2009 Mercedes S-Class Owner's Manual - Page 191

Controls in detail Climate control system B-pillar air vents Adjusting air distribution Dual-zone automatic climate control The air distribution can be adjusted manually. The symbols located in display 4 (Y page 180) represent the following functions: Symbol b Vehicles with 4-zone automatic climate control only 1 Thumbwheel for air volume control for Symbol Y d Function Directs air to the footwells Directs air to the footwells and through the side air vents Function Directs air into the entire vehicle interior Directs air to the windshield, through the side air vents and cockpit air vent (Canada only) Directs air to the windshield and through the side defroster air vents Directs air to the windshield, through the side air vents and to the footwells Directs air through the cockpit (Canada only), center, side and rear passenger compartment air vents X c side air vent 2 Side air vent, adjustable X Press air distribution control rocker switch © or ª until the desired symbol appears in display 4 (Y page 180). The AUTO indicator for automatic air distribution in display 4 goes out. The automatic mode is switched off, and air distribution is controlled according to the desired setting. Z 4-zone automatic climate control The air distribution can be adjusted separately on each side of the passenger compartment. The symbols on the buttons represent the following functions: Opening/closing: Turn thumbwheel 1 to the left or to the right. X a Z 189