2016 Seat Leon 5D octane

Advice
Before r efuelling, the engine and the igni-
tion, mo b
ile telephone and heating must be
switched off separately ››› .
R e
a

d the instructions on how to use the natu-
ral gas pump carefully.
The vehicle is not prepared for refuelling with
liquefied natural gas (LNG) ››› . Before refu-
el lin
g w

ith natural gas, make sure you add
the appropriate type of fuel ››› page 258.
Opening the fuel tank cap
The natural gas filler mouth is behind the fuel
tank cap, next to the petrol filler mouth.
● Unlock the vehicle with the key or with the
central
locking button  situated on the driv-
er door ››
›
page 116.
● Press on the rear area of the flap and open
it.
Ref

uelling
Special feature: if the ambient temperature is
very high, the natural gas pump protection
against overheating disconnects this auto-
matically.
● Remove the plug from the gas filler mouth
›››
Fig. 239 1 .
● Connect the pump filling nozzle to the gas
fi l
l

er mouth.
● The fuel tank will be full when the p
ump
compressor automatically cuts the supply. ●
If y
ou wish to finish refuelling in advance,
press the button on the pump to stop the
flow.
Closing the fuel tank cap
● Check that the gas filler mouth retainer 2 is not trapped with the filler nozzle. If neces-
s
ar
y

, place it in the filler mouth again.
● Insert the plug in the filler mouth.
● Close the tank flap. Make sure you hear it
click
into place. WARNING
Natural gas is a highly explosive, easily flam-
mab l

e substance. Incorrect handling of the
natural gas can cause accidents serious
burns and other injuries.
● Before refuelling with natural gas, engage
the fillin
g mouth correctly. If you can smell
gas, stop refuelling immediately. WARNING
The vehicle is not prepared to use liquefied
nat ur

al gas (LNG), and this fuel must not be
added under any circumstances. Liquefied
natural gas can cause the natural gas tank to
explode, resulting in serious injury. Note
● The fil lin

g nozzles of natural gas pumps
can differ in the way they are operated. If you do not know, ask a qualified employee at the
petro
l

station to do the refuelling.
● Noises heard when refuelling are normal
and do not indicat
e the presence of a fault in
the system.
● The vehicle natural gas system is prepared
both for ref
uelling with a small compressor
(slow refuel) and a large compressor (fast re-
fuel) in natural gas service stations. Fuel
Ty
pe

s of petrol The correct grade of petrol is listed inside the
f
uel
t

ank flap.
The vehicle is equipped with a catalytic con-
verter and must only be run on unleaded pet-
rol. The petrol must comply with European
Standard EN 228 or German standard DIN
51626-1 and must be unleaded. You can re-
fuel with a maximum ethanol proportion of
10 % (E10). The types of petrol are differenti-
ated by their octane rating (RON).
The following titles appear on the corre-
sponding adhesive on the fuel tank flap:
258

Checking and refilling levels
Super unleaded 95 octane or normal 91 oc-
t ane u
n
leaded petrol
We recommend you use super 95 octane pet-
rol. If this is not available: normal 91 octane
petrol, with a slight decrease in power.
Super unleaded petrol with a minimum of 95
octanes
You should use super petrol with a minimum
of 95 octanes.
If super is not available, in an emergency you
may refuel with normal 91 octane petrol. In
this case only use moderate engine speeds
and a light throttle. Refuel with super as soon
as possible.
Super unleaded 98 octane or super 95 oc-
tane unleaded petrol
We recommend you use super plus 98 octane
petrol. If this is not available: super 95 oc-
tane petrol, with a slight decrease in power.
If super is not available, in an emergency you
may refuel with normal 91 octane petrol. In
this case only use moderate engine speeds
and a light throttle. Refuel with super as soon
as possible.
Petrol additives
The quality of the fuel influences the behav-
iour, power and service life of the engine.
This is why the petrol you use should carry
suitable additives already included by the petrol industry, free of metals. These addi-
tives
will help to prevent corrosion, keep the
fuel system clean and prevent deposits from
building up in the engine.
If good-quality petrol with metal-free addi-
tives is not available or engine problems
arise, the necessary additives must be added
when refuelling ››› .
Not al
l

