Mercedes-Benz M-Class 2012 Owners Manual - Manual (Page 127)

= Directs the airflow through the rear air vents
? Directs the airflow through the footwell vents
Notes on using climate control
The following contains notes and
recommendations on optimum operation of
dual-zone automatic climate control.
R Activate climate control using the à and
¿/Á buttons. The indicator lamps in
the à and ¿/Á buttons light up.
R Set the temperature to 72 ‡ (22 †).
R Only use the "defrosting" function briefly
until the windshield is clear again.
R Only use "air-recirculation" mode briefly,
e.g. if there are unpleasant outside odors
or when in a tunnel. The windows could
otherwise fog up as, in air-recirculation
mode, no fresh air is drawn into the vehicle.
R Use the ZONE function to adopt the
temperature settings on the driver's side
for the front-passenger side as well. The
indicator lamp in the á button goes out.
Overview of climate control systems
125
Climate
control
Z