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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Mon, Apr-05-2010, 02:48:01 PM   #1
Surk///M
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Default Front whl bearing hub nut size

My RF front wheel bearing is starting to hum..so time to change soon--What size is the front hub nut socket .. is this a DIY if I have the proper torque wrench and is 214ft\Ibs correct torque??
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Old Mon, Apr-05-2010, 03:47:28 PM   #2
APIindy
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You will need a 46mm socket to remove the nut. I think there are DIY instructions on e46fanatics. It is very straight forward.

Here is a video on how to do it. http://www.youtube.com/watch?v=OU2xS...eature=related

If you have any issues, PM me and I can help you out.
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Old Mon, Apr-05-2010, 04:54:15 PM   #3
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I'm getting conflicting info on the size..some say 36mm others 46mm..need to know what socket size I'll need as I have access to a shop-hoist-impact etc..
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Old Sun, May-15-2011, 03:52:39 PM   #4
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Default Re: Front whl bearing hub nut size

i would like to know too .. keep seeing conflict information .. anyone? 36mm or 46mm??
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Old Sun, May-15-2011, 04:16:55 PM   #5
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Default Re: Front whl bearing hub nut size

It's definitely 46mm

Oh, and I highly recommend a jaw puller. The inner race WILL stick onto the shaft as shown in that video.

The video is correct in that you should NOT push the new hub on by the outside hub. This will ruin your new hub bearing because it will knock out the inner race as you push it on. You essentially want to push the new hub on using the inner bearing-race as your point of impact.

The video suggest using a bearing push tool. You can simply use the old inner race that you used the jaw puller on matched with your 46mm socket and bang it on.
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Old Sun, May-15-2011, 05:45:20 PM   #6
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Default Re: Front whl bearing hub nut size

I just ordered a new front wheel bearing as well since mine is completely shot. I've seen some say to replace both fronts at the same time, is this the case or should I just wait until the other side goes to replace it? (2003 80k miles)

And check out e46fanatics for a very good DIY as well.
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Old Sun, May-15-2011, 05:50:18 PM   #7
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Default Re: Front whl bearing hub nut size

Quote:
Originally Posted by kidrobot View Post
It's definitely 46mm

Oh, and I highly recommend a jaw puller. The inner race WILL stick onto the shaft as shown in that video.

The video is correct in that you should NOT push the new hub on by the outside hub. This will ruin your new hub bearing because it will knock out the inner race as you push it on. You essentially want to push the new hub on using the inner bearing-race as your point of impact.

The video suggest using a bearing push tool. You can simply use the old inner race that you used the jaw puller on matched with your 46mm socket and bang it on.
thanks for the great info and confirmation ..

planning to do a DIY on the bearing soon too .. pocket is going empty soon .. sigh ..
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Discussing Front whl bearing hub nut size in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)