2018 Seat Leon fuel pressure

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

Driving
Foresight when driving
Accel er
ation causes the v
ehicle to consume
more fuel. If you think ahead when driving,
you will need to brake less and thus acceler-
ate less. Wherever possible, let the car roll
slowly to a stop, with a gear engaged (for in-
stance when you can see that the next traffic
lights are red). This takes advantage of the
engine braking effect, reducing wear on the
brakes and tyres. Emissions and fuel con-
sumption will drop to zero due to the overrun
fuel cut-off.
Changing gear to save energy
An effective way of saving is to change in ad-
vance to a higher gear. Running the engine at
high rpm in the lower gears uses an unneces-
sary amount of fuel.
Manual transmission: shift up from first to
second gear as soon as possible. In any case,
we recommend that you change to a higher
gear upon reaching 2,000 rpm. Choosing the
right gear enables fuel savings. Select the
highest possible gear appropriate for the
driving situation (the engine should continue
functioning with cyclical regularity).
Automatic transmission: accelerate gradu-
ally and without reaching the “kick-down”
position. Avoid driving at high speed
Avoid trav
elling at top speed, whenever pos-
sible. Fuel consumption, emission of harmful
gases and noise pollution multiply dispropor-
tionately as speed is increased. Driving at
moderate speeds will help to save fuel.
Reduce idling time
In vehicles with the Start-Stop system idling is
automatically reduced. In vehicles without
the Start-Stop system it is worth switching off
the engine, for example, at level crossings
and at traffic lights that remain red for long
periods of time. When an engine has reached
operating temperature, and depending on
the cylinder capacity, keeping it switched off
for a minimum of about 5 seconds already
saves more than the amount of fuel necessa-
ry for restarting.
The engine takes a long time to warm up
when it is idling. Mechanical wear and pollu-
tant emissions are also especially high during
this initial warm-up phase. It is therefore best
to drive off immediately after starting the en-
gine. Avoid running the engine at high speed.
Regular maintenance
Regular servicing helps in saving fuel even
before the engine is started. A well-serviced
engine gives you the benefit of improved fuel
efficiency as well as maximum reliability and
an enhanced resale value. A badly serviced engine can consume up to 10% more fuel
than necessary.
Avoid short journeys
The engine and cat
alytic converter need to
reach their optimal operating temperature
in order to minimise fuel consumption and
emissions.
A cold engine consumes a disproportionate
amount of fuel. The engine reaches its work-
ing temperature after about four kilometres
(2.5 miles), when fuel consumption will return
to a normal level.
Check tyre pressure
Always make sure the tyres are inflated to the
correct pressures

Practical tips
Do not forget the spare wheel when checking
the t yr
e pr
essures: Keep this spare wheel in-
flated to the highest pressure required for the
road wheels.
In the case of a minimised temporary spare
wheel (125/70 R16 or 125/70 R18) inflate to a
pressure of 4.2 bar as indicated on the tyre
pressure label on the fuel tank flap.
Driving style
Fast cornering, heavy acceleration and hard
braking (squealing tyres) all increase tyre
wear.
Wheel balance
The wheels on new vehicles are balanced.
However, certain circumstances may lead to
imbalance (run-out), which is detected as vi-
brations in the steering wheel.
Unbalanced wheels should be rebalanced,
as they otherwise cause excessive wear on
steering, suspension and tyres. A wheel must
also be rebalanced when a new tyre is fitted
or if a tyre is repaired.
Incorrect wheel alignment
Incorrect running gear alignment causes ex-
cessive tyre wear, impairing the safety of the
vehicle. If you notice excessive tyre wear, you
should check wheel alignment at a SEAT Of-
ficial Service. WARNING