petrol additives have been shown to
be effective. The use of unsuitable petrol ad-
ditives may cause significant damage to the
engine and the catalytic converter. Metal ad-
ditives should never be used. Metal additives
may also be contained in petrol additives for
improving anti-detonation ratings or octane
ratings ››› .
S EA
T r

ecommends “genuine Volkswagen
Group Fuel Additives for petrol engines”.
These additives can be bought at SEAT deal-
ers, where information on how to use them
can also be obtained. CAUTION
● Do not r ef

uel if the filler indicates that the
fuel contains metal. LRP ( lead replacement
petrol) fuels contain high concentrations of
metal additives. Using them may damage the
engine!
● Never refuel with fuels containing a large
proportion of
ethanol (for example, E50, E85).
This could damage the fuel system. ●
Jus t

filling one full tank of leaded fuel or
fuel containing other metal additives would
seriously impair the efficiency of the catalytic
converter.
● Only use fuel additives that have been ap-
prov
ed by SEAT. Octane boosting or anti-
knock additives may contain metal additives
that could seriously damage the engine or
the catalytic converter. These additives must not be used.
● High engine speed and full throttle can
damag
e the engine when using petrol with an
octane rating lower than the correct grade for
the engine. Note
● You m a

y use petrol with a high octane num-
ber than the one recommended for your en-
gine.
● In those countries where unleaded petrol is
not avai
lable, you may refuel with a fuel with
a low lead content. Diesel fuel
Please note the information on the inside of
the f
uel
t

ank flap.
We recommend the use of diesel fuel which
complies to European standard EN 590. If
diesel fuel which meets European standard
EN 590 is not available, the Cetane number
(CZ) must, at minimum, be 51. If the engine »
259
Technical data
Advice
Operation
Emergencies
Safety

Technical specifications
Technical data
T ec
hnic
al specifications
Important The information in the vehicle documentation
alwa
y

s takes precedence over the informa-
tion in this Instruction Manual.
All technical specifications provided in this
documentation are valid for the standard
model in Spain. The vehicle data card inclu-
ded in the Maintenance Programme or the
vehicle registration documents shows which
engine is installed in the vehicle.
The figures may be different depending
whether additional equipment is fitted, for
different models, for special vehicles and for
other countries. Abbreviations used in the Technical Specifi-
cation
s

section
kWKilowatt, engine power measurement.
PSPferdestärke (horsepower), formerly used
to denote engine power.
rpmRevolutions per minute - engine speed.
NmNewton metres, unit of engine torque.
CZCetane number, indication of the diesel
combustion power.
RONResearch octane number, indication of
the knock resistance of petrol. Vehicle identification data
Fig. 250
Vehicle data sticker (luggage com-
p ar tment). Fig. 251
Chassis number. VIN in the Easy Connect
– Select: button 
 > function button SETUP
> Service > Chassis number .
Ch a
s

sis number
The VIN is located in the Easy Connect, on the
vehicle data sticker and under the wind-
screen, on the driver side ››› Fig. 251. Addi-
tionally, the chassis number is located in the
engine compartment, on the right-hand side.
The number is engraved on the top side rail,
and is partially covered.
Type plate
The type plate is located on the right side
door pillar. Vehicles for certain export coun-
tries do not have a type plate.
Vehicle data sticker
The vehicle data sticker is under the carpet
trim in the luggage compartment, in the »
281
Technical data
Advice
Operation
Emergencies
Safety

