2005 Mercedes SL-Class Owner's Manual - Page 189

Controls in detail Automatic climate control Defrosting windshield 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! Activating Press button , ( page 183). The indicator lamp on the button comes on. Warning! i These settings should only be selected for a short time. Activating Press button P ( page 183). The indicator lamp on the button comes on. Deactivating Press button P ( page 183). The indicator lamp on the button goes out. Defrosting is turned off. G G When the outside temperature is below 41°F (5°C), only switch to air recirculation mode for short periods to prevent window fogging. Never operate the side windows if there is the possibility of anyone being harmed by the closing procedure. In the event that the procedure causes potential danger, the closing of the side windows can be immediately halted by releasing the , button or by pressing or pulling the respective window switch. 187