Alfa Romeo GT 2005 Owner handbook (in English)

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
110
CONTROLS(fig. 100)
1- Inside temperature set display (driver’s
side)
2- Inside temperature adjustment knob
(driver’s side)
3- Fan speed set and system off display
(
OFF)
4- Knob for adjusting the fan speed and
switching the system off
5- Inside temperature set display (pas-
senger’s side)
6- Inside temperature adjustment knob
(passenger’s side)
7- Maximum defrosting/demisting
on/off button for windscreen and front side
windows, rearscreen heating and wing mir-
ror coils (
MAX-DEF FUNCTION)
8- Inside air re-circulation on/off button
v(manual/automatic)
9- Rearscreen heating and wing mirror de-
frosting on/off button
(
10- Air distribution selection buttons11- Inside air temperature sensor
12- Button for aligning the temperature
set on the passenger’s side with that on the
driver’s side
MONO
13- Button for selecting the system au-
tomatic mode
AUTO
14- Climate control compressor on/off
enable button
√
fig. 100
A0A0090b

GETTING TO KNOW YOUR CAR
111
HOW TO USE THE AUTOMATIC
TWO-ZONE CLIMATE CONTROL
SYSTEM
(fig. 100)
IMPORTANTThe knob rings do not
have a mechanical stopper therefore, once
the maximum or minimum value has been
reached, they are free to turn in both direc-
tions.
The system can be started in different
ways, but it is advisable to set the temper-
atures required on the displays; then press
the (13)
AUTObutton.
This way the system will start working
completely automatically to reach the tem-
peratures set as quickly as possible and then
maintain them.
During completely automatic system op-
eration, the temperatures set can be
changed at any time; the system will auto-
matically change its settings to adjust to the
new requirements.IMPORTANTTo be able to be accept-
ed by the system, the difference in the tem-
perature between the driver’s and passen-
ger’s side must be within a range of 7°C.
It is possible to personalise the choices
made automatically by the system inter-
vening manually on the following controls:
- fan speed adjustment knob (4)
- air distribution selection buttons (10)
- inside air re-circulation on/off button (8)v
- climate control on enable button (14)
√.
Manually selecting one or more of these
functions turns off the right led on the but-
ton (13)
AUTO.With one or more functions engaged man-
ually, the adjustment of the temperature of
the air admitted to the passenger compart-
ment continues to be controlled automati-
cally by the system (left led on button 13
AUTOon) except with the climate control
compressor off.
In fact, in this condition the air admitted
to the passenger compartment cannot have
a lower temperature than the outside air;
this condition is indicated by the turning off
of the two leds on button (13)
AUTOand
flashing on the display (1) and/or (5) re-
lated with the temperature rate that can-
not be obtained.

GETTING TO KNOW YOUR CAR
112
AIR TEMPERATURE ADJUST-
MENT KNOBS
(fig. 101)
Turning the rings of knobs (2or6), clock-
wise or counter-clockwise, respectively high-
ers or lowers the temperature of the air re-
quired respectively in the left zone (knob 2)
or right zone (knob 6) of the passenger
compartment. The temperatures set are
shown on the displays (1) and (5) above
the knobs.
Separate operation of the temperatures set
is restored automatically using knob (6).
Turning the knob rings clockwise or
counter-clockwise until they reach the ex-
treme selections HIorLO, the maximum
heating or cooling functions are respective-
ly engaged:
A0A0204b
fig. 101

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
114
LO function
(highest cooling power - fig. 103)
This is turned on setting on the display a
temperature below 16,5°C; this setting is
shown on both displays.
This function can be engaged when re-
quiring to cool the passenger compartment
as quickly as possible, exploiting the maxi-
mum potential of the system.
The function cuts off air heating, engages
inside air re-circulation (to prevent admitting
hot air to the passenger compartment) and
the climate control compressor, takes air dis-
tribution to
REand the fan speed as set
by the system.
All manual settings are possible with this
function on.
To switch the function off, simply turn the
ring of knob (2) or (6) of the temperature
set on a value above 16,5°C; the opposite
display will show 16,5°C.
Pressing key (13)
AUTOthe display will
show a temperature of 16,5°C and returns
to an operating condition with automatic
temperature adjustment.
A0A0219b
fig. 103

