See also:

Fuse box on the left in the direction of travel
Open the hood. Remove any existing moisture from the fuse box using a dry cloth. AMG vehicles: remove the control unit above the fuse box. To open: undo screws 1 with an Allen key. ...

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 to the right or left. ...

Brake fluid
WARNING   The brake fluid constantly absorbs moisture from the air; this lowers its boiling point. If the boiling point of the brake fluid is too low, vapor pockets may form in the brake ...