Mercedes-Benz C-Class 2009 Owners Manual - Manual (Page 216)

Climate control system
214
Function Recommendation/Notes
5 2 AC cooling on/off i Switches on the air conditioning. The indicator lamp
in button 2 comes on.
( Y page 216)
6 T Residual heat/ventilation i With the engine turned off, it is possible to continue
to heat or ventilate the interior.
( Y page 221)
7 y Front defroster i Keep this setting selected only until the windshield
or the side windows are clear again.
( Y page 220)
8 Temperature control, passenger side i Set the temperature to 72‡ (22†). ( Y page 217)
9 ¯ Rear window defroster i At very low temperatures, rear window defroster
operation is delayed until the vehicle interior has
warmed up.
( Y page 222)
a Z Air distribution, passenger side ( Y page 219)
b Q Increasing air volume ( Y page 220)
c ß Decreasing air volume ( Y page 220)
d Display
e Z Air distribution, driver’s side ( Y page 219)
f , 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 221)
Controls in detail