2009 FIAT DUCATO wheel torque

103
SAFETY
DEVICES
CORRECT USE
OF THE
VEHICLE
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
VEHICLE
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
DASHBOARD
AND CONTROLS
BRAKE ASSIST
(emergency braking assistance
integral with ESP) (where provided)
The system, which cannot be cut out, rec-
ognizes emergency braking (on the ground
of the brake pedal operation speed) and
considerably increases the pressure in the
brake circuit.
Brake Assist is deactivated on the versions
equipped with ESP, in the event of ESP sys-
tem failure (indicated by warning light
áswitching on together with the message
on the multifunction display, where pro-
vided).
ESP SYSTEM
(Electronic Stability
Program)
(where provided)
The ESP system is an electronic system
controlling the vehicle stability in the event
of tyre grip loss.
The ESP system is therefore particularly
useful when grip conditions of the road sur-
faces changes.
In addition to the ESP system, ASR system
and Hill Holder, (where provided) also the
MSR system (adjusting the engine braking
torque) and the HBA system (improving
the braking force during emergency brak-
ing) are provided.
ESP SYSTEM INTERVENTION
It is signalled by the blinking of the warn-
ing light áon the instrument panel, to in-
form the driver that the vehicle is in crit-
ical stability and grip conditions.
When the ABS cuts in, and
you feel the brake pedal pul-
sating, do not remove your foot, but
keep it pressed; in doing so you will
stop in the shortest amount of space
possible under the current road con-
ditions.
WARNING
EBD failure
EBD failure is indicated by the turning on
of warning lights
>and xon the in-
strument panel together with the dedi-
cated message on the multifunction dis-
play (where provided), (see section
“Warning lights and messages”).
In this case with sharp braking the rear
wheels might lock too early, with the pos-
sibility of skidding. Drive extremely care-
fully to the nearest Fiat Dealership to have
the system checked.
If warning light xalone
comes on (together with the
message on the multifunction display,
where provided), stop the vehicle im-
mediately and contact the nearest Fi-
at Dealership. Fluid leaks from the hy-
draulic system, in fact, can compro-
mise the braking system, both tradi-
tional systems and systems with ABS.
WARNING

104
SAFETY
DEVICES
CORRECT USE
OF THE
VEHICLE
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
VEHICLE
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
DASHBOARD
AND CONTROLS
ESP SYSTEM ACTIVATION
The ESP system is automatically activat-
ed when the vehicle is started and cannot
be de-activated.
FAILURE INDICATIONS
In the event of failure, the ESP system is
automatically disconnected, the warning
light
á, comes on with fixed light on the
instrument panel, together with the mes-
sage on the multifunction display (where
provided) (see section “Warning lights and
messages”) and with the button led ASR.
In this case contact a Fiat Dealership as
soon as possible.
Performance of the ESP sys-
tem, in terms of active safe-
ty should not induce the driver to take
pointless and unnecessary risks. The
style of driving must in any case al-
ways be adapted to the conditions of
the road surface, visibility and traffic.
Road safety is always the driver’s re-
sponsibility.
WARNING
HILL HOLDER SYSTEM
This system is an integral part of the ESP
system and it is provided to facilitate start-
ing on slopes.
It will activate automatically with the fol-
lowing conditions:
❒uphill: vehicle at a standstill on a road
with a gradient higher than 5%, engine
running, clutch and brake pedal
pressed, gearbox to neutral or en-
gaged gear other than reverse.
❒downhill: vehicle at a standstill on a
road with a gradient higher than 5%,
engine running, clutch and brake ped-
al pressed and reverse gear engaged.
At pickup the ESP system control unit will
keep brake force on wheels until reaching
the torque suitable for starting, or in any
case for max. 2 seconds in order to pass
easily from the brake pedal to the accel-
erator pedal.
After two seconds without starting, the
system will deactivate automatically by re-
leasing gradually the brake force.
At releasing, the typical brake disengage-
ment noise indicating that the vehicle is
going to move will be heard.Failure indications
System failure is indicated by the turning
on of warning light
á(see section “Warn-
ing lights and messages”).
IMPORTANT The Hill Holder system is
not a parking brake therefore, never leave
the vehicle without having engaged the
handbrake, turned the engine off and en-
gaged the first speed.
For correct operation of the
ESP and ASR systems, the
tyres must absolutely be of the same
brand and type on all wheels, in per-
fect conditions and, above all, of
type, brand and size specified.
WARNING

105
SAFETY
DEVICES
CORRECT USE
OF THE
VEHICLE
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
VEHICLE
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
DASHBOARD
AND CONTROLS
MSR system
(engine braking torque control)
It is an integral part of the ASR system that
in case of sudden gear shifting, cuts in pro-
viding torque to the engine thus prevent-
ing excessive driving wheel drive that, spe-
cially in poor grip conditions, can lead to
loss of stability.
Switching the systemon/off fig. 126
The ASR system switches on automatically
each time the engine is started.
When travelling, the ASR can be switched
off and on again by pressing switch Alo-
cated on the dashboard fig. 126. When the ASR is switched off this is
shown by the lighting up of the led on the
switch and by relevant message on the
multifunction display, where provided.
Versions equipped with ASR system on-
ly, at deactivation (ASR OFF) the warn-
ing light Vwill always stay on.
If the ASR is switched off when travelling,
it will turn on again automatically the next
time the engine is started.
When travelling on snowy roads with
snow chains, it may be helpful to turn the
ASR off: in fact, in these conditions, slip-
ping of the driving wheels when moving off
makes it possible to obtain better drive.
For correct operation of the
ESP and ASR systems, the
tyres must absolutely be of the same
brand and type on all wheels, in per-
fect conditions and, above all, of
type, brand and size specified.
WARNING
fig. 126F0N0077m
ASR SYSTEM (Antislip Regulator)
The ASR function controls vehicle drive
and cuts in automatically every time one
or both driving wheels slip.
According to slipping conditions, two dif-
ferent control systems are activated:
❒if slipping involves both driving wheels,
the ASR function intervenes reducing
the power transmitted by the engine;
❒if the slipping involves only one dri-
ving wheel, the ASR system cuts in au-
tomatically braking the wheel that is
slipping.
The action of the ASR is particularly help-
ful in the following circumstances:
❒slipping of the inner wheel due to the
effect of dynamic load changes or ex-
cessive acceleration;
❒too much power transmitted to the
wheels also in relation to the condi-
tions of the road surface;
❒acceleration on slippery, snowy or
frozen surfaces;
❒in the case of loss of grip on a wet sur-
face (aquaplaning).