wheel torque FIAT LINEA 2008 1.G Owners Manual

93
SAFETY
DEVICES
CORRECT USE
OF THE
CAR
WARNING
LIGHTS AND
MESSAGES
IN AN
EMERGENCY
CAR
MAINTENANCE
TECHNICAL
SPECIFICATIONS
INDEX
DASHBOARD
AND CONTROLS
BRAKE ASSIST
(integrated ESP emergency
braking assistance)
(where provided)
This system (which cannot be deactivat-
ed) recognises emergency braking condi-
tions according to the speed of operation
of the brake pedal and provides an addi-
tional hydraulic braking pressure to sup-
port that provided by the driver. This al-
lows faster and more power operation of
the braking system.
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 multifunctional 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
inform the driver that the car is in criti-
cal 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
ABS failure is indicated by the turning on
warning lights
>and xon the instru-
ment panel together with the dedicated
message on the multifunctional display
(where provided), (see section “Warning
lights and messages”).
In this case, the rear wheels may sudden-
ly lock and the car may swerve. Drive
carefully to the nearest Fiat Dealership to
have the system checked.
If warning light xonly lights
up on the instrument panel
(with a message on the multifunc-
tional display, where provided), stop
the car immediate and go to the
nearest Fiat Dealership. Leakage of
hydraulic fluid from the braking sys-
tem will compromise functionality of
the braking system, either of the con-
ventional type or with ABS.
WARNING
091-102 LINEA 1ed GB 3-09-2008 17:29 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
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 a failure, the In ESP will be
automatically switched off and warning
light
áwill appear on the instrument pan-
el along with a message on the multifunc-
tional display (where provided) (see
“Warning lights and messages”). The LED
on the ASR OFF button will light up. Con-
tact Fiat Dealership as soon as possible.
Do not take unnecessary
risks, even if your cars fits an
ESP system. Your driving style must
always be suited to the conditions of
the road, visibility and traffic. The dri-
ver is always and only responsible for
road safety.
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: 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 2 seconds without starting, the sys-
tem 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
Warning light
èon the instrument pan-
el will light up in the event of a failure (see
“Warning lights and messages”).
IMPORTANT The Hill Holder system is
not a parking brake therefore, never leave
the car without having engaged the hand-
brake, 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
091-102 LINEA 1ed GB 3-09-2008 17:29 Pagina 94

95
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. 100
The ASR system switches on automatically
each time the engine is started.
When travelling, the ASR can be switched
off and on again pres100. 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.
It may be useful to switch the ASR when
driving on snow-covered roads with snow
chains fitted: in these conditions, slipping
of the wheels during pick-up provides bet-
ter traction.
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. 100
ASR
OFF
A
F0R0218m
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).
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