2007 Mercedes GL-Class Owner's Manual - Page 227

Controls in detail Climate control Convenience opening Press button : for approximately 2 seconds. The windows and/or tilt/sliding sunroof* will return to their previous positions. You can release button : once the opening procedure has begun. The windows and tilt/sliding sunroof* continue opening until they have reached their previous positions. The indicator lamp on the button goes out. The air recirculation mode is deactivated. Air conditioning The air conditioning is operational while the engine is running and cools the interior air to the temperature set by the operator. In addition, the air conditioning dehumidifies the interior air at outside temperatures above 41°F (5° C) and helps prevent window fogging. The closing of the windows and the tilt/sliding sunroof* can be reversed by again pressing and holding the : button. Convenience closing Press button : for approximately 2 seconds. The windows and/or tilt/sliding sunroof* will close. You can release button : once the closing procedure has begun. The windows and tilt/sliding sunroof* continue closing until they are fully closed. The indicator lamp on the button comes on. The air recirculation mode is activated. i Condensation may drip out from underneath the vehicle. This is normal and not an indication of a malfunction. i A window or the tilt/sliding sunroof* will only return to its previous position if it has not been moved to another position using the respective window switch or tilt/sliding sunroof* switch after it was closed with button :. Warning! G If you turn off the cooling function, the interior air is not dried. The windows can fog up more quickly. Window fogging may impair visibility and endanger you and others. 226