2005 Mercedes S-Class Owner's Manual - Page 207

Controls in detail Automatic climate control To open center air vents and to adjust the booster blower: Turn thumbwheel 3. Rear side air vents Rear passenger compartment climate control* The automatic climate control is operational whenever the engine is running. You can operate the climate control system in either the automatic or manual mode. The system cools or heats the interior depending on the selected interior temperature and the current outside temperature. 4 Rear side air vent, right and left 5 Air volume control for rear side air vent To open rear side air vents: Turn thumbwheel 5 towards the window. The automatic climate control system is adjustable individually for the rear passenger compartment. The control panel is located in the rear center console. Nearly all dust particles, pollutants and odors are filtered out before outside air enters the passenger compartment through the air distribution system. i The booster blower allows air volume speed to the rear passenger compartment to be increased at four different levels. The temperature at the air vents for rear passenger compartment 1 and 2 is the same as at the dashboard center air vents. 205