2018 FIAT DOBLO COMBI petrol cap

VERSION WITH
METHANE SYSTEM
(Natural Power)
41) 42) 43)
8) 9) 10)
INTRODUCTION
The Fiat Doblò Natural Power version
features two fuel supply systems,
one for petrol and one for natural gas
(methane).
Selecting the type of fuel supply
Fiat Doblò Natural Power is configured
to run normally on methane.
When the methane is running out and
the pressure in the cylinder is close
to the correct operating limit, the
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. 87,
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.
IMPORTANT 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.
METHANE CYLINDERS
The vehicle is provided with 4 cylinders
with a capacity of 95 litres; for the
Cargo Maxi version (long wheelbase), a
5
thcylinder is available as an optional,
increasing the capacity to 130 litres.The cylinders are all located under the
floor and protected by special guards.
The cylinders fig. 88, fig. 89 and fig.
90 are the tank that contains methane
in compressed gaseous state (200
rated bar at 15 °C).
Canister capacity:
- Short wheelbase versions: approx.
16.15 kg
- Short wheelbase versions: approx.
22.1 kg.
The amount of methane depends on
the outside temperature, the supply
pressure, the quality of the gas and the
type of refuelling system. Overall
cylinder volume approximately 95 litres
(short wheelbase versions) and 130
litres (long wheelbase versions).
87F0V0587
88F0V0233
47

Cylinder certification
The methane cylinders are certified in
accordance with ECE Regulation no.
110.
The cylinders must be inspected, in
accordance with ECE Regulation
Procedure no. 110, every 4 years from
the vehicle registration date or in
accordance with specific regulations in
individual countries.PETROL/METHANE
SWITCH
This engine normally runs on methane
except during starting when it runs
on petrol. Switching to methane takes
place automatically and is shown on
the instrument panel display by
switching off the
signal in the display.
Methane fuel reserve
The level of methane in the cylinders is
indicated by the four vertical bars
near the word CNG on the instrument
panel display fig. 91. When the residual
amount of methane is lower than 1/5
of the capacity of the cylinders, the first
level and the edges of the bars of the
other 3 levels flash until the next
methane refuelling. A specific message
will appear on the display in addition
to an acoustic warning.
If the methane has run out, switching to
petrol takes place automatically:
for Euro 5 versions: on the
instrument panel display, first level plus
edges of the bars of the other three
levels keep blinking and the indicator
lights up near the CNG icon.
for Euro 6 versions: on the display,
all the empty segments stop flashing
and then the
indicator near the CNG
icon turns on.
If you specifically wish to run on petrol,
press the dedicated button fig. 87
located on the central tunnel. The LED
on the button switching on indicates
that the request for switching has taken
place correctly.
The actual change to the chosen fuel
system takes place depending on
the vehicle usage conditions to
guarantee switching in absolute safety
and will be confirmed by the
warning
light in the instrument panel display
coming on/going off.
In addition, in the case of starting at
outside temperatures of below around
-10°C, the switching times from Petrol
to Methane increase to allow the
pressure regulator/reduction unit to
become warm enough.
IMPORTANT If switching takes place
during acceleration or pick-up, there
may be a brief flat spot (drop in power).
89F0V0234
90F0V0235
91F0V0244
48
KNOWING YOUR VEHICLE

