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.
See also:
Windows fogged up on the outside
Switch on the windshield wipers.
Press the button repeatedly
until the or
symbol appears in the display.
You should only select this setting until the windshield is clear again. ...
Mercedes-Benz M-Class Owners Manual
...
Sidewall
The part of the tire between the tread and the
bead. ...