2006 Alfa Romeo 147 Owner handbook (in English)

GETTING TO KNOW YOUR CAR
135
Always take due car when braking on
bends, even with the help of the ABS.
The most important advice of all, howev-
er, is this:
Following these instruction you will be in
the best braking condition under all circum-
stances.
IMPORTANTCars fitted with ABS may
only be fitted with the wheel rims, tyres and
brake linings of type and brand approved by
the Manufacturer.
The system is completed by the EBD (Elec-
tronic Brake Distributor) which distributes
the braking action through the control unit
and the ABS system sensors.IMPORTANTIf the battery is run down
the
>andxwarning lights might turn
on when starting the engine and go off af-
ter starting. This should not be considered
as a fault but as a warning that during start-
ing the ABS is not active. The turning off
of the warning lights ensures normal system
operation.
When the ABS cuts in, and
you feel the pulsing on the
pedal, do not lighten the pressure,
but keep the pedal firmly pressed
with no fear; this way you will
stop in the least space possible,
compatibly with the conditions of
the road surface.
WARNING
The car is fitted with an
electronic braking distribu-
tor (EBD). If the
>andxwarn-
ing lights turn on simultaneously
with the engine running, this indi-
cates an EBD system failure; in this
case with sharp braking the rear
wheels might lock too early, with
the possibility of skidding. Driving
extremely carefully, go to the near-
est Alfa Romeo Authorised Service
to have the system checked.
WARNING
The turning on of only the
>warning light with the
engine running normally indicates a
fault to the ABS system only. In this
case the braking system is still ef-
ficient, though without the aid of
the anti-lock device. Under these
conditions performance of the EBD
system may be reduced. In this case
too, you areadvised to go immedi-
ately to the nearest Alfa Romeo
Authorised Service to have the sys-
tem checked over, driving in such
a way as to avoid sharp braking.
WARNING
If the low brake fluid lev-
el
xwarning light turns
on, stop the car immediately and
contact the nearest Alfa Romeo
Authorised Service. Any loss of
fluid from the hydraulic system
will negatively affect the opera-
tion of the braking system be it of
the conventional type or of the
type with ABS.
WARNING

GETTING TO KNOW YOUR CAR
136
VDC SYSTEM
(Vehicle Dynamics Control)
The VDC is an electronic system that con-
trols vehicle stability, intervening on the dri-
ving torque and braking the wheels in a dif-
ferentiated manner, in the lack of grip, it
helps to bring the car back to the correct
direction.
When travelling the car is subjected to lat-
eral and longitudinal forces which can be
controlled by the driver as long as the tyres
offer adequate roadholding; when this falls
below the minimum level, the car begins
to divert from the course required by the dri-
ver.
Especially when travelling on an uneven
surface (such as paving, or due to the pres-
ence of water, ice or soil), changes in speed
(acceleration or braking) and/or course
(bends or the need to avoid obstacles) may
cause the tyres to lose grip.
When the sensors detect the conditions
that would lead to skidding, the VDC system
intervenes on the engine and on the brakes
producing a stabilising torque.
HOW THE VDC
SYSTEM WORKS
The VDC system is engaged automatical-
ly when the car is started and cannot be
switched off.
The basic components of the VDC system
are:
– an electronic control unit that process-
es the signals received from the various sen-
sors and brings about the most appropriate
strategy;
– a sensor that detects the position of the
steering wheel;
– four sensors that detect the turning
speed of each wheel;
– a sensor that detects rotation of the car
around its vertical axis;
– a sensor that detects lateral acceleration
(centrifugal force).
The heart of the VDC system is the VDC
control unit, which with the data supplied
by the sensors installed on the car calculates
the centrifugal forces generated when the
car is cornering. The yawing sensor, which
originates from the aeronautical industry, de-
tects the rotations of the car around its own
vertical axis. The centrifugal forces gener-
ated when the car is cornering are detect-
ed by a highly sensitive lateral acceleration
sensor. The VDC system helps the driver to keep
the car under control in the event of a loss
of tyre grip.
The forced induced by the VDC system to
control the loss of vehicle stability always
depend on the grip between the tyre and
the road surface.
The performance of the
system, in terms of active
safety should not induce the driver
to take pointless and unnecessary
risks. The style of driving must in
any case always be adapted to the
conditions of the road surface, vis-
ibility and traffic. The responsibil-
ity for road safety is always and
in any case the driver’s.
WARNING

