Mercedes-Benz M-Class 2010 Owners Manual - Manual (Page 184)

was set before the front defroster was
switched on.
The indicator lamp in button ¦ goes out.
The indicator lamp in button Á comes
on.
or
X Turn temperature control : and/or C
(USA only) (
Y page 173) or : and/or E
(Canada only) ( Y page 175) slightly in any
direction.
Heating switches to the temperature that
was set before the front defroster was
switched on.
The indicator lamp in button ¦ goes out.
The indicator lamp in button Á comes
on.
i The air conditioning compressor remains
on even if the indicator lamp in button
¦ goes out. This helps to prevent the
windshield from fogging.
Deactivating
X Press button ¦ once more.
The indicator lamp in the button goes out.
Defrosting is turned off.
The previous settings are once again in
effect. The air conditioning compressor
remains switched on.
i To deactivate, you can also press button
^ or Ã.
Windshield fogged on the outside
X Switch the windshield wipers on
(
Y page 98).
X Press button Ã.
The indicator lamp in the button goes out.
Air volume and air distribution are
controlled separately for each zone.
If the automatic air volume and air
distribution are switched off:
X Press buttons O/c 19 and P/
\ 19 .
Air recirculation mode
Switch to air recirculation mode to prevent
unpleasant odors from entering the vehicle
from the outside (e.
g. before driving through
a tunnel). This setting cuts off the intake of
outside air and recirculates the air in the
passenger compartment.
G Warning!
Fogged windows impair visibility,
endangering you and others. If the windows
begin to fog on the inside, switching off the
air recirculation mode immediately should
clear interior window fogging. If interior
window fogging persists, make sure the air
conditioning is activated, or press button
¦.
X Activating: Press button d.
The indicator lamp in the button comes on.
i The air recirculation mode is activated
automatically at high outside
temperatures.
The indicator lamp in button d is not lit
when the air recirculation mode is switched
on automatically.
A quantity of outside air is added after
approximately 30 minutes.
If you have turned off the air conditioning
or the outside temperature is below 41‡
(5†), the air recirculation mode will not
switch on automatically.
X Deactivating: Press button d.
The indicator lamp in the button goes out.
19 Canada only
182
3-zone automatic climate control
Controls in detail
164_AKB; 7; 31, en-US
d2ureepe,
Version: 2.11.8.1
2009-09-11T12:07:36+02:00 - Seite 182