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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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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: 12,609
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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Old 10-02-2012, 09:59 AM   #42
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Join Date: Oct 2005
Location: Canada
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My Ride: 04 330ci 6spd
God i thought stuff like this would be a thing of the past after moving away from an e36

Sent from my GT-I9100M using Bimmer App
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Old 10-02-2012, 09:59 AM   #43
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My Ride: 325 '01
good thing i did this to my car. same thing basically happened to me and i overheated twice!!!

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Old 10-07-2012, 06:33 PM   #44
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Join Date: Nov 2008
Location: Tallahassee, FLorida
Posts: 22
My Ride: 330ci
FYI, once I removed the radiator I was amazed to see so much trash collected between the radiator and condenser.

I decided to replace the OEM BMW water pump with a Bosch water pump that has the metal impeller. In addition, all other parts are Genuine BMW oem parts. I replace the following:
Expansion Tank
Mounting Plate
Fan Clutch
Fan Blade
Fan Shroud
Transmission Oil Cooler

4 Liters of Transmission Fluid Valvoline Maxlife
3.78 Liters Antifreeze Coolant G05

Items that still need to be replaced or repaired:
Damage done to the hood "several dents and chip paint"
Damage underhood insulation fire pad
Damage Belly Pan/Splash Pan
Damage Left and Right Brake Air Duct to support the belly pan.

I will go with the electric fan in the near future. I have driven the car over 700+ miles so far
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