Mercedes-Benz 2008 M-Class Operator's Manual page 206

1 Driver's door air vent, fixed
2 Left side air vent, adjustable
3 Thumbwheel for air volume control
for left side and door air vent
4 Windshield air vents
5 Thumbwheel for air volume control
for left center air vent
6 Left center air vent, adjustable
7 Right center air vent, adjustable
8 Thumbwheel for air volume control
for right center air vent
9 Thumbwheel for air volume control
for right side and door air vent
a Right side air vent, adjustable
b Front passenger door air vent, fixed
c Climate control panel
d Footwell air vents
i
For draft-free ventilation, move the sliders
for center air vents and side air vents to the
middle position.
Controls in detail
Climate control
205