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Old 03-22-2010, 10:31 AM   #1
schulmann
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Join Date: Sep 2007
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How long last front bearing on a 330 ?

I was going to replace a couple of parts around my front suspension on my 330ci and was wondering how long lasts the front bearing ?

Is it something that fails on regular basis ?
I didn't hear as such ...
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Old 03-22-2010, 12:20 PM   #2
mrshelley
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The front wheel bearing is probably the one item on a BMW that goes on forever. I change mine out each season and my car logs plenty of hours on it during the season. One thing you don't want to do, loctite the big nut on it. If you do, you'll need a torch to get it off. Just buy a new nut and put a new dimple in it.
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Old 03-22-2010, 12:24 PM   #3
teamdfl
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Front bearing life is usually in the 50k to 150k mile range. Typical life is in the 100k to 125k mile range. I spin the bare hub (free of the brake rotor) when changing rotors to get a feel for the bearing. You can hear and feel the difference as the hub nears the end of its useful life. It feels a little loose almost as if the grease is gone. When the hub is bad enough, it can feel gritty until the point at which it starts to drag.
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Old 03-22-2010, 01:22 PM   #4
BimmerBrakes
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It varies due to Rim and Tire Setup

-Anthony@BimmerBrakes
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Old 03-22-2010, 01:25 PM   #5
n2Bimmer
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Originally Posted by mrshelley View Post
The front wheel bearing is probably the one item on a BMW that goes on forever. I change mine out each season and my car logs plenty of hours on it during the season. One thing you don't want to do, loctite the big nut on it. If you do, you'll need a torch to get it off. Just buy a new nut and put a new dimple in it.

Actually not even a torch will get it off. I tried mine, Heated it for over a few minutes and it was stuck. Then i used the long handle on my jack to connect it to my breaker bar, The handle is about 3 feet long. It worked and i got it off. lol.
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Old 03-22-2010, 07:08 PM   #6
330I6SPD
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This should be stickied at the top of the mods section! Sorry for the threadjack.
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Old 03-22-2010, 07:44 PM   #7
mrshelley
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I used a 4 foot pipe attached to a 3/4" drive breaker bar and it just bent the breaker bar.
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Old 03-22-2010, 07:51 PM   #8
Many330i
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What about rear bearings - how long do they last?
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Old 03-25-2010, 08:13 AM   #9
teamdfl
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What about rear bearings - how long do they last?
In my experience, BMW rear bearings traditionally last about 50% longer than fronts. Of course, there are exceptions and modern BMWs may be loading up bearings differently. A friend's E46 needed a rear bearing at 100k and is now at almost 200k miles on the original fronts.
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