GETTING TO KNOW YOUR CAR
137
The stabilising action of the VDC system is
based on the calculations of the system elec-
tronic control unit, which processes the sig-
nals received from the steering wheel rota-
tion sensor, acceleration sensor and rotation
speed sensor of ech wheel.These signals al-
low the control unit to recognise the ma-
noeuvre the driver intends to do when the
steering wheel is turned.
The control unit processes the information
received from the sensors and therefore able
to know the position of the car instant by in-
stant and compare it with the course the dri-
ver would like to follow. In the event of a
discrepancy, in a fraction of a second the
control unit chooses and commands the
most suitable intervention to bring the car
immediately back to the required course:
braking one or more wheels at different in-
tensity and, if necessary, reducing the pow-
er transmitted by the engine.
The corrective actions are modified and
controlled continuously in seeking the course
required by the driver.
The action of the VDC system considerably
enhances the active safety of the car in very
critical situations and it is particularly help-
ful when the grip conditions of the road sur-
face change.CUTTING IN
OF THE VDC SYSTEM
The cutting in of the VDC system is indi-
cated by the flashing of the
áwarning light
on the instrument cluster, to inform the dri-
ver that the car is in critical conditions of sta-
bility and grip.
VDC system failure warning
In the event of a failure the VDC system
disengages automatically and the
áwarn-
ing light on the instrument cluster turns on
glowing steadily, together with the message
on the reconfigurable multifunction display.
In the event of a VDC system failure the
car behaves like a vehicle not fitted with this
system: in any case it is advisable to con-
tact Alfa Romeo Authorised Services as soon
as possible.
For the VDC system to
work correctly, the tyres
must be of the same brand and
type on all wheels, in perfect con-
ditions and above all of the speci-
fied type, brand and size.
WARNING

GETTING TO KNOW YOUR CAR
138
SWITCHING ON
THE ASR FUNCTION
The ASR function switches on automati-
cally each time the engine is started.
When travelling the device can be switched
off and on again pressing switch (A-
fig. 136) on the centre console.
Function disconnection is shown by the rel-
evant led on the switch itself being turned
on and by the dedicated message displayed
on the re-configurable multifunction display.
Should the function be disconnected when
running, it will automatically be activated
again at the next ignition and the re-con-
figurable multifunction display will inform
user about this condition by displaying a ded-
icated message.
fig. 136
A0A0140m
ASR SYSTEM
(Antislip Regulation)
The ASR function controls the vehicle dri-
ve and cuts in automatically every time one
or both driving wheels slip.
In slipping conditions, two different control
systems are activated:
1) if slipping involves both driving wheels,
being caused by excessive power transmit-
ted, the ASR device cuts in reducing the pow-
er transmitted by the engine.
2) if slipping involves only one driving
wheel, the ASR system cuts in automatical-
ly braking the wheel that is slipping, with
an effect similar to that of a self-locking dif-
ferential.
The action of the ASR is particularly help-
ful in the following circumstances:
– slipping of the inner wheel on a bend,
due to the effect of dynamic load changes
or excessive 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).The performance of the
system in terms of active
safety should not induce the driver
to take pointless and unnecessary
risks. The style of driving must in
any case be adapted to the condi-
tions of the road surface, visibili-
ty and traffic. Road safety is al-
ways the driver’s responsibility.
WARNING

GETTING TO KNOW YOUR CAR
139
IMPORTANTWhen travelling on snow
with snow chains, it may be helpful to turn
the ASR device off: in fact, in these condi-
tions, slipping of the driving wheels when
moving off makes it possible to obtain bet-
ter drive.
ASR system failure warning
Should a defect arise, the ASR system is
automatically disconnected and the re-con-
figurable multifunction display informs user
about this condition by displaying a dedi-
cated message.
In the event of an ASR system operating
failure, the car behaves in the same way
as a car that is not fitted with this system:
in any case, it is advisable to contact Alfa
Romeo Authorised Services as soon as pos-
sible.
EOBD SYSTEM
The EOBD system (European On Board Di-
agnosis) installed on the car meets Directive
98/69/CE (EURO 3).
This system allows continuous diagnosis
of the components on the car correlated with
emissions; it also alerts the driver, by turn-
ing on the warning light
U(on some ver-
sions together with the message + symbol
on the reconfigurable multifunction display)
on the instrument panel when these com-
ponents are no longer in peak conditions.
The objective is:
– to keep system efficiency under control;
– warn when a fault causes emission lev-
els to increase over the threshold established
by European law;
– warn of the need to replace deteriorat-
ed components.
The system also has a diagnostic connec-
tor that can be interfaced with appropriate
tools, which makes it possible to read the
error codes stored in the control unit, to-
gether with a series of specific parameters
for engine operation and diagnosis.If, turning the ignition key
to MAR, the warning light
Udoes not turn on or if,
while travelling it turns on glow-
ing steadily or flashing together
with the message + symbol on the
reconfigurable multifunction dis-
play, contact Alfa Romeo Autho-
rised Services as soon as possible.
IMPORTANTAfter eliminating the in-
convenience, to check the system com-
pletely, Alfa Romeo Authorised Services are
obliged to run a bench test and, if necessary
road tests which may also call for a long jour-
ney.For correct operation of the
ASR system the tyres must
absolutely be of the same brand
and type on all wheels, in perfect
conditions and, above all, of the
specified type, brand and size.
WARNING

