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Advice
●
In those cou
ntries where unleaded petrol is
not available, you may refuel with a fuel with
a low lead content.
Natural gas
Natural gas can be compressed or in liquid
form, ad
dition to others.
Liquefied natural gas (LNG) is the result of
heavy cooling of natural gas. Therefore its
volume is considerably reduced compared
with compressed natural gas (CNG). In vehi-
cles with a natural gas engine, liquefied nat-
ural gas cannot be directly refilled, as the gas
would expand excessively in the vehicle gas
tank.
Therefore, vehicles with a natural gas engine
must only be refuelled using compressed
natural gas ›››
.
Nat
ur
a
l gas quality and consumption
Natural gas is divided into the groups H and
L depending on its quality.
Gas type H has a superior heating power and
inferior nitrogen and carbon dioxide content
than type L. The higher the heating power of
the natural gas, the lower the consumption
will be.
However, the heating power and the propor-
tion of nitrogen and carbon dioxide can fluc-
tuate within the quality groups. Therefore, ve-
hicle consumption can also vary when using
a single type of gas only.
The engine management automatically
adapts to the natural gas used according to
its quality. Therefore, different quality gases
can be mixed in the tank, without the need
for comprehensive draining before applying a
different quality gas.
Natural gas and safety
If you can smell gas or suspect that there is a
leak ›››
:
●
Stop the vehicle immediately.
●
Switch the ignition off.
●
Open the doors to appropriately ventilate
the
v
ehic
le.
●
Extinguish cigarettes immediately.
●
Move away from the vehicle or switch off
objects that may cause sparks or a fire.
●
If you continue to smell gas, do not contin-
ue driving!
●
Seek specialist assistance. Have the fault
repaired.
Regular checks of the natural gas system
The natural gas tanks may be damaged or
corroded by external factors. The walls of the
gas tanks are weakened by deformations,
damage or corrosion. As a result, the tanks
could burst and result in serious injuries or
even death. For this reason, the vehicle own-
er must have a specialised workshop check
(visual check) the gas system every 4 years
at least. The vehicle owner must have a spe-
cialised workshop replace the natural gas
tanks before they reach the end of their serv-
ice life. For further information about the
service life of gas tanks, go to a SEAT dealer
service or a specialised workshop
WARNING
Failure to act when you can smell gas in the
vehicl
e or when refuelling can cause serious
injuries.
●
Carry out the necessary operations.
●
Leave the danger zone.
●
If necessary, warn the emergency services.
WARNING
The vehicle is not prepared to use liquefied
natur
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.
WARNING
Damaged, corroded or rusted tanks can result
in serious injur
y or even death.
●
Have the natural gas deposits checked at
least every 4 years (visual check).
182
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