engine FIAT DOBLO COMBI 2015 2.G Service Manual

START&STOP
SYSTEM
IN BRIEF
The Start&Stop device
automatically stops the engine
each time the vehicle is stationary
and starts it again when the driver
wants to move off.
This improves the efficiency of the
vehicle by reducing fuel
consumption, the emission of
harmful gases and noise pollution.
OPERATING MODE
Engine stopping mode
WITH MANUAL GEARBOX
With the vehicle stationary, the
engine stops with the gearbox in
neutral and the clutch pedal
released.WITH ROBOTIZED GEARBOX
The engine cuts out if the vehicle
stops with the brake pedal pressed.
This condition can be maintained
even if the brake pedal is not
depressed, if the gear lever is in
position N.
NOTE: The engine can only be
stopped automatically after a speed
of about 10 km/h is reached, to
prevent the engine from being
repeatedly stopped when driving at
walking pace.
The engine being stopped is
signalled by the fig. 140 icon on the
display, depending on the trim
level.Engine restarting
mode
WITH MANUAL GEARBOX
Depress the clutch pedal to restart
the engine.
WITH ROBOTIZED GEARBOX
If the gear lever is in position N,
place it in any other gear, otherwise
release the brake pedal or move
the gear lever to (+), (–) or R.
MANUAL ACTIVATION
AND DEACTIVATION
The device can be activated/
deactivated via button A fig. 141
located to the side of the
handbrake.
The deactivation is signalled when
the LED on the button switches on.
In addition, on the versions where
provided, additional information
concerning the deactivation or
activation of the Start&Stop is given
through a message in the display.
140F0V0040
140
STARTING AND DRIVING

ENGINE STOPPING
FAILURE CONDITIONS
With the device activated, for
reasons of comfort, limiting
emissions and safety, the engine
does not stop in certain conditions,
including:
❒engine still cold;
❒particularly cold external
temperatures, if the corresponding
indication is provided;
❒battery not sufficiently charged;
❒particulate filter regeneration in
progress (diesel engines only);
❒driver's door not shut;
❒driver's seat belt not fastened;
❒reverse gear engaged (for example,
for parking manoeuvres);❒automatic climate control, if a
suitable thermal comfort level has not
yet been reached or MAX-DEF
function activation;
❒during the first period of use, to
initialise the system.
In the above cases, the warning light
flashes fig. 103 and, where
available, there is a message in the
display.
RESTARTING
CONDITIONS
For reasons of comfort, limiting
harmful emissions and safety
purposes, the power unit can restart
automatically without any action by
the driver if certain conditions are
met, including:
❒battery not sufficiently charged;
❒reduced braking system vacuum
(e.g. if the brake pedal is pressed
repeatedly);
❒vehicle in motion (e.g. when driving
on roads with a gradient);
❒stopping the engine through the
Start&Stop system for more than
about three minutes.❒automatic climate control system for
adjusting the thermal comfort level or
to enable MAX-DEF function.
With a gear engaged, the engine
can be automatically restarted only
by fully depressing the clutch pedal.
The driver is asked to perform this
operation through the warning
light flashing in the instrument panel
fig. 103 and, where provided, the
message in the display.
N.B.: If you stall the engine, for
example by releasing off the clutch
pedal quickly when in gear, if the
Start&Stop system is activated, the
engine can be restarted by fully
depressing the clutch pedal or by
putting the gear lever into neutral.
N.B.: If the clutch is not depressed
when the three minutes have
elapsed since the engine was
stopped, the engine can only be
restarted using the key.
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141

SAFETY FUNCTIONS
In engine cut-out conditions through
the Start&Stop system, if the driver
unfastens his/her seat belt and
opens the driver's door or the
passenger door, the engine can be
restarted only by using the key.
The driver is notified of this condition
by a buzzer, through the fig. 140
warning light flashing in the
instrument panel and, where
provided, by a message in the
display.
"ENERGY SAVING"
FUNCTION
(for versions/markets, where
provided)
If, after the engine has been
automatically restarted, the driver
does not take any action for a
period of about 3 minutes,
the Start&Stop system will
definitively stop the engine to avoid
fuel consumption.
