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  #1  
Old 11-01-2002, 01:16 PM
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W124 rear hub removal - has anyone done this?

Hello,

I am trying to find out how hard it is to removed the rear wheel hub from the carrier on a W124. The factory manual specifies all kinds of fancy pullers and widgets. The Haynes 124 manual says after removing the driveshaft nut, it should tap off, and if not, then a puller may be required. A call to a friend at the dealers says these are a real b*tch and all the techs in the shop hate this job (prerequisite to a wheel bearing replacement.) That doesn't sound good.

Has anyone actually done this? Any feedback on the difficulty level, and if a homemade puller can be easily fabricated, if necessary at all?


Thanks!
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  #2  
Old 11-01-2002, 03:29 PM
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IF you do remove the hub YOU must replace the wheel bearing as removal of the hub DESTROYS the bearing.
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Old 11-01-2002, 03:54 PM
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OK - no problem! But how hard is it to get the hub off in the first place?
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Dave M.
Boise, ID

1997 E420 - 153kmi (Bugeyes)
1994 E420 - 140kmi (Blondie)
1993 500E - 193kmi (Lollipop)
1992 400E - 186kmi (Stinky Dirty)
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  #4  
Old 11-01-2002, 06:44 PM
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Scale of 1(easy) to 10, about 9.5 without the correct puller.
Without that tool you will need to remove the COMPLETE hub & have the flange pressed from the bearing. & then the bearing pressed out & then a new one back in. ON installing the flange back into the bearing the inner race MUST be supported or the new bearing will be destroyed as well.
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  #5  
Old 11-01-2002, 08:10 PM
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A BMW Tech told me to use an Airhammer

Which I did. Reverse the nut to the end of the spindle but leave it on and make sure it completely covers the threads. I think i used a modified jig(the "ball end" of a 3\8 CRAFTSMAN ratchet held againts the end on the spindle while applying pressure via the air hammer) to also aide in preventing damage to the threads. Be very VERY careful, .....F- Up those threads and you're screwed. Find a machine shop and have the new bearings pressed in. While their off you might as well replace the 'notorious" linkage(One of the 5 rear links is notorious for needing to be replaced ~100K mi...)
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  #6  
Old 11-01-2002, 11:53 PM
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Definitely not a DIY job! Even with the correct pulling and press-in tools, this job is no picnic. I've done it only about a half dozen times over the years and it was never easy. Let me guess, R/R wheel bearing? The next time I have to do this job I'll remove the carrier assembly ( pretty simple ) and do the hard part at the press. So much for the Haynes manual.
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