Page 1
FIATMULTIPLA
NATURAL POWER
Page 2
This enclosure deals with the Fiat
Multipla petrol-natural gas version.
Refer to the Fiat Multipla Owner
Handbook for any subject not covered
by this supplement.
INTRODUCTION ....................................................................................... 3
FUNCTIONAL DIAGRAM OF THE SYSTEM ....................................... 6
BOTTLES ....................................................................................................... 7
SOLENOID VALVE/SAFETY DEVICES ................................................... 8
PIPES ............................................................................................................... 9
PRESSURE REDUCER/REGULATOR ...................................................... 9
NATURAL GAS INJECTORS .................................................................... 9
NATURAL GAS ELECTRONIC CONTROL UNIT ............................ 9
NATURAL GAS/PETROL SWITCH ........................................................ 10
NATURAL GAS AMOUNT INDICATOR.............................................. 11
FUEL CUT-OFF SWITCH ......................................................................... 12
ENGINE STARTING ................................................................................... 12
TO THE FILLING STATION .................................................................... 13
IF A TYRE IS PUNCTURED ....................................................................... 14
BOTTLE IDENTIFICATION DATA ........................................................ 15
BOTTLE INSPECTION .............................................................................. 15
SERVICE SCHEDULE ................................................................................... 16
BODYWORK VERSION CODES ............................................................ 17
ENGINE ......................................................................................................... 17
FUEL FEED/IGNITION ............................................................................... 18
IGNITION ..................................................................................................... 18
COOLING SYSTEM .................................................................................... 18
PERFORMANCE ........................................................................................... 18
WEIGHTS ....................................................................................................... 19
DIMENSIONS ............................................................................................... 20
FUELLING AND FILLING ......................................................................... 21
FUEL CONSUMPTION .............................................................................. 22
EMISSIONS .......................................................................................... 23
CO
2
FUSES .............................................................................................................. 23
Page 3
INTRODUCTION
The Fiat Multipla “Natural power” version features
two fuel feed systems: one for petrol, one for natural
gas.
The two systems are independent from each other;
the natural gas system is of the sequential, timed
Multipoint type.
One single starting system, that is the petrol one, is
available.
What is natural gas?
Natural gas is a mixture of gas used as a primary
power source.
Methane is the main component of natural gas; for this
reason, natural gas is usually reffered to as “methane”
in Italy, even though it contains other hydrocarbons
and inert gases in small amounts.
Natural gas is extracted in a gaseous state and carried
to the place of utilization through gas pipelines;
supplies are abundant and well distributed worldwide.
Methane is a fuel that has a low impact on the
environment as, it significantly reduces the
contribution of exhaust fumes to the greenhouse
effect and pollution.
Natural gas Multipoint injection system
This is an original product of the research work
carried out by Fiat in the field of alternative fuel,
realized in close co-operation with qualified suppliers
in the natural gas field.
By matching the natural gas features with highly
sophisticated techniques for electronic petrol engine
control, significant results have been obtained as far as
driveability, exhaust emissions and consumption are
concerned.
The natural gas Multipoint injection system ensures
the same engine driveability features as with petrol
fuelling.
In any case, it should be reminded that, under any
driving condition, the engine power and torque
features are, during natural gas fuelling, reduced by
approximately 10% compared with petrol fuelling.
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Selecting the type of fuel feed
The Natural Power Fiat Multipla has been designed to be normally fuelled
by natural gas.
When the natural gas is running out and the pressure inside the bottle is
nearing the limit of correct operation, switching to petrol fuelling will
take place automatically.
The engine will always be started by petrol fuelling (in order to keep this
type of feed efficient), with automatic switching to natural gas fuelling
after a few seconds.
For this reason, petrol should always be found in the tank.
The control button located on the dashboard (A), represented by
ideograph K, makes it possible to select petrol fuelling. Automatic
switching to natural gas fuelling will not take place in case petrol has run
out.
