2003 Mercedes E-Class Owner's Manual - Page 180

Controls in detail Automatic climate control* Charcoal filter An activated charcoal filter markedly reduces bad odors and removes pollutants from air entering the passenger compartment. Activating Press button e. The indicator lamp on the button lights up. The system switches automatically to the air recirculation mode if the carbon monoxide (CO) or nitrogen oxide (NOX) concentration of the outside air increases beyond a predetermined level. Deactivating Press button e. The indicator lamp on the button goes out. Rear window defroster The rear window defroster uses a large amount of power. To keep the battery drain to a minimum, switch off the defroster as soon as the rear window is clear. The defroster is automatically deactivated after approximately 6 to 17 minutes of operation depending on the outside temperature. Activating The automatic air recirculation mode does not function if economy mode ACOFF is selected or if the outside temperature has fallen below 41°F (5°C). The activated charcoal filter should be switched off when windows fog up on the inside, or if the passenger compartment needs to be quickly heated or cooled down. Press button F. The indicator lamp on the button comes on. Deactivating Press button F again. The indicator lamp on the button goes out. i If you keep button e pressed, the side windows and the sliding/pop-up roof* will be returned to their previous position. i If you keep button e pressed, the side windows and the sliding/pop-up roof* will be closed. 180