2015 Seat Leon SC headlights

The essentials
● Rep
l
ace the cover again or close the fuse
box lid.
Bulbs Bul
bs (12 V)
Light source used for each function
Halogen headlightsType
Daytime driving light/side lightP21W SLL
Dipped beam headlightsH7 LL
Main beam headlightsH7 LL
Turn signalPY21W LL
Full-LED main headlightsType
No bulbs may be replaced. All functions are with LEDs
Front fog lightType
Fog/cornering lights*H8
Rear lightsType
Brake light/tail lightP21W LL
Side lights2x W5W LL
Turn signalPY21W LL
Retro fog lightH21W
Rear lightsType
Reverse lightsP21W LL
LED rear lightsType
Turn signalPY21W LL
Retro fog lightH21W
Reverse lightsP21W LL
The remaining functions work with LEDs 
›››
page 94 Action in the event of a punc-
t
ur
e
Wh

at to do first ●
Park the vehicle on a horizontal surface
and in a s af
e p

lace as far away from traffic as
possible.
● Apply the handbrake.
● Switch on the hazard warning lights.
● Manual gearbox: select the 1s
t gear.
● Automatic gearbox: Move the sel
ector lever
to position P.
● If you are towing a trailer, unhitch it from
your v
ehicle. ●
Have the v
ehicle tool kit ›››
 page 86
and the spare wheel* ready
›››  page 262.
● Observe the applicable legislation for each
countr
y (reflective vest, warning triangles,
etc.).
● All occupants should leave the vehicle and
wait in a s
afe place (for instance behind the
roadside crash barrier). WARNING
● Alw a

ys observe the above steps and pro-
tect yourself and other road users.
● If you change the wheel on a slope, block
the wheel on the oppo
site side of the car with
a stone or similar to prevent the vehicle from
moving. 56

The essentials
Jump leads must comply with standard DIN
72553 (see c ab
l
e manufacturer's instruc-
tions). The wire cross section must be at least
25 mm 2
for petrol engines and at least
35 mm 2
for diesel engines. Note
● The v ehic

les must not touch each other,
otherwise electricity could flow as soon as
the positive terminals are connected.
● The discharged battery must be properly
connected t
o the on-board network. How to jump start: description
Fig. 78
Diagram of connections for vehicles
w ithout


Start Stop system Fig. 79
Diagram of connections for vehicles
with St

art Stop system Jump lead terminal connections
1. Switch off the ignition of both vehicles
››
›

.
2. Connect one end of the re
d
jump lead to
the positive + terminal of the vehicle
w ith the fl
at
battery A
› ›
› Fig. 78 .
3. Connect the other end of the red
jump
lead to the positive terminal + in the ve-
hic l
e pr
oviding assistance B .
4. For vehicles without Start-Stop system:
connect
one end of

the black jump lead to
the negative terminal – of the vehicle
pr o
v

iding the current B
› ›
› Fig. 78 .
– For vehicles with Start-Stop system: con-
nect one end of
the black jump lead X to a
s uit
ab
le ground terminal, to a solid piece of
metal in the engine block, or to the engine
block itself ››› Fig. 79. 5. Connect the other end of the
black
jump
lead X to a solid metal component bolted
t o the en
gine b
lock or to the engine block
itself of the vehicle with the flat battery.
Do not connect it to a point near the bat-
tery A .
6. Position the leads in such a way that they cannot
c

ome into contact with any moving
parts in the engine compartment.
Starting
7. Start the engine of the vehicle with the boostin
g battery and let it run at idling
speed.
8. Start the engine of the vehicle with the flat batter
y and wait for 2 or 3 minutes until
the engine is running.
Removing the jump leads
9. Before you remove the jump leads, switch off the dipped be
am headlights if they are
switched on.
10.
Turn on the heater blower and heated rear
window in the vehicle with the flat battery.
This helps minimise voltage peaks which
are generated when the leads are discon-
nected.
11.When the engine is running, disconnect the lea
ds in reverse order to the details
given above. » 63