Manual selection of the operating mode will be actuated only if the
engine speed is lower than 2,000 rpm.
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Passive safety
The Natural Power Fiat Multipla features the same
passive safety characteristics as the other versions.
In particular, the natural gas bottle position and
mounts have been designed so as to pass the crash
tests in accordance with the Fiat safety standards.
The flow of the natural gas coming out of the bottle is
regulated by a solenoid valve that is open only when
the engine is fuelled by natural gas.
The solenoid valve unit includes the protections in
case of excessive flow (in the event that the high
pressure system is broken, the natural gas flow will be
reduced to non-hazardous values) and excessive
temperature (a fuse plugnut allows natural gas to be
discharged as fast as possible when the temperature
exceeds 110°C).
The solenoid valve is connected to the Fire
Protection System (inertia switch or fuel cut-off
switch).
Active safety
The Natural Power Fiat Multipla features the same ac-
tive safety characteristics as the other versions.
WARNING
The Natural Power Fiat Multipla is equipped with a high-pressure natural gas
system designed to operated at 200 nominal bar.
It is dangerous to force the system with higher pressures. When the vehicle has to
be towed or lifted, strictly follow the instructions of the basic handbook (refer to
“Towing the vehicle”), to avoid damaging the natural gas system components.
In case of natural gas system failure, contact the Fiat Dealership only.
Do not modify the natural gas system configuration or components: they have
been especially designed for Natural Power Fiat Multipla only. Using other
components or materials may cause vehicle malfunction and affect the vehicle’s
safety. In case of “furnace” painting, the bottles shall be removed from the vehicle
and subsequently fitted back into place by the Fiar Dealership.
Although the natural gas system is equipped with various safety devices, it is
recommended that the manual tap of every single bottle is turned off every time
the vehicle is either put away for a long time or transported on other vehicles or
operated in emergency situations following a failure or accident.
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FUNCTIONAL DIAGRAM OF THE SYSTEM
Description of the system’s functional diagram
1 - Pressure reducer/regulator
2 - Natural gas injector holder manifold
3 - Petrol injector holder manifold
4 - Reducer heating by-pass
5 - Electronic control unit for petrol injection system
6 - Three natural gas bottles
7 - Safety devices and solenoid valve units
8 - Petrol tank
9 - Petrol fill-up and natural gas refill pipe unions
10 - Electronic control unit for natural gas injection
system
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BOTTLES
Three bottles are available, which contain the natural gas in a compressed
gaseous state (pressure: 200 nominal bar at 15°C).
The three bottles are housed and firmly secured under the platform;
moreover, they are protected by a special guard to avoid possible
damage.
The natural gas (stored in the high-pressure bottles) flows into a special
pipe until it reaches the pressure reducer/regulator that feeds the four
low-pressure (approximately 9 bar) natural gas injectors.
Bottle approval
The Methane gas bottles are certified according to ECE Regulation n.110
The gas bottles must be checked, according to the ECE
Regulation procedure n° 110, every 4 years as from, the vehicle
registration date, or according to specific provisions made by
single States (see Page15).
The plates delivered by the Depot with the relevant on-board
documentation indicate the expected for the first test/inspection of the
gas bottles.
The employees assigned to the Methane supply are not
authorised to fill the gas bottles with the test date expired.
IMPORTANT!If a vehicle has been registered in a country other
than Italy, the certification/identification data and the natural
gas bottle check/inspection procedures shall conform to the
national law regulations of that particular country.
In any case, it must be specified that, the life cycle of the gas
bottles is 20 years from the date of production as in ECE
Regulation n° 110.
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SAFETY DEVICES/SOLENOID VALVE
A solenoid valve has been screwed onto each bottle, which cuts off the
natural gas flow towards the engine feed circuit.
The solenoid valve is open when:
❐
the switching button is in the “Natural gas” position
❐
the pressure inside the bottle is enough for functioning
❐
the engine is running
❐
the inertia switch has not tripped.
