2007 Saab 9-3 Owner's Manual - Page 106

106 Instruments and controls Automatic climatecontrol system (ACC) Fresh air for the cabin is drawn in through an inlet at the bottom edge of the windshield. It passes through an effective filter before reaching the climate control system and delivery into the cabin. The air is evacuated via openings in the parcel shelf. It is then led through outlets on either side of the car behind the rear bumper. The Automatic Climate-Control system (ACC) automatically maintains the desired cabin temperature, regardless of the weather outside. The system will achieve the desired temperature in the quickest possible way. Note that heating or cooling is not speeded up by setting the temperature higher or lower than the final temperature you desire. To optimize the performance of the air conditioning system, all windows and the moonroof 3 should be shut. The air vents in the fascia must be open. ACC panel 1 2 3 4 5 6 7 Temperature setting: left-hand side Manual setting of air distribution Recirculation AUTO (automatic regulation) A/C Defroster Rear window heating 8 9 10 11 12 13 Temperature setting: right-hand side Seat heating, front right seat Manual increase of fan speed Hazard warning lights Manual decrease of fan speed Seat heating, front left seat The incoming air is treated in three stages: first it passes through a filter; it is then dehumidified and cooled; and finally, if required, it is heated. The filter is a combined particle and charcoal filter. It is so efficient that levels of noxious substances such as benzene and toluene are also reduced. To reduce potential misting on the insides of the windows, the glass should be cleaned with a quality glass cleaner. How often this will need to be done depends on how clean the air is - if there are smokers in the car, the windows will need to be cleaned more frequently.