2007 Mercedes GL-Class Owner's Manual - Page 242

Controls in detail 3-zone automatic 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 cooling function, only operational when the engine is running, cools the vehicle down to the selected interior temperature. The cooling function also dehumidifies the air in the vehicle interior, thereby preventing the windows from fogging up. Deactivating It is possible to deactivate the air conditioning (cooling) function of the automatic climate control system. The air in the vehicle will then no longer be cooled or dehumidified. Press button 9 ( page 232). The indicator lamp on the button goes out. The cooling function switches off after a short delay. Activating Warning! 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 :. 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. Moist air can fog up the windows. You can dehumidify the air with the air conditioning. Press button 9 again. The indicator lamp on the button comes on. The air conditioning uses the refrigerant R-134a. This refrigerant is free of CFCs which are harmful to the ozone layer. 241