2018 FIAT 500L fuel pressure

In Italy, the tank has a life of 10 years
starting from the car registration date. If
the vehicle has been registered in a
country other than Italy, the duration
and the testing/inspection procedures
of the LPG tank can vary depending on
the national laws of that country. In all
case, when the time limit for your
country has expired, go to a Fiat Dealer
to have the tank replaced.
SELECTION OF
PETROL/LPG SUPPLY
TYPE
The fig. 55 button (petrol/LPG switch)
allows you to select running on petrol or
LPG.
If, during LPG operation, the same runs
out, the car switches to petrol
automatically and all the bars near the
letters LPG on the display switch off.
This condition persists until the next
LPG refuelling.The engine always starts up on petrol,
with automatic switching to LPG when
the best conditions are achieved
(engine water temperature, minimum
engine rpm limit) for switching to LPG.
REFUELLING
LPG
Maximum refuelling capacity (including
reserve): 38.4 litres. The figure already
takes into account the 80% tank filling
limit and the residual fluid required
for priming; this figure represents the
maximum permitted capacity.In
addition, this value may, in different
refuelling situations, give rise to
variations as a result of: differences
between the supply pressures of
the pumps, pumps with different
supply/stopping specifications,
tank not in reserve condition.
IMPORTANT In order to avoid
inconsistent information by the LPG
gauge on the instrument panel, it is
recommended to refill with at least 10
litres each time.
WARNING
34)Note that in some countries (including
Italy) there are legal restrictions in force
for parking/garaging motor vehicles fuelled
by gas that is denser than air; LPG comes
under this category.
35)Do not switch between the two
operating modes whilst starting the engine.
36)If gas is smelt, switch from LPG
operation to petrol operation and
immediately go to a Fiat Dealership to have
the vehicle checked and possible system
faults excluded.
WARNING
16)The car is equipped with a specifically
designed gaseous LPG injection system:
it is therefore absolutely forbidden to
alter the configuration of the system or its
components. The use of other
components or materials could cause
malfunctions and lead to a reduction
in safety; therefore, in the case of
problems, contact a Fiat Dealership. When
towing or lifting the vehicle, follow the
instructions in the main handbook under
the paragraph on "Towing the vehicle"
to prevent damage to the gas system
parts.
17)The system operates at temperatures
ranging between -20°C and 100°C.
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KNOWING YOUR CAR

18)When painting in an oven, the LPG
tank must be removed from the car and
later refitted by a Fiat Dealership. Although
the LPG system has numerous safety
features, it is advisable to proceed
as follows every time the vehicle is not in
use for a long period or moved in an
emergency as a result of a breakdown or
accident: unscrew the devices fastening
the cover of the LPG tank, then remove it.
Close the LPG cock rotating the ring nut
clockwise (see "Passive safety / active
safety"). Refit the cover and retighten the
fastening devices.
19)Only use LPG for motor vehicles.
20)It is strictly forbidden to use any
additive in the LPG. Periodically (at least
once every six months) it is advisable to let
the LPG in the tank run out and, at the
first refuelling, to check that it does not
exceed the maximum capacity of 38.4 litres
(reserve included) (with a tolerance of 2
litres excess). If the level is above 38.4 litres
(reserve included) contact a Fiat
Dealership immediately.
21)When switching is requested, metallic
noise from the valves which pressurise
the circuit can be heard. For the switching
logic described above, a delay between the
valve ticking and the switching off of the
instrument panel indication is completely
normal.22)In particular usage conditions, such as
starting and operation at low ambient
temperature or LPG supply with low
propane content, the system may switch
temporarily to petrol operation, without
a visual indication of switching on the
instrument panel. In the event of low LPG
levels in the tank or request for high
performance (e.g. overtaking, car fully
laden, steep hills) the system may
automatically switch to petrol operation to
guarantee the engine power requested; the
green warning light on the instrument
panel switches on to indicate this. When
the above conditions are no longer
present, the system automatically restores
LPG operation; the green warning light
switches off. To achieve the automatic
switching described above, make sure that
there is always enough fuel in the petrol
tank.VERSION WITH
METHANE SYSTEM
(Natural Power)
37) 38) 39) 40)
23) 24) 25) 26) 27)
INTRODUCTION
The "Natural Power" version features
two fuel systems, one for petrol and
one for natural gas (methane).
