2018 Seat Leon Headlight

The essentials
Fluid level control Filling capacities Tank level
Petrol and die-
sel engines
50 l, of which, approx. 7 l reserve
Four -wheel driv
e vehicles:
55 l, of which approx. 8,5 l re- serve
Natural gas en-
gine a)
approx. 15 kga)
The capacity depends on the efficacy and charac-
t eristics of the nat
ur

al gas pumps. The capacity indi-
cated is based on a minimum loading pressure of 200
bar.
Capacity of the windscreen washer fluid con-
tainer Versions with-
out headlight
washer syst
em appr

ox. 3 litres
Versions with
headlight
washer syst em appr

ox. 5 litres Fuel
Fig. 61
Fuel tank flap with tank cap attached. The flap that covers the tank cap is unlocked
and l
ock
ed aut

omatically using the central
locking.
Opening the fuel tank cap

The essentials
Connect the other end of the black
jump
l ead X to a solid metal component bol-
t ed t
o the engine bl
ock or to the engine
block itself of the vehicle with the flat
battery. Do not connect it to a point near
the battery A .
P osition the l
eads in such a w

ay that
they cannot come into contact with any
moving parts in the engine compart-
ment.
Starting Start the engine of the vehicle with the
boosting battery and let it run at idling
speed.
Start the engine of the vehicle with the
flat battery and wait for 2 or 3 minutes
until the engine is running.
Removing the jump leads Before you remove the jump leads,
switch off the dipped beam headlights if
they are switched on.
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 disconnected.
When the engine is running, disconnect
the leads in reverse order to the details
given above.
5.
6.
7.
8.
9.
10.
11.
Make sure the battery clamps have sufficient
metal-t

o-metal contact with the battery ter-
minals.
If the engine fails to start after about 10 sec-
onds, switch off the starter and try again after
about 1 minute. WARNING

Fuses and bulbs
No. Consumers/Amps
10 Radio display 7.5
11 Left lights 40
12 Radio 20
13 Taxis 5
14 Air conditioner fan 40
15 KESSY 10
16 Connectivity Box 7.5
17 Instrument panel, OCU 7.5
18 Rear camera 7.5
19 KESSY 7.5
20 SCR, engine relay, 1.5 10/15
21 4x4 Haldex Control Unit 15
22 Trailer 15
23 Sunroof 20
24 Right lights 40
25 Left door 30
26 Heated seats 20
27 Interior light 30
28 Trailer 25
32 Parking aid control unit, front cam-
er
a, r
adar 7.5 No. Consumers/Amps
33 Airbag 7.5
34 Reverse switch, clima sensor, elec-
trochromic mirr
or 7.5
35 Diagnosis, headlight control unit,
headlight adjuster 7.5
36 Right LED headlight 7.5
37

Left LED headlight 7.5
38 Trailer 25
39 Right door 30
40 12V socket 20
42 Central locking 40
43 Beats Audio CAN and MOST. 30
44 Trailer 15
45 Electric driver

Operation
Setting 1
All seats occupied, luggage compart-
ment empty
Setting 2 All seats occupied, luggage compart
-
ment full. With tr ail
er and minimum
drawbar load.
Setting 3 Driver only, luggage compartment full
Driving with trail
er and minimum
dr

awbar load. Dynamic headlight range control
The control is not mount
ed in v

ehicles with
dynamic headlight range control. The head-
light range is automatically adjusted accord-
ing to the vehicle load status when they are
switched on. WARNING
Heavy objects in the vehicle may mean
that the headlights dazzle and distr act oth-
er driv

ers. This could result in a serious ac-
cident.

Lights and visibility
To ensure the headlight washers work cor-
r ectly in wint
er
, any snow which has got into
the bumper jet supports should be cleaned
away. If necessary, remove snow with an an-
ti-icing spray. Note
The wiper will try to wipe away any obsta-
cles that ar e on the windscr

een. The wiper
will stop moving if the obstacle blocks its
path. Remove the obstacle and switch the
wiper back on again. Rain sensor*
Fig. 156
Windscreen wipers lever: adjust the
r ain sensor A . Fig. 157
Rain sensor sensitive surface The rain sensor controls the frequency of the
windscr
een wiper int
erv

als, depending on the
amount of rain

Driver assistance systems
to the presence of metallic objects (e.g. rails
on the r oad or sheets used in r
oad w
orks).
The area in front of and around the radar
sensor should not be covered with adhesives,
additional or similar headlights, as this may
negatively affect Front Assist operation.
If the front of the vehicle is not properly re-
paired or structural modifications are made
to it, for example if the suspension is lowered,
Front Assist operation may be affected. SEAT
recommends visiting a SEAT dealership for
this purpose. CAUTION
If you have the sensation that the radar
sensor is damaged or has lost its settings, disconnect the Fr ont Assist. This will av

oid
possible dangerous situations caused by a
system malfunction. If this occurs have it
adjusted.

