2004 Alfa Romeo 156 climate settings

GETTING TO KNOW YOUR CAR
117
The air quality control is also entrusted
to a combined particle and activated carbon
filter.
The climate control system automatically
controls and adjusts the following parame-
ters 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 recirculation on/off
– climate control compressor on/off en-
able.The settings of the following functions can
be modified manually:
– fan speed
– air distribution
– inside air recirculation on/off
– climate control compressor on/off en-
able
– window defrosting/demisting.
The control of the functions that have not
been modified manually will always be au-
tomatic and, in any case, the temperature
of the air flowing into the passenger com-
partment is controlled automatically de-
pending on the temperatures set on the dri-
ver’s and passenger’s displays.WARNINGManual 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 the engine is started.

GETTING TO KNOW YOUR CAR
119
HOW TO USE THE AUTOMATIC
TWO-ZONE CLIMATE CONTROL(fig. 101)
WARNINGThe knob rings are not pro-
vided with automatic stopper; therefore,
they are free to rotate in both directions once
they have reached the maximum or mini-
mum values.
The system can be started in different
ways, but it is recommended that the re-
quired temperatures are set on the
displays; then, press (14)
AUTO
button.
Thus, the system will start operating fully
automatic, to reach the set temperatures
in the shortest possible time and keep them.
During the fully automatic operation of the
system, the set temperatures can however
be modified at any time: the system will au-
tomatically modify its own settings to adapt
itself to the new requirements.WARNINGThe temperature difference
between the driver’s and the passenger’s
sides must not be greater than 7°C in order
to be accepted by the system.
The selections made by the system in au-
tomatic mode can be customized by man-
ually acting on the following controls:
– fan speed adjustment knob (3)
– air distribution selection button (8)
– inside air recirculation on/off button (7)
v– climate control compressor on enable
button (12)
√
.
Manually selecting one or more of these
functions turns off the right led on the but-
ton (14)
AUTO
.With one or more functions switched on
manually, the temperature control for the air
admitted to the passenger compartment will
in any case continue to be monitored auto-
matically by the system (left led on button
14
AUTO
on), except with the climate con-
trol compressor off.
In fact, in this condition, the temperature
of the air admitted into the passenger com-
partment cannot be lower than the outside
air temperature; this condition is indicated
by the turning off of the two leds on but-
ton (14) AUTO
and flashing on the display
(2) and/or (5) related with the tempera-
ture rate that cannot be obtained.

GETTING TO KNOW YOUR CAR
122
LO function
(highest cooling power - fig. 104)
It is switched on by setting a temperature
lower than 16.5°C on the display; this set-
ting is shown by both displays.
This function can be switched on when you
wish to cool the passenger compartment as
quickly as possible, by taking the greatest
advantage from the system potential.
The function cuts off air heating, switches
on both internal air recirculation (to prevent
hot air from entering the compartment) and
the climate control compressor, brings air
distribution to E
and 5
thfan speed.
With the function switched on, however,
all the manual settings can be made.
To switch the function off, you only need
to turn the ring of a knob (1) or (6) of the
temperature set to a value greater than
16.5°C; the opposite display will show
16.5°C.
fig. 104
A0B0065m
By pressing button (14)
AUTO
the display
indicates a temperature of 16.5°C and falls
within an operating condition with automatic
temperature control.

GETTING TO KNOW YOUR CAR
128
When the climate control compressor is off,
it is not possible to admit air to the pas-
senger compartment with a temperature be-
low 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 (14
AUTO
-
fig. 110) goes off.
The switching off of the climate control
compressor remains in storage even when
the engine has been stopped. To resume au-
tomatic control for switching on the climate
control compressor, press button (12) √
again, the button led will turn on, or press
button (14)
AUTO
; in which case, the other
manual settings set will be cancelled.
fig. 110
A0B0071m
Operation of the climate
control compressor is nec-
essary for cooling and dehumidify-
ing the air; it is advisable to keep
this function always on, to prevent
window misting problems.
WARNING