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Old 10-02-2012, 09:31 AM   #41
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Join Date: Sep 2012
Location: Old Greg's Cavern
Posts: 12,646
My Ride: '13 128i, '04 330Ci
Originally Posted by yo_marc View Post

What exactly are people doing in their cars when the fans explode?

Is the fan clutch engaged? What RPM's?

I find it hard to believe these things just let go and cause this kind of damage.
Like Alex said, it's probably caused by another part going bad and sending some sort of shock to the fan. Engine mounts allowing excessive play, pulleys seizing or breaking, water pump seizing, bearing wear, etc. There is no way the fan just explodes if it has nto been hit off axis in some manner.

Last edited by WDE46; 10-02-2012 at 09:32 AM.
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