engine Alfa Romeo GT 2007 Owner handbook (in English)

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 ASR can be switched
off and on again pressing switch (A-fig.
151).
When the function is turned off, the in-
strument panel warning light
Vturns on.
If the function is switched off when trav-
elling, it will turn on again automatically the
next time the engine is started.
fig. 151
A0A1107b
ASR SYSTEM
(Antislip Regulation)
(on request for versions/
markets where applicable)
The ASR function controls the car drive and
cuts in automatically every time one or both
driving wheels slip.
In slipping conditions, tow 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 performance of the
system in terms of active
safety should not induce
the driver to take pointless and un-
necessary risks. The style of dri-
ving must in any case be adapted
to the conditions of the road sur-
face, visibility and traffic. Road
surface is always the driver’s re-
sponsibility.
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 safety.
– acceleration on slippery, snowy or frozen
surfaces.
– in the case of loss of grip on a wet sur-
face (aquaplaning).

GETTING TO KNOW YOUR CAR
139
ASR system
failure indications
In the event of a fault, the ASR system
switches off automatically and the
Vwarn-
ing light on the instrument cluster turns on,
together with the message on the reconfig-
urable multifunction display.
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.MSR SYSTEM (engine braking
torque control)
The car is fitted with a special system, in-
tegral with the ASR system, that in case of
sudden gear shifting, cuts in providing torque
to the engine thus preventing excessive dri-
ving wheel drive that, specially in poor grip
conditions, can lead to loss of stability. During use of the compact
spare wheel, the ASR func-
tion is cut off and the
V
warning light on the instrument
cluster turns on glowing steadily
together with the message on the
reconfigurable multifunction dis-
play.
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 type, brand and size specified.
IMPORTANTWhen travelling on snowy
roads with snow chains, it may be helpful
to turn the ASR off: in fact, in these condi-
tions, slipping of the driving wheels when
moving off makes it possible to obtain bet-
ter drive.

GETTING TO KNOW YOUR CAR
140
EOBD SYSTEM
(upon request for versions/
markets where applicable)
The EOBD system (European On Board Di-
agnosis) allows continuous diagnosis of the
components of the car correlated with emis-
sions.
It also alerts the driver, by turning on the
warning light
Uon the instrument panel
(on certain versions together with message
+ symbol on the reconfigurable multifunc-
tion display), when these components are
no longer in peak conditions.
The objective is:
– to keep the system efficiency under con-
trol;
– to warn when a fault causes emissions
levels to increase;
– to warn of the need to replace deterio-
rated 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. This
check can also be carried out by the traffic
police.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.
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 (on some
versions together with the mes-
sage + symbol on the reconfig-
urable multifunction display), con-
tact Alfa Romeo Authorised Ser-
vices as soon as possible.

GETTING TO KNOW YOUR CAR
165
DIESEL ENGINES
If the outside temperature is very low, the
diesel thickens due to the formation of paraf-
fins and could clog the diesel fuel filter.
In order to avoid these problems, different
types of diesel are distributed according to
the season: summer type, winter type arc-
tic type (mountains/cold areas).
If refuelling with diesel fuel not suitable for
the current temperature, mix diesel fuel with
TUTELA DIESEL ARTadditive in the pro-
portions stated on the can, putting first the
antifreeze in the tank and then the diesel
fuel.
TUTELA DIESEL ARTshall be added to
diesel fuel before the due to cold take place.
Adding it later will be worthless. If driving or
parking the vehicle for a long period in cold
areas/mountains, refuel with the diesel fu-
el available at local filling stations. In this
situation you are also recommended to have
in the tank an amount of fuel 50% higher
than usable capacity.
REFUELLING
PETROL ENGINES
Use only unleaded petrol.
To prevent accidentally filling with leaded
petrol, the diameter of the fuel tank filler
is of such a size as not to accept the noz-
zle of this type of petrol.
The unleaded petrol octane number
(R.O.N.) used shall not be less than 95.
IMPORTANTAn inefficient catalyst
leads to harmful emission at the exhaust,
thus environment pollution.
IMPORTANTUnder no circumstances
should conventional leaded petrol be used,
as this would irreparably damage the cata-
lyst.Cars with diesel engines
must only be filled with
diesel fuel for motor vehi-
cles, in compliance with European
Specification EN590. The use of
other products or mixtures may ir-
reparably damage the engine with
invalidation of the warranty due to
the damage caused. In the event of
accidentally filling with another
type of fuel, do not start the en-
gine and empty the tank. If the en-
gine has been run even for only a
very short time, in addition to the
tank, it is also necessary to drain
out the whole fuel circuit.

