2002 Mercedes C-Class Owner's Manual - Page 161

Instruments and controls Climate control Operation Driving Instrument cluster display Practical hints Car care Technical data Index 158 Switching off air recirculation and activating convenience opening: The indicator lamp in the O button is illuminated. Press button O for more than 2 seconds, the side windows and the sliding/pop-up roof return to the position they were in before closing. A window or the sliding/pop-up roof opened manually after convenience closing will no longer be returned to the position it was in before closing when convenience opening is selected. The system automatically switches from air recirculation to fresh air: • after 30 minutes if the outside temperature is above about 40°F (5°C), • after 5 minutes if the outside temperature is below about 40°F (5°C), • after 5 minutes if economy mode S is selected. The system switches automatically to air recirculation at high outside temperatures. A quantity of outside air is added after a maximum of 30 minutes. If the windows should fog up from the inside, switch from recirculated air back to fresh air. Air recirculation Select air recirculation: The indicator lamp in the O button is not illuminated. Press button O briefly. The indicator lamp in the button illuminates. To switch off the air recirculation: The indicator lamp in the O button is illuminated. Press button O briefly. The indicator lamp in the button goes out. Switching on air recirculation and activating convenience closing of power windows and sliding/ pop-up roof: The indicator lamp in the O button is not illuminated. Press button O for more than 2 seconds, the side windows and the sliding/pop-up roof will be closed. The indicator lamp in the button illuminates.