The solenoid valve unit features the following safety devices:
1) Fuse plugnut: in case of anomalous overtemperature (higher than
110°C), this device will fully eliminate any overpressure hazard by
causing the natural gas contained in the bottle to flow outwards as fast
as possible.
2) Excessive flow: this device comes into operation in case of pipe
breakage, by reducing the natural gas outgoing flow to non-hazardous
values. The flow relief valve is placed in such a position that it can
operate even when the solenoid valve body is broken following a
collision.
3) Manual cock: it is positioned upstream the solenoid valve.
It separates the bottle from the natural gas system to allow the
maintenance operations to be carried out.
To turn cock (A) off, rotate clockwise (position 1).
To turn the cock on, rotate counterclockwise (position 2).
4) Non-return valve, positioned on the pipe running from the filling pipe
union, to prevent the natural gas from flowing back.
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PIPES
The natural gas pipes are made of galvanized iron and coated with plastic
material.
PRESSURE REDUCER/REGULATOR
The pressure reducer is installed in the engine compartment.
Its function is to reduce the natural gas pressure from the value found in
the bottle to the natural gas injector feed value (approximately 9 bar) and
keep the same constant under any operating condition.
NATURAL GAS INJECTORS
Four special natural gas injectors directly fitted into the cylinder head,
one for each intake manifold; they are fed at a steady pressure
(approximately 9 bar) and operated by the special electronic control unit.
ELECTRONIC CONTROL UNIT FOR NATURAL GAS
SYSTEM
Special electronic control unit for ignition advance and natural gas feed
control.
In the event that the natural gas runs out, the control unit will
automatically manage the shift to the petrol feed mode.
The control unit is located under the dashboard, on the passenger’s side.
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NATURAL GAS/PETROL SWITCH
As a rule, the engine is fuelled by natural gas (both the LED on button (A)
and warning light K (C) on the instrument board are OFF); in the event
that the natural gas runs out, switching to petrol fuelling will take place
automatically (warning light K on the instrument board will be ON).
After filling up, the engine will be automatically fuelled by natural gas
again.
If you specially want the engine to be fuelled by petrol (for instance, when
greater power is required), act on switch (A).
Both warning light K on the instrument board and green LED (B) on
button (A) light up to indicate that manual switching has taken place (the
natural gas feed system is fully OFF).
Manual selection of the operating mode is actuated only if the engine
speed is lower than 2,000 rpm.
Natural gas operation is resumed only by acting on switch (A) again (LED
OFF): the respective warning light K on the instrument board will go out.
Do not switch over between the two operating modes during the engine
starting phase.
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GAUGE INDICATING THE AMOUNT OF NATURAL GAS IN
THE BOTTLE
The gauge is always illuminated, both when the engine is fuelled by
natural gas and petrol.
The bottles are full when all of the six green nicks of the meter are fully
covered. Nick (A) (amber yellow) lights up to indicate that the engine is
low on fuel and must therefore be filled up.
When the last green nick goes out (natural gas run out), automatic
switching to petrol fuelling will take place, which will be signalled by the
lighting of warning light K on the instrument board.
Natural gas operation will be automatically resumed upon the next fill-up.
WARNING! Petrol shall always be available in the tank.
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FUEL CUT-OFF SWITCH
The safety switch will be tripped in case of vehicle
collision and will cut off natural gas supply, thus causing
the engine to be switched off.
For further information, refer to the Owner
Handbook, chapter “Dashboard and controls”,
paragraph “Fuel cut-off switch”.
ENGINE STARTING
To start the engine correctly, refer to the warnings
and recommendations provided in the Owner
Handbook, chapter “Engine starting”.
Emergency starting
If the Fiat CODE system is not able to deactivate the
engine lock, warning light ¢ will remain ON and the
engine won’t start. Refer to the Owner Handbook,
chapter “Emergency starting”.
