Mercedes-Benz GL-Class 2007 Owners Manual - Manual (Page 218)

217
Controls in detail
Climate control
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 Thumbwheel for air volume control
for left center air vent
5 Left center air vent, adjustable
6 Right center air vent, adjustable
7 Thumbwheel for air volume control
for right center air vent
8 Thumbwheel for air volume control
for right side and door air vent
9 Right side air vent, adjustable
a Front passenger door air vent, fixed
b Climate control panel
i For draft-free ventilation, move the sliders
for center air vents and side air vents to the
middle position.