2004 Mercedes SLK-Class Owner's Manual - Page 174

Controls in detail Automatic climate control Decreasing Turn the outer adjustment ring slightly to the left. The automatic climate control system will correspondingly adjust the interior air temperature. Adjusting the temperature for center and side air vents When outside temperatures are low, you can manually raise the air temperature for the center and side air vents. The controls 3 are located between the center air vents ( page 170). Turning on warm air Press the left button (red). The indicator lamp on the button comes on. Warm air will enter from the center and side air vents. Turning off warm air Press the left button (red). The indicator lamp on the button goes out. The air from the outlets will return to the temperature set in the system. Turning on cooler air Press the right button (blue). The indicator lamp on the button comes on. Cooler air will enter from the center and side air vents. Turning off cooler air Press the right button (blue). The indicator lamp on the button goes out. The air from the outlets will return to the temperature set in the system. Adjusting air volume Use air volume control a ( page 171) for both automatic and manual air volume adjustment. Adjusting manually Press the control knob. The U light on the control knob goes out. You can now select one of nine air volume settings. Adjusting automatically Press the control knob. The U light on the control knob comes on. The airflow is adjusted automatically. 173