12
WARNING
The Natural Power Fiat Multipla engine is always started by using petrol, even
when the switch is set to the “Natural gas” position; in this case, the green LED on
the switch will indicate that the engine is fuelled by petrol and will remain such
until automatic switching to natural gas has taken place: now, the green LED on
the switch will go out.
Therefore, it is required that reserve fuel is always available in the petrol tank.
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AT THE FILLING STATION
NATURAL GAS FILLING PIPE UNION
The natural gas filling pipe union (B) is located next to the petrol pipe
union and can be accessed by opening the fuel lid.
It is equipped with a dual “non-return” valve: one fitted into the pipe
union body itself; one located next to the bottle, at the start of the filling
pipe.
To gain access to pipe union (B), unscrew cap (A).
The contour of pipe union (B) is of the “multi-purpose” type.
During filling up, natural gas pipe union cap (A) can be positioned directly
on the lid, as illustrated.
In certain European States, the adaptors are considered ILLEGAL (e.g.
Germany).
3
In the case of service stations equipped with m
air pressure) so as to verify the residual pressure in the gas bottle, the
non-return valves must be unblocked by supplying a small quantity of
Methane.
The other plates (delivered with the vehicle documents) indicate the
expected date for the first testing/inspection of the gas bottles.
The employees assigned to the Methane supply are not authorised to fill
the gas bottles with the test date expired.
gas guns (with dissolved
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IF A TYRE IS PUNCTURED
General remarks
Only for Italian market, the FIX & GO quick tyre repair kit is provided as
a standard item in place of the traditional tool kit and space-saver spare
wheel.
The standard space-saver spare wheel can be supplied on request.
VAN versions are fitted as a standard spare wheel with steel rim of the
same type and size as the standard wheels mounted on the car.
As regards the use of the FIX & GO and the space-saver spare wheel,
follow the instructions of the Owner Handbook, chapter “In an
emergency”, paragraph “If a tyre is punctured”.
Space-saver spare wheel
The space-saver spare wheel is positioned in a horizontal position on the
right side of the luggage compartment and is protected by a special
coating (A).
The space-saver spare wheel can be removed as follows:
❐
lift the covering secured to the space-saver spare wheel base by means
of an elastic strap, then remove the same;
❐
unscrew fastening device (B) until it comes out of its respective pin;
❐
take off the complete wheel.
14
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Removable pin for space-saver spare wheel fastening
If you wish to obtain an even, smooth plane in the luggage compartment,
you may remove the space-saver spare wheel fastening pin (A) (this
operation must be carried out at the Fiat Dealership) and then plug the
hole by cap (B).
IMPORTANT! The space-saver spare wheel must, when available on the
vehicle, always be secured to its respective pin for safety reasons.
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IDENTIFICATION DATA
IMPORTANT! If a vehicle has been registered in a country other than
Italy, the certification/identification data and the natural gas bottle
check/inspection procedures shall conform to the national law
regulations of that particular country. In any case, it must be specified
that, the life cycle of the gas bottles is 20 years from the date of
production as in ECE Regulation n° 110.
Bottle marking
Each natural gas bottle is identified at the manufacturing plant by means
of a hallmark made on the nose of the bottle itself.
The hallmark bears the following information:
❐
Type of gas for which it is indicated (Methane);
❐
20-year expiry date of the gas bottle (month/year);
❐
Name of the manufacturer of the gas bottle;
❐
The gas bottle registration number of the gas bottle;
❐
Nominal capacity of the gas bottle in litres;
❐
Weight of the gas bottle in kg (specific for every gas bottle);
❐
Working pressure (200 bar at 15°C);
❐
Testing pressure of the gas bottle (300 bar);
❐
Identifying stamp of the certifying Nation;
❐
ECE certification number;
❐
Production date of the of the gas bottle (month/year).
