installed new wheel bearings, something is not right though.
Thread Starter
Super Member
Joined: Oct 2013
Posts: 506
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From: Texas
06cls
installed new wheel bearings, something is not right though.
so just got done installing my new wheel bearing in the front left wheel. was able to get both inner and out races out and new races pressed in, packed the bearings full of grease as well as the inside of the hub. re installed everything and tightened up the locking nut enough so that i could just spin the rotor back and forth a few times.
I then backed the nut off, hand tightened, then backed off a tiny bit more and finally tightened the lock nut 5mm allen. re installed wheel, went for a drive and immediately can tell something is not right, the wheel is humming like crazy. turned back around and put the car back on the lift, everything feels fine and will take it apart later.
Any ideas of whats going on? 99% sure bearings are installed correctly, outer race facing inner race so the bearing go in like this l> <l.
this is the method i used, only thing i did differently is tightened up the nut to make sure the wheel bears were all seated all teh way then backed off till loose.
I then backed the nut off, hand tightened, then backed off a tiny bit more and finally tightened the lock nut 5mm allen. re installed wheel, went for a drive and immediately can tell something is not right, the wheel is humming like crazy. turned back around and put the car back on the lift, everything feels fine and will take it apart later.
Any ideas of whats going on? 99% sure bearings are installed correctly, outer race facing inner race so the bearing go in like this l> <l.
this is the method i used, only thing i did differently is tightened up the nut to make sure the wheel bears were all seated all teh way then backed off till loose.
Last edited by 06cls55amg; Mar 20, 2014 at 04:56 PM.
Senior Member
Joined: Nov 2012
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From: Houston, TX
2006 E55
what prompted the bearing change? was there excessive play or scoring on the old races? Did it make the same humming noise? Are you sure the tire is not badly feathered and contributing to the noise?
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2003 W211 E55, 2003 W220 S600
when the bearings go bad you will have excessive lateral play on the wheel and eventually you will get a ESP error (DAS will say speed sensor is faulty)
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07 E63 + 07 CLK63CAB
From you description on the way you tightened the wheel bearing nut, you have not a clue on how it is done.
Besides you should pack the wheel bearings a specific way and not fill the hub also, ask a mechanic just where you went wrong,
Using a brass punch to seat the races is a proper method not tightening the wheel nut to make sure they are seated, depending on how much force you applied could have actually marked the races or broke a roller.
Besides you should pack the wheel bearings a specific way and not fill the hub also, ask a mechanic just where you went wrong,
Using a brass punch to seat the races is a proper method not tightening the wheel nut to make sure they are seated, depending on how much force you applied could have actually marked the races or broke a roller.
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From: Canada
07 E63 + 07 CLK63CAB
Ha ha 30 seconds of the you tube video explains a lot, the "tech" is using a wood chisel and a claw hammer to work on the benz, my eyes are hurting, can not watch any more BS
Thread Starter
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Joined: Oct 2013
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From: Texas
06cls
i changed wheel bearing due to excessive humming when cornering as well as humming when driving. when i repacked the bearings last week the humming went away for a day or two, then hum came back.
my old bearings did not have any discoloration. races have a few scratches, but thats it. my tires due have excessive wear on the insides, and centers have about 80% tread left. wanted to tend to all the suspension components before i get an alignment done and put summer wheels on.
my old bearings did not have any discoloration. races have a few scratches, but thats it. my tires due have excessive wear on the insides, and centers have about 80% tread left. wanted to tend to all the suspension components before i get an alignment done and put summer wheels on.
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Thread Starter
Super Member
Joined: Oct 2013
Posts: 506
Likes: 14
From: Texas
06cls
From you description on the way you tightened the wheel bearing nut, you have not a clue on how it is done.
Besides you should pack the wheel bearings a specific way and not fill the hub also, ask a mechanic just where you went wrong,
Using a brass punch to seat the races is a proper method not tightening the wheel nut to make sure they are seated, depending on how much force you applied could have actually marked the races or broke a roller.
Besides you should pack the wheel bearings a specific way and not fill the hub also, ask a mechanic just where you went wrong,
Using a brass punch to seat the races is a proper method not tightening the wheel nut to make sure they are seated, depending on how much force you applied could have actually marked the races or broke a roller.
this is how i packed the bearings
Last edited by 06cls55amg; Mar 21, 2014 at 09:34 AM.
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From: Canada
07 E63 + 07 CLK63CAB
Apologize, you method does have merit, but with the press you could displace some material of the hub, which would cause the bearing rollers to not mesh properly. I personally like to place the races in the freezer for a few hours to shrink them to ease the insertion process. With the hub in the oven at 200 degrees, the races literally go in with a light tap. Air Cool before assembly. You may be okay with the bearing position but are getting conflicting thoughts because of possible tire tread noise.
As Shardul has stated is there any lateral movement in the wheel when raised on the lift.
As Shardul has stated is there any lateral movement in the wheel when raised on the lift.
Thread Starter
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Joined: Oct 2013
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From: Texas
06cls
nm i fixed it, the seal they gave me was incorrect, had a metal ring with slots on it, thought maybe it was a re design and was rubbing against the inside and preventing the hub to seat to the end. put new mb seal in, re installed, wheel spins MUCH better now, no more noise. put summer wheels on as well. 18s to 20s makes big difference in driving...
Last edited by 06cls55amg; Mar 21, 2014 at 11:32 AM.