The engine can only be started
using the key in such cases. N.B.: In
any case, it is possible to keep the
engine running by deactivating
the Start&Stop system.IRREGULAR
OPERATION
In the case of malfunctions the
Start&Stop system is disabled.
The driver is informed of the
problem by the general failure
warning light A fig. 142, where
provided, coming on with an
information message and the
system failure symbol B fig. 142 in
the control panel. In this case,
contact a Fiat Dealership.VEHICLE INACTIVITY
Versions with dummy
pole fig. 143
If the vehicle is inactive, special care
must be taken to disconnect the
battery electrical power supply. This
procedure must be carried out by
disconnecting the rapid-release
negative terminal A from the
negative dummy pole B because
there is a battery status monitoring
sensor D on the negative battery
terminal C which must never be
disconnected, except if the battery
is replaced.
142F0V0041
143F0V0042
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Versions without
dummy pole fig. 144
In the event of vehicle inactivity,
special attention must be paid to the
disconnection of the battery power
supply.
Proceed as follows: detach the
connector A (by pressing button B)
from sensor C for monitoring the
status of the battery installed on the
negative battery pole D. This sensor
should never be disconnected
from the pole except if the battery is
replaced.
81)
EMERGENCY
STARTING
In the case of emergency starting,
never connect the negative lead
(–) of the auxiliary battery to the
negative pole C of the vehicle
battery, but rather to either the
dummy pole B or to an
engine/gearbox earth point fig. 145.
82) 83) 84) 85)
WARNING
81) If the battery needs to be
replaced, always contact a Fiat
Dealership. Replace the battery
with a new one of the same type
and specifications.
82) Before opening the bonnet,
make sure that the vehicle is
switched off and the key is in the
OFF position. Please follow the
instructions on the decal near the
front crossmember. It is advisable
to extract the key when there
are other people in the vehicle.
83) The vehicle should always be
evacuated after the key has been
removed or turned to the OFF
position. When refuelling, make
sure that the vehicle is switched
off with the key in the OFF
position.
144F0V0218
145F0V0043
143

84) For vehicles with robotised
gearbox, in the event of automatic
engine stopping with the vehicle
on a slope, the engine should
be restarted by moving the gear
lever towards (+) or (–) without
releasing the brake pedal. For
vehicles with robotised gearbox
and Hill Holder function, in the
event of automatic engine
stopping with the vehicle on a
slope, the engine must be
restarted by moving the gear lever
towards (+) or (–) without
releasing the brake pedal, so that
the Hill Holder function, active
only with the engine running,
becomes available.
85) If climate comfort is to be
favoured, the Start&Stop system
can be disabled, for a continuous
operation of the climate control
system.TPMS (Tyre
Pressure
Monitoring System)
(for versions/markets, where
provided)
86) 87) 88) 89) 90) 91) 92) 93) 94)
DESCRIPTION
The tyre pressure monitoring system
(TPMS) warns the driver of low tyre
pressure on the basis of the cold
inflation pressure prescribed for the
vehicle.
Changes in outside temperature
may cause tyre pressure to vary.
This means that a decrease in the
outside temperature corresponds to
a decrease in the tyre pressure.
Tyre pressure must always be
adjusted according to the cold
inflation pressure. Cold tyre inflation
pressure is the tyre pressure after
letting the vehicle stand for at least
three hours or a travel shorter than
1.6 km after an interval of three
hours.
The cold tyre inflation pressure must
not exceed the maximum inflation
pressure value printed on the side of
the tyre.The tyre pressure also increases
while driving the vehicle: this is
a normal condition and does not
require any adjustment of the
pressure.
NOTE❒The TPMS does not replace the
normal tyre maintenance service and
does not indicate any fault in a tyre.
❒Therefore, the TPMS should not be
used as pressure switch while
adjusting the tyre inflation pressure.
❒Driving with insufficient tyre pressure
causes their overheating and can
result in tyre failure. The low inflation
pressure reduces fuel efficiency
and tyre tread life and may also affect
handling and braking performance
of the vehicle.
