Mercedes Benz 2009 M-Class User Manual

The automatic climate control is a 3-zone 
intelligent automatic climate control sys-
tem. Your vehicle interior is divided into 
3 zones.

With the help of a sun sensor, the automat-
ic climate control determines the relation 
of the sun to the vehicle and automatically 
adjusts the inside temperature for every 
individual zone.

The automatic climate control is operation-
al whenever the engine is running. It cools 
the vehicle’s interior according to the an-
gle and intensity of the sun’s rays, the out-
side temperature and the selected 
temperature. You can operate the auto-
matic climate control in either the auto-
matic or manual mode.

Nearly all dust particles, pollutants and 
odors are filtered out before outside air en-
ters the passenger compartment through 
the air distribution system.

The air conditioning will not engage (no 
cooling) if the A/C mode is deactivated 
(

컄

page 222).

G

When operating the automatic climate con-

trol, the air that enters the passenger com-

partment through the air vents can be very 

hot or very cold (depending on the set tem-

perature). This may cause burns or frostbite 

to unprotected skin in the immediate area of 

the air vents.

Always keep sufficient distance between un-

protected parts of the body and the air 

vents. If necessary, use the air distribution 

controls (

컄

page 222) to direct the air to air 

vents in the vehicle interior that are not in 

the immediate area of unprotected skin.