Mercedes-Benz GL-Class 2009 Owners Manual - Manual (Page 214)

3-zone automatic climate control
212
Function Recommendation/Notes
a Y Air distribution (directs air through the footwells
and side air vents) ( Y page 220)
b Air volume display
c · Decreasing air volume ( Y page 221)
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 223)
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 222)
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 217)
Controls in detail