Mercedes-Benz M-Class 2009 Owners Manual - Manual (Page 195)

3-zone automatic climate control
193
Function Recommendation/Notes
a Y Air distribution (directs air through the footwells
and side air vents) ( Y page 201)
b Air volume display
c · Decreasing air volume ( Y page 202)
d 1 Rear window defroster i At very low temperatures, rear window defroster
operation is delayed until the vehicle interior has
warmed up.
( Y page 204)
e : Air recirculation i Only use this function for a short time, e.g. in a tunnel.
Otherwise, the windows can fog up due to lack of fresh
air.
( Y page 203)
f Interior temperature sensor
g ´ Climate control on/off i Switches on the climate control system. The indicator
lamp in button ´ goes out.
( Y page 198)
Controls in detail
Z