Mercedes-Benz CLK-Class 2009 Owners Manual - Manual (Page 182)

Climate control system
180
Function Recommendation/Notes
5 ) Rear window defroster i At very low temperatures, rear window defroster
operation is delayed until the vehicle interior has
warmed up.
( Y page 187)
6 2 AC cooling on/off i Switches on the air conditioning. The indicator lamp
in button 2 comes on.
( Y page 184)
7 U Air distribution and air volume (automatic mode) ( Y page 185)
8 , 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 188)
9 P Front defroster i Keep this setting selected only until the windshield
or the side windows are clear again.
( Y page 187)
Controls in detail