40
No.Consumers/Amps
12Radio20
14Air conditioner fan40
15KESSY10
16Connectivity Box.7.5
17Instrument panel7.5
18Rear camera7.5
19KESSY7.5
214x4 Haldex Control Unit15
22Trailer15
23Sunroof30
24Right lights40
25Left door30
26Heated seats20
27Interior light30
28Trailer25
32Parking aid control unit, front camera,
radar7.5
33Airbag5
34Reverse switch, climate sensor, electro-
chromic mirror, rear power sockets
(USB)7.5
35Diagnosis, headlight control unit,
headlight adjuster10 102

Controls and displays
Operation
C ontr
o
ls and displays
General instrument panel Door release lever
Centr
al

locking switch . . . . . . . . . . . .128
Electric control to adjust exterior
mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Air outl

ets . . . . . . . . . . . . . . . . . . . . . . . . 176
Control lever for:
– Turn s ign

als and main beam
headlights . . . . . . . . . . . . . . . . . . . . . 141
– Lane Ass i

st . . . . . . . . . . . . . . . . . . . . . 224
– Main beam a
ssist . . . . . . . . . . . . . . . 142
– Cruise c
ontrol system (CCS) . . . . .209
Depending on equipment fitted:
– Lev er f

or cruise control . . . . . . . . . .209
Steering wheel with horn and – Driver airbag . . . . . . . . . . . . . . . . . . . 22
– On-boar d c

omputer controls . . . .36
– Contro
ls for radio, telephone,
navigation and speech dialogue
system ›››
Booklet Radio
– Paddle levers for tiptronic gear-
shift (automatic gearbox) . . . . . . .193
Instrument panel . . . . . . . . . . . . . . . . . 114
1 2
3
4
5
6
7
8 Control lever for:
– Wind
s

creen wipers and washer . .148
– Wipe and wa
sh system . . . . . . . . . . 148
– On-board c
omputer . . . . . . . . . . . . . 36
Depending on equipment fitted: ra-
dio or disp
lay for Easy Connect
(navigation, radio, TV/video) . . . . . .120
Depending on the equipment, but-
tons
for:
– SEAT driving modes . . . . . . . . . . . . .230
– Star t

-Stop system . . . . . . . . . . . . . . . 205
– Park a
ssist system . . . . . . . . . . . . . . 237
– Hazard w
arning lights . . . . . . . . . .145
– Tyr
e pressure switch . . . . . . . . . . . .285
– Airbag off di
splay . . . . . . . . . . . . . . . 89
Depending on the equipment,
glov e c

ompartment with: . . . . . . . . .158
– CD pl a

yer* and/or SD card*
››› Booklet Radio
Tyre pressure switch . . . . . . . . . . . . . .285
Front passenger airbag switch . . . .89
Front passenger airbag . . . . . . . . . . .22
Passenger seat heating control . . . .154
Depending on the equipment, con-
tro l

s for:
– Heating and ventilation system or
manual air conditioner . . . . . . . . . .56, 54
– Autom atic

air conditioner . . . . . . .52
9
10
11
12
13
14
15
16
17 Depending on the equipment:
– USB/A UX
-IN inp

ut . . . . . . . . . . . . . . 123
– Connectivity
Box/Wireless Charg-
er* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 123
– Storag
e compartment
Depending on equipment fitted,
gear lever or selector lever for:
– Manual gearbox . . . . . . . . . . . . . . . . 190
– Automatic
gearbox . . . . . . . . . . . . . 191
Electronic parking brake switch . . .183
Auto Hold switch . . . . . . . . . . . . . . . . . 208
Starter button (Keyless Access lock-
ing and ignition sys
tem) . . . . . . . . . . 180
Driver's seat heating control . . . . . .154
Ignition lock (vehicles without Key-
les
s Access) . . . . . . . . . . . . . . . . . . . . . . 178
Knee airbag . . . . . . . . . . . . . . . . . . . . . . 23
Adjustable steering column . . . . . . .21
Storage compartment
Bonnet lock
release . . . . . . . . . . . . . . . 271
Headlight range control . . . . . . . . . . .146
Headlight switch . . . . . . . . . . . . . . . . . 140
Electric windows . . . . . . . . . . . . . . . . . 136 Note
● Some of the equipment li

sted in this sec-
tion is only fitted on certain models or are op-
tional extras. » 18
19
20
21
22
23
24
25
26
27
28
29
30
31
113
Technical data
Advice
Operation
Emergencies
Safety

