2003 Mercedes CL-Class Owner's Manual - Page 160

Controls in detail Automatic climate control i The current climate control settings (ON/OFF, temperature, air volume, activated charcoal filter, etc.) are stored for each electronic key before it is removed from the starter switch or when the vehicle is locked using the KEYLESS-GO* card ( page 105). If the vehicle interior is hot, ventilate the interior before driving off. Keep the air intake grille in front of the windshield free of snow, leaves, sticks and any other debris. Do not obstruct air volume by placing objects on the air volume-through exhaust slots below the rear window. Setting the temperature Use temperature controls ( page 159) 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. The thumbwheel 4 is located between the center air vents ( page 157). 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. 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 up or down until the display shows the desired temperature. The automatic climate control system will accordingly adjust the interior air temperature. 160