2004 Mercedes E-Class Owner's Manual - Page 193

Controls in detail Automatic climate control* Deactivating Press button e. The indicator lamp on the button goes out. 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. Deactivating the climate control system Deactivating It is possible to deactivate the automatic climate control system. Press button M until the display is cleared. The climate control system is deactivated. Reactivating Press button M again. i With the climate control system deactivated, the air flow and circulation are switched off. Only choose this setting temporarily to prevent the windows from fogging up. i If you keep button e pressed, the side windows and the sliding/pop-up roof* will return to their previous position. 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. The automatic air recirculation mode does not function if ACOFF mode is selected or if the outside temperature has fallen below 41°F (5°C). 193