Index
Lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24, 131 audib l
e s
ignals . . . . . . . . . . . . . . . . . . . . . . . . . 131
AUTO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132
changing a bulb . . . . . . . . . . . . . . . . . . . . . . . . . 93
coming home . . . . . . . . . . . . . . . . . . . . . . . . . . 134
cornering lights . . . . . . . . . . . . . . . . . . . . . . . . 134
daytime running lights . . . . . . . . . . . . . . . . . . . 131
dipped beam headlight . . . . . . . . . . . . . . . . . . 131
fog light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134
hazard warning lights . . . . . . . . . . . . . . . . . . . . 25
headlight range control . . . . . . . . . . . . . . . . . . 137
interior lights . . . . . . . . . . . . . . . . . . . . . . . . . . 138
leaving home . . . . . . . . . . . . . . . . . . . . . . . . . . 135
light control . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
lighting of the instruments . . . . . . . . . . . . . . . 137
lighting of the switches . . . . . . . . . . . . . . . . . . 137
main beam lever . . . . . . . . . . . . . . . . . . . . . . . . 131
main beam lights . . . . . . . . . . . . . . . . . . . . . . . 131
main beams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
motorway light . . . . . . . . . . . . . . . . . . . . . . . . . 136
parking lights . . . . . . . . . . . . . . . . . . . . . . . . . . 136
reading lights . . . . . . . . . . . . . . . . . . . . . . . . . . 138
side lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131
switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
turn signal lever . . . . . . . . . . . . . . . . . . . . . . . . 131
Load compartment in the luggage compartment see Loading the luggage compartment . . . . . 151
Loading the luggage compartment . . . . . . . . . . . 151
Loading the vehicle fastening rings . . . . . . . . . . . . . . . . . . . . . . . . . 157
luggage compartment . . . . . . . . . . . . . . . . . . . . 11
roof carrier system . . . . . . . . . . . . . . . . . . . . . . 162
tailboard for transporting long items . . . . . . . 156
Locking and unlocking in the door cylinder . . . . . . . . . . . . . . . . . . . . . . 10
with Keyless Access . . . . . . . . . . . . . . . . . . . . . 120
with the central locking switch . . . . . . . . . . . . 119 Luggage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
Lugg
age compartment . . . . . . . . . . . . . . . . . . . . . . 11
automatic lock . . . . . . . . . . . . . . . . . . . . . . . . . 126
luggage compartment lighting . . . . . . . . . . . . 138
luggage compartment variable floor . . . 159, 160
net bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 158
net partition . . . . . . . . . . . . . . . . . . . . . . 154, 155
rear shelf . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151
retractable rear shelf . . . . . . . . . . . . . . . . . . . . 152
storing the rear shelf . . . . . . . . . . . . . . . 153, 154
unlocking manually . . . . . . . . . . . . . . . . . . . . . . 12
see also Loading the luggage compartment . 151
Luggage compartment floor . . . . . . . . . . . 159, 160
Luggage compartment variable floor . . . . 159, 160
Luggage net luggage compartment . . . . . . . . . . . . . . . . . . . 158
Lumbar support . . . . . . . . . . . . . . . . . . . . . . . . . . 143
M Main beam assist . . . . . . . . . . . . . . . . . . . . . . . . . 132
Main beam lever . . . . . . . . . . . . . . . . . . . . . . . . . . 131
Main panel turn signal and main beam lever . . . . . . . . . . . 131
Maintenance intervals . . . . . . . . . . . . . . . . . . . . . 264
Malfunction adaptive cruise control . . . . . . . . . . . . . . . . . . . 197
catalytic converter . . . . . . . . . . . . . . . . . . . . . . 189
clutch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
diesel particulate filter . . . . . . . . . . . . . . . . . . . 189
Front Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
front assist monitoring system . . . . . . . . . . . . 208
gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 187
Manual air conditioning . . . . . . . . . . . . . . . . . . . . 47
Manual gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . 179
Manual unlocking and locking . . . . . . . . . . . . . . . 87
Mirror . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141
Mobile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245 Mobile telephones . . . . . . . . . . . . . . . . . . . . . . . . 245
Model pl
ate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281
Modifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Moving off hill driving assistant . . . . . . . . . . . . . . . . . . . . . 179
Multi-collision Brake . . . . . . . . . . . . . . . . . . . . . . 177
Multimedia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
My Beat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172
N
Natural gas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260 fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108
fuel tank cap . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
LNG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
refuelling . . . . . . . . . . . . . . . . . . . . . . . . . 257, 260
smell . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
special features . . . . . . . . . . . . . . . . . . . . . . . . 258
Natural leather cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252
Navigation system CD-ROM player . . . . . . . . . . . . . . . . . . . . . . . . . 149
Net bag luggage compartment . . . . . . . . . . . . . . . . . . . 158
Net partition . . . . . . . . . . . . . . . . . . . . . . . . 154, 155
Noises adaptive cruise control . . . . . . . . . . . . . . . . . . . 197
brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
ESC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178
parking brake . . . . . . . . . . . . . . . . . . . . . . . . . . 174
refuelling natural gas . . . . . . . . . . . . . . . . . . . . 258
tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59, 271
Number of seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
O Octane rating (petrol) . . . . . . . . . . . . . . . . . . . . . . 258
313