2010 Mercedes GL-Class Owner's Manual - Page 191

3-zone automatic climate control Symbol Driver's side Z Symbol Function Passenger side M Directs air to the windshield and side air vents Directs air through the center, side and rear passenger compartment air vents Directs air to the footwells and side air vents When using the Voice Control System, the blower speed reduces automatically. When the Voice Control System is not used anymore, the blower speed increases to the previously selected level. 189 \ P You can use this setting to defrost the windshield, for example if it is iced up. You can also defog the windshield and the side windows. i Keep this setting selected only until the windshield or the side windows are clear again. Activating X c O X Press the desired air distribution button Z, \, or c for the driver's side, or M, P, or O for the passenger side. The automatic mode is switched off. The indicator lamp in the desired button comes on. Press button ¦. The indicator lamp in the button comes on. The climate control switches to the following functions automatically: Rmost efficient blower speed and heating power, depending on outside temperature Rair flows onto the windshield and the front door windows (side air vents must be open) air conditioning compressor switches on at outside temperatures above approximately 41‡ (5†) for airdrying Rthe Adjusting air volume USA only X Decrease/increase: Press button I or K. The automatic mode is switched off. The selected blower speed is shown in air volume display G (Y page 181). Decrease/increase: Press button I or K. The automatic mode is switched off. The selected blower speed appears in display J (Y page 183). Canada only X Adjustments You can adjust the air volume and the temperature when the front defroster is switched on. The air flow will remain on the windshield and front door windows. X Press button I to decrease or button K to increase air volume to the desired level. The air volume decreases/increases to the next lower/higher blower speed and heating switches to the temperature that Z Controls in detail Front defroster