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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 12-04-2007, 05:48 PM   #1
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Join Date: Apr 2006
Location: South MS, USA
Posts: 115
My Ride: 2001 330i
Driveshaft center mount (bearing)

have been hearing a sound coming from under my car at low speeds when I accelerate that resembles a bad bearing. I don't hear the sound when I am "coasting" whether in gear or in neutral. I drive a 2000 328i manual transmission. I have been thinking it is the driveshaft center mount bearing that is going bad. I got under the car last night and removed a few bolts enough to see the center mount and try a visual inspection, but I was not really able to assess anything. Before I go deeper into this, is there a proper way of troubleshooting issues with the center mount bearing? My car is a high mileage vehicle, so if it was never replaced, I believe is about that time.

Also, in order to replace the driveshaft center mount, do I have to remove the entire driveshaft, or is it ok to unbolt just one end? I was thinking about unbolting the end close the transmission and work from there.
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Old 12-05-2007, 04:57 PM   #2
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Join Date: Dec 2006
Location: Central New Jersey
Posts: 1,042
My Ride: 330i ZHP
im going to say that you may need to remove the entire driveshaft or at leats the front half and let the rear half hang while you replace the bearing. But you may want to inspect you flex disc (aka guibo) before you tear into anything. They can crack and cause vibrations and noise in your drive train

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