Setting the side air vents

To open/close: turn thumbwheel 3 up or

down. To open/close: turn thumbwheel 3 up or down.

completely shut, even if side air vent 2 is Side window defroster vent 1 is never completely shut, even if side air vent 2 is shut

    See also:

    Safety notes
    WARNING Work improperly carried out on electronic components and associated software could cause them to cease functioning. Because the vehicle's electronic components are interconnected, a ...

    Checking the vehicle and trailer weight
    - To check that the weights of the towing vehicle and the trailer comply with the maximum permissible values, have the vehicle/trailer combination (including the driver, passengers, and cargo ...

    Problems with your vehicle
    If you should experience a problem with your vehicle, particularly one that you believe may affect its safe operation, we urge you to contact an authorized Mercedes-Benz Center immediately to ...