2009 Mercedes R-Class Owner's Manual - Page 185

Controls in detail Climate control X Deactivating: Press button · or Q. The indicator lamp in button U goes out. The automatic operation of air volume switches off. The selected blower speed is shown in air volume display b (Y page 178). Press air distribution button {, a, or Y. The indicator lamp in button U goes out. The automatic operation of air distribution switches off. Adjusting air distribution The air distribution can be adjusted manually. The symbols on the buttons represent the following functions: Symbol { a Y Function Directs air to the windshield and side air vents Directs air through the center and side air vents Directs air to the footwells and side air vents Adjusting air volume X or X Decrease/increase: Press button · or Q. The automatic mode is switched off. The selected blower speed is shown in air volume display b (Y page 178). Front defroster 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. Setting the temperature You can adjust the air temperature on each side of the passenger compartment. You should raise or lower the temperature setting in small increments, preferably starting at 72‡ (22†). X Increasing/decreasing: Turn temperature control 1 and/or 7 (Y page 178) slightly clockwise or counterclockwise. X Press the desired air distribution button {, a, or Y. The indicator lamp in button U goes out. The automatic mode is switched off. Air distribution is controlled according to the desired button. i Keep this setting selected only until the windshield or the side windows are clear again. Activating X Press button |. The indicator lamp in the button comes on. The climate control switches to the following functions automatically: Z 183