Lights and visibility
●
In icy c ondition
s, always check that the
wiper blades are not frozen to the glass be-
fore using the wipers. In cold weather, it may
help to leave the vehicle parked with the wip-
ers in service position ›››
 page 72. Note
● The w inds

creen and window wipers only
function when the ignition is switched on and
the bonnet or rear lid, respectively, are
closed.
● The interval wipe speed varies according to
the vehic
le speed. The faster the vehicle is
moving, the more often the windscreen is
cleaned.
● The rear wiper is automatically switched on
when the winds
creen wiper is on and the car
is in reverse gear. Windscreen wiper functions
Windscreen wiper performance in different sit-
uations
If the vehicle is at a
standstillThe activated position provision-
ally changes to the previous posi-
tion.
During automatic
wipe
The air conditioner comes on for
approximately 30 seconds in air
recirculation mode to prevent the
smell of the windscreen washer
fluid entering the inside the vehi-
cle.
Windscreen wiper performance in different sit-
uations
For the interval wipe
Intervals between wipes depend
on the vehicle's speed. The high-
er the vehicle speed the shorter
the intervals. Heated windscreen washer jets
The heatin
g on

ly thaws the frozen jets, it
does not thaw the water in the washer hoses.
When the ignition is switched on the heated
windscreen washer jets automatically adjust
the heat depending on the ambient tempera-
ture.
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 windscreen 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 insects) should be
cleaned regularly (e.g. when refuelling).
To ensure the headlight washers work cor-
rectly 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 ar

e on the windscreen. The wiper will
stop moving if the obstacle blocks its path.
Remove the obstacle and switch the wiper
back on again. 149
Technical data
Advice
Operation
Emergencies
Safety

Transport and practical equipment
bars or conventional roof carrier systems can-
not be sec
ur
ed to the roof water drains.
As the roof water drains are integrated in the
roof to reduce air resistance, only SEAT-ap-
proved cross bars and roof carrier systems
can be used.
Cases in which cross bars and the roof carri-
er system should be disassembled.
● When they are not used.
● When the vehicle is washed in a car wash.
● When the vehicle height exceeds the maxi-
mum height, for ex
ample, in some garages.WARNING
When heavy or bulky loads are transported
on the roof c

arrier system, car driving per-
formance is affected, as the centre of gravity
shifts and there is greater wind resistance.
● Always secure the load properly using belts
or retainin
g straps that are suitable and in a
good condition.
● Bulky, heavy, long or flat loads have a neg-
ative effect
on aerodynamics, the centre of
gravity and driving performance.
● Avoid sudden braking and manoeuvres.
● Adapt your speed and driving style at all
times t
o suit visibility, weather, road and traf-
fic conditions. CAUTION
● Remo v

e the cross bars and the roof carrier
system before entering a car wash.
● Vehicle height is increased by the installa-
tion of cr
oss bars or a roof carrier system and
the load secured on them. For this purpose,
check that your vehicle's height does not sur-
pass the headspace limit, for example, for un-
derpasses or for entering garage doors.
● Cross bars, a roof carrier system and the
load sec
ured on them should not interfere
with the roof aerial or hamper the path of the
panoramic sun roof ››› page 138 and the rear
lid.
● On opening the rear lid make sure that it
does not
knock into the roof load. For the sake of the environment
When cross bars and a roof carrier system are
ins t

alled, the increased air resistance means
that the vehicle uses more fuel. Attach the cross bars and the roof car-
rier sy
s
t

em Fig. 187
Leon/Leon SC: attachment points for
the r oof
r

ailings for the roof carrier system. » 171
Technical data
Advice
Operation
Emergencies
Safety

Operation
Fig. 188
Leon ST: attachment points for the
roof r
ailings for the roof carrier system. The crossbars are the basis of a series of spe-
c
i
al

roof carrier systems. For safety reasons,
special fixtures must be used to safely trans-
port luggage, bicycles, skis, surf boards or
boats on the roof. Suitable accessories can
be acquired at SEAT dealerships.
Always secure the crossbars and the roof car-
rier system properly. Always take the assem-
bly instructions that come with the crossbars
and the roof carrier system in question into
account.
LEON model
The front and rear attachment points 1 and
2 are only visible when the doors are open
› ›
›

