Ok, so I went to Fletcher Jones, a large local MB dealership to buy a new 30 amp metal strip fuse and aslo check their prices and check their return policy on a few potential culprits of my blower failure; a new ignition switch, a new fan blower, and a new a/c relay.
The strip fuse that 'looked ' perfectly fine ( not only to me but to a few more knowledgeable fellow MB enthusiasts at the Encinitas MB GTG, and again in my garage when I rechecked it) was the culprit. Replacing it got the a/c working right up............!!!!!!
Funny thing is that when I drove up, a few techs and dealer employees at Fletcher Jones ( they were probably getting off work, +/- 6pm) started to mill around my car, checking it out and those that knew started telling those unaware what they knew about the car. I was at that point a very proud owner plus already very happy that it was a blown fuse and nothing else. I left Fletcher Jones with a great impression cos on top of the free strip fuse and install, I also got a 3rd brake light bulb, also on the house. Not that these were expensive or anything, but these were good gestures
Thanks all for the advice, for getting me started as to where I should be looking.........!!!
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Vince

'94 E500 2 piece SL rims, chip, K&N Filter, HR Springs. Mesa Valve "Y" Pipe, ASR Defeat, BW NOS, S600 Grille, SL600 300mm rear brakes