2008 Mercedes SL-Class Owner's Manual - Page 194

Controls in detail Automatic climate control Air volume in automatic mode The air volume settings are the same for the entire passenger compartment. Activating Press control button 9 ( page 190). The control button is engaged. The U symbol on the control button comes on. Deactivating Press control button 9 ( page 190) once more. The control button sticks up slightly. The U symbol on the control button goes out. Adjust the air volume manually ( page 195). Setting the temperature Use temperature controls 6 and b ( page 190) 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). The automatic climate control will adjust to the set temperature as fast as possible. Increasing Turn temperature control 6 and/or b ( page 190) slightly clockwise. The automatic climate control system will correspondingly adjust the interior air temperature. Decreasing Turn temperature control 6 and/or b ( page 190) slightly counterclockwise. The automatic climate control system will correspondingly adjust the interior air temperature. 193