❒The TPMS does not replace the
correct tyre maintenance. It is up to
the driver to maintain the correct tyre
pressure level measuring it with a
suitable pressure switch. This is
necessary even if the decrease in the
inflation pressure value does not
cause the tyre pressure control
warning light to switch on.
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❒The TPMS warns the driver of any
condition of insufficient tyre pressure
If this drops below the insufficient
pressure limit for any reason including
low temperature and normal
pressure loss of the tyre.
❒The seasonal temperature changes
affect tyre pressure.
The TPMS uses wireless devices
with electronic sensors mounted on
the wheel rims to constantly monitor
the value of tyre pressure. The
sensors mounted on each wheel as
part of the valve stem transmit
various information of the tyres to
the receiver module, in order to
calculate the pressure.
IMPORTANT Monitoring and
maintaining the correct pressure in
all four tyres are particularly
important.
Tyre pressure
monitoring system low
pressure warning
The system warns the driver if one
or more tyres are flat by switching
on the warning light
on the
instrument panel (together with a
warning message and an acoustic
signal).The TPMS continues to advise the
driver of the low tyre pressure
condition until this is corrected; the
warning continues until the pressure
corresponds or exceeds the
pressure prescribed for the cold
tyres. When the tyre low pressure
control warning light
switches on
constantly, the inflation pressure
must be adjusted until it reaches the
pressure prescribed for cold tyres.
After the automatic update of the
system, the tyre pressure control
warning light switches off. You may
need to drive the vehicle for about
20 minutes at a speed higher than
20 km/h to allow the TPMS to
receive this information.
IMPORTANT In the case of deflation
of more than one tyre sequentially,
without switching off and on the
engine, from the second tyre
involved the acoustic signal is not
activated, only the dedicated signal
is shown on the display.To prevent the signal from being
stored in the event of pressure loss
of a subsequent tyre (with
deactivation of the acoustic signal),
the ignition key must be turned to
MAR and then to STOP, each time
pressure is restored.
TPMS operation faults
The system fault is indicated by
warning light
which first flashes
for 75 seconds and then stays
on steadily. This can occur in any of
the following situations:
❒interference caused by electronic
devices or radio frequency emissions
similar to those of the TPM sensors.
❒Application of tinted films which
interfere with the signals of the radio
waves.
❒Presence of snow or ice on the
wheels or the wheel arches.
❒Use of snow chains.
❒Use of wheels/tyres not equipped
with TPM sensors.
❒The space-saver wheel is not
equipped with the tyre pressure
control sensor. Therefore, the tyre
pressure is not controlled by the
system.
145

Reducing the stored
speed
This can be done in two ways:
❒by deactivating the device and then
storing the new speed
or
❒by moving the stalk downwards (-)
until the new speed, which will
automatically remain memorised, is
reached.
Each movement of the stalk will
correspond to a slight reduction in
speed of about 1 km/h, while
keeping the stalk held downwards
will decrease the speed
continuously.
Deactivating the
device
The device can be switched off by
the driver in the following ways:
❒by turning ring nut A to the
OFF position;
❒if the engine is stopped (leaving the
stalk ring nut at ON), when the
ignition key is next turned to ON,
Cruise Control will be activated
automatically.
Deactivating the
function
The device can be switched off by
the driver in the following ways:
❒by pressing the brake pedal when the
device is adjusting the speed:
❒by pressing the clutch pedal when
the device is adjusting the speed;
❒by pressing button B fig. 146 when
the device is adjusting the speed
(for versions/markets, where
provided);
❒by pressing the accelerator pedal (in
this case the system is not actually
turned off but the acceleration
request takes priority; the cruise
control remains activated, without the
need to the press button B fig. 146
to restore the previous conditions
once the acceleration is over).
The device is automatically switched
off in the following cases:
❒if the ABS or ESC systems intervene
❒with the vehicle speed below the
set limit
❒in the event of system failure.
WARNING
95) When travelling with the device
active, never move the gear lever
to neutral.
96) In the event of device faults or
failures, turn the ring nut A to
OFF and contact a Fiat
Dealership.
149

TRACTION PLUS
SYSTEM
(for versions/markets, where
provided)
Traction Plus is a driving aid, useful
for setting off in poor grip conditions
(snow, ice, mud, etc.) which allows
the drive force to be distributed in
the best way over the front axle
when one wheel is slipping.
