wheel torque FIAT GRANDE PUNTO 2007 199 / 1.G Owners Manual

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 thus supporting the driver to
obtain prompt and effective braking.
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 car 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.
ABS SYSTEM INTERVENTION
It is signalled by the blinking of the warn-
ing light
áon the instrument panel, to in-
form the driver that the car is in critical
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
92
SAFETY
DEVICES
CORRECT USE
OF THE CAR
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
DASHBOARD
AND CONTROLS
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 car imme-
diately and contact the nearest Fiat
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
089-108 Punto GDX GB 20-07-2007 9:41 Pagina 92

ESP SYSTEM ACTIVATION
The ESP system is automatically activat-
ed when the car 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
OFF. In this case contact a Fiat Dealer-
ship 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
93
SAFETY
DEVICES
CORRECT USE
OF THE CAR
WARNING
LIGHTS AND
MESSAGES
IIN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
DASHBOARD
AND CONTROLS
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: car at a standstill on a road with
a gradient higher than 5%, engine run-
ning, clutch and brake pedal pressed,
gearbox to neutral or engaged gear oth-
er than reverse.
❒Downhill: car at a standstill on a road
with a gradient higher than 5%, engine
running, clutch and brake pedal 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 car is go-
ing to move will be heard.FAILURE INDICATIONS
System failure is indicated by the turning
on of warning light *on the instrument
panel with digital display and warning light
áon the instrument panel with multi-
function display (where provided) (see
section “Warning lights and messages”).
IMPORANT The Hill Holder system is not
a parking brake therefore, never leave the
car without having engaged the handbrake,
turned the engine off and engaged 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
089-108 Punto GDX GB 20-07-2007 9:41 Pagina 93

94
SAFETY
DEVICES
CORRECT USE
OF THE CAR
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
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. 113
The ASR system switches on automatically
each time the engine is started.
When travelling, the ASR can be switched
off and on again pressing button Aset on
the dashboard fig. 113.
When the ASR is switched off this is
shown by the lighting up of the led on the
button and by relevant message on the
multifunction display, where provided.
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. 113
ASR
OFF
F0M0109m
ASR SYSTEM (Antislip Regulator)
The ASR function controls car 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 driving
wheel, the ASR system cuts in auto-
matically braking the wheel that is slip-
ping.
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 conditions
of the road surface;
❒ acceleration on slippery, snowy or
frozen surfaces;
❒ in the case of loss of grip on a wet sur-
face (aquaplaning).
089-108 Punto GDX GB 20-07-2007 9:41 Pagina 94