Emergencies
Note
● In the v ehic
le, there are more fuses than
those indicated in this chapter. These should
only be changed by a specialised workshop.
● Positions not containing a fuse do not ap-
pear in the fo
llowing tables.
● Some of the equipment listed in the tables
below pert
ain only to certain versions of the
model or are optional extras.
● Please note that the above lists, while cor-
rect at
the time of printing, are subject to
change. Bulbs
Ch an
gin

g a bulbRead the additional information carefully
› ›
›

 page 56.
Changing bulbs requires a certain degree of
practical skill.
If you choose to change the engine compart-
ment lamps yourself, remember that it is a
dangerous area ››› in Work in the engine
c omp
ar

tment on page 246.
Always use identical bulbs with the same
designation. The name can be found on the
base of the bulb holder. Depending on how equipped the vehicle is,
there are diff

erent sets of headlights and tail
lights:
● Halogen headlights
● Full-LED main headlights*
● Rear bulb light
● LED rear light*
Ful
l-LED headlight system*
Full-LED headlights handle all light functions
(daylight, side light, turn signal, dipped
beam and route light) with light emitting di-
odes (LEDs) as a light source.
Full-LED headlights are designed to last the
lifetime of the car and light bulbs cannot be
replaced. In case of headlight failure, go to
an authorised workshop to have it replaced. WARNING
● Tak e p

articular care when working on com-
ponents in the engine compartment if the en-
gine is warm. Risk of burns.
● Bulbs are highly sensitive to pressure. The
glas
s can break when you touch the bulb,
causing injury.
● When changing bulbs, please take care not
to injure
yourself on sharp edges, in particu-
lar on the headlight housing. CAUTION
● Remo v

e the ignition key before working on
the electric system. Otherwise, a short circuit
could occur.
● Switch off the lights and the parking light
before c
hanging a bulb.
● Take good care to avoid damaging any com-
ponents. For the sake of the environment
Please ask your specialist retailer how to dis-
pose of u

sed bulbs in the proper manner. Note
● Ple a

se check at regular intervals that all
lighting (especially the exterior lighting) on
your vehicle is functioning properly. This is
not only in the interest of your own safety,
but also that of all other road users.
● Before changing a bulb, make sure you
have the c
orrect new bulb.
● Do not touch the glass part of the bulb with
your bar
e hands, use a cloth or paper towel
instead, since the fingerprints left on the
glass will vaporise as a result of the heat gen-
erated by the bulb, they will be deposited on
the reflector and will impair its surface. 94

Fuses and bulbs
Changing bulbs in headlight
u nit
Dip ped he
adlight bulbFig. 103
Dipped beam headlights. Fig. 104
Dipped beam headlights. –
Raise the bonnet.
– Move the loops ››
›
Fig. 103 1 in the direc-
tion of the arr
o
w and remove the cover. –
Remov
e connector ››› Fig. 104 2 from the
b u
l
b.
– Unclip the retainer spring ›››
Fig. 104 3 pressing inwards to the right.
– Extract the bulb and fit the replacement so
th at
the lug on the b

ase fits into the recess
on the reflector.
Day light bulb Fig. 105
Day light bulb. –
Raise the bonnet.
– Turn the bulb holder ››
›
Fig. 105 1 to the
l ef
t
and pull.
– Remove the bulb by pressing on the bulb
holder and t

urning it anti-clockwise at the
same time.
– Installation involves all of the above steps
in rever

se sequence. Turn signal bulb
Fig. 106
Turn signal bulb. Fig. 107
Turn signal bulb. –
Raise the bonnet.
– Move the loop ››
›
Fig. 106 1 in the direc-
tion of the arr
o
w and remove the cover.
– Turn the bulb holder ›››
Fig. 107 2 anti-
c loc
k
wise and pull. »
95
Technical data
Advice
Operation
Emergencies
Safety

