2012 FIAT BRAVO engine

EOBD SYSTEMThe EOBD system (European On Board
Diagnostic) is a diagnosis system installed on the
ECUs, which detects and reports possible
malfunctions in the electronic systems that could
worsen emissions.
The goal of the system is to:
❒monitor the system efficiency;
❒indicate an increase in emissions due to vehicle
malfunction;
❒indicate the need to replace components which
have deteriorated.It also alerts the driver, by turning on the warning
light
on the instrument panel (together with
relevant message on the display), when these
components are damaged; it can also report any
system malfunctions (see "Warning lights and
messages" chapter).
Note The car also has a connector that can be
interfaced with appropriate tools, which makes it
possible to read the error codes stored in the
electronic control units together with a series of
specific parameters for engine operation and
diagnosis. This check can also be carried out by the
traffic police.
IMPORTANT After an operation at the Fiat
Dealership, aimed at solving malfunctions linked to
the EOBD system, some bench tests should be
made, along with road tests if necessary, for a
complete check of the system. The latter may also
require the car to cover a long distance.
fig. 108
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"DUALDRIVE" ELECTRIC POWER
STEERING SYSTEMThe car is equipped with an electrically controlled
power steering system called “Dualdrive”, working
only with the ignition key at MAR-ON and the
engine running, that customises steering force
according to the driving conditions.
IMPORTANT When turning the ignition key quickly,
full power steering functionality can be achieved
after 1-2 seconds.
ACTIVATION/DEACTIVATION (CITY
function)
(for versions/markets, where provided)
To turn the function on/off, press button A fig. 111
on the dashboard, next to the steering wheel.The activation of the function is signalled by the
word CITY on the display (in some versions it
is signalled by the switching on of the warning light
CITY).
When the CITY function is on, the steering wheel
effort is lighter and parking operations are easier:
therefore this function is particularly useful for
driving in city centres.
FAILURE INDICATIONS
Any failure of the electric power steering system is
indicated by instrument panel warning light
coming on together with a message on the
display (on some versions together with a symbol
on the display) (see “Warning lights and messages”
chapter).
In the event of electric power steering system
failure, the car can be driven with mechanical
steering.
SPORT FUNCTION
(for versions/markets, where provided)
The vehicle may be equipped with a system that
allows a choice between two styles of driving,
normal and sports.
Pressing the SPORT button fig. 112 produces a
sporty driving setting characterised by higher
acceleration response and more effort required at
the steering wheel for a sporty driving sensation.
fig. 111
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Pressing the SPORT button also activates the
turbocharger supercharging function (overboost).
Via this function the engine management control
unit allows - in relation to the position of the
accelerator pedal and for a limited time - maximum
pressure levels to be reached inside the
turbocharger, with a consequent increase in engine
torque with respect to that which is normally
possible.
This function is particularly useful whenever
maximum performance is required for a short time
(e.g. when overtaking).
The letter S is lit up in the instrument panel display
when the function is switched on. Press the button
again to switch the function off and restore the
normal driving setting.
IMPORTANT When the SPORT button is pressed,
the function is activated about 5 seconds later.IMPORTANT During acceleration, when the
SPORT function is used the steering may shudder
which is typical of a sports setting.
IMPORTANT During parking manoeuvres requiring
a lot of steering, the steering may become harder;
this is normal and is due to the intervention of
the system to protect the electric steering motor
from overheating; so, no intervention is required.
When the car is used again later on, the power
steering will work normally.
Acceleration
Sudden acceleration has a very negative effect on
fuel consumption and emissions: accelerate
gradually to contain consumption.
When the SPORT function is used the consumption
figures will be slightly higher than those stated.
WARNING
Under no circumstances should
aftermarket operations involving
steering system or steering column
modifications (e.g.: installation of anti-theft
device) be carried out that could badly affect
performance and safety.This also causes the
warranty to become null and void and results
in vehicle non-compliance with type-approval
requirements.
fig. 112
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WARNING
Before starting any servicing operation,
stop the engine and remove the key
from the ignition switch to operate the
steering lock, particularly when the wheels do
not touch the ground. If this is not possible
(for example if the key needs to be turned to
MAR-ON or the engine must be running),
remove the main fuse that protects the
electric power steering.
TYRE PRESSURE MONITORING
SYSTEM TPMS(Tyre Pressure Monitoring System)
(for versions/markets, where provided)
The car may be fitted with a tyre pressure
monitoring system (TPMS), which informs the
driver of the tyre inflation status via the "Check
tyre pressure" and "Low tyre pressure" messages
on the display. For a detailed description of the two
messages, see "Warning lights and messages"
chapter. This system comprises a radio frequency
transmitter fitted to each wheel (on the wheel rim
inside the tyre), which is able to send information
on the tyre inflation pressure of each wheel to
the control unit.
