Bearing replacement without new hub - Mercedes-Benz Forum
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post #1 of 21 (permalink) Old 03-12-2012, 12:31 PM Thread Starter
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Question Bearing replacement without new hub

After 120K miles my e350 needs new bearings, after reading some posts and checking WIS it seemed like the hole wheel hub had to be replaced to the tune of 260 DLLS per side.
Mercedes w211 w219 w230 OEM Front Wheel Hub + Bearings GENUINE on eBay!
I was reluctantly ready to purchase the hubs but when I googled the part number 230 330 03 25 a meyle bearing kit came up
IMC 230 330 03 25 MY Front Wheel Bearing | eBay
It seems like these would work (60 DLLS per side) but since it’s a perfect fit or no fit kind of thing I have to ask.
Has anyone used them before? Is the fit good? Does the seal include the magnets?
Also how tight is the OEM race fit? is a hydraulic press needed to install/remove?

TIA

Last edited by VII7; 03-12-2012 at 02:54 PM.
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post #2 of 21 (permalink) Old 03-12-2012, 05:37 PM
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I recently replaced a bad outer bearing only I very gently hammered the race out with a brass punch and it came right out. I kept the replacement race in the freezer for a couple of hours and it went in very easily. Hammered it in with the old race. The hubs are not made to replace the bearings but the race has a small edge visible which makes it possible to remove it without damaging the hub. I'm not sure about the inner but I suspect that it would come right out just as easily.

The centric kit might be a bit pricey at $60. The outer bearing was just $7.00 and the seal is just a few dollars. The inner bearing can't be more than $10 or so. Adjusting the bearing is a little tricky but with a good dial gauge I was able to get it right on the money. If your bearings are not discolored or damaged they are probably still good after 120,000 miles. OEM is SKF which is good quality. Magnets are in the seal. You really can't see them.

Last edited by Pete '06 E320 CDI; 03-12-2012 at 05:47 PM.
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post #3 of 21 (permalink) Old 03-12-2012, 07:05 PM Thread Starter
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Thumbs up

Good to know the races can be replaced easily, was worried I would have to sneak into work with the part and convience the maintenance guys to lend me the press.
I was going with the set hoping it would be a perfect match with seal included but I'm always open for options, specially quality-cheaper options.
I know you can't see the magnets and that is what makes it very hard to know if they are the right ones. EDIT: Seal is available as spare with part number 025 997 16 47
What bearings did you get? Was it a good fit?
Bearings are not that bad but they have overheated and undergone extra wear and since the car undergoes 130MPH for 1:30 hrs every other weekend I doubt they will make it another 10K.

Thnx for the info, I really appreciate it!

Last edited by VII7; 03-12-2012 at 07:29 PM.
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post #4 of 21 (permalink) Old 03-13-2012, 12:44 AM
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I assume the 130+ takes place in Reynosa!
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post #5 of 21 (permalink) Old 03-13-2012, 05:55 AM Thread Starter
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Well not in Reynosa precisely as driving in that city is more like an obstacle course but certainly I never go past 75 in the US.
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post #6 of 21 (permalink) Old 03-13-2012, 07:51 AM
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On the 2006 E320 cdi the outer tapered roller bearing for the front wheel hub is the following:
SKF BR12 which contains both the bearing and race. Bearing p/n is LM12749 and Race p/n is LM12710. This is a common part and is not hard to find. Make sure you get the right one. SKF has a good website and you should be able to find the right parts. You can also find the inner bearing in their catalog. I'm not sure if this fits the E350 so I would recommend that you double check. Good luck.
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post #7 of 21 (permalink) Old 03-13-2012, 07:58 AM Thread Starter
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Building shopping list

Thanks Pete! It seems OEM outside bearing is http://www.amazon.com/SKF-BR12-Tapered-Roller-Bearings/dp/B000CKNY4W it is listed on a few websites as compatible and I dont think the they changed it for the CDI as the rest of the suspension/wheel parts are the same.
I'm still having trouble finding the inside bearing, anyone know OEM #?
Rockauto shows inside bearing as National 32008XQ but that does not inspire much confidence.
I read that inside fit is somewhat delicate since a small difference will lead to ABS/ESP errors

Last edited by VII7; 03-13-2012 at 08:16 AM.
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post #8 of 21 (permalink) Old 03-13-2012, 10:03 AM
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SKF Online Parts Catalog

The inside bearing is only listed for the E350 from 2006 on.

The outside bearing has been the same one used since the 90's so it should be ok.

The seal part number matches what I used.

Make sure you order the right parts. I am telling you what worked for me. You are ultimately on your own.

Last edited by Pete '06 E320 CDI; 03-13-2012 at 10:09 AM.
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post #9 of 21 (permalink) Old 03-13-2012, 06:28 PM Thread Starter
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Thanks again Pete!

Shopping list is complete, will attempt to purschase:
Outer bearing = SKF BR12
Inner bearing = SKF 32008XQVB458
Seals = SKF 20865
Grease = Mobil 1 Synthetic Grease
Could buy seals and grease from the dealer but I'm very unhappy with them after my last visit so I'm trying to deny them any futher access to my wallet. (Yes I know I'll have to return sooner or later...)
Will update about fit and pricing later...
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post #10 of 21 (permalink) Old 03-13-2012, 07:53 PM
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Grease is grease, but the fine people at Mercedes Benz recommend the following: NLGI grade 2, Specification 265.1.

The Mobil One synthetic grease is great stuff. It is red in color and the MB grease is green.

I hope you have the service manual. It tells you how much grease to use and the right procedure for tightening the axle nut.
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