Mercedes-Benz 2005 M-Class Operator's Manual page 139

Item
1 Thumbwheel for center air vent
2 Center air vent, adjustable
3 Defroster air vent windshield
4 Thumbwheels for side air vent
5 Side air vent, adjustable
6 Footwell air vent
7 Automatic climate control
Automatic climate control panel in the front
Controls in detail
Automatic climate control
Item
1 Air volume control
2 Defrosting
3 Air recirculation
4 Temperature control
5 Automatic control (temperature, air
distribution, air volume)
OFF
6 AC cooling on/off (AC )
Residual heat/ventilation (REST)
7 Interior temperature sensor
8 Air distribution control
9 Rear window defroster
a Rear passenger compartment venti-
lation on/off
137