Arthur, Steve, i have found both the switch and the resistor you and SB talked about. the resistor on my 202 is located infront of the condenser, around the middle of the grille and the swith is located on top of the dryer which is situated behind the left (passenger side on a right hand drive car) headlamp.

--my engine code is M111 i think its the same as the C220, since my friend's c230 Kompressor also has the same engine designation. the only difference is that mine uses a manifold pressure sensor rather than a hot-wire MAF.--

what do i need to do next?
How can i check the condition of the switch and the resistor?
i havent go to my mechanic yet but as far as i can see, the cables that run into the big resistor are fine , nothing burnt or broken.

one other thing, i think the efficiency of my radiator is dropping (either that or the global warming has really effecting the climate of my town) , basically, the merc runs hotter than it normally does, can you give me an info on how to properly flush the radiator, and then bleed the system out of trapped air afterwards in the 202 chassis?

I really appreciate the effort that you guys have put in answering this thread, i imagine u guys must be very busy yet you still squeeze time to help me out, really do appreciate it, thx again guys.

ps: if you guys wouldn't mind to give me your postal address, i would gladly send you some rather exotic souvenir from Indonesia.

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w202 c200 malachite green
w115 200 green