Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Fluid Motor Union
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #41  
Old 01-14-2021, 04:34 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 7,257
andrewwynn is on a distinguished road
Front Bearing Removal Tool

I've had a mystery shudder in my steering for a long time. It would be most obvious