2004 Mercedes CL-Class Owner's Manual - Page 177

Controls in detail Automatic climate control Nearly all dust particles, pollutants and odors are filtered out before outside air enters the passenger compartment through the air distribution system. The air conditioning will not engage (no cooling) if the ± mode is selected ( page 183). Warning! i The current climate control settings (ON/OFF, temperature, air volume, activated charcoal filter, etc.) are stored for each SmartKey before it is removed from the starter switch or when the vehicle is locked using the SmartKey with KEYLESS-GO* ( page 116). 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 a and 8 ( page 175) 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). Increasing/decreasing Press button a 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. G Follow the recommended settings for heating and cooling given on the following pages. Otherwise the windows could fog up, impairing visibility and endangering you and others. i When operating the climate control system in automatic mode, you will only rarely need to adjust the temperature, air volume and air distribution. 176