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240
Fuel and exhaust gas cleaning
Note
SEAT recommends filling the t
ank exclusively
with petrol every 10,000 km to decrease im-
purities that using E100 ethanol fuel might
have left in the engine.
Natural gas
✓ Valid for: vehicles with natural gas engines
Natural gas can be compressed or in liquid
form, addition to others.
Use of compressed natural gas (CNG)
Vehicles with natural gas engines must only
be run on CNG (Compressed Natural Gas), or
CNG with a biomethane if this meets the EN
16723-2 standard.
Fuels such as liquefied natural gas (LNG), lique-
fied petroleum gas (LPG) or hithane (mixture of
hydrogen and methane) should not be used to
fill the tank.
Natural 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.
The engine management automatically adapts
to the natural gas used according to its quality.
Therefore, dierent quality gases can be mixed
in the tank, without the need for comprehensive
draining before applying a dierent quality gas.
Updated information relating to natural gas
quality is shown on the instrument cluster dis-
play.
Regular checks of the natural gas system
The natural gas tanks may be damaged or cor-
roded by external factors. The walls of the gas
tanks are weakened by deformations, damage
or corrosion. The vehicle owner must have a
specialised workshop check (visual check) the
gas system at least once every 4 years. Nat-
ural gas tanks must be replaced at a special-
ised workshop.
WARNING
Failure to act when you can smell gas in the
v
ehicle or when refuelling can cause serious
injuries.
●
Stop the vehicle immediately.
●
Switch the ignition o.
●
Open the doors to appropriately ventilate
the vehicle.
●
Extinguish cigarettes immediately.
●
Move away from the vehicle or switch o
objects that may cause sparks or a fire.
●
If you continue to smell gas, do not con-
tinue driving!
●
Seek specialist assistance. Have the fault
r
epaired.
●
If necessary, warn the emergency services.
WARNING
Damaged, corroded or rusted tanks can re-
sult in serious injury or e
ven death.
●
Have the natural gas deposits checked at
least every 4 years (visual check).
●
Natural gas tanks have a limited service
life. Have the natural gas tanks replaced
when required. You can obtain further infor-
mation about this at SEAT dealers or special-
ised workshops.
Engine management and
emissions control system
Introduction
WARNING
Due to the high temperatures reached by the
e
xhaust gas scrubbing system, you should
not park your vehicle near a surface that can
catch fire easily. Fire hazard!
WARNING
Do not apply wax underneath the vehicle
ar
ound the area of the exhaust system: Fire
hazard!
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