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

locking switch . . . . . . . . . . . .119
Electric control to adjust exterior
mirrors . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Air outl

ets . . . . . . . . . . . . . . . . . . . . . . . . 162
Control lever for:
– Turn s ign

als and main beam
headlights . . . . . . . . . . . . . . . . . . . . . 129
– Lane Ass i

st . . . . . . . . . . . . . . . . . . . . . 202
– Main beam a
ssist . . . . . . . . . . . . . . . 130
– Cruise c
ontrol system (CCS) . . . . .185
Depending on equipment fitted:
– Lev er f

or cruise control . . . . . . . . . .185
Steering wheel with horn and – Driver airbag . . . . . . . . . . . . . . . . . . . 17
– On-boar d c

omputer controls . . . .31
– Contro
ls for radio, telephone,
navigation and speech dialogue
system ›››
Booklet Radio
– Paddle levers for tiptronic gear-
shift (automatic gearbox) . . . . . . .170
Instrument panel . . . . . . . . . . . . . . . . . 104
1 2
3
4
5
6
7
8 Control lever for:
– Wind
s

creen wipers and washer . .136
– Wipe and wa
sh system . . . . . . . . . . 136
– On-board c
omputer . . . . . . . . . . . . . 31
Depending on equipment fitted: ra-
dio or disp
lay for Easy Connect
(navigation, radio, TV/video) . . . . . .110
Depending on the equipment, but-
tons
for:
– SEAT driving modes . . . . . . . . . . . . .204
– Star t

-Stop system . . . . . . . . . . . . . . . 183
– Park a
ssist system . . . . . . . . . . . . . . 211
– Hazard w
arning lights . . . . . . . . . .133
– Tyr
e pressure switch . . . . . . . . . . . .261
– Airbag off di
splay . . . . . . . . . . . . . . . 82
Depending on the equipment,
glov e c

ompartment with: . . . . . . . . .146
– CD pl a

yer* and/or SD card*
››› Booklet Radio
Tyre pressure switch . . . . . . . . . . . . . .261
Front passenger airbag switch . . . .82
Front passenger airbag . . . . . . . . . . .17
Passenger seat heating control . . . .142
USB/AUX-IN input . . . . . . . . . . . . . . . . 115
Depending on equipment fitted,
ge ar l

ever or selector lever for:
– Manual gearbox . . . . . . . . . . . . . . . . 167
– Autom atic

gearbox . . . . . . . . . . . . . 167
9
10
11
12
13
14
15
16
17
18 Depending on the equipment, con-
tr
o
l

s for:
– Heating and ventilation system or
manual air conditioner . . . . . . . . . .49, 47
– Automatic
air conditioner . . . . . . .45
Parking brake . . . . . . . . . . . . . . . . . . . . 166
Driver seat heating control . . . . . . . .142
Ignition lock . . . . . . . . . . . . . . . . . . . . . . 164
Knee airbag . . . . . . . . . . . . . . . . . . . . . . 19
Adjustable steering column . . . . . . .17
Storage compartment
Bonnet lock
release . . . . . . . . . . . . . . . 247
Headlight range control . . . . . . . . . . .134
Headlight switch . . . . . . . . . . . . . . . . . 128
Electric windows . . . . . . . . . . . . . . . . . 124 Note
● Some of the equipment li

sted in this sec-
tion is only fitted on certain models or are op-
tional extras.
● A separate Instructions Manual is enclosed
if the v
ehicle is equipped with a factory-fitted
radio, CD player, AUX IN connection or navi-
gation system.
● The arrangement of switches and controls
on right-hand driv
e models* may be slightly
different from the layout shown in
››› page 102. However, the symbols used to
identify the controls are the same. 19
20
21
22
23
24
25
26
27
28
29
103
Technical data
Advice
Operation
Emergencies
Safety

