2002 SAAB 9-3 Owners Manual

81 Instruments and controls
Defroster
Floor
incl. rear side windows
Panel
incl. rear center vent As the winter comfort setting we recommend that the distribution
knob be turned two steps to the left from the Defroster position.
IB762
Settings for
various weather
conditions
Summer - sunny Summer - cloudy Winter - comfort Winter - defroster
IB983IB984IB985
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82 Instruments and controls
The air conditioning is combined with the
conventional climate-control system and is
switched on by pressing the button,
provided that the fan control is in
position 1-4.
The incoming air is treated in three stages:
first it passes through a filter; it is then dehu-
midified and cooled and, finally, if required,
heated.
The air conditioning can be used at outdoor
temperatures down to 32°F (0°C). Condensation water When the A/C compressor is on, the incom-
ing air is dehumidified. The resulting con-
densation water is drained away through an
outlet under the car.
It is therefore perfectly normal for water to
be seen dripping from this outlet when the
car is parked. The warmer the ambient air
and the higher the humidity, the more con-
densation will form. When the button is depressed the
regular air intake will be closed. In this posi-
tion, the air inside the cabin is recirculated.
Use recirculation when you want rapid cool-
ing, at extremely high air temperatures.
Switch the air conditioning (A/C) on first.
Recirculation can be useful to activate man-
ually to prevent unpleasant smells being
drawn into the car from outside.
Note that recirculation should not be
used when the outside temperature is
lower than 50°F (+10°C) except briefly,
e.g. to avoid unpleasant air from enter-
ing the car. Prolonged use of recircula-
tion could cause the windows to mist or
ice up.
Air conditioning (A/C)
Recirculation
IB794
Air vent at rear side window
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83 Instruments and controls
The button is located on the climate-control
panel. An LED in the button is lit as long as
heating is on.
Switch off the heating as soon as the rear
window is clear. It will go off automatically
after about 10 minutes.
If the battery voltage is lower than 12 V the
heating will be switched off earlier so that
the battery can get the benefit of the alterna-
tor charge.
Avoid placing sharp objects on the rear
parcel shelf; the heater elements may suffer
damage if such objects touch the rear win-
dow. Do not switch the heating on until you
have started the engine.
Recommended settings in
severe cold On starting with a cold engine, set the fan
switch to position 2 and select defrost to
heat the cabin and defrost the windshield as
quickly as possible.
When the engine is warm enough for the
reading of the temperature gauge to start
rising, fan setting 3 may be chosen. Once
the windshield is clear, the air-distribution
control should be shifted two steps to the
left.
The warm-up time of the engine depends on
the kind of driving. Town driving in high gear
with a low RPM requires a longer warm-up
time than highway driving with a higher
RPM.
Do not use position 4 on the fan switch, as
this is mainly intended to provide rapid cool-
ing in hot weather.
Fault diagnosis and care of A/C sys-
tem, see page 226. Electrically heated rear
window/external mirrors
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84 Instruments and controlsAutomatic climate
control (ACC)The air is drawn in through an intake at the
bottom edge of the windshield. It passes
through an efficient filter before being
routed through the climate-control system
and into the cabin. The cabin discharge vent
is located on the right behind the rear
bumper. The air discharge vents should be
kept free of snow and ice in the winter.
ACC (Automatic Climate Control) automati-
cally maintains the desired cabin tempera-
ture, regardless of the weather outside.
The system will achieve the desired temper-
ature in the quickest possible way.
Note that heating or cooling is not
speeded up by setting the temperature
higher or lower than you really want.
For the ACC system to be most effective, all
windows, and the sunroof if there is one,
must be closed, and the panel vents must
be open.
The incoming air is treated in three stages:
first it passes through a filter; it is then dehu-
midified and cooled and, finally, if required,
heated. The temperature interval within which you
can make adjustments is 58-82°F
(15-27°C). Outside it, there is the HI position
(max. heat and high fan speed) and the LO
position (max. cooling and max. fan speed).
The displayed temperature is not the actual
temperature but corresponds to the comfort
level normally experienced at that tempera-
ture after allowance has been made for the
air flow, relative humidity, solar radiation,
etc., currently prevailing inside the car.