The other plates (delivered with the vehicle documents) indicate the
expected date for the first testing/inspection of the gas bottles.
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BOTTLE INSPECTION
The gas bottles must be checked, according to the ECE Regulation
procedure n° 110, every 4 years as from, the vehicle registration date, or
according to specific provisions made by single States.
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PREVENTIVE MAINTENANCE SCHEDULE
Supplementary operations to the Maintenance Schedule described in the Owner Handbook
thousand kilometres
Cold cylinder compression check
Visually inspect the conditions of natural gas
pipes and fittings, natural gas tank fastening,
resume, if necessary*
Check the pressure regulator and
replace the internal filter, if necessary*
Check the fuel feed system functioning and parameters
by means of the self-diagnosis connection
Check the tightening torque of the
bottle fastening straps
*or every 12 months
20 40 60 80 100 120 140 160 180
●● ● ● ● ● ● ● ●
●● ● ● ● ● ● ● ●
●● ● ● ● ● ● ● ●
●● ● ● ● ● ● ● ●
●●●●●
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BODY VERSION CODE
Description
Fiat Multipla 186AMC1A 06G
Fiat Multipla
4-seater VAN 186BMC1A 02W
ENGINE
1.6
Fuelling
GENERAL REMARKS
by natural gas
Engine identification code 182B6000
Engine cycle Otto
Number and position of cylinders 4, in-line
Number of valves per cylinder 4
Pistor diameter and stroke mm 80.5 x 78.4
Total displacement cm
3
Compression ratio 10.5 : 1
kW
EC maximum rating HP
corresponding engine speed rpm
Nm
EC maximum torque kgm
corresponding engine speed rpm
68
92
5750
126
12.84
4000
Spark plugs NGK BKR6EKC
Fuel
Natural gas
Fuelling by
1596
Unleaded petrol
Petrol
76
103
5750
143
14.6
4000
95 RON
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FUEL FEED (Natural gas)
Electronic injection specific to the natural gas.
Type: Sequential, timed Multipoint injection.
Injection pressure: approximately 9 bar.
Stoichiometric metering of the air/natural gas mixture.
The natural gas injection system is controlled by a
special control unit by making use of the sensors
previously fitted to the vehicle, including the oxygen
sensor for fuel metering control.
IGNITION
Electronics with static advance integrated with
injection.
ENGINE COOLING
Engine cooling system with branching-off to bring hot
fluid in contact with the pressure reducer (which is
subject, during its operation, to heavy cooling).
PERFORMANCE
th
Maximum speeds in the 5
gear (kph):
petrol fuelling: 168
natural gas fuelling: 157
18
WARNING
Any modification or repair made to the fuel feed system in a wrong way and
without considering the technical features of the system may cause operating
anomalies with a risk of fire.
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WEIGHTS
1.6
Weights (kg) per versions
Vehicle curb weight
(including fill-up, spare wheel, tools and accessories):
Maximum carrying capacity, including driver (1):
Maximum permitted load (2)
– front axle:
– rear axle:
– total:
Towable loads "
– braked trailer:
– non-braked trailer:
Maximum load on tow hitch (trailer with brakes):
Maximum load permitted on the roof:
(1) In the presence of special outfits (trailer towing device, etc.) the no-load weight increases and, as a result, the maximum carrying ca-
(2) Loads not to be exceeded. The user shall place the goods in the luggage compartment and/or on the loading plane in accordance with
(*) For specific markets
(
") The operating speed shall be restricted to 100 kph when the vehicle tows a trailer.
pacity decreases, in accordance with the maximum permitted loads.
the maximum permitted loads.
1470
580
1100
1050
2050
1000 (900*)
400
70
80
1.6 VAN
4-seater
1520
4p + 230
1100
1050
2050
1000
400
70
80
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DIMENSIONS
Boot volume (VDA standards):
3
❒ in normal conditions: 430 dm
❒ flush with the roof and with the rear
seats removed: 1,900 dm
Height is meant with the car unladen.
