Originally Posted by lsmalley

I agree. I had the w124 fan on my 201, which has the 9 wide blades vs the 11 thin blades. However, in this case, it's not the fan that is triggering the cut in time at 95C it's the metal strip. So all that needs to be done is a simple swap of the bimetallic strip to have the viscous fan cut on at 82C vs 95C. But again, having the fan cut on at 82C means nothing unless the thermostat is also opening up sooner than the 87C. Otherwise he will just create extra drag on the engine for nothing. Even with the lower temp thermostat, if he is on the highway, the air moving through the radiator at speed would keep his temps low without modding the viscous fan, which I think was his original concern - doing highway speeds and having the temp creep up.