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Old 01-07-2013, 07:49 AM   #1
lsteg
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Wheel Hub replacement

So now that I need a new bearing for my front right tire I decided to go ahead and just replace them both. I found that Bmaparts.com has the hub assembly with bearings already pressed. In looking around I haven't found much on swapping the hubs on my 330. I was just wondering if this was a task I can tackle on a weekend or if this is just something better left for a shop to do. I got my mechanic to give me a quote and it's around 400 a hub (300 parts + 100 for labor)

I'll probably be changing out my struts as well and so I figured this would be good to pair together. Hopefully somebody can point me in the right direction.
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Old 01-07-2013, 07:59 AM   #2
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I thought people just replaced the bearing. I know the fronts are supposed to be easy while the rears are a bitch.
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Old 01-07-2013, 08:00 AM   #3
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Old 01-07-2013, 08:14 AM   #4
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Originally Posted by lsteg View Post
So now that I need a new bearing for my front right tire I decided to go ahead and just replace them both. I found that Bmaparts.com has the hub assembly with bearings already pressed. In looking around I haven't found much on swapping the hubs on my 330. I was just wondering if this was a task I can tackle on a weekend or if this is just something better left for a shop to do. I got my mechanic to give me a quote and it's around 400 a hub (300 parts + 100 for labor)

I'll probably be changing out my struts as well and so I figured this would be good to pair together. Hopefully somebody can point me in the right direction.
These bearings are a press fit into the hub assembly and that takes a great deal more force than you could generate at home or in your average garage. May even be a shrink fit. It would need a fly press at least. Far as I know this is the only way you can buy the bearings ie: complete with the hub assembly.

Last edited by RayPooley; 01-07-2013 at 08:26 AM.
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Old 01-07-2013, 08:19 AM   #5
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These bearings are a press fit into the hub assembly and that takes a great deal more force than you could generate at home or in your average garage. May even be a shrink fit. It would need a fly press at least. Far as I know this is the only way you can buy the bearings ie: complete with the hub assembly.
I wouldn't be pressing them in myself as they already come pressed in to the Hub assembly. I would just be installing the new Hub.
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Old 01-07-2013, 08:20 AM   #6
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I wouldn't be pressing them in myself as they already come pressed in to the Hub assembly. I would just be installing the new Hub.
Link?
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Old 01-07-2013, 08:29 AM   #7
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I wouldn't be pressing them in myself as they already come pressed in to the Hub assembly. I would just be installing the new Hub.
Beg pardon. I thought you were asking if you could just buy the bearings. Must have attributed WDE's comment to you.
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Old 01-07-2013, 08:47 AM   #8
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These front bearings are an integral part of the hub. No need to "press" them in.
So, you can not buy just the bearings or hub separately. Meaning once the hub is removed the bearings basically are damaged/destroyed.

The hub/bearings replacement is something you can DIY. Only major tool you'll need (have access to) are:
-Torque wrench that can go up to ~220 ft.lb.
-46mm socket


If you need further information, reference - "BMW wheel hub bearing" videos on my YT channel below.

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Old 01-07-2013, 08:48 AM   #9
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I thought people just replaced the bearing. I know the fronts are supposed to be easy while the rears are a bitch.
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Originally Posted by RayPooley View Post
Beg pardon. I thought you were asking if you could just buy the bearings. Must have attributed WDE's comment to you.
I just read around a bit. People are calling it a bearing replacement, but they are really replacing the whole hub assembly. Anyway, the fronts are easy, as shown in the DIY already posted.

Last edited by WDE46; 01-07-2013 at 08:48 AM.
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Old 01-07-2013, 08:48 AM   #10
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Thanks for the thread. Not sure how I couldn't find it.
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Old 01-07-2013, 08:59 AM   #11
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Link?
bmaparts
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Old 01-07-2013, 09:13 AM   #12
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Just saw that the manufacturer of the bearing was SKF. Any ideal on quality of their parts?
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Old 01-07-2013, 09:25 AM   #13
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Old 01-07-2013, 09:34 AM   #14
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will there be any issues with the wheel speed sensor after replacing the Hub?
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Old 01-07-2013, 10:23 AM   #15
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Shouldn't be affected. But there's no better time to clean your sensor than now. Sometimes they fail because they get too much grit and grime on them, which I can only assume creates electromagnetic interference if enough metal particles get picked up in the grime. Comes right out with a hex key, and you can wipe it off with a damp cloth.
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Old 01-07-2013, 10:29 AM   #16
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Shouldn't be affected. But there's no better time to clean your sensor than now. Sometimes they fail because they get too much grit and grime on them, which I can only assume creates electromagnetic interference if enough metal particles get picked up in the grime. Comes right out with a hex key, and you can wipe it off with a damp cloth.
Thanks Zell. Always nice to find easy things to change/check while you have all of that stuff off.

I think I'm going to buy the hub/bearing assembly from bavauto (part number WBK E36 SKF ) for $239.00. The bearing is SKF and they come witha new nut and dust cover. The only question I have is the part number says E36. Are the Hub Assemblies the same for the E36 and the E46?
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Old 01-07-2013, 10:33 AM   #17
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so 2004 bmw's dont come with a diff?
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Old 01-07-2013, 10:38 AM   #18
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Here's a video showing how to do it. There's 2 videos total. Not the best visual video but you can see most stuff.

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Old 01-07-2013, 10:39 AM   #19
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wealth of knowledge in my "Wa wa wa" thread. Search and read the entire thing. Also info on SKF bearings and F.A.G. bearings in that thread.
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Old 01-07-2013, 10:40 AM   #20
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Make sure you get the associated parts. Dust shields and caps. two per side. fronts are a cakewalk..

rears... you don't even want to know.
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