Dimensions (mm)
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ABCDEFGH
100 16V 837 2666 586 4089 1721 1515 1871 1520
.
3
.
VAN 100 16V 837 2666 586 4089 1695 1515 1871 1520
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FUELLING AND FILLING
Person transport version
Petrol .................................................................. litres 38
❐
including a reserve of .................................. litres 5
Natural gas (*)
❐
bottle ................................................................ litres 164
❐
Natural gas (*) ............................ m338.9 (kg 26.49)
(*) Natural gas in standard conditions: 15°C; 1.013 bar; density: 0.680
3
kg/m
.
IMPORTANT! Please be reminded that when natural
gas is used to fuel the vehicle, the fuel distance may
vary to some extent since it depends on the vehicle
maintenance and driving conditions as well as the
temperature of the gas in the bottle.
In fact, natural gas heats up when it is filled and cools
when the vehicle is running, thus undergoing pressure
variations that reduce the amount of gas that can be
used.
ENGINE OIL
IMPORTANT! As regards the engines powered by
alternative fuels (natural gas), a multigrade engine oil
shall be used, which shall feature very high fluidity,
grade: SAE 5W30, specifications ACEA A1-A5 - API SL
and FIAT 9.55535-M1.
Therefore, it is recommended that you use the
SELENIA PERFORMER MULTIPOWER oil.
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❐
FUEL CONSUMPTION
average combined: it is determined by considering a
weighed covered distance of approximately 37%
The consumption values shown below refer only to
the vehicles used for carrying persons.
The fuel consumption values, illustrated in the table,
have been determined in accordance with the
homologation tests prescribed by the relevant
European Directives.
Consumption values are defined by means of the
following procedures:
❐
urban cycle: it involves a cold start followed by a
urban cycle and approximately 63% extra-urban
cycle.
IMPORTANT! The different types of route, traffic
conditions, weather conditions, driving style, general
conditions of the vehicle, body
versions/outfits/accessories, utilization of the air
conditioner, vehicle loaded conditions, roof-racks and
any other condition that may affect the vehicle’s drag
or rolling resistance will result in fuel consumption
values other than the detected ones.
simulated drive in the city street traffic;
❐
extra-urban cycle: it involves simulating a drive
outside a city with frequent accelerations in all the
gears; speed ranges from 0 to 120 kph;
Consumption according to the EC Directive 1999/100/CE
Natural gas Petrol Fuel distance
(m3x 100km) (litres x 100km) natural gas fuelling
Urban 11.5 11.9 323
Extra-urban 7.6 7.5 504
Average combined 9 9.1 419
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CO2 EMISSIONS
The CO2 emission values, shown in the table below, refer to the average
combined consumption.
CO
emissions according to the EC Directive 1999/100/CE (g/km)
2
Persons transport version:
Natural gas .................................................................................................. 161
Petrol ............................................................................................................ 216
FUSES
The Natural Power version makes use of special fuses to protect the
various components of the system.
Control unit next to the battery
To open, press the two locking tabs (A) and take the cover off.
The fuses protect:
1 - 7.5 A Fiat code control unit
2 - 10A ABS
3 - 20A Headlamp washing pump
Fuses on the passenger compartment partition wall.
The fuses protect:
4 - 7.5A Gas solenoid valves
5 - 5A Gas injection control unit
6 - 15A Electric injectors
7 - 5A + 15 CCM and Fiat code control unit
8 - 15A Oxygen sensor
9 - 10A Petrol pump
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Fiat Group Automobiles S.p.A. - Servizi al Cliente - Assistenza Tecnica
Ingegneria Assistenziale - Largo Senatore G. Agnelli, 5 - 10040 Volvera - Torino (Italia)
Print n° 603.83.424 - 1I/2007 - 1
st
Edition
ENGLISH
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