2005 Saab 9-5 Owner's Manual - Page 82

80 Instruments and controls Recirculation will be switched on if the speed of the car is less than 6 mph (10 km/h) and will be switched off when the speed has risen above 20 mph (30 km/h), but not if the ECON mode has been programmed according to "Programming II". To prevent misting, this function is disengaged at outdoor temperatures lower than 45°F (+7°C) and engaged at temperatures above 50°F (+10°C). -This function is useful to prevent fumes being drawn into the car in traffic jams. Recirculation is switched on about 45 seconds after starting if the outdoor temperature is above 86°F (+30°C) and the selected temperature for the cabin is well below the actual temperature in both temperature zones. Programming II It is also possible to customize the ACC system, e.g. to adapt to driving and weather conditions. Function Operation in AUTO mode after Programming II Standard operation in AUTO mode The A/C compressor will not activate unless the outdoor temperature is above 55°F (+13°C). -This function saves fuel by delaying the activation of the A/C compressor. However, in wet weather it is advisable to have the A/C compressor running when outdoor temperatures are below 57°F (+14°C), as the A/C system reduces the likelihood of the windows fogging up. A/C compressor cuts in when outdoor temperature is above 41°F (+5°C) The heating will come on Rear-window heating about five seconds after the can only be switched engine has started if the out- on manually. door temperature is below 41°F (+5°C). -This function helps to prevent ice or mist forming on the rear window in cold, damp weather. Fuel consumption may increase slightly.