Traction Plus acts by braking the
wheels with poor grip (or those
slipping more than the others),
thereby transferring the drive force
to those which have greater grip on
the ground.
This function can be activated
manually by pressing the A fig. 147
button on the control panel and
operates under 50 km/h. When this
speed is exceeded, it is
automatically deactivated and it is
reactivated again when the speed
falls below 50 km/h.Traction Plus
operation
The system is deactivated when
starting. To activate the Traction Plus
system press the A fig. 147 button.
The activation of the Traction Plus
system involves the following
functions being switched on:
❒inhibition of the ASR function, in
order to fully exploit the engine
torque;
❒the differential locking effect on the
front axle, through the braking
system, to improve traction
on irregular grounds.
If the Traction Plus system is faulty,
the
warning light on the
instrument panel switches on
constantly.
PARKING SENSORS
These are located in the rear
bumper fig. 148 and their function is
to inform the driver, through an
intermittent beeping noise, about
the presence of obstacles behind
the vehicle.
ACTIVATION
The sensors are automatically
activated when reverse is engaged.
As the obstacle behind the vehicle
gets closer to the bumper, the
frequency of the acoustic signal
increases.
147F0V0575
148F0V0077
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❒The performance of the parking
assistance system may also be
affected by the position of the
sensors. For example by a change in
the ride setting (caused by the wear
of the shock absorbers, suspension),
changing the tyres, overloading the
vehicle and carrying out specific
tuning operations that require the
vehicle to be lowered.
❒Detection of obstacles in the upper
part of the vehicle (particularly in the
case of vans or chassis cabs) may
not be guaranteed because the
system detects obstacles that could
strike the lower part of the vehicle.
❒The parking sensors work properly
with the swing doors closed.
❒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
97) The sensors must be clean of
mud, dirt, snow and 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 car 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.
98) 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 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.
DIESEL ENGINES
Operation at low
temperatures
If the outside temperature is very
low, the diesel thickens due to the
formation of paraffin clots with
consequent defective operation of
the fuel supply system.
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IMPORTANT
22) 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 refuel
with another type of fuel, do not
start the engine, and drain the
tank. If the engine has run, even
for a very short time, you will need
to have the entire fuel supply
system emptied in addition to the
tank.
23) Do not bring naked flames or lit
cigarettes near the fuel tank filler:
fire risk. Keep your face away
from the fuel filler to prevent
breathing in harmful vapours.
SAVING FUEL
Some useful tips are given below for
fuel saving and reducing harmful
emissions of CO2 and other
pollutants (nitrogen oxides, unburnt
hydrocarbons, Particulate Matter
(PM), etc.).
PRACTICAL ADVICE
FOR REDUCING FUEL
CONSUMPTION AND
HARMFUL EMISSIONS
Vehicle conditions
❒Have checks and adjustments for
vehicle maintenancecarried out
in accordance with the “Scheduled
servicing plan”.
❒Checktyrepressure regularly, at
least once every four weeks.
Excessively low pressures will
increase consumption because
rolling resistance will be higher. In
addition, this wears the tyre more
quickly and impairs performance.
❒Only usesnow tyreswhen
the weather conditions make them
absolutely necessary. They increase
consumption and noise.❒Do not travel witha heavy load: the
weight of the vehicle (especially when
driving in town) and its geometry
greatly affect fuel consumption and
stability.
❒Removeroof racks or ski racks
after use. These accessories reduce
the vehicle's aerodynamic
penetration and have a negative
effect on fuel consumption.
❒When transporting particularly large
objects, use atrailerif possible.
❒Use the vehicle's air vents if possible:
travelling with the windows open
impairs aerodynamics.
❒Use electrical devices only for the
amount of time needed. The vehicle’s
heated rear window, additional
headlights, screen wipers and heater
fan require a considerable amount
of energy; this increases fuel
consumption (by up to +25% in an
urban cycle).
❒Air conditioning leads to higher fuel
consumption (on average up to
+30%). If the temperature outside is
not too extreme, try and use the
air vents.
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