2011 Mercedes E-Class Owner's Manual - Page 148

146 Setting the air vents Setting the side air vents : Air vent thumbwheel X To open/close: turn thumbwheel = up or down. ; Air vent X Climate control i Side window defroster vent : is never completely shut, even if side air vent ; is shut. Setting the air vent in the glove box When automatic climate control is activated, the glove box can be ventilated, for instance to cool its contents. The level of airflow depends on the airflow and air distribution settings. To open/close: turn thumbwheel : clockwise or counter-clockwise. Setting the rear-compartment air vents Setting the center vents in the rear compartment ! Close the air vent when heating the vehicle. At high outside temperatures, open the air vent and activate the "cooling with air dehumidification" function. Otherwise, temperature-sensitive items stored in the glove box could be damaged. : Rear-compartment air vent thumbwheel ; Rear-compartment air vent, right = Rear control panel for 3-zone automatic climate control14 ? Rear-compartment air vent, left X To open/close: turn thumbwheel : up or down. 14 For Canada only.