Mercedes-Benz 350 SDL Owner's Manual page 25

£ 3 Bi-Level ventilation - Heating
This setting is used if the inside of the windshield begins
to fog up, ice up or when wet snow is falling. As soon as
the windshield has cleared, reset to g or g | .
In the heating mode, warm air is supplied to the wind­
shield, foot area, air outlets (8) and (9), and to the ducts
in the front doors. Additionally, air may be emitted per­
iodically from outlets (7), depending on the interior tem­
perature.
In the cooling mode, cool air is supplied to the wind­
shield, foot area, front door ducts, and air outlets (7), (8)
and (9).
Note:
In warm, humid climates, prolonged use of this setting
may create condensation on the outside of the wind­
shield, directly above the defroster ducts.
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