CYLINDERS
The car is provided with two cylinders
(total capacity approximately 84 litres)
located under the floor (fig. 56 and
fig. 57) and protected by two specific
guards containing compressed
methane in gaseous state (200 bar
nominal pressure at 15°C).
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The methane, stored in the cylinders at
high pressure, flows through a
dedicated pipe to reach the pressure
regulator/reduction unit which supplies
the two methane injectors at low
pressure (about 9 bar).
Cylinder capacity: about 14 kg. The
total volume of cylinders is about 84
litres.IMPORTANT In order to avoid
inconsistent information by the
methane gauge on the instrument
panel, it is recommended to refill with at
least 10 litres each time.
Cylinder certification
The cylinders are certified according to
ECE Regulation Procedure no. 110,
and must be inspected every 4 years
according to ECE Regulation Procedure
no. 110 from the car registration date
or in accordance with specific
regulations in individual countries.
The plates provided by the Dealership
with the on board documentation
contain the date for the first inspection
of the cylinders.Methane refuelling
stations are not authorised to refill
the cylinders when the inspection
date has expired.
IMPORTANT If the car has been
registered in a country other than Italy,
the certification data, identification
and inspection procedures for
the methane cylinders should comply
with the legislation in that country.
In any case, remember that the life of
the cylinders is 20 years from the
production date as set out in ECE
Regulation no. 110.SELECTION OF
PETROL/METHANE
SUPPLY TYPE
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.
If you want to run on petrol, press the
fig. 58 button: this can be done both
when the car is stationary with the
engine running or while driving.
The switching on of the LED located on
the button and of the green warning
light
on the instrument panel
indicates that the switching request has
taken place correctly.
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KNOWING YOUR CAR

To guarantee switching in full safety, the
actual change to the chosen fuel
system takes place depending on the
car usage conditions; it may not
therefore be immediate.
In addition, when starting at outside
temperatures below approximately
-10°C, the switching times from petrol
to methane increase to allow the
pressure regulator/reduction unit to
heat up.
WARNING
37)The car is equipped with a high-
pressure methane system designed to
operate at 200 rated bar. It is dangerous to
force the system to run at higher
pressures. When towing or lifting the car,
follow the instructions in the "Towing
the car" paragraph to prevent damage to
the methane system parts. If there is a fault
in 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 car. The use of other
components or materials could cause
malfunctions and prejudice safety.38)When oven painting, the cylinders must
be removed from the vehicle and
subsequently refitted by a Fiat Dealership.
Although the methane system has
numerous safety features, it is advisable to
close the manual cocks for the cylinders
every time the car is not in use for a long
period, transported on other cars or moved
in an emergency as a result of a fault or
accident.
39)Do not switch between the two
operating modes whilst starting the engine.
40)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
23)If, during methane operation, the same
runs out, the car switches to petrol
automatically and all the bars near the
letters CNG on the display switch off. This
display remains until the next methane
refuelling.
24)Regardless of the last fuel system
used, at the following engine starting, after
the initial petrol stage, the system will
automatically switch to methane.
25)When switching from petrol to methane
is requested, a metal noise from the valves
which pressurise the circuit can be heard,
as it happens while starting the car. For the
switching logics described above, a delay
between the valve ticking and the switching
off of the green warning light
is
absolutely normal.26)In particular usage conditions, such as
starting and operation at low ambient
temperature, the system may switch
temporarily to petrol operation, without
indicating the performed switching. In the
event of low methane levels in the tank
or request for high performance (e.g.
overtaking, car fully laden, steep hills) the
system may automatically switch to petrol
operation to guarantee the engine power
requested; the green icon
switches
on to indicate this. When the above
conditions are no longer present, the
system automatically restores methane
operation. The green warning light
turns
off. To achieve the automatic switching
described above, make sure that there is
always enough fuel in the petrol tank.
