See also:

General notes
WARNING All categories of messages contain important information which should be taken note of and, where a malfunction is indicated, addressed as soon as possible at an authorized Mercedes-B ...

Setting the center air vents
1. Center air vent, left 2. Center air vent, right 3. Center vent thumbwheel, right 4. Center vent thumbwheel, left •► To open/close: turn thumbwheels 3 and 4 up or down. ...

Override feature for the rear sidewindows
WARNING   When children ride on the vehicle's rear seats, activate the override switch. Otherwise, the children could be injured, e.g. by trapping themselves in the rear side window. ...