found the problem
Thanks to the search engine on ShopForum, I located a string explaining to check out the little black box mounted on the drivers side fender under the hood, behind the ABS. Under the flip open lid, is a 10amp blade fuse. The fuse was an origional and cracked in the middle. Until we can get to the right store that handles this fuse, I manufactured one out of some solder. The fan motor checked out good and all is well.
I can tell you we saved hundreds of dollars of dianostics at any shop by reading 15 minutes of strings I serched for on Mercedesshop.com. GREAT WEB SITE!!!
1987 420SEL, 180k strong Blu & Grey
2004 Road King Custom