2005 Saab 9-3 Owner's Manual - Page 108

106 Instruments and controls Condensation water Air conditioning (A/C) 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 1-5. 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. If the engine coolant gets too hot, the A/C compressor will be turned off. Convertible: When the soft top or all the windows are open in a hot, humid climate, it is recommended to switch off the air conditioning to save fuel. Also, if the air conditioning is on, condensation may form on cold surfaces such as the floor air ducts. When the A/C compressor is on, the incoming air is dehumidified. The resulting condensation 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 condensation will form. Recirculation When the button is pressed, the regular air intake will be closed. In this mode, the air inside the cabin is recirculated. Use recirculation when you wish for rapid cooling at very high outside temperatures. Switch the air conditioning (A/C) on first. If necessary, recirculation can be switched on manually to avoid unpleasant air from entering the car. Only use recirculation for a short period of time at temperatures lower than 50°F (+10°C), such as to avoid unpleasant air. Mist or ice may otherwise form on the windows. Panel vent Air vents The air vents swivel universally, so that air can be directed as desired. In winter, for instance, the outer vents can be directed onto the door windows for enhanced demisting. The amount of air can be individually controlled by the regulator on each vent. If you wish to reduce the airflow, start by halfshutting the vent in question.