Lights and visibility
●
Alw a
ys use your dipped beam head lights if
it is raining or if visibility is poor. WARNING
If the headlights are set too high and not
u sed c orr

ectly, there is a risk of dazzling or
distracting other road users. This could result
in a serious accident.
● Always make sure that the headlights are
correctly
adjusted. Daytime running lights
The daytime driving lights consist of individu-
al
lights, int
e

grated in the front headlights.
With the daylight driving lights on, only these
lights switch on ››› .
The d a
ytime driv

ing lights switch on every
time the ignition is switched on, if the switch
is in positions  or , according to the level
of exterior lighting.
When the light switch is in position , a
light sensor automatically switches dipped
beam on and off (including the control and
instrument lighting) or the daytime driving
lights depending on the level of exterior
lighting. WARNING
● Never driv e w

ith daytime lights if the road
is not well lit due to weather or lighting con-
ditions. Daytime lights do not provide
enough light to illuminate the road properly
or be seen by other road users.
● The rear lights do not come on with the
daytime driv
ing light. A vehicle which does
not have the rear lights on may not be visible
to other drivers in the darkness, in the case
of heavy rain or in conditions of poor visibili-
ty. Turn signal and main beam lever
Read the additional information carefully
› ›
›

 page 26
Push the lever all the way down to turn off
the corresponding function.
Convenience turn signals
For the convenience turn signals, move the
lever as far as possible upwards or down-
wards and release the lever. The turn signal
will flash three times.
The convenience turn signals are activated
and deactivated in the Easy Connect system
via the  key and the
Set
up function button
› ›
›

page 110. In vehicles that do not have the correspond-
ing menu, this

function can be deactivated in
a specialised workshop. WARNING
Improper or lack of use of the turn signals, or
for g

etting to deactivate them can confuse
other road users. This could result in a seri-
ous accident.
● Always give warning when you are going to
chan
ge lane, overtake or when turning, acti-
vating the turn signal in good time.
● As soon as you have finished changing
lane, ov
ertaking or turning, switch the turn
signal off. WARNING
Incorrect use of the headlights may cause ac-
cident s

and serious injury, as the main beam
may distract or dazzle other drivers. Note
● If the c on

venience turn signals are operat-
ing (three flashes) and the other convenience
turn signals are switched on, the active part
stops flashing and only flashes once in the
new part selected.
● The turn signal only works when the igni-
tion is sw
itched on. The hazard warning
lights also work when the ignition is switch-
ed off. » 129
Technical data
Advice
Operation
Emergencies
Safety

Operation
●
If a tr ai
ler turn signal malfunctions, the
control lamp will stop flashing (trailer turn
signals) and the vehicle turn signal will flash
at double speed.
● The main beam headligh
ts can only be
switched on if the dipped beam headlights
are already on.
● In cold or damp weather conditions, the
headlight
s, tail lights and turn signals may
mist up inside temporarily. This is normal and
in no way effects the useful life of the vehicle
lighting system. Automatic dipped beam control


*The automatic dipped beam control is merely
int
ended a
s

an aid and is not able to recog-
nise all driving situations.
When the light switch is in position , the
vehicle lights and the instrument panel and
switch lighting switch on and off automatical-
ly in the following situations ››› in Daytime
ru nnin
g light

s on page 129:
Automatic switching
onAutomatic switching
off
The photo sensor detects
darkness, for example,
when driving through a
tunnel.When adequate lighting is
detected.
Automatic switching
onAutomatic switching
off
The rain sensor detects
rain and activates the
windscreen wipers.When the windscreen wip-
ers have been inactive for
a few minutes. WARNING
If the road is not well lit and other road users
cannot see the

vehicle well enough or at all,
accidents may occur.
● The automatic dipped beam control ( )
only sw
itches on the dipped beam when
there are no changes in brightness, and not,
for example when it is foggy. Main beam assist*


