Mercedes-Benz SL 2008 Owner's Manual page 148

Overview of air-conditioning system functions
Automatic air conditioning
Function
1 Display for air distribution, left
2 y Demists the windscreen
Recommendation/Notes
i
Only use the "demisting" function until the wind-
screen is clear again.
Controls
Air conditioning
( page 150)
Y
( page 151)
Y
Z
145