2003 Mercedes S-Class Owner's Manual - Page 177

Controls in detail Automatic climate control Setting the temperature Use temperature controls ( page 175) 10 for the left side or 8 for the right side to separately 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°F (22°C). Adjusting the temperature for center air vents When outside temperatures are low, you can manually raise the air temperature for the center and side air vents. Thumbwheel 4 is located between the center air vents ( page 174). Automatic temperature control Turn thumbwheel 4 to A. The indicator lamp above the thumbwheel lights up. The temperature is automatically adjusted to the set value. Turning on warm air Turn thumbwheel 4 in the direction of the white marking. Warm air will enter from the center air vent. Turning on cooler air Turn thumbwheel 4 in the direction of the blue marking. Cooler air will enter from the center air vent. i When operating the climate control system in automatic mode, you will only rarely need to adjust the temperature, air volume and air distribution. Increasing/decreasing Press button 10 or 8 repeatedly until the display shows the desired temperature. The automatic climate control system will correspondingly adjust the interior air temperature. 177