Mercedes-Benz 2010 M-Class Operator's Manual page 183

Symbol Symbol
Driver's Passenger
side side
Z M
\ P
c O
X
Press the desired air distribution button
Z, \, or c for the driver's side,
or M, P, or O for the passenger
side.
The automatic mode is switched off. The
indicator lamp in the desired button comes
on.
Adjusting air volume
USA only
X
Decrease/increase: Press button I or
K.
The automatic mode is switched off. The
selected blower speed is shown in air
volume display G (
Canada only
X
Decrease/increase: Press button I or
K.
The automatic mode is switched off. The
selected blower speed appears in display
J ( Y page 175).
Function
Directs air to
the windshield
and side air
vents
Directs air
through the
center, side
and rear
passenger
compartment
air vents
Directs air to
the footwells
and side air
vents
Y page 173).
3-zone automatic climate control
When using the Voice Control System, the
blower speed reduces automatically. When
the Voice Control System is not used
anymore, the blower speed increases to the
previously selected level.
Front defroster
You can use this setting to defrost the
windshield, for example if it is iced up.
You can also defog the windshield and the
side windows.
i Keep this setting selected only until the
windshield or the side windows are clear
again.
Activating
X
Press button ¦.
The indicator lamp in the button comes on.
The climate control switches to the
following functions automatically:
most efficient blower speed and heating
R
power, depending on outside
temperature
air flows onto the windshield and the
R
front door windows (side air vents must
be open)
the air conditioning compressor
R
switches on at outside temperatures
above approximately 41‡ (5†) for air-
drying
Adjustments
You can adjust the air volume and the
temperature when the front defroster is
switched on. The air flow will remain on the
windshield and front door windows.
X
Press button I to decrease or button
K to increase air volume to the desired
level.
The air volume decreases/increases to the
next lower/higher blower speed and
heating switches to the temperature that
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