Fig. 187 A.
Leon SC model
The front and rear attachment points 1 are
on ly


visible when the doors are open. The rear attachment points
3 are marked on the
t op edg
e of

the glass with arrow heads
››› Fig. 187 B.
LEON ST model
The crossbars are assembled on the roof rail-
ings. The attachment points can be seen on
bottom of the roof railing ››› Fig. 188. WARNING
Incorrect attachment and use of the cross-
bar s

and the roof carrier system may cause
the whole system to detach from the roof and
cause an accident and injuries.
● Always take the manufacturer assembly in-
structions
into account.
● Use only crossbars and the roof carrier sys-
tem when they ar
e in perfect condition and
are properly secured.
● Secure the crossbars and the roof carrier
syst
em properly.
● Check threaded joints and attachments
travel
ling and if necessary tighten them after
you have travelled a short distance. When
making long trips, check the threaded joints
whenever you stop for a rest.
● Always fit the special roof carrier systems
correctly
for wheels, skis and surfboards, etc.
● Do not modify or repair the crossbars or
roof c
arrier system. Note
Always read the assembly instructions that
come w ith the c

rossbars and the roof carrier
system carefully and keep them in the vehi-
cle. Loading the roof carrier system
The load can only be secured if the crossbars
and the roof
c

arrier system are properly in-
stalled ››› .
Max imum authori

sed roof load
The maximum permissible roof load is 75 kg.
This figure comes from the combined weight
of the roof carrier, the cross bars and the load
itself on the roof ››› .
A lw
a

ys check the weight of the roof carrier
system, the cross bars and the weight of the
load to be transported and weigh them if
necessary. Never exceed the maximum au-
thorised roof load.
If you are using cross bars and a roof carrier
with a lower weight rating, you will not be
able to carry the maximum authorised roof
load. In this case, do not exceed the maxi-
mum weight limit for the roof carrier which is
listed in the fitting instructions.
172

Air conditioning
Distributing a load
Di s
trib
ute loads uniformly and secure them
correctly ››› .
Chec k
att

achments
Once the cross bars and roof carrier system
have been installed, check the bolted con-
nections and attachments after a short jour-
ney and subsequently with a certain frequen-
cy. WARNING
Exceeding the maximum authorised roof load
can r e

sult in accidents and considerable vehi-
cle damage.
● Never exceed the maximum authorised
load on the r
oof and on the axles or the vehi-
cle's maximum authorised weight.
● Never exceed the load capacity of the cross
bars
and the roof carrier system, even if the
maximum authorised roof load has not been
reached.
● Secure heavy items as far forward as possi-
ble and di
stribute the vehicle load uniformly. WARNING
If the load is loose or not secured, it could fall
from the r oof

carrier system or cause acci-
dents and injuries.
● Always use belts or retaining straps that
are suit
able and in a good condition.
● Secure the load properly. Air conditioning
He atin
g,

ventilation and cool-
ing
Introduction Read the additional information carefully
›› ›

 page 52
Viewing Climatronic information
On the screen of Climatronic control unit and
on the screen of the factory-fitted Easy Con-
nect 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 in-
terior.
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 stated in the Service Sched-
ule. WARNING
Reduced visibility through the windows in-
cr e

ases the risk of serious accidents.
● Always ensure that all windows are free of
ice and sno
w, and that they are not fogged,
so as to maintain good visibility of everything
outside.
● The maximum heat output required to de-
fros
t windows as quickly as possible is only
available when the engine has reached its
normal running temperature. Only drive when
you have good visibility.
● Always ensure that you use the heating
syst
em, fresh air system, air conditioner and
the heated rear window to maintain good visi-
bility 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 requir
ed. WARNING
Stuffy or used air will increase fatigue and re-
duce driv er c

oncentration possibly resulting
in a serious accident.
● Never leave the fresh air fan turned off or
use the air rec
irculation for long periods of
time; the air in the vehicle interior will not be
refreshed. » 173
Technical data
Advice
Operation
Emergencies
Safety

