2005 Alfa Romeo GT steering

GETTING TO KNOW YOUR CAR
153
ed by a highly sensitive lateral acceleration
sensor.
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 each wheel. These signals
allow 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 is
able to know the position of the car instant
by instant and compares it with the course
the driver 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 VDC system considerably en-
hances 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.For the VDC system to
work correctly, the tyres
must be of the same brand
and type on all wheels, in perfect
conditions and above all of the
specified type, brand and size.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 an 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.During use of the compact
spare wheel, the VDC sys-
tem continues working. It
should be borne in mind that the
spare wheel is smaller than a nor-
mal tyre, therefore its grip is low-
er than that of the other tyres of
the car.

GETTING TO KNOW YOUR CAR
164
11. 5-MIXFunction select button:
– Call station no. 5
– Store station no. 5
– Random CD track playing
12. 4-RPTFunction select button:
– Call station no. 4
– Store station no. 4
– Continuous CD track playing
13. BN-ASRadio frequency range select
function (FM1, FM2, FMT,
MW, LW) - Autostore
14. SRC-SCOperating mode select button
Radio - Compact Disc - CD-
Changer and Scan function
(hearing stations in se-
quence)
15. 3-IIFunction select button:
– Call station no. 3
– Store station no. 3
– CD playing pause
16. 2-CLRFunction select button:
– Call station no. 2
– Store station no. 2
– CLR function (CD track stor-
age clearing)17. 1-TPMFunction select button:
– Call station no. 1
– Store station no. 1
– TPM function (storing CD
playing sequence)
18. AUD-LDSound function select button:
bass tones, treble tones,
right/left and front/rear bal-
ancing and Loudness (ex-
cluding versions with HI-FI
BOSE sound system)
19. VOL-Volume lowering button
20. ON-
zFunction select button:
– Set on/off
– Mute on/off
21. VOL+Volume highering button
CONTROLS ON THE STEERING
WHEEL
(fig. 155)
The main radio function controls are re-
peated on the steering wheel, to allow eas-
ier control.
1.Volume increase button
2.Volume decrease button
3.Mute button
4.Radio frequency range select button
(FM1, FM2, FMT, MW, LW) and avail-
able sources (Radio - Compact Disc - CD-
Changer)
5.Multifunction button:
– Radio: call preset stations (from 1 to
6)
– Compact Disc player: select next piece
fig. 155
A0A0640b

Never push, tow or
coast start the vehicle.
This could cause fuel to
flow into the catalyst damaging
it irreversibly.
Remember that the
engine brake and power
steering are not opera-
tional until the engine is started,
therefore, much greater effort
than usual is needed on the brake
pedal and steering wheel.CORRECT USE OF THE CAR
202
For cars with tur-
bocharger in particular,
but for all cars in general,
sharp accelerating should be
avoided before switching the
engine off.
A “kick” on the accelerator
serves no purpose, consumes fuel
pointlessly and may cause seri-
ous damage to the turbocharger
impeller bearings.EMERGENCY STARTING
If the Alfa Romeo CODE system does not
recognise the code transmitted by the igni-
tion key (warning light
Yon the instru-
ment cluster glowing on steadily) emer-
gency starting may be carried out using
the code of the CODE card.
For the correct procedure see the chapter
“In an emergency”.
IMPORTANTIf the engine turns off
with the vehicle on the move, the next
time it is started, the Alfa Romeo CODE
warning light may turn on(
Y). In this
case, check that switching off and starting
the engine again with the vehicle station-
ary, the warning light stays off. If not, con-
tact Alfa Romeo Authorised Services.
ENGINE SWITCHING OFF
– Release the accelerator pedal and wait
until the engine reaches idle speed.
– Turn the ignition key to the STOP
position and switch off the engine.
IMPORTANTAfter a tiring journey it is
advisable to let the engine “get its breath
back” allowing it to idle a while to lower
the temperature in the engine compart-
ment.

CORRECT USE OF THE CAR
209
Keep your speed
down when snow
chains are fitted.
Do not exceed 50 km/h. Avoid
potholes, steps and pavements to
prevent damaging the tyres, sus-
pension and steering. Remember
that with snow chains fitted the
brake distance will increase.
VEHICLE INACTIVITY
If the vehicle is to be left inactive for
long periods, the following precautions
should be noted:
– House the vehicle under cover in a dry
and possibly ventilated place.
– Engage a gear.
– Check that the handbrake is not
engaged.
– Clean and protect the paintwork by
protective wax.
– Cover the rubber windscreen and
rearscreen wiper blades with talcum pow-
der and raise them off the glass.
– Open the windows slightly.
– Inflate the tyres to a pressure of 0.5
bars above normal. If possible rest the
tyres on wooden planks and periodically
check the pressure.
– Do not turn on the electronic alarm
system.– Disconnect the battery negative termi-
nal (–) from the battery and check the
battery charge. This check should be
repeated once a month during stowage.
Charge the battery if the loadless voltage
is below 12,5V.
– Do not empty the engine cooling sys-
tem.
– Cover the vehicle with a fabric or per-
forated plastic cover. Do not use compact
plastic covers which prevent the humidity
on the surface of the vehicle from evapo-
rating. Snow chains cannot be
fitted to the compact
spare wheel. So, if a front
(drive) wheel is punctured and
chains are needed, a rear wheel
should be fitted to the front of
the vehicle (inflate the tyres to
the specified pressure as soon as
possible) and the spare wheel
should be fitted to the rear. This
way, with two normal drive
wheels, snow chains can be fitted
to them to solve an emergency.
With snow chains fitted
it is advisable to turn off
the ASR system. Press
the ASR-OFF button, led on but-
ton on.

