2007 Alfa Romeo GT Owner handbook (in English)

GETTING TO KNOW YOUR CAR
87
DEMISTING
AND/OR DEFROSTING THE
WINDSCREEN AND FRONT
SIDE WINDOWS, REARSCREEN
AND WING MIRRORS
(MAX-DEF FUNCTION)(fig. 94)
Proceed as follows:
- turn the ring of the air distribution knob
(3) to the
-symbol.
The climate control activates all the func-
tions necessary to quicken demisting/
defrosting of the windscreen and side win-
dows with timing (switching off automati-
cally after 3 minutes), as follows:
- switches off air re-circulation, if engaged;
- sets the maximum air temperature;
- 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 max demisting/defrosting func-
tion is on, the led next to the rearscreen
heating button (5)
-will turn on.
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
compartment that is not warm enough to
demist the windows.
After demisting/defrosting, simply use
the controls to maintain the optimum con-
ditions of vision and comfort.
IMPORTANTThe hotter the engine
the more effective defrosting will be. IMPORTANTIn cases of heavy damp
and/or rain and/or big differences in tem-
perature between inside the car and out-
side, it is advisable to proceed as follows
to demist the windows:
- air re-circulation off, led next to button
(4)
voff;
- pointer of knob (2) at fan second speed
at least;
- pointer of knob (3) on symbol
≤with
the possibility of passing to position
yif
more misting is noted;
To defrost/demist the rearscreen, press
button (5)
(, led next to button on.
A0A0733b
fig. 94

GETTING TO KNOW YOUR CAR
88
HEATING (fig. 95)
To obtain the temperature required, pro-
ceed as follows:
- temperature adjustment knob pointer
(1) on the red sector as required;
- air quantity adjustment knob pointer
(2) on the fan speed required to person-
alise the amount of air admitted;
- air distribution knob pointer (3) on the
required position.
To obtain the maximum heating power
proceed as follows:
- knob pointer (1) as far as it will go clock-
wise (maximum temperature red sector);
- knob pointer (2) on maximum fan
speed;
- air distribution knob pointer (3) on the
required position (position
w) is recom-
mended.
IMPORTANTTo be able to obtain sat-
isfactory passenger compartment warm-
ing, the engine should have reached nor-
mal operating temperature. The filter has the specific capability of fil-
tering external air, thus admitting to the
passenger compartment purified air, free
from particles such as dust, pollen, etc.
In addition to the above mentioned func-
tions, is also reduces the concentration of
pollutants.
The filtering action is active in all air inlet
conditions and it is clearly more effective
with the windows closed.
Have the conditions of the filter checked
at least once a year, preferably at the
onset of summer by Alfa Romeo
Authorised Services. If the car is habitually used in dusty or
polluted areas, the filter should be
checked and replaced at shorter intervals
than those specified in the Programmed
Maintenance Schedule.
If the filter is not replaced
the efficiency of the cli-
mate control system may
be seriously compromised up to
blocking the air flow at the outlets
and vents.
POLLEN FILTER
(for versions/markets where applicable)
A0A0734b
fig. 95

GETTING TO KNOW YOUR CAR
89
AUTOMATIC TWO-ZONE CLIMATE CONTROL SYSTEM
(for versions/markets where applicable)
To start the system (fig. 96):
- 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 passen-
ger’s side.
IMPORTANTThe climate control com-
pressor can only work with the engine run-
ning and external temperature not very
low. With low external tem-
perature the climate con-
trol compressor is unable
to work. It is therefore inadvisable
to use the inside air recirculation
function vwith low outside tem-
perature as windows may 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. 96
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.