GETTING TO KNOW YOUR CAR
166
IMPORTANTThe sealing of the tank
may cause light pressurising in the tank. A
little breathing off, while slackening the cap,
is absolutely normal.
After refuelling, turn the cap clockwise and
close the flap.
IMPORTANTFor your safety, make sure
that the fuelling pump nozzle is inserted cor-
rectly into the housing, before starting the
engine.Should it be not possible to open the fuel
flap electrically, use the special cable in the
boot (A-fig. 156) to open it manually. FUEL CAP
The fuel cap (C-fig. 154) is electrically
controlled. To open it, press button (D-fig.
155); the flap can be opened only when
the engine is off.
The fuel cap (A-fig. 154), accessible af-
ter opening the lid (C), is fitted with a catch
to prevent losing it (B) which fastens it to
the lid.
When refuelling, hook the cap to the de-
vice on the inner flap, as illustrated.
Do not put naked flames
or lighted cigarettes near
the fuel filler hole as there
is a danger of fire. Do not bend too
close to the hole either so as not to
breathe in harmful vapours.
If required, replace the fu-
el cap only with a genuine
new one to prevent im-
pairing the petrol vapour system.
fig. 154
A0A0644b
fig. 155
A0A1108b
fig. 156
A0A0652b

GETTING TO KNOW YOUR CAR
167
The devices used to reduce diesel fuel en-
gine emissions are:
– oxidising catalyst;
– exhaust gas recirculation system (E. G. R.);
– diesel particulate filter (DPF). DPF (Diesel Particulate Filter)
(for versions/ markets where
applicable)
The Diesel Particulate Filter is a mechani-
cal filter, integral with the exhaust system,
that physically traps particulates present in
the exhaust gases of Diesel engines.
The diesel particular filter has been adopt-
ed to eliminate almost totally particulates in
compliance with current / future law regu-
lations.
During normal use of the car, the engine
control unit records a set of data (e.g.: trav-
el time, type of route, temperatures, etc.)
and it will then calculate how much partic-
ulates has been trapped by the filter.
Since this filter physically traps particulates,
it shall be cleaned (reclaimed) at regular in-
tervals by burning carbon particles.
ENVIRONMENTAL
PROTECTION
The devices used to reduce petrol engine
emissions are:
– trivalent catalytic converter (catalytic si-
lencer);
– Lambda sensors;
– anti-evaporation system.
If one or more spark plugs are discon-
nected, do not run the engine, even for a
test.During normal service the
catalyst and the diesel par-
ticulate filter (DPF) reach
high temperatures. Do not there-
fore park the car over inflammable
materials (grass, dry leaves, pine
needles, etc.): fire hazard.

GETTING TO KNOW YOUR CAR
168
Diesel Particulate Filter clogged
When the diesel particulate filter is
clogged, the display shows symbol
h
+ message. In this event keep the engine
running until symbol
hand message
turn off. Reclaiming procedure is controlled auto-
matically by the engine control unit accord-
ing to the filter conditions and the conditions
of use of the car. During reclaiming the fol-
lowing phenomena could take place: idling
slight increase, fan activation, slight smoke
increase, high exhaust temperatures.
These situations shall not be considered as
faults and they do not affect car perfor-
mance and environment.

