2006 Mercedes CLK-Class Owner's Manual - Page 206

Controls in detail Automatic climate control (CLK 500/CLK 55 AMG) Activating Press button e ( page 197). The indicator lamp on the button comes on. Warning! Deactivating Press button e ( page 197). The indicator lamp on the button goes out. G i If you press and hold button e, the side windows will close. 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 e button or by pressing or pulling the respective window switch. i If you press and hold button e, the side windows will return to their previous position. A side window will only return to its previous position if it has not been moved to another position using the respective side window switch after it was closed with button e. A side window that was moved will remain in its current position if button e is used to re-open the remaining side windows. i 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. 205