GETTING TO KNOW YOUR CAR
90
IMPORTANTThe demisting procedire
is enabled each time the ignition key is
turned to MARor pressing the button
AUTO. When this procedure is working it
can be turned off pressing one of the fol-
lowing buttons : compressor, air recircula-
tion, air distribution, air flow. This opera-
tion inhibits the incipient misting sensor
signal until the button
AUTOis pressed
again or the next time the ignition key is
turned to MAR.On certain versions, the system is inte-
grated by an antipollution sensor capable
of automatically switching on inside air
recirculation to lessen the harmful effects
of polluted air in cities, queues, tunnels
and operation of the windscreen washer
(with the typical smell of spirits).
IMPORTANT The function of the
antipollution sensor is subordinate to safe-
ty conditions; therefore disabling the cli-
mate control compressor or with low exter-
nal temperature, the sensor is disabled. In
any case, the sensor can be re-enabled
pressing the recirculation button
vuntil
taking it to the automatic mode. 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.
GENERAL
The car is fitted with a two-zone climate
control system, controlled by an electronic
control unit which makes it possible to
separately adjust the air temperature on
the driver’s side and on the passenger’s
side. To obtain optimum temperature con-
trol in the two areas of the passenger
compartment, the system has an outside
sensor, a passenger compartment sensor
and a two-zone sun ray sensor.
On some versions the system is integrat-
ed with an incipient misting sensor
installed behind the inside rear-view mir-
ror, capable of “controlling” a predefined
area of the windscreen inner surface
which can automatically act on the system
to prevent or reduce misting through a
series of operations such as: opening air
re-circulation, enabling the compressor, air
flow to the windscreen, fan speed suffi-
cient for demisting; in the case of heavy
misting, enabling the
MAXDEFfunction.

GETTING TO KNOW YOUR CAR
91
The air quality control is also entrusted to
a combined particle and activated carbon
filter. The climate control system automat-
ically controls and adjusts the following
parameters and functions:
- 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. The settings of the following functions
can be modified manually:
- fan speed
- air distribution
- inside air re-circulation on/off
- climate control compressor on/off enable.
The control of the functions that have
not been modified manually will always
be automatic and, in any case, the tem-
perature of the air flowing into the pas-
senger compartment is controlled auto-
matically depending on the temperatures
set on the driver’s and passenger’s dis-
plays.IMPORTANTManual selections pre-
vail 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.

GETTING TO KNOW YOUR CAR
92
CONTROLS(fig. 97)
1- Inside temperature set display (dri-
ver’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 mirror coils (
MAX-DEFfunction)
8- Inside air re-circulation on/off button
v(manual/automatic)
9- Rearscreen heating and wing mirror
defrosting on/off button
(
10- Air distribution selection buttons 11- 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
automatic mode
AUTO
14- Climate control compressor on/off
enable button
√
fig. 97
A0A0090b

GETTING TO KNOW YOUR CAR
93
HOW TO USE
THE AUTOMATIC TWO-ZONE
CLIMATE CONTROL SYSTEM
(fig. 97)
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
directions.
The system can be started in different
ways, but it is advisable to set the tem-
peratures required on the displays; then
press the (13)
AUTObutton.
This way the system will start working
completely automatically to reach the
temperatures set as quickly as possible
and then maintain them.
During completely automatic system
operation, 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 accepted
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-
veningmanually 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
manually, the adjustment of the tempera-
ture of the air admitted to the passenger
compartment continues to be controlled
automatically by the system (left led on
button13
AUTOon) except with the cli-
mate control compressor off.
In fact, in this condition the air admitted
to the passenger compartment cannot
have a lower temperature than the out-
side 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) related with the temperature
rate that cannot be obtained.

GETTING TO KNOW YOUR CAR
94
AIR TEMPERATURE
ADJUSTMENT KNOBS
(fig. 98)
Turning the rings of knobs (2or6),
clockwise or counter-clockwise, respective-
ly highers or lowers the temperature of
the air required respectively in the left
zone (knob 2) or right zone (knob 6) of
the passenger compartment. The temper-
atures 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
extreme selections HIorLO, the maxi-
mum heating or cooling functions are
respectively engaged:
A0A0204b
fig. 98