Mercedes-Benz 300 TE 124 T 1988 Owner's Manual page 28

D e fro s t
The m axim um a m o u n t o f he ated air is d ire c te d to the
w in d s h ie ld and a d ju s ta b le air o u tle ts (8) in d e p e n d e n t o f
th e p o s itio n s o f th e te m p e ra tu re s e le c to r and fan c o n tro l
b u tto n s .
0 ° «
The fre s h air s u p p ly to th e c a r in te rio r is s h u t off. W hile
driving , use th is s e ttin g only te m p o ra rily.
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