IN AN EMERGENCY
212
STARTING BY INERTIA
If the car is equipped with “Kit for tyre
repair Fix&Go“, see the instructions con-
tained in the following chapter.
GENERAL INSTRUCTIONS
As an alternative to FIX & GO, the com-
pact spare wheel or a wheel with the nor-
mal size can be supplied upon request;
wheel changing and correct use of the
jack and compact spare wheel call for
some precautions as listed below.
IN THE EVENT OF A PUNCTURE
Never push, tow or
coast start the vehicle.
This could cause fuel to
flow into the catalyst damaging
it irreversibly.
Remember that the
engine brake and power
steering are not opera-
tional until the engine is started,
therefore, much greater effort
than usual is needed on the brake
pedal and steering wheel.
Signal the presence of
the stationary vehicle
according to current regu-
lations: hazard warning lights,
reflecting triangle etc..
Any passengers should leave
the car and wait for the wheel to
be changed out of harm of the
traffic.
If parked on a slope or rough
surface, chock the wheels with
wedges or other suitable devices
to prevent the car from rolling.
Never start the engine
with the car jacked.
When driving with a
trailer, disconnect the trailer
before raising the car.
The compact spare wheel is spe-
cific to your car, do not use it on
other models, or use the spare
wheel of other models on your
vehicle.
Should the type of wheels used
be changed (alloy rims instead of
steel), it is also necessary to
change the whole set of fastening
bolts with others of suitable size.
The compact spare wheel is nar-
rower than normal wheels, it
should be used only for the dis-
tance necessary to reach a service
point to have the punctured tyre
repaired and, during its use, the
car speed must not exceed 80
km/h.

IN AN EMERGENCY
241
Volumetric sensors
ESP system sensor
Steering angle sensor
EOBD system diagnosis socket
Cell phone provision
Driver’s door control unit supply
Passenger’s door control unit supply
Control lighting
Climate control system control lighting
Instrument cluster
Instrument cluster
Driver’s door control unit
ABS control unit
ABS control unit
Dashboard control unit
Air - bag control unit
Electronic injection control unit +30
Engine compartment control box (petrol versions)
Dashboard control unit
Trailer control unit15
7.5
7.5
15
15
20
20
7.5
7.5
10
10
15
7.5
50
50
7.5
7.5
125
70
10 F39
F42
F42
F39
F39
F47
F48
F49
F35
F37
F53
F39
F42
F04 (MAXI-FUSE)
F02 (MAXI-FUSE)
F50
F18
F70 (MEGA-FUSE)
F71 (MAXI-FUSE)
F36 52
52
52
52
52
52
52
52
52
52
52
52
52
53
53
52
53
54
54
52
SERVICES FIGURE FUSE AMPERES

IN AN EMERGENCY
244
IF THE VEHICLE IS TO BE TOWED
The tow ring supplied with the vehicle is
housed in the tool box under the boot
mat.
To install the tow ring, proceed as fol-
lows:
– Take the tow ring from the tool box.
– Remove the cover (A) snap-fitted on
the front (fig. 55) or rear (fig. 56)
bumper. To do this, using the flat-bladed
screwdriver provided, protect the tip with
a soft cloth to avoid damaging the car.– Firmly screw the ring in its housing.
fig. 55 - front
A0A0650b
fig. 56 - rear
A0A0670b
Before tightening the
ring carefully clean the
threaded housing. Before
beginning to tow the car, make
sure that the ring is firmly tight-
ened in its threaded housing.
Before starting to tow,
turn the ignition key to
MAR and back to STOP,
again without removing it.
Removing the key automatically
engages the steering lock result-
ing in the impossibility to steer
the wheels. When towing
remember that without the help
of the engine brake and power
steering greater effort is required
on the pedal and steering wheel.
Do not use flexible cables for
towing and avoid jerks. During
towing operations make sure
that fastening the joint to the car
does not damage the components
in contact with it. When towing
the car, it is compulsory to follow
specific traffic regulations con-
cerning both the towing device
and behaviour on the road.

VEHICLE MAINTENANCE
250
ADDITIONAL
OPERATIONS
Every 1000 kmor before long jour-
neys, check and if necessary top up:
– engine coolant fluid level
– brake/hydraulic clutch control fluid
level
– power steering fluid level
– windscreen and headlamp washer
fluid level
– tyre pressure and conditions.
Every 3000 kmcheck and if necessary
top up the engine oil level.
The use of FL Seleniaproducts is rec-
ommended which have been designed
and made expressly for Alfa Romeo cars
(see “Refuelling” in the “Technical
Specifications” chapter).
ANNUAL INSPECTION
PROGRAMME
For cars with an annual mileage
of below 20,000 km (for exam-
ple about 10,000 km) the follow-
ing yearly inspection programme
is advised:
– Check tyre conditions/wear and if
necessary adjust the pressure (including
spare wheel)
– Check operation of lighting system
(headlights, direction indicators, hazard
warning lights, boot, passenger compart-
ment, glovebox lights, warning lights,
etc.)
– Check operation of windscreen wiper
system, spray jet adjustment
– Check position/wear of windscreen
– Check front disk brake pad conditions
and wear– Sight check for conditions of: engine,
gearbox, transmission, pipes (exhaust -
fuel supply - brakes), rubber parts (boots
- sleeves - bushes etc..), brake and fuel
supply system hoses
– Check for bonnet and boot lock clean-
ness, lever cleanness and lubrication
– Check battery charge
– Sight check for conditions of various
drive belts
– Check and if necessary top up fluid
levels (engine coolant, brakes, wind-
screen washer, battery etc. )
– Change engine oil and engine oil filter
– Change pollen filter.