Operation
CAUTION
● Switc h the air c
onditioner 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 spe-
ciali
st knowledge and special tools. SEAT rec-
ommends visiting a SEAT Official Service. Note
● When the coolin g sy

stem is turned off, air
coming from the outside will not be dried. To
prevent fogging of the windows, SEAT recom-
mends leaving the cooling system (compres-
sor) turned on. To do this, press the  but-
ton. The button lamp should light up.
● The maximum heat output required to de-
frost
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
windsc
reen free of snow, ice and leaves to en-
sure heating and cooling are not impaired,
and to prevent the windows from misting
over. Operating the Climatronic through the
E
a
sy C

onnect* system 3 Applies to vehicles with a Media System
Touc h/C

olour.
In the Easy Connect system it is also possible
to perform various adjustments to the Clima-
tronic.
Open the air conditioner menu
● Press the  button on the Climatronic
contro l

panel.
● OR: press the  button in Easy Connect.
W ith the r
otatin

g switch select the air con-
ditioner menu and open it.
On the touch screen you can see and change
the current settings, for example, the temper-
ature set for the driver and passenger sides,
the air distribution and the fan speed.
To switch a function on or off, or to select a
submenu, you must press the corresponding
function button.
Function button: function
OFFSwitch off and switch on the Climatron-
ic.
SYNCSynchronise driver and front passenger
temperatures.
Function button: function
SETTINGS
The air conditioning settings submenu
is opened. The following settings can al-
so be adjusted:
Air conditioning profile. : Ad-
just the power of the fan in AUTO mode.
You can choose between low, medium
and high.
Automatic air recirculation :
Switching automatic air recirculation on
and off ››› page 176.
BACK : Close the submenu. Operating the Climatronic through the
E
a
sy C

onnect* system 3
Applie
s
to vehicles with Media System Plus/Navi
System/Navi System Plus. Fig. 189
Easy Connect screen: air conditioner
menu. 174

Air conditioning
In the Easy Connect system it is also possible
t o per
form
various adjustments to the Clima-
tronic ››› Fig. 189.
Open the air conditioner menu
● Press the  button on the Climatronic
c ontr
ol

panel.
On the top of the screen you can see and
change the current settings, such as, for ex-
ample, the temperature set for the driver side
and for that of passenger. Temperatures up
to +22°C (+72°F) are shown with blue arrows,
and temperatures over +22°C (+72°F) with
red arrows.
To switch a function on or off, or to select a
submenu, you must press the corresponding
function button.
Function button: function
OFFClimatronic is switched off.
ONClimatronic is switched on.
SYNCSynchronise driver and front passenger
temperatures.
Function button: function
SETTINGS
The air conditioning settings submenu
is opened. The following settings can al-
so be adjusted:
Air conditioning profile. : Ad-
just the power of the fan in AUTO mode.
You can choose between low, medium
and high.
Automatic air recirculation :
Switching automatic air recirculation on
and off ››› page 176.
Automatic supplementary heat-
er : Activate/deactivate the automatic
activation of the auxiliary heater for
colder countries (only for engines with
auxiliary heater). With the option deacti-
vated, depending on the outside tem-
perature the heating may need more
time than normal to reach a comfortable
temperature.
BACK : Close the submenu. Air conditioning user instructions
The interior cooling system only works when
the en
gine i
s ru

nning and fan is switched on.
The air conditioner operates most effectively
with the windows and the panoramic sliding
sunroof closed. However, if the vehicle has
heated up after standing in the sun for some
time, the air inside can be cooled more quick- ly by opening the windows and the panoram-
ic sliding s

unroof briefly.
Climatronic: change the temperature unit on
the screen of the radio or on the factory-fit-
ted navigation system
Changing the temperature display from Cel-
sius to Fahrenheit on radio or on the factory-
fitted navigation system is done using the
menu on the instrument panel
›››  page 36.
The cooling system cannot be activated
If the air conditioning system cannot be
switched on, this may be caused by the fol-
lowing:
● The engine is not running.
● The fan is switched off.
● The air conditioner fuse has blown.
● The outside temperature is lower than ap-
proxim
ately +3°C (+38°F).
● The air conditioner compressor has been
temporarily
switched off because the engine
coolant temperature is too high.
● Another fault in the vehicle. Have the air
conditioner check
ed by a specialised work-
shop.
Special Characteristics
If the humidity and temperature outside the
vehicle are high, condensation can drip off »
175
Technical data
Advice
Operation
Emergencies
Safety