27)The other plates (provided with the
vehicle documents) show the date when
the first cylinder inspection/test is due.
Methane refuelling stations are not
authorised to refill the cylinders when the
inspection date has expired.
43

Amber warning lights
Warning light What it means
iTPMS
(for versions/markets, where provided)
The warning light switches on when the ignition key is turned to MAR, but it should switch off after a few
seconds.
iTPMS failure/iTPMS temporarily deactivated
The warning light flashes for about 75 seconds and then stays on constantly to indicate that the system is
temporarily deactivated or faulty. The system will go back to normal operation when the operating
conditions will allow it. If this is not the case, carry out the “Reset” procedure after restoring the normal
operating conditions. If the malfunction warning persists, contact a Fiat Dealership as soon as possible.
Tyre pressure low
The warning light switches on constantly to indicate that the tyre pressure is lower than the recommended
value and/or that slow pressure loss is occurring. In these cases, optimal tyre duration and fuel
consumption may not be guaranteed. It is advisable to restore the correct pressure value (see the "Wheels"
paragraph in the "Technical specifications" section). Once the normal operating conditions of the vehicle
are restored, carry out the "Reset" procedure.
IMPORTANT Do not continue driving with one or more flat tyres as the car handling may be compromised.
Stop the vehicle, avoiding sharp braking and steering.
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45)The iTPMS cannot indicate sudden tyre
pressure drops (for example when a tyre
bursts). In this case, stop the vehicle,
braking with caution and avoiding abrupt
steering.
46)The iTPMS system only warns that the
tyre pressure is low: it cannot inflate
them.
47)Insufficient tyre inflation increases fuel
consumption, reduces the tread duration
and may affect the capacity to drive safely.OCCUPANT
PROTECTION
SYSTEMS
Some of the most important safety
equipment of the car comprise the
following protection systems:
seat belts;
SBR (Seat Belt Reminder) system;
head restraints;
child restraint systems;
Front airbags and side bags.
Read the information given the
following pages with the utmost care. It
is of fundamental importance that the
protection systems are used in the
correct way to guarantee the maximum
possible safety level for the driver and
the passengers.
For the description of the head restraint
adjustment see the "Head restraints"
paragraph in the "Knowing your car"
chapter.
SEAT BELTS
69) 70)
All vehicle seats are equipped with seat
belts with three anchor points and a
retractor.
The reel mechanism operates locking
the belt in the event of sharp braking or
strong deceleration due to an impact.
This allows the seat belt strap to slide
freely and to adapt to the body of
the occupant. In the event of an
accident, the seat belt will lock reducing
the risk of impact inside the passenger
compartment and of being projected
outside the car.
The driver is responsible for respecting,
and ensuring that all the other
occupants of the vehicle also respect,
the local laws in force in relation to
the use of the seat belts.
Always fasten the seat belts before
setting off.
USING THE SEAT BELTS
The seat belt should be worn keeping
the chest straight and rested against
the backrest.
To fasten the seat belts, hold the
tongue A fig. 69 and insert it into the
buckle B, until it clicks into place.
If the belt jams while being removed, let
it rewind for a short stretch, then pull
it out again without jerking.
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SAFETY

Symbols for petrol/LPG bi-fuel cars
E5: Unleaded petrol containing up to
2.7% (m/m) oxygen and with maximum
5.0% (V/V) ethanol compliant with
EN228.
E10: Unleaded petrol containing up to
3.7% (m/m) oxygen and with maximum
10.0% (V/V) ethanol compliant with
EN228.
LPG: Automotive LPG compliant with
EN589.
WARNING
119)Do not apply any object/plug to the
end of the filler which is not provided
for the car. The use of non-compliant
objects/plugs could cause a pressure
increase inside the tank, resulting in
dangerous situations.
120)Do not bring naked flames or lit
cigarettes near to the fuel filler: fire risk.
Keep your face away from the fuel filler to
prevent breathing in harmful vapours.
121)Do not use a mobile phone near the
refuelling pump: risk of fire.
