2003 Mercedes C-Class Owner's Manual - Page 160

Controls in detail Automatic climate control* Maximum cooling MAXCOOL If the left and right air distribution controls as well as the airflow volume control are set to U and there is a high need for cooling, the display "AUTO MAXCOOL" appears. This provides the fastest possible cooling of the vehicle interior (when windows and sliding/pop-up roof* are closed). Defrosting Air recirculation mode Switch to air recirculation mode to prevent unpleasant odors from entering the vehicle from the outside. This setting cuts off the intake of outside air and recirculates the air in the passenger compartment. Warning! i These settings should only be selected for a short time. Activating Press button P. The indicator lamp on the button lights up. Switch off air recirculation, if selected. Press button O. The indicator lamp on the button goes out. Close center air vents. Adjust side air vents upwards. Deactivating Press button P. The indicator lamp on the button goes out. Defrosting is turned off. G When the outside temperature is below 41°F (5°C), only switch to air recirculation mode for short periods to prevent window fogging. Activating Press button O. The indicator lamp on the button lights up. 160