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

Index
Electronic Stability Control (ESC) . . . . . . . . . . . 245
El ectr
onic t
orque management (XDS) . . . . . . . 246
Emergencies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 83 anti-puncture kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
automatic gearbox emergency program . . 256
bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . 52
changing a wheel . . . . . . . . . . . . . . . . . . . . . . . . . . 54
emergency towing of the vehicle . . . . . . . . . . . 58
fuses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . 51
hazard warning lights . . . . . . . . . . . . . . . . . . . . . 148
jump leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
manual unlocking and locking . . . . . . . . . . . . . . 85
puncture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
replacing a blown fuse . . . . . . . . . . . . . . . . . . . . . . 51
replacing the battery . . . . . . . . . . . . . . . . . . . . . . 331
vehicle tool kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Emergency Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . 288 switching off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
switching on . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 288
Emergency braking assistance system indications on the display . . . . . . . . . . . . . . . . . . 271
malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 272
operating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 273
radar sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 272
switching off temporarily . . . . . . . . . . . . . . . . . . 274
system limitations . . . . . . . . . . . . . . . . . . . . . . . . . 274
Emergency braking function . . . . . . . . . . . . . . . . 243
Emergency braking warning . . . . . . . . . . . . . . . . . 148
Emergency operation front passenger door . . . . . . . . . . . . . . . . . . . . . . . 16
selector lever . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Emission control system catalytic converter . . . . . . . . . . . . . . . . . . . . . . . . 263
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
particulate filter . . . . . . . . . . . . . . . . . . . . . . . . . . . 263 Emissions data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Engine
assisted starting . . . . . . . . . . . . . . . . . . . . . . . . . . . .
59
noises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 239
preheating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
235
running in . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 258
starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 235
starting up (driver messages with the me- chanical contact) . . . . . . . . . . . . . . . . . . . . . . . 235
switching off (key) . . . . . . . . . . . . . . . . . . . . . . . . . 236
Engine and ignition automatic ignition switch-off . . . . . . . . . . . . . . 237
My Beat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 240
preheating the engine . . . . . . . . . . . . . . . . . . . . 238
starting the engine . . . . . . . . . . . . . . . . . . . . . . . . 238
starting the engine with Press & Drive . . . . . 238
stopping the engine . . . . . . . . . . . . . . . . . . . . . . . 239
Engine breakdown Control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Engine compartment . . . . . . . . . . . . . . . . 18, 322, 324 battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50, 329
brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49, 328
coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49, 327
engine oil . . . . . . . . . . . . . . . . . . . . 47, 324, 325, 326
opening and closing . . . . . . . . . . . . . . . . . . . . . . 323
safety notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 322
windscreen washer reservoir . . . . . . . . . . 50, 329
Engine coolant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
G 12 plus-plus . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 49
G 13 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . 49
specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 49
temperature display . . . . . . . . . . . . . . . . . . . . . . . 118
warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118
Engine data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 358 Engine management . . . . . . . . . . . . . . . . . . . . . . . . 262
control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. 47, 324 changing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324, 326
checking oil level . . . . . . . . . . . . . . . . . . . . . . . . . . 325
consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
dipstick . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 325
inspection service . . . . . . . . . . . . . . . . . . . . . . . . . 324
maintenance intervals . . . . . . . . . . . . . . . . . . . . 324
oil properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
specifications . . . . . . . . . . . . . . . . . . . . . . . . . 48, 324
topping up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. 326
Engine oil pressure control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 325
Enlarging the boot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . 159
Environment ecological driving . . . . . . . . . . . . . . . . . . . . . . . . . 259
environmental compatibility . . . . . . . . . . . . . . 259
Environmental tips filling the tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 315
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . 314
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163, 313
ESC electronic stability control . . . . . . . . . . . . . . . . 245
Multi-collision Brake . . . . . . . . . . . . . . . . . . . . . . 246
Sport Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
247
Ethanol (fuel) . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . 318
Event Data Recorder . . . . . . . . . . . . . . . . . . . . . . . . 351
Exhaust purification system for vehicles with diesel engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 320
Exterior lighting changing bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Exterior mirrors adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . 21
375