 The most usual temperature setting is
66-74°F (19-23°C), depending on per-
sonal preference and what clothing is
worn.  It is recommended that changes in the
temperature setting be made in steps of
2°F (1°C).
 Conversion between °C and °F is done in
the SID unit; see ”Units and language ver-
sions”, page 74.
 During the cooling phase in warm
weather the panel vents must be open.
 Do not manually select recirculation in
cold/wintery weather. The reduced air
flow can cause misting and ice on the
inside of the windows.
IB794
Air vent at rear side window
IB032
Dash vent 1 Adjusting the direction of the air flow.
2 Adjusting the air flow
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85 Instruments and controls
The system uses five sensors:
 Outside-air temperature.
 Cabin-air temperature.
 Sun sensor.
 Blended-air temperature (located in the
heater unit).
 Coolant temperature.
The sun sensor is centrally located on the
dashboard panel between the defroster
nozzles. Note that if anything is placed over
the sun sensor the ACC system will not
function properly.
Condensation water When the A/C compressor is on, the incom-
ing air is dehumidified. The resulting con-
densation water is drained away through an
outlet under the car.
It is therefore perfectly normal for water to
be seen dripping from this outlet when the
car is parked. The warmer the ambient air
and the higher the humidity, the more con-
densation will form.
IB763
1 Sun sensor
2 Interior-temperature sensor
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86 Instruments and controlsFunctions The function you have manually selected will be locked in, while
other functions remain automatic.
Temperature maintenance, except in positions HI and LO, is, there-
fore always automatic. The active function is shown in the display.
A manual selection is cancelled by pressing AUTO or by repeated
pressing of the button used to make the manual choice. For further
functions, see ”Programming II”, page 91.
Button Display
When the system is set to AUTO, the
temperature, air distribution, fan
speed and recirculation will be con-
trolled automatically.
The air conditioning is activated auto-
matically if the outside temperature is
above 32°F (0°C). When AUTO is
depressed again, all automatically
selected settings are shown on the
display.
Button Display
Setting the cabin temperature
1 Switch on the ignition.
2 Set the desired cabin tempera-
ture using the two buttons.
3 The temperature you have now
chosen will be stored, remaining
in the memory even when the
ignition is switched off, unless
ACC has been programmed with
a different "ON" setting. See pro-
gramming, page 90.
IB764
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87 Instruments and controls
Button Display
One touch:
When Defroster is manually selected
you will get demisting of all windows
(the air flow to the rear side windows
will be shut off) by high fan speed. Air
will be routed to the defroster noz-
zles. Normal temperature control,
recirculation and ECON will be
switched off but the electric heating
of the rear window and outside mir-
rors will be switched on. Current set-
tings will be shown on the display and
AUTO will go out.
The demister function remains oper-
ative until another selection is made,
but the heating of the rear window
and the outside mirrors will be
switched off after a certain time,
depending on the outside tempera-
ture.
Two touches:
Two touches on the defroster button
routes the air to the windshield with-
out any increase in fan speed and
without switching on the rear-window
heating.
To revert to the previous setting,
press the AUTO button.
Button Display
Panel (and center rear vent)
Floor, front and rear (and rear side
windows)
Defroster - floor (front and rear) Press
simulta-
neously
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88 Instruments and controlsButton Display
Panel - floor (front and rear) and
center rear vent
Electrically heated rear window/elec-
trically heated door mirrors are con-
trolled automatically, though they
can also be programmed for manual
control; see
”Programming II”, page 91.
The temperature, air distribution and
fan speed will still be controlled auto-
matically.
Press or to
increase/decrease the fan speed
(the fan setting is shown on the dis-
play).
To revert to automatic fan control,
press AUTO. Other manual selec-
tions will revert to automatic control
at the same time. Press
simulta-
neously
Button Display
Recirculation is controlled automati-
cally, but there is also manual
ON/OFF control.
When this function is activated the
A/C compressor will be shut off.
Reconnection can be made with one
press on AUTO or pressing ECON.
The function can be programmed for
automatic A/C disconnection when
the outside temperature falls below
57°F (+14°C), see "Programming II",
page 91.
The temperature, air distribution and
fan speed will still be controlled auto-
matically.
After you have depressed OFF there
will be no control.
You can re-activate by pressing
AUTO or by again pressing OFF,
which gives the latest setting.
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