››
›

table on page 2
Main beam assist (Light Assist)
The main beam assist acts within the limits
of the system and depending on environmen-
tal and traffic conditions. Once switched on,
the system is activated as of a speed of
about 60 km/h (37 mph) and is deactivated
below about 30 km/h (18 mph) ››› .
When the sy s
t

em is activated and the camera
detects other vehicles that may be dazzled,
the main beam is automatically switched off.
Otherwise, the main beam is automatically
switched on. The main beam assist generally detects illu-
minated ar

eas and deactivates the main
beam when passing through a town, for ex-
ample.
Switching the main beam assist on and off
Func-
tionAction
Acti-
vate:

– Switch the ignition on and turn the light
switch to position .
– From the base position, move the main
beam and turn signal lever forwards
››› page 129. When the warning lamp
 is
displayed on the instrument panel display,
the main beam assist is switched on.
To
switch
system off:
– Switch off the ignition.
– OR: turn the light switch to a different posi-
tion to
 ››› page 128.
– OR: with main beam on, move the main
beam and turn signal lever backwards.
– OR: move the main beam and turn the sig-
nal lever forwards to manually switch the
main beam on. The main beam assist will then
be deactivated. Malfunctions
The f
o
l

lowing conditions may prevent the
main beam headlight control from turning off
the headlights in time or from turning off al-
together:
● In poorly lit towns with highly reflective
signs.
130

Lights and visibility
● Other in s
uffic
iently lit road users (such as
pedestrians or cyclists).
● On tight bends and steep slopes (bumps)
and when oncoming
vehicles are partially ob-
scured.
● When the drivers of other oncoming vehi-
cle
s (such as a truck) can see over a guard
rail in the centre of the road.
● If the camera is damaged or the power sup-
ply i
s cut off.
● In fog, snow and heavy rain.
● With dust and sand turbulence.
● With loose gravel in the field of vision of
the camera.
● When the fiel

d of vision of the camera is
mist
ed up, dirty or covered by stickers, snow,
ice, etc. WARNING
The convenience features of the main beam
as s

ist should not encourage the taking of
risks. The system is not a replacement for
driver concentration.
● You are always in control of the main beam
and adaptin
g it to the light, visibility and traf-
fic conditions.
● It is possible that the main beam headlight
contro
l does not recognise all driving situa- tions and is limited under certain circumstan-
ce
s.
● When the fiel

d of vision of the camera is
dirty, c
overed or damaged, operation of the
main beam control may be affected. This also
applies when changes are made to the vehi-
cle lighting system, for example, if additional
headlights are installed. CAUTION
To avoid affecting the operation of the sys-
t em, t ak

e the following points into considera-
tion:
● Clean the field of vision of the camera regu-
larly and m
ake sure it is free of snow and ice.
● Do not cover the field of vision of the cam-
era.
● Check

that the windscreen is not damaged
in the area of
the field of vision of the camera. Note
Main beam and headlight flasher can be
turned on and off m

anually at any time with
the turn signal and main beam lever
››› page 129. Fog lights
The warning lamps
 or  also sho w
, on the
light switch or instrument panel, when the
fog lights are on.
● Switching on front fog lights* : pul
l the
light switch to the first point 1 , from posi-
tions 
,  or .
● Switching on the rear fog light : com-
pl

etely pull the light switch 2 from position
,  or  .
● T
o switch off the fog lights, press the light
swit c

h or turn it to position .
Cornering lights* 1) When turning slowly or on very tight bends,
the c
ornerin
g lights

are activated automati-
cally. The cornering lights may be integrated
in the fog lights and are switched on only at
speeds of less than 40 km/h (25 mph).
When reverse gear is engaged, the cornering
lights on both sides of the vehicle switch on,
in order to better illuminate the area for park-
ing. 1)
This function is not available on vehicles equipped
with f u

ll-LED headlights. 131
Technical data
Advice
Operation
Emergencies
Safety