2007 Volvo S40 Owner's Manual - Page 82

Electronic Climate Control (ECC) - option automatically if AUTO is selected. The previously set blower speed is disconnected. NOTE If the knob is turned counterclockwise and the blower indication in the display goes out, the blower and the air conditioning are switched off. The display shows the blower symbol and OFF. 3. 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. 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. Timer The timer function minimizes the risk of fogging, or stale air when the recirculation function is selected. See page 74 for information on setting the recirculation timer. NOTE Recirculation is always disengaged if the defroster button is engaged to clear ice or condensation from the side windows. 4. Defroster Directs airflow to the windshield and side windows and increases blower speed. When the defroster is activated: Air flows to the windows at high blower speed. The LED in the defroster button lights up when this function is activated. The air conditioning system is controlled to provide maximum air dehumidification. The air conditioning is automatically switched on (can be switched off by pressing button 6). The air is not recirculated. 5. Airflow controls Press one of the three buttons in the illustration to activate the selected airflow. A symbol in the display above the climate control panel and a lit LED in the selected button indicate that the manual function has been selected. With manually selected airflow both warm and cool air can be selected. See also the table on page 90.