2007 Mercedes R-Class Owner's Manual - Page 225

Controls in detail Climate control Adjusting air volume Five blower speeds are available. Press button ˜ to decrease or button Q to increase air volume ( page 220) to the desired level. The indicator lamp on button U ( page 220) goes out. The automatic operation of air volume switches off. The selected blower speed is shown in the air volume display b ( page 220). Adjusting air volume for the center and side air vents Opening the center air vents Turn thumbwheels 5 and 6 ( page 218) upward. The corresponding center air vents on the left and right are open. Closing the center air vents Turn thumbwheels 5 and 6 ( page 218) downward. The corresponding center air vents on the left and right are closed. Opening the side air vents Turn thumbwheels 2 and 7 ( page 218) upward. The corresponding side air vents on the left and right are open. Closing the side air vents Turn thumbwheels 2 and 7 ( page 218) downward. The corresponding side air vents on the left and right are closed. Front defroster You can use this setting to defrost the windshield, for example if it is iced up. You can also use it to defog the windshield and side windows. i Keep this setting selected only until the windshield or the side windows are clear again. When the defrost setting has been selected, only the rear window defroster can be switched on. No other settings are possible. Activating Press button 0 ( page 220). The indicator lamp on the button comes on. 224