. . . whatever else is on that fuse. In the '86 420SEL, I had the same problem, and it turned out to be the vacuum pump for the door locks. It was dead and was shorting out the fuse. I had to disconnect the pump and do without vacuum locks for a while, until I could get a used pump that worked.

__________________
* *
-- Paul W. (The Benzadmiral)
('03 Buick Park Avenue, charcoal/cream)
Formerly:
'97 C230, smoke silver/parchment; '86 420SEL, anthracite/light grey; '84 280CE (W123), dark blue/palomino