Air conditioning
Air recirculation mode prevents the ambient
air fr om ent
erin
g the interior.
When the outside temperature is very high,
selecting manual air recirculation mode for a
short period refreshes the vehicle interior
more quickly.
For safety reasons, air recirculation mode is
switched off when the button  is press-
ed or the air distributor turned to .
Switching the manual air recirculation mode
on and off 
To switch system on: press the  button un-
til the warning lamp lights up.
To switch system off: press the  button un-
til the warning lamp goes off.
Functioning mode of automatic air recircula-
tion (air conditioning menu)
With the automatic air recirculation mode ac-
tivated, the entry of fresh air into the cabin
interior is enabled. If the system detects a
high concentration of hazardous substances
in the ambient air, air recirculation mode is
switched on automatically. When the level of
impurities drops to within a normal range, re-
circulation mode is switched off.
The system is unable to detect unpleasant
smells. The air recirculation will
not connect aut o-
matically in versions without humidity sensor
and in the following external conditions:
● The outside temperature is lower than +3°C
(+38°F).
● The cooling system is switched off and the
outside temper
ature is below +10°C (+50°F).
● The cooling system is switched off, the out-
side temper
ature is below +15°C (+59°F) and
the windscreen wipers are switched on.
Activation/deactivation of automatic air recir-
culation is done in the air conditioner menu,
under Configuration. WARNING
Observe the safety warnings ›››
in Intro-
duction on pag e 173
.
● If the cooling system is switched off and air
recir
culation mode switched on, the windows
can mist over very quickly, considerably limit-
ing visibility.
● Switch air recirculation mode off when it is
not requir
ed. CAUTION
Do not smoke when air recirculation is
swit c

hed on in vehicles with an air condition-
er. The smoke taken in could lie on the cool-
ing system vaporiser and on the activated
charcoal cartridge of the dust and pollen fil- ter, leading to a permanently unpleasant
smell
. Note
Climatronic: air recirculation mode is activa-
t ed t o pr

event exhaust gas or unpleasant
odours from entering the vehicle interior
when it is in reverse and while the automatic
windscreen wiper is working. 177Technical data
Advice
Operation
Emergencies
Safety

Operation
●
Dependin g on w
eather conditions, it may
become extremely hot or cold inside the vehi-
cle. This can be fatal. Brakes
New brake pads
For the fir
s

t 400 km (250 miles), new brake
pads have not yet reached their maximum
braking capacity, and need to be “run in”
first. However, you can compensate for the
slightly reduced braking effect by applying
more pressure on the brake pedal. Avoid
overloading the brakes while running them
in.
Wear
The rate of wear on the brake pads depends
a great deal on how you drive and the condi-
tions in which the vehicle is operated. This is
a particular problem in urban traffic and
short stretches, or with very sporty driving.
Depending on the speed, the braking force
and the environmental conditions (for exam-
ple, the temperature, air humidity, etc.)
noises may be produced on braking.
Wet roads or road salt
In certain situations (for example, on driving
through flooded areas, in severe downpours
or after washing the vehicle) the braking ac- tion could be delayed if the discs and pads
are d
amp

, or frozen in winter. In this case the
brakes should be “dried” by pressing the
brake pedal several times.
At high speed and with the windscreen wip-
ers activated, the brake pads will briefly
touch the brake discs. This takes place, al-
though unnoticeable to the driver, at regular
intervals to improve the response time of the
brakes when they are wet.
The effectiveness of the brakes can also be
temporarily reduced if the vehicle is driven
for some distance without using the brakes
when there is a lot of salt on the road in win-
ter. The layer of salt that accumulates on the
discs and pads can be removed by gently ap-
plying the brakes a few times.
Corrosion
There may be a tendency for corrosion to
form on the discs and dirt to build up on the
brake pads if the vehicle is used infrequently
or the brakes are not used very often.
If the brakes are not used frequently, or if
rust has formed on the disks, it is advisable
to clean off the pads and disks by braking
firmly a few times at a moderately high speed
››› .
F au
lt

in the brake system
If the brake pedal travel should ever increase
suddenly, this may mean that one of the two brake circuits has failed. Drive immediately
to the near

est specialised workshop and
have the fault repaired. Drive there slowly
and remember that you will have to apply
more pressure on the brake pedal and allow
for longer stopping distances.
Low brake fluid level
Malfunctions can occur in the brake system if
the brake fluid level is too low. The brake flu-
id level is monitored electronically.
Brake servo
The brake servo increases the pressure you
apply to the brake pedal. It works only when
the engine is running. WARNING
● App ly

the brakes heavily to clean the brake
system only in a suitable traffic situation. Do
not put other road users in danger: there is
risk of causing an accident.
● Ensure the vehicle does not move while in
neutral, when the en
gine is stopped. Failure
to follow this instruction could result in an
accident.
● If the brake fluid loses its viscosity and is
subj
ected to heavy use, vapour bubbles can
form in the brake system. This reduces the ef-
ficiency of the brakes. 186