Vehicle maintenance
Problem Solution
Care Apply preservative cream regu-
larly to pr
otect from sunlight.
Use a colour preservative if re-
quired a)
Neutral soap solution: two tablespoons maximum in
1 litre of w at

er
Carbon fibre parts Problem Solution
Dirt Clean like plastic partsTake special care with...
Headlights/tail lights

Index
Child seats cat egorisation int
o gr
oups . . . . . . . . . . . . . . . . . 82
ISOFIX system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
safety instructions . . . . . . . . . . . . . . . . . . . . . . 25, 80
securing with the seat belt . . . . . . . . . . . . . . . . . . 27
Top Tether system . . . . . . . . . . . . . . . . . . . . . . . 29, 31
Cleaning Alcantara leather . . . . . . . . . . . . . . . . . . . . . . . . . 348
carbon fibre . . . . . . . . . . . . . . . . . . . . . . . . . 347, 349
control panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
decorative sheets . . . . . . . . . . . . . . . . . . . . . . . . . 348
exhaust tail pipes . . . . . . . . . . . . . . . . . . . . . . . . . 347
exterior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 347
fabrics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 348
headlights / tail lights . . . . . . . . . . . . . . . . . . . . . 347
high pressure cleaners . . . . . . . . . . . . . . . . . . . . 345
Interior . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 348
leather . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 348
paint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 347
plastic parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 348
sensors/camera lenses . . . . . . . . . . . . . . . . . . . 347
special care . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 349
the radio screen . . . . . . . . . . . . . . . . . . . . . . . . . . 348
trims/covers . . . . . . . . . . . . . . . . . . . . . . . . . 347, 348
washing the vehicle . . . . . . . . . . . . . . . . . . . . . . . 345
wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 347
windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 348
windscreen wipers . . . . . . . . . . . . . . . . . . . . . . . . 347
Climatronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
43
Clocks analogue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
114
digital . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 114
set time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 114
Close . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . 127 Closing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 127
bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 323
panoramic sliding sunr
oof . . . . . . . . . . . . . . . . . 140
windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
138
Clutch (warning lamp) . . . . . . . . . . . . . . . . . . . . . . 256
Coming Home . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 146
Communication between the Infotainment system and mobile devices . . . . . . . . . . . . . . . . 191
Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191 Full Link . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 191
SEAT Media Control . . . . . . . . . . . . . . . . . . . . . . . 198
WLAN point of access . . . . . . . . . . . . . . . . . . . . . 199
Connectivity Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Control and warning lamps . . . . . . . . . . . . . . 39, 123 ABS anti-blocking system . . . . . . . . . . . . . . . . . 245
adaptive cruise control . . . . . . . . . . . . . . . . . . . . 276
airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 78
airbag system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330
applying the brake . . . . . . . . . . . . . . . . . . . . . . . . 276
ASR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245, 247
audible warning signal . . . . . . . . . . . . . . . . . . . . 123
blocking of the steering column . . . . . . . . . . . 258
brake systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
cruise control system (CCS) . . . . . . . . . . . . . . 269
depress the brake . . . . . . . . . . . . . . . . . . . . . . . . . 271
diesel preheating system . . . . . . . . . . . . . . . . . 262
EDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 245
electromechanical steering . . . . . . . . . . . . . . . 258
emission control . . . . . . . . . . . . . . . . . . . . . . . . . . 262
engine management . . . . . . . . . . . . . . . . . . . . . . 262
engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 325
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245, 247
gear change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 256
handbrake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242 instrument panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Lane Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 284
lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . .
143
particulate filter . . . . . . . . . . . . . . . . . . . . . . 262, 263
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 314
seat belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . 69
Start-Stop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
transmission . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249
tyre monitoring system . . . . . . . . . . . . . . . . . . . . 337
Control lamps engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Fuel reserve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
refuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . 117
Controls and displays general instrument panel . . . . . . . . . . . . . . . . . . 101
Controls for the windows . . . . . . . . . . . . . . . . . 18, 138
Controls on the steering wheel . . . . . . . . . . . . . . 124
Convenience closing panoramic sliding sunroof . . . . . . . . . . . . . . . . . 141
Convenience opening panoramic sliding sunroof . . . . . . . . . . . . . . . . . 141
Coolant checking level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 327
Cooling system checking coolant . . . . . . . . . . . . . . . . . . . . . . . . . 327
topping up coolant . . . . . . . . . . . . . . . . . . . . . . . . 327
Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . 203
Correct position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
64
Correct sitting position driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 64
front passenger . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
rear seat passengers . . . . . . . . . . . . . . . . . . . . . . 66
Cruise control . . . . . . . . . . . . . . . . . . . . . . . . . . . 40, 269 control and warning lamps . . . . . . . . . . . . . . . 269
operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 270
373