CORRECT USE OF THE CAR
169
STARTING PROCEDURE
FOR PETROL VERSIONS
IMPORTANTIt is important never to
press the accelerator before the engine has
started.
1) Make sure the handbrake is engaged.
2) Move the gear lever to neutral.
3) Fully depress the clutch pedal, so that
the starter motor is not forced to crank the
gears.
4) Ensure that the electric systems and de-
vices, especially if they absorb high quanti-
ties of energy (e.g. heated rearscreen), are
switched off.
5) Turn the ignition key to the AV Vpo-
sition and release it as soon as the engine
starts.
6) If the engine does not start, return the
key to STOP, then repeat the procedure.
IMPORTANTIf it is difficult to start the
engine do not insist with extended attempts
which may damage the catalyst, but con-
tact Alfa Romeo Authorised Services. The ignition switch is fitted with a safety
device which obliges the driver to return the
key to the STOPposition before repeat-
ing the starting operation if the engine does
not start immediately.
Similarly, when the engine is running, the
device prevents the key being moved from
theMARto the AV Vposition.
STARTING
THE ENGINE
IMPORTANTThe car is fitted with an
electronic engine lock device. If the engine
fails to start, see the “Alfa Romeo CODE sys-
tem”.
C C
O O
R R
R R
E E
C C
T T
U U
S S
E E
O O
F F
T T
H H
E E
C C
A A
R R
We recommend that dur-
ing the initial period you do
not drive to full car perfor-
mance (for example excessive ac-
celeration, long journeys at top
speed, hard braking etc.).
Running the engine in con-
fined areas is extremely
dangerous. The engine con-
sumes oxygen and produces carbon
monoxide which is a highly toxic
and lethal gas.
When the engine is
switched off never leave
the ignition key in the MAR
position to prevent pointless cur-
rent absorption from draining the
battery.

CORRECT USE OF THE CAR
170
STARTING PROCEDURE
FOR JTD VERSIONS
1) Make sure the handbrake is engaged.
2) Set the gearshift lever to neutral.
3) Turn the ignition key to MAR. The re-
configurable multifunction display will show
the
mwarning light.
4) Wait for the
mto turn off, which
takes place sooner, the warmer the engine.
With the engine very warm the light might
stay on for such a short time as to pass un-
noticed.
5) Fully depress the clutch pedal.
6) Turn the ignition key to AV Vas soon
as the
mwarning light has gone out.
Waiting too long, makes the warming work
of the glow plugs useless.IMPORTANTThe electric devices that
absorb a high amount of energy (climate
control, rearscreen heating, etc.) are cut off
automatically during starting.
If the engine does not start at the first at-
tempt, move the ignition key to STOPbe-
fore repeating starting.
If starting is difficult (with the Alfa Romeo
CODE system working properly), do not in-
sist with prolonged attempts.
Only use an auxiliary battery if the cause
is due to low battery charge. Never use a
battery charger to start the engine.
WARMING THE ENGINE
– Drive off slowly, at medium revs with-
out accelerating abruptly.
– Do not drive at full performance for the
initial kilometres of the journey. Wait until
the engine coolant temperature reaches 50-
60 °C.

CORRECT USE OF THE CAR
171
Never push, tow or coast
start the car. This could
cause fuel to flow into the
catalyst damaging it irreversibly.
Remember that the en-
gine brake and power
steering are not opera-
tional until the engine is started,
therefore, much greater effort than
usual is needed on the brake ped-
al and steering wheel. For cars with turbocharg-
er in particular, but for all
cars in general, sharp ac-
celerating should be avoided before
switching the engine off.
A “kick” on the accelerator
serves no purpose, consumes fuel
pointlessly and may cause serious
damage to the turbocharger im-
peller 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 car on the move, the next time it is start-
ed, the Alfa Romeo CODE warning light may
turn on(
Y). In this case, check that switch-
ing off and starting the engine again with
the car stationary, the warning light stays
off. If not, contact 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 STOPpo-
sition 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 compartment.