Mercedes-Benz M-Class 2009 Owners Manual - Manual (Page 186)

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