KNOWING YOUR VEHICLE
56
system automatically switches to petrol
operation.
The engine always starts up on petrol,
with automatic switching to methane
when the best conditions are achieved
(engine water temperature, minimum
engine rpm limit) for switching to
methane.
Therefore, there must always be some
petrol in the tank (at least 1/4 full), in
order not to compromise the operation
of the fuel pump.
For this reason there must always
be petrol in the tank.
The petrol/methane switch fig. 109,
amongst the controls in the dashboard,
makes it possible to select petrol
operation. The system does not switch
automatically to methane operation if
the petrol runs out.
109 F0T0343
Passive safety
The vehicle has the same passive
safety specifications as other versions.
In particular, the cylinder location and
attachments are designed to pass the
impact tests in accordance with Fiat
safety standards. The flow of methane
from the cylinders is governed by a
solenoid valve that is open only during
methane operation.
The solenoid valve unit includes
protections against excess flows (if
the high pressure system breaks, the
flow of methane is restricted to values
that are not dangerous), overheating
(melting pad that allows the methane to
drain off if the temperature exceeds
110°C) and a pressure calibrated
device that intervenes if the pressure
goes above 300 bar ensuring the
methane escapes in a controlled
manner and as quickly as possible.
The solenoid valve is connected to
the Fire Protection System (fuel cut-off
system).
Active safety
The vehicle has the same active safety
specifications as other versions.
WARNING If gas is smelled, switch
from methane operation to petrol
operation and immediately go to a Fiat
Dealership to have the vehicle checked
and possible system faults excluded.
WARNING
42)
The vehicle is equipped with a high-
pressure methane system designed to
operate at 200 rated bar. It is dangerous
to stretch the system with higher
pressures. To prevent damage to the
methane system parts when towing or
lifting the vehicle, follow the instructions
shown in the "Towing the vehicle" section.
If there is a problem with the methane
system, only contact a Fiat Dealership. Do
not modify configuration or components
of the methane system; they have been
designed exclusively for this vehicle. The
use of other components or materials
could cause malfunctions and prejudice
safety.
43)
When oven painting, the cylinders
must be removed from the vehicle and
refitted by a Fiat Dealership. Although the
methane system has numerous safety
features, it is advisable to close the
manual tap on the cylinders whenever the
vehicle is not in use for a long period,
transported on other vehicles or moved in
an emergency as a result of a breakdown
or accident.
44)
If gas is smelt, switch from methane
operation to petrol operation and
immediately go to a Fiat Dealerships to
have the vehicle checked and possible
system faults supply excluded.
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