2005 Alfa Romeo GT engine

GETTING TO KNOW YOUR CAR
108
AUTOMATIC TWO-ZONE CLIMATE CONTROL SYSTEM
(for versions/markets where applicable)
To start the system (fig. 99):
- turn the knob rings to set the required
temperatures (driver’s side - passenger’s
side).
- press the
AUTObutton.
IMPORTANTThe climate control sys-
tem makes it possible to personalise the
temperatures required on the two side with
a maximum difference of 7°C between the
driver’s side and the passenger’s side.
IMPORTANTThe climate control com-
pressor only works with the engine running
and an outside temperature above 4°C.
With an outside tempera-
ture below 4°C the climate
control compressor is un-
able to work. It is therefore unad-
visable to use the inside air re-cir-
culation feature
vwith a low
temperature as the windows might
mist over quickly.
For further details about the system and
how to make the best use of it, read the
instructions given in pages that follow.
A0A0203b
fig. 99
The coolant used for the
climate control system is
R134a which meets cur-
rent regulations and does not harm
the environment in the event of ac-
cidental spillage.
Absolutely avoid the use of oth-
er fluids which are incompatible
with the system components.
GENERAL
The car is fitted with a two-zone climate
control system, controlled by an electronic
control unit which makes it possible to sep-
arately adjust the air temperature on the dri-
ver’s side and on the passenger’s side. To
obtain optimum temperature control in the
two areas of the passenger compartment,
the system has an outside sensor, a pas-
senger compartment sensor and a two-zone
sun ray sensor.

GETTING TO KNOW YOUR CAR
109
- temperature of the air admitted to the
passenger compartment (for the driver’s and
passenger’s side separately)
- fan speed
- air distribution
- inside air re-circulation on/off
- climate control compressor on/off en-
able.
It is possible to change the setting of the
following functions manually:
- fan speed
- air distribution
- inside air re-circulation on/off
- climate control compressor on/off en-
able.
The control of functions not changed man-
ually remains automatic and in any case the
temperature of the air admitted to the pas-
senger compartment is controlled automati-
cally according to the temperatures set on
the driver’s and passenger’s displays.
IMPORTANTManual selections prevail
over automatic ones and remain in storage
until the user decides to resume automatic
control. The settings selected manually are
stored when the engine is switched off and
resumed the next time it is started. To ensure correct opera-
tion of the incipient mist-
ing sensor, stickers must
not be applied (road licence holder,
time card etc.). Care should also be
given to cleaning the windscreen
and the actual sensor, avoiding the
accumulation of dust and other sub-
stances.IMPORTANTThe demisting procedure
is enabled each time the ignition key is
turned to MARor pressing the
AUTObut-
ton. When this procedure is working it can
be turned off pressing one of the following
buttons: compressor, air recirculation, air
flow, air capacity. This operation inhibits the
incipient misting sensor signal until the
AUTObutton is pressed again or the next
time the ignition key is turned toMAR.
On certain versions, the system is inte-
grated by an antipollution sensor capable of
automatically switching on inside air re-cir-
culation to lessen the harmful effects of pol-
luted air in cities, queues, tunnels and op-
eration of the windscreen washer (with the
typical smell of spirit).
IMPORTANTThe function of the an-
tipollution sensor is subordinate to safety
conditions; therefore disabling the climate
control compressor or at an outside tem-
perature below 4°C the sensor is disabled.
The sensor can be re-enabled pressing the
re-circulation button
vuntil taking it to
the automatic mode.
Air quality control is also entrusted to a
combined particle and activated carbon fil-
ter. The climate control system automatically
controls and adjusts the following parame-
ters and functions: On some versions the system is integrat-
ed with an incipient misting sensor installed
behind the inside rear-view mirror, capable
of “controlling” a predefined area of the
windscreen inner surface which can auto-
matically act on the system to prevent or re-
duce misting through a series of operations
such as: opening air re-circulation, enabling
the compressor, air flow to the windscreen,
fan speed sufficient for demisting; in the
case of heavy misting, enabling the
MAX-
DEFfunction.