GETTING TO KNOW YOUR CAR
140
RADIO PRESETTING
SYSTEM
(for versions/markets where
applicable)
The car, if not delivered with sound sys-
tem, is fitted with a glove compartment on
the instrument panel (fig. 136a).
Sound system presetting system includes
the following:
– sound system power cables;
– front and rear speaker power cables;
– aerial power cable;
– sound system housing;
– aerial on car roof.The sound system shall be installed in the
proper housing occupied by the glove com-
partment that can be removed by pressing
the two retaining tabs fitted in the glove
compartment: here are the power cables.
If after buying the car you
want to install the sound
system, contact first Alfa
Romeo Authorised Services whose
qualified personnel, in addition to
suggesting the most suitable de-
vices, will evaluate the overall
electric absorption to safeguard the
battery. Excessive loadless ab-
sorption could damage the battery
and lose warranty.
The wiring diagram is the following (fig.
136b):Connector A
A1 N.C.
A2 N.C.
A3 N.C.
A4 + 30 (battery-powered)
A5 Aerial power supply
A6 Light
A7 + 15 (key-powered)
A8 Ground
Connector B
B1 RH rear speaker
B2 RH rear speaker
B3 RH front speaker
B4 RH front speaker
B5 LH front speaker
B6 LH front speaker
B7 LH rear speaker
B8 LH rear speaker
fig. 136a
A0A0715m
fig. 136b
A0A0709m

GETTING TO KNOW YOUR CAR
141
ADVICE
Road safety
You are advised to learn how to use the
various radio functions (e.g. storing stations)
before starting to drive.
Reception conditions
Reception conditions change constantly
when driving. Reception may be disturbed
by the presence of mountains, buildings or
bridges particularly when far away from the
station being listened to.
IMPORTANTWhen receiving traffic in-
formation, the volume may be higher than
normal.Care and maintenance
The radio structure ensures long operation
with no need for particular maintenance.
In the event of a fault, contact Authorised
Alfa Romeo Services.
To clean the front panel only use a soft,
antistatic cloth. Cleaning and polishing prod-
ucts might spoil the surface.
Compact Disc
Remember that dirt, marks or distortion on
Compact Discs can cause skipping and poor
sound quality. For top performance condi-
tions, we give the following advice:
– Only use Compact Discs which have the
following brand:
– Carefully clean all Compact Disc of fin-
gerprints and dust using a soft cloth. Sup-
port Compact Discs from the outer circum-
ference and clean from the centre outwards.
INTRODUCTION
The fixed radio, fitted with Compact Disc
player and parametric sound equaliser has
been designed in accordance with the spe-
cific features of the passenger compartment,
with a personalised design that blends with
the style of the dashboard.
The radio is installed in a user-friendly po-
sition for the driver and passenger and the
graphics on the front panel make location
of the controls quick, facilitating use.
The CD-Changer for 10 discs, if present,
is housed in the right-hand side of the boot.
To increase safety against theft, the set is fit-
ted with a protection system that allows the
use of it only on the car on which it was orig-
inally fitted.
Below you will find the instructions for use,
which you are advised to read through care-
fully. The instructions also contain the pro-
cedure for controlling the CD-Changer
through the radio. For the instructions for
use of the CD-Changer refer to the specific
manual.
RADIO WITH COMPACT DISC PLAYER
Too high a volume when
driving can put the driver’s
life at risk and that of other peo-
ple. Therefore the volume should
always be adjusted in such a way
that it is always possible to hear
the noises of the surrounding en-
vironment (e.g. horns, ambulance,
police sirens, etc.).
WARNING

GETTING TO KNOW YOUR CAR
142
– Never use chemical products for clean-
ing (e.g. spray cans, antistatics or thinners)
as they might damage the surface of Com-
pact Discs.– After use, put Compact Discs
back in their container, to avoid marks or
scratches that may cause skipping when
playing.
– Do not expose Compact Discs to direct
sunlight, high temperatures or damp for pro-
longed lengths of time to prevent them from
bending.
– Do not stick labels or write on the record-
ed surface of Compact Discs with pens or
pencils.
To remove a Compact Disc from its con-
tainer, press the centre and raise the disc
carefully, holding it by the outer circumfer-
ence.
Always hold Compact Discs by the outer
circumference. Never touch the surface.To remove fingerprints and dust, use a soft
cloth starting from the centre of the Com-
pact Disc outwards.IMPORTANTIf the CD is copy-protect-
ed, the system may need few seconds be-
fore starting to play it.
Notes on Compact Discs
Do not stick labels on the surface of the
Compact Disc or write on the surface with
pens or pencils.
Proper way to hold
the compact discRemoving the disc
No
Ball-point pen
Roughness
New discs may be rough around the edges.
When these discs are used, the player might
not work or the sound might skip. To remove
the roughness from the edge of the disc use
a ball-point pen etc.
IMPORTANTDo not use the protective
sheets for CD in commerce or discs with sta-
bilisers, etc. as they might get stuck in the
internal mechanism and damage the disc.
No
No
Do not use solvents like stain removers,
antistatic sprays or thinners in commerce for
cleaning Compact Discs.