WARNING
60)For diesel engines, only use diesel fuel
for motor vehicles in accordance with
EN590 European specifications. The use of
other products or mixtures may damage
the engine beyond repair and
consequently invalidate the warranty, due
to the damage caused. If you accidentally
introduce other types of fuel into the tank,
do not start the engine. Empty the tank.
If the engine has been run for even an
extremely limited amount of time, you must
not only drain the fuel tank, but the rest of
the supply circuit as well.
61)The other plates (provided with the
vehicle documents) show the date when
the first cylinder inspection/test is due.
Methane refuelling stations are not
authorised to refill the cylinders when the
inspection date has expired.
118GPL-TARGH
121

If you are on a slope or uneven surface,
place the wedge provided under the wheel
(see the instructions on the next pages).
124)The vehicle's driving characteristics
will be modified with the space-saver wheel
fitted. Avoid violent acceleration and
braking, abrupt steering and fast cornering.
The overall duration of the space-saver
wheel is of about 3000 km, after which the
relevant tyre must be replaced with another
one of the same type. Never install a
standard tyre on a rim that is designed for
use with a space-saver wheel. Have the
wheel repaired and refitted as soon as
possible. Using two or more space-saver
wheels at the same time is forbidden.
Do not grease the threads of the stud bolts
before fitting them: they might slip out.
125)The jack is a tool developed and
designed only for changing a wheel, if a
tyre gets punctured or damaged, on the
vehicle with which it is supplied or on other
vehicles of the same model. Any other
use, e.g. to jack up other vehicle models or
different things, is strictly prohibited. Never
use it to carry out maintenance or repairs
under the vehicle or to change summer/
winter wheels and vice versa: we advise
you to contact a Fiat Dealership. Never go
under the raised vehicle: use it only in
the positions indicated. Do not use the jack
for loads higher than the one shown on
its label. Never start the engine with car
raised. If the vehicle is raised more than
necessary, everything can become more
unstable, with the risk of the vehicle
dropping violently. Thus, lift the car only as
needed in order to access the space-saver
spare wheel.126)The space-saver wheel cannot be
fitted with snow chains. If a front (drive) tyre
is punctured and chains are needed, use
a standard wheel from the rear axle and
install the space-saver wheel on the rear
axle. In this way, with two normal drive
wheels at the front axle, it is possible to use
snow chains.
127)When turning the jack handle make
sure that it can turn freely without scraping
your hand against the ground. The moving
components of the jack ("worm screw"
and joints) can also cause injuries: do not
touch them. If you come into contact
with lubricating grease, clean yourself
thoroughly.
128)If the hub cap is not fitted correctly, it
may come off when the car is travelling.
Never tamper with the inflation valve. Never
introduce tools of any kind between rim
and tyre. Check tyre and space-saver
wheel pressures regularly, complying with
the values given in the "Technical
specifications" chapter.
129)At the end of the operation of
raising/locking the space-saver wheel
device, the spanner must be extracted,
taking care NOT to turn it in the wrong
direction to facilitate the extraction of the
spanner itself, so as to prevent the
attachment device from being released and
the lack of safe restraint.
WARNING
62)Contact a Fiat Dealership as soon as
possible to have the correct tightening
of the wheel stud bolts checked.
“Fix&Go Automatic”
KIT
130) 131)
63)2)
DESCRIPTION
The Fix&Go Automatic kit is located in
the boot, inside a dedicated container.
The container is also equipped with
a screwdriver, the tow hook and the
funnel for refuelling in an emergency. To
access the kit, open the boot door,
remove the load platform and lift the
covering carpet.
LPG versions
The kit is located in a bag fixed to the
boot lining by means of Velcro.
The kit fig. 130 contains:
one cartridge A containing sealant
and fitted with: transparent tube for
injecting the sealant 4 and sticker
C with the wording MAX 80 km/h / 50
mph to be placed in a clearly visible
position (e.g. on the dashboard) after
repairing the tyre;
a compressor B;
one leaflet containing instructions for
using the kit;
127