2018 Seat Leon engine

Practical tips
Refuelling with natural gas Fig. 305
Open tank lid: gas filler mouth 1 ,
fill er mouth r
et
ainer 2 Before r
efuelling, the engine and the ignition,
mobil e t

elephone and heating must be
switched off separately

Checking and refilling levels
Fuel Identification of the fuel 1)Fig. 306
Identification of fuels according to
Eur opean Union (EU) Dir
ectiv
e 2014/94/Fuels are identified with different symbols.
Depending on the fuel, the diff
er
ent symbol

s
are on the pump and the tank lid of your vehi-
cle. The identification serves to prevent con-
fusion when choosing the fuel.
Petrol with ethanol (“E” stands for Etha-
nol). The number indicates the percent-
age of ethanol in the petrol. “E5” means,
for example, an ethanol ratio of 5% max.
Diesel with biodiesel (“B” stands for Bio-
diesel). The number indicates the per-
1 2 centage of biodiesel in the diesel. “B7”
means, f
or e
x

ample, a proportion of bio-
diesel of max. 7%.
Natural gas: “CNG” means Compressed
Natural Gas.
Type of petrol  Applies to vehicles: with petrol engine
The corr ect gr

ade of petrol is listed inside the
fuel tank flap.
The vehicle is equipped with a catalytic con-
verter and must only be run on unleaded
petrol. The petrol must comply with the
standard EN 228 and be sulphur-free. Fuels
with a 10% ethanol ratio can be refuelled
(E10) 2)
. The types of petrol are differentiated
by using the octane numbers (RON) or via
the anti-knock index (AKI).
The following pieces of text show the infor-
mation included in the corresponding stickers
on the tank lid (examples): 3 Super unleaded petrol 95 octane petrol or
normal 91 oct
ane petr
ol at l

east
We recommend refuelling with super 95 oc-
tane petrol (91 AKI). If not available: normal 91
octane petrol (87 AKI) (with a slight power
loss).
Super unleaded petrol, 95 octanes at
least
You should use super 95 octane petrol (91
AKI) at least.
If super is not available, if necessary, use nor-
mal 91 octane petrol (87 AKI). In this case only
use moderate engine speeds and a light
throttle. Refuel with super as soon as possi-
ble.
Unleaded super plus 98 octane petrol or
super 95 octane petrol at least
We recommend refuelling with super plus 98
octane petrol (93 AKI). If not available: super
95 octane petrol (91 AKI) (with a slight power
loss).
If super is not available, if necessary, use nor-
mal 91 octane petrol (87 AKI). In this case only
use moderate engine speeds and a light

Practical tips
Checking levels Fig. 309
Diagram for the location of the various el-
ements. From time to time, the levels of the different
fluids in the v
ehicl
e must be check
ed. Never
fill with incorrect fluids, otherwise serious
damage to the engine may be caused.
Coolant expansion tank
Engine oil dipstick
Engine oil filler cap
Brake fluid reservoir
Vehicle battery (underneath the cover)
Windscreen washer reservoir
The checking and refilling of service fluids are
carried out on the components mentioned 1 2
3
4
5
6 above. These operations are described in

Checking and refilling levels
If the recommended engine oil is not availa-
bl e
, in the e
vent of an emergency you can
add oil once up to a maximum of 0.5 L of the
next oil until the next oil change:

Practical tips
Depending on how you drive and the condi-
tions in which the v ehicl
e is used, oil con-
sumption can be up t
o 0.5 l/1000 km. Oil
consumption is likely to be higher for the first
5,000 km. For this reason the engine oil level
must be checked at regular intervals, prefera-
bly when filling the tank and before a journey. WARNING
Any work carried out in the engine com-
partment or on the engine must be carried out cautiously.

Checking and refilling levels
The oil change intervals are shown in the
Maint enance Pr
ogr
amme.WARNING
Only change the engine oil yourself if you
have the specialist kno wl

edge required!

Service
Oil change service
a)
PR No. Type of
service Service interval
QI1
FixedEvery 5000 km or after
1 year b)
QI2 Every
7500 km or after
1 year b)
QI3 Ev
ery

10000 km or after
1 year b)
QI4 Ev
ery

15000 km or after
1 year b)
QI6 Fle

xible According to the service in-
t
erv
al displ

ay a)
The data are based on normal conditions of use.
b) Whatever happens first. Inspection Service
a)
According to the service interval display a)
The data are based on normal conditions of use.
Bear in mind the inf ormation about the speci-
fications of the engine oil accor ding t

o the
VW standard

Technical specifications
Technical data
T echnical specifications
Impor t
ant information
Important The information in the vehicle documentation
alw
ays t

akes 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 figures may be different depending
whether additional equipment is fitted, for dif-
ferent models, for special vehicles and for
other countries. Abbreviations used in the Technical Speci-
fications section kW Kilowatt, engine power measurement.
PS Pferdest