My 1980 300SD Wipers do not stop, tried controller in combo switch, it's ok.

The biggest frustration is: Where in the h... is the wiper relay? MB doesn't know or have diagram. I think the problem is here.

If you have a clue on what is up here and especially where the wiper relay is, please reply a.s.a.p.

It's raining here.

Thanks

Robert Mullins
rambob