2010 Volvo S80 Owner's Manual - Page 131

04 Comfort and driving pleasure Climate system Recirculation/air quality system Recirculation This function can be used to shut out exhaust fumes, smoke, etc from the passenger compartment. The air in the passenger compartment is then recirculated, i.e., no air from outside the car is taken into the car when this function is activated. The indicator light in the button will illuminate when recirculation is selected. If the air in the car recirculates for too long, there is a risk of condensation forming on the insides of the windows, especially in winter. NOTE When Defroster is selected, recirculation is always deactivated. • The left orange light comes on - the air quality sensor is disengaged. • The center green light comes on - recirculation not engaged, providing it is not required for cooling in hot weather. Interior Air Quality System-IAQS* This system consists of a multifilter and an air quality sensor. The filter helps remove gases and particles from the incoming air, thereby reducing the amounts of odors and contaminants entering the vehicle. The air quality sensor detects increased levels of contaminants in the outside air. When the air quality sensor detects contaminated outside air, the air intake closes and the air inside the passenger compartment is recirculated, i.e., no outside air enters the vehicle. The filter also cleans recirculated passenger compartment air. When the AUTO button is depressed the air quality sensor is always engaged. • The right orange light comes on - recirculation is engaged. NOTE • • • The air quality sensor should always be engaged in order to obtain the best air in the passenger compartment. Recirculation is limited in cold weather to avoid fogging. If the insides of the windows start fogging, disengage the air quality sensor. Use the defroster function to increase airflow to the front, side, and rear windows. 04 Timer The timer function minimizes the risk of fogging, or stale air when the recirculation function is selected by automatically switching off the function after a certain length of time, depending on the ambient temperature. Activate/ deactivate the function under Climate control settings Recirculation timer. For a description of the menu system, see page 122. Activating the air quality sensor Switch between the three functions by pressing the button repeatedly. `` * Option/accessory, for more information, see Introduction. 131