Yesterday I observed a later model (1987-90??) diesel wagon
with a vent grill on the passenger fender next to the signal light edge. Five slats made up the contoured vent.
Is this common? What is it for?
I have never noticed this.

Den

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1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
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1979 240D 140Kmiles (bought for parents) *SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD