I just replaced the fan clutch on my '96 E300D because the old one was just free-wheeling all the time and it kept spinning for quite a while after shutting off the engine. I noticed the new one is a lot stiffer and now I can definitely hear the fan roar when accelerating. And when turning off the engine the fan stops spinning immediately as I believe it should. What I'm puzzled about is the stiffness of the fan that doesn't seem to change with temperature. With the engine cold (and off of course) the fan exhibits the same moderate resistance to rotation as it does with the engine hot (90-100C). Is this proper or did I get a defective clutch? I was expecting the fan to be a lot looser when cold and a lot stiffer when hot.

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2004 VW Jetta TDI (manual)

Past MB's: '96 E300D, '83 240D, '82 300D, '87 300D, '87 420SEL