Mercedes-Benz 300 E 1990 Owner's Manual page 28

^ Defrost
26
^ Defrost
The maximum amount of heated air is directed to
the windshield and adjustable air outlets (8) in­
dependent of the positions of the temperature
selector wheel and fan control buttons.
a
o ff
The air supply and heat to the car interior is shut
off. While driving, use this setting only temporarily.