If they are open, they can cause the
system to send false signals: always
close the rear doors.
Do not apply stickers to the sensors.
WARNING
112)The sensor must be free of mud, dirt,
snow or ice in order for the system to
work. Be careful not to scratch or damage
the sensors while cleaning them. Avoid
using dry, rough or hard cloths. The
sensors must be washed using clean
water, with the addition of vehicle
shampoo if necessary. When using special
washing equipment such as high pressure
jets or steam cleaning, clean the sensors
very quickly keeping the jet more than
10 cm away.
113)Parking manoeuvres, however, are
always the driver’s responsibility. While
carrying out these manoeuvres, always
make sure that no people (especially
children) or animals are in the area
concerned. The parking sensor is designed
to assist drivers, who must still never
allow their attention to lapse during
potentially dangerous manoeuvres even if
performed at low speed.
REFUELLING THE
VEHICLE
PETROL ENGINES
Only use unleaded petrol, with an
octane number (R.O.N.) not lower than
95.
IMPORTANT Never use leaded petrol,
even in small amounts or in an
emergency, as this would damage the
catalytic converter beyond repair.
DIESEL ENGINES
Operation at low temperatures
Only use Diesel for motor vehicles
(EN590 specification).
In order to avoid these problems,
different types of Diesel are distributed
according to the season: summer
type, winter type and Arctic type (cold,
mountain areas). If refuelling with diesel
whose specifications are not suitable
for the usage temperature, it is
advisable to mix PETRONAS
DURANCE DIESEL ART additive in the
proportions shown on the container
with the fuel. Pour the additive into the
tank before the fuel.
When using or parking the vehicle for a
long time in the mountains or cold
areas, it is advisable to refuel using
locally available diesel fuel.In this case, it is also advisable to keep
the tank over 50% full.
28)
REFUELLING CAPACITY
To ensure that you fill the tank
completely, top up twice after the first
click of the fuel supply gun. Further
top-ups could cause faults in the fuel
feeding system.
FUEL TANK CAP
Opening
1) Open the flap A fig. 136 by pulling it
outwards, keep the cap B still, insert
the ignition key in the lock and turn
it anticlockwise.
2) Turn the cap anticlockwise and
remove it. The cap has a device C that
attaches it to the flap so it cannot be
lost. When refilling, attach the plug
to the flap, as shown.
136F0V0086
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Closing
1) Fit the cap (complete with key) and
turn it clockwise until it clicks once
or more.
2) Turn the key clockwise and extract it,
then close the flap.
The sealing may cause a slight pressure
increase in the tank. A little breathing
off, while slackening the cap is
absolutely normal.
29)
NATURAL POWER
VERSIONS
The methane filler is located near the
petrol filler
To access the filler, undo the cap fig.
137 turning it anticlockwise.
The profile of filler fig. 138 for refilling is
the universal type, compatible with
Italian and NGV1 standards.In some European countries adapters
are considered ILLEGAL (e.g. in
Germany).
For service stations with cubic metre
(m
3) nozzles (pressure differential)
the check valves must be released by
delivering a small amount of methane to
measure the residual pressure in the
cylinder.
The plates (provided with the vehicle
documentation) contain the date for the
first inspection of the cylinders.
30)
Fuel - Vehicle
compatibility
identification - Graphic
symbol for informing
consumers in
accordance with
EN16942
The symbols shown below facilitated
recognising the correct fuel type to
be used on your car. Before proceeding
with refuelling, check the symbols
inside the fuel filler flap (where provided)
and compare them with the symbols
shown on the fuel pump (where
provided).
Symbols for petrol powered 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
137F0V0239
138F0V0240
118
STARTING AND DRIVING

Symbols for diesel powered cars
B7: Diesel containing up to 7% (V/V) of
FAME (Fatty Acid Methyl Esters)
compliant with theEN590specification
B10: Diesel containing up to 10%
(V/V) of FAME (Fatty Acid Methyl Esters)
compliant withEN16734
Symbols for petrol/methane 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
CNG: Automotive methane and
bio-methane compliant withEN16723
WARNING
28)For diesel engines, use only 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.
29)Do not approach naked flames or lit
cigarettes to the fuel tank filler: fire risk.
Keep your face away from the fuel filler to
prevent breathing in harmful vapours.
30)Methane refuelling stations are not
authorised to refill the cylinders when the
inspection date has expired. The check
valve prevents the methane from flowing
back to the fuel filler.
TOWING TRAILERS
IMPORTANT
The vehicle must be equipped with a
type-approved tow hook and adequate
electrical system to tow trailers.
Installation should be carried out by
specialised personnel who will issue the
required papers for travelling on roads.
Install any specific and/or additional
door mirrors as specified by the
Highway Code.
Remember that when towing a trailer,
steep hills are harder to climb, braking
spaces increase and overtaking takes
longer depending on the overall weight.
Engage a low gear when driving
downhill, rather than constantly using
the brake.
The weight of the trailer on the vehicle
tow hook will reduce the loading
capacity of the vehicle by the same
amount.
119

REFUELLING
1.4 1.4 T-JET1.4 T-JET Natural
PowerRecommended fuels and original
lubricants
Fuel tank: 60 litres 60 litres 22 litres
Unleaded petrol not less than 95 RON
(EN 228 specification)
including a reserve of: 8–10 litres 8–10 litres 5.5 litres
Methane cylinder
capacity (1.4 T-JET
Natural Power):Long
wheelbase
versions
--16.15 kg (approx.)
Methane
(*)Short
wheelbase
versions22.1 kg (approx.)
Engine cooling system: 5 litres 5.8 litres 5.8 litresMixture of demineralised water and
50% PARAFLU
UP(**)
Engine sump: 2.35 litres/2kg 2.1kg
- SELENIA K P.E.
Engine sump and filter: 2.7 litres / 2.3 kg 2.45 kg
Engine sump (1.4 T-JET Natural
Power):- - 2.1 litres
SELENIA MULTIPOWER GAS 5W-40
Engine sump and filter (1.4 T-JET
Natural Power):- - 2.45 litres
(*) The amount of methane depends on the outside temperature, the supply pressure, the quality of the gas and the type of refuelling system. Overall cylinder
volume approximately 95 litres (short wheelbase versions) and 130 litres (long wheelbase versions).
(**) When the vehicle is used in particularly harsh weather conditions, we recommend using a 60-40 mixture of PARAFLU
UPand demineralised water.
190
TECHNICAL DATA