GETTING TO KNOW YOUR CAR
115
MONO BUTTON FOR ALIGN-
MENT OF THE TEMPERATURE
SET
(fig. 104)
Pressing button (12)
MONOautomatically
aligns the temperature on the passenger’s
side with that on the driver’s side, therefore
it is possible to set the same temperature
between the two zones simply turning the
ring of knob (2) on the driver’s side.
This function is provided to simplify tem-
perature adjustment of the whole passen-
ger compartment when only the driver is on
board.
Separate operation of the temperatures set
is automatically restored when the passen-
ger uses the ring on knob (6) or presses
button (12)
MONO.
A0A0207b
fig. 104

GETTING TO KNOW YOUR CAR
116
FAN SPEED ADJUSTMENT
KNOB
(fig. 105-106)
Turning the ring of knob(4), clockwise or
counter-clockwise, increases or decreases
the speed of the fan, thus the amount of air
admitted to the passenger compartment;
the 16 selectable speeds are shown on a
bar (in steps of 3), up to a maximum of 6
bars lit:
- maximum fan speed = all bars lit;
- minimum fan speed = one bar lit.
The fan can be cut off (all bars off) only
if the climate control compressor has been
switched off pressing button (14)
√. To
restore automatic fan speed control, after a
manual adjustment, press button (13)
AU-
TO. Completely turning the ring of knob (4)
counter-clockwise switches the system off,
with the following situation: display (1) off;
display (5) off; centre display (3) with lit-
display
OFFand left led on inside air re-cir-
culation button (8)
von.
IMPORTANTPressing the inside air re-
circulation button (8)
vit is possible to
obtain the inlet of untreated outside air to
the passenger compartment.
To turn the system on again, simply turn
the ring of knob (4) clockwise, or press any
one button, except the inside air re-circula-
tion (8) and rearscreen (9) buttons; this
operation restores all the operating conditionsstored previously.
IMPORTANTOn leaving the
OFFcondi-
tion, inside air re-circulation
vreturns to
the condition prior to switching off.
A0A0205b
A0A0206bfig. 105
fig. 106

GETTING TO KNOW YOUR CAR
117
AIR DISTRIBUTION SELECTION
BUTTONS
(fig. 107)
Pressing one or more buttons (10) it is
possible to manually choose one of the 5
possible air distributions to the passenger
compartment:
REFlow of air to the dashboard centre
and side outlets and rear outlet.E
R
ZESplitting of the air flow between the
vents to the lower part of the pas-
senger compartment (warmest air)
and the dashboard centre and side
outlets and the rear outlet (coolest
air). The air flow distribution is par-
ticularly useful in spring and autumn,
when the sun is shining.
ZAir flow towards the front and rear
lower parts of the passenger com-
partment. Due to the natural tenden-
cy of heat to spread upwards, this
type of distribution allows heating of
the passenger compartment in the
shortest time, also giving a prompt
feeling of warmth to the coldest parts
of the body.
A0A0208b
Q
ZSplitting of the air flow between the
windscreen and side window defrost-
ing/demisting vents and the lower
part the of the vehicle. This type of air
distribution allows satisfactory heat-
ing of the passenger compartment
while preventing misting of the win-
dows.
QAir flow to the windscreen and front
side window vents to demist or de-
frost them.IMPORTANTPressing one of these but-
tons turns on (led on button itself on)
or off (led on button off) the associ-
ated functions if the combination cho-
sen is among the 5 possible ones; if
not it only activates the main function
of the button pressed, without the
possibility of turning off with anoth-
er press (at least in one distribution
the air flow should be spread in the
passenger compartment).
To restore automatic air distribution
control after a manual selection, press
button (13)
AUTO. fig. 107

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