WARNING
The presence of TPMS does not
exonerate the driver from regularly
checking the pressure of the tyres and the
spare wheel (see "Wheels" in the
"Maintenance and care" chapter).
WARNING
Sensor malfunctioning fault indications are not
stored and will therefore not be displayed after the
engine has been switched off and then on again. If
the fault conditions persist, the control unit will
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❒The performance of the parking assistance
system may also be affected by the position of
the sensors. For example, if the geometry is
altered (as a result of wear of the shock
absorbers, suspension), the tyres are changed,
the vehicle is too heavily laden or specific tuning
is carried out that lowers the vehicle.
❒The detection of obstacles at the top part of the
car may not be guaranteed because the system
detects obstacles that could cause an impact with
the car in the bottom part.
AT THE FILLING STATIONPETROL ENGINES
Use unleaded petrol only, with octane number
(R.O.N.) not lower than 95.
To avoid mistakes, the diameter of the fuel filler is
too small to introduce the nozzle of leaded petrol
pumps.
IMPORTANT An inefficient catalytic converter
leads to harmful exhaust emissions, thus
contributing to air pollution.
IMPORTANT Never use leaded petrol, even in
small amounts or in an emergency, as this would
damage the catalytic converter beyond repair.
MOTORI DIESEL - Operation at low
temperatures
If the outside temperature is very low, diesel
thickens due to the formation of paraffin clots with
consequent defective operation of the fuel supply
system.
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 fuel
whose specifications are not suitable for the
current temperature, it is advisable to mix TUTELA
DIESEL ART additive in the proportions shown on
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the container with the fuel. Pour the additive into
the tank before the diesel 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.
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 star t the engine
and empty the tank. If the engine has been run,
even for only a very short time, you will need
to have the entire fuel system emptied in
addition to the tank.
REFUELLING CAPACITY
To fill the tank completely, top-up twice after the
first click of the fuel delivery gun. Further top-ups
could cause faults in the fuel feeding system.FUEL FILLER CAP
Opening fig. 116
Open flap A pulling it outwards, hold cap B still,
insert the ignition key in the lock and turn it
anticlockwise.
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 cap to the
flap, as shown.
Closing
Fit the cap (complete with key) and turn it
clockwise until it clicks once or more.
Turn the key clockwise and extract it, then close
the flap.
IMPORTANT The airtight sealing of the tank may
cause a slight vacuum. A suction noise when you
release the cap is therefore entirely normal.
fig. 116
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WARNING
Do not bring naked flames or lit
cigarettes near to the fuel tank
opening: fire risk. Keep your face away from
the fuel filler to prevent breathing in harmful
vapours.
PROTECTING THE ENVIRONMENTThe following devices are used for reducing petrol
fuel engine emissions:
❒three-way catalytic converter (catalytic
converter)
❒oxygen sensors
❒evaporation control system.
In addition, do not let the engine run, even for a
test, with one or more spark plugs disconnected.
The following devices are used for reducing diesel
fuel engine emissions:
❒oxidising catalytic converter
❒exhaust gas recirculation system (EGR)
❒particulate filter (DPF).
WARNING
The catalytic converter develops high
temperature during operation. Do
not park the car on grass, dry leaves, pine
needles or other flammable material: fire
hazard.
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DIESEL PARTICULATE FILTER (DPF)
(for versions/markets, where provided)
The Diesel Particulate Filter is a mechanical filter,
integral with the exhaust system, that physically
traps particulates present in the exhaust gases of
diesel engines. The diesel particulate filter has been
adopted to eliminate almost all particulates in
compliance with current / future legal regulations.
During normal use of the vehicle, the engine
control unit records a set of data (e.g.: travel time,
type of route, temperatures, etc.) and it will then
calculate how much particulate has been trapped by
the filter.
Since this filter physically traps particulate, it should
be regenerated (cleaned) at regular intervals by
burning the carbon particles. The regeneration
procedure is controlled automatically by the engine
management control unit according to the filter
conditions and vehicle use conditions. There may
be a limited increase in the engine speed during the
regeneration, a limited increase in fumes and high
temperatures at the exhaust. These are not faults;
they do not impair vehicle performance or damage
the environment.Particulate filter clogged
If the warning light switches on on the instrument
panel (along with the message on the display)
refer to the "Warning lights and messages" chapter.
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