2009 Mercedes E-Class Owner's Manual - Page 190
2009 Mercedes E-Class Manual
Page 190 highlights
Controls in detail Climate control system i For draft-free ventilation, move the adjustable center and side air vents to the middle position. Center air vents Side air vents Rear center console air vents Example illustration driver's side 1 Left side defroster air vent, fixed 2 Left side air vent, adjustable 3 Thumbwheel for air volume control for Example illustration: Dual-zone automatic climate control 1 Left rear center air vent, adjustable 2 Right rear center air vent, adjustable 3 Thumbwheel for air volume control for 1 Left center air vent, adjustable 2 Right center air vent, adjustable 3 Thumbwheel for air volume control for adjustable left side air vent X adjustable right center air vent 4 Thumbwheel for air volume control for Opening/closing: Turn thumbwheel 3 upward or downward. right rear center air vent 4 Thumbwheel for air volume control for left rear center air vent X adjustable left center air vent X Opening/closing: Turn thumbwheel 3 or 4 upward or downward. Opening/closing: Turn thumbwheels 3 and 4 upward or downward. 188