GETTING TO KNOW YOUR CAR
113
HI function
(highest heating power - fig. 102)
This is turned on setting on the display a
temperature above 32,5°C, and can be ac-
tivated independently from the driver’s or
passenger’s side or both; this setting brings
the system to the “monozone” mode and
is shown on both displays.
This function can be engaged when re-
quiring to heat the passenger compartment
as quickly as possible, exploiting the maxi-
mum potential of the system.
This function uses the maximum temper-
ature of the coolant fluid, while air distribu-
tion and fan speed are controlled according
to the system settings.
This function is unadvisable with
the engine cold to prevent admit-
ting air that is not warm enough to
the passenger compartment.
All manual settings are possible with this
function on.
To switch the system off, simply turn the
ring of knob (2) or (6) of the temperature
set to a value below 32,5°C; the opposite
display will show 32,5°C.
A0A0218b
fig. 102
Pressing key (13)
AUTOthe display will
show a temperature of 32,5°C and returns
to an operating condition with automatic tem-
perature adjustment.

GETTING TO KNOW YOUR CAR
118
press button (13)AUTO; in which case,
however, the other manual settings set will
be cancelled.
CLIMATE CONTROL
COMPRESSORON/OFF ENABLE
BUTTON
(fig. 108)
Pressing button (14)
√enables the turn-
ing on of the climate control compressor.
This condition is shown by the lighting up of
the led on the button itself.
When the climate control compressor is
turned off, the leds on buttons (13)
AUTO
and (14)√go off; automatic inside air re-
circulation control is also excluded (both leds
off on button 8
v) which always stays
off to prevent misting the windows; even
if unadvisable, it is still possible to restore
automatic operation of inside air re-circula-
tion pressing button (8)
v.
With the climate control compressor off, it
is not possible to admit air to the passenger
compartment with a temperature
below the outside temperature; in this case,
the value flashes on the display concerning
the temperature that cannot be reached and
the left led on button (13
AUTO- fig.
109) goes off.
The switching off of the climate control
compressor remains in storage even when
the engine has been stopped. To restore au-
tomatic control for switching on the climate
control compressor, press button (14)
√again, the led on the button turns on, or
Operation of the climate
control compressor is neces-
sary for cooling and dehu-
midifying the air; it is advisable to
keep this function always on, to pre-
vent window misting problems.
A0A0210b
A0A0211bfig. 108
fig. 109

GETTING TO KNOW YOUR CAR
121
QUICK FRONT WINDOW
DEMISTING/DEFROSTING
BUTTON
(MAX-DEF FUNCTION)
(fig. 112)
Pressing button (7)
-the climate con-
trol automatically activates timed operation
of all the functions needed to quicken
demisting/defrosting of the windscreen and
front side windows, i.e.:
- it turns on the climate control compres-
sor;
- switches off inside air re-circulation, if on
(both leds off);
- sets the maximum air temperature (HI)
on both displays (1) and (5);
- operates the fan at a predefined speed;
- directs the flow of air towards the wind-
screen and front side window vents;
- turns on rearscreen heating and, if pre-
sent, the wing mirror coils.
When the maximum demisting/defrost-
ing feature is on, the led on button (7)
-, the led on the rearscreen heating button
(9)
(and the led on button (14)√turn on; at the same time the leds on but-
ton (8)
v.IMPORTANTIf the engine is not hot
enough, the function does not immediate-
ly engage the pre-established fan speed, to
restrict the inlet of air to the passenger com-
partment that is not warm enough to demist
the windows.
When the maximum demisting/defrost-
ing function is on, the only manual opera-
tion possible are manual adjustment of the
fan and switching rearscreen heating off.Pressing one of the following buttons
again: (7)
-, (8)v, (12)MONO,
(13)
AUTOor (14)√the system switch-
es off the maximum demisting/defrosting
function, restoring the operating conditions
of the system prior to turning it on, in ad-
dition to activating the last function required,
if any.
A0A0213b
fig. 112

GETTING TO KNOW YOUR CAR
122
WING MIRROR AND
REARSCREEN
DEFROSTING/DEMISTING
BUTTON
(fig. 113)
Pressing button (9)
(turns on demist-
ing/defrosting of the rearscreen and, if pre-
sent, the wing mirror coils.
The turning on of this function is shown by
the turning on of the led on the button.
This function is timed and switches off au-
tomatically after 20 minutes, or pressing the
button again; the function is also switched
off when the engine is stopped and will not
be switched on again the next time the en-
gine is started.
IMPORTANTThe system automatically
turns on rearscreen heating if the tempera-
ture is below 3
°C.
IMPORTANTDo not apply stickers on
the inside of the rearscreen over the heat-
ing filaments to avoid damage that might
cause it to stop working properly.
POLLEN FILTER
Have the conditions of the filter checked
by Alfa Romeo Authorised Services at least
once a year, preferably at the onset of sum-
mer.
If the vehicle is used mainly in dusty or pol-
luted areas it should be checked and, if nec-
essary, replaced at shorter intervals.
A0A0214b
The filter has the specific capability of com-
bining the mechanical filtering of the air with
an electrostatic effect so that the outside air
admitted to the passenger compartment is
purified and free of particles such as dust,
pollen, etc.
In addition to the above mentioned func-
tion, it also reduces the concentration of pol-
lutants.
The filtering action takes place under all
air inlet conditions and it is clearly most ef-
fective with the windows shut.The failure to replace the
filter may considerably re-
duce the effectiveness of
the climate control system up to
blocking the air flow from the out-
lets and vents.
fig. 113

GETTING TO KNOW YOUR CAR
124
CONTROLS
TAILGATE OPENING (fig. 114)
Electric tailgate release is only allowed with
the ignition key in the ignition switch at
MARvehicle stationary, at STOPor
PARK for 3 minutes without opening/clos-
ing a door. To release the tailgate, press but-
ton (A) on the centre console panel.
Use the hazard warning
lights in compliance with
local regulations.
FOG LIGHTS (fig. 114)
These are turned on pressing button (B),
on the centre console panel, when the out-
er lights are already on, at the same time
the led on the button itself turns on.
Turning the ignition key to STOPthe fog
lights are turned off automatically and do
not come on the next time the engine is
started without pressing button (B).
Press button (B) again to switch off.
IMPORTANTThe front foglights should
be used in compliance with local traffic laws.
fig. 114
A0A0091b
HAZARD WARNING LIGHTS
(fig. 114)
These are switched on by pressing button
(C), on the centre console panel, regardless
of the position of the ignition key.
When the hazard warning lights are
switched on, the switch itself begins to flash
together with the direction indicators and
the direction indicator warning lights on the
instrument cluster. This function is switched
off by pressing the button again.

GETTING TO KNOW YOUR CAR
125
If no leaks are found the vehicle can be
restarted. Press button (A) to activate the
fuel supply system again.
fig. 115
A0A0092b
If a smell of fuel is noted
following an accident, or
the fuel system is leaking,
to avoid the risk of fire do not re-
set the switch.REAR FOG GUARDS (fig. 114)
These are turned on, with the dipped beam
headlights or fog lights on, pressing button
(D) on the centre console panel, at the
same time the warning light on the button
itself turns on.
Turning the ignition key to STOPthe fog
guards are automatically turned off and they
do not come on the next time the engine
is started unless button (D) is pressed. To
turn them off press button (D).
IMPORTANTAlways use the rear fog
guards in compliance with local regulations.
DOOR LOCKING SYSTEM
(fig. 114)
To lock the doors simultaneously, press but-
ton (E), on the centre console panel, re-
gardless of the position of the ignition key.
The deterrent led turns on as follows:
– with the ignition key at MARglowing
steadily with a yellow light;
– with the ignition key at STOPflash-
ing with a red light (deterrence condition).
INERTIAL FUEL CUT-OFF
SWITCH
(fig. 115)
This is an automatic safety switch, to be
found on the floor next to the driver’s door
pillar, which is triggered in the event of a
crash of a certain magnitude to interrupt the
flow of fuel.
The cutting in of the inertial switch is shown
on the display of the instrument cluster.