Trying to locate fuse boxes in 190E 1992 . Any one Know ?

Probably on driver's side in engine compartment, close to the firewall.

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1988 California version 260E (W124)
Anthracite Grey/Palomino
Owned since new and still going strong and smooth
MBCA member

Past Mercedes-Benz:
1986 190E Baby Benz
1967 230 Inherited from mom when she downsized
1959 220S Introduced me to the joys of keepin' 'em goin'

There are only 10 kinds of people in the world--those who understand binary and those who don't

Or are you buying a replacement?

There's one major fuse box in the W201, under the hood/bonnet, approximately where the windshield meets the bodywork.