Mercedes-Benz 2009 M-Class Operator's Manual page 186

Controls in detail
Climate control
Function
| Front defroster
3
Q Increasing air volume
4
{ Air distribution (directs air through the windshield
5
and side air vents)
9 AC cooling on/off
6
9 Residual heat/ventilation
Temperature control, passenger side
7
: Rear climate control on/off or air supply for rear
8
passenger compartment on/off (USA only)
< Rear climate control on/off or air supply for rear
passenger compartment on/off (Canada only)
a Air distribution (directs air through center and side
9
air vents)
Y Air distribution (directs air through the footwells
a
and side air vents)
184
Recommendation/Notes
i Keep this setting selected only until the windshield or
the side windows are clear again.
i Switches on the air conditioning. The indicator lamp
in button 9 comes on.
i With the engine turned off, it is possible to continue
to heat or ventilate the interior.
i Set the temperature to 72‡ (22†).
( Y page 188)
( Y page 188)
( Y page 188)
( Y page 187)
Y
( page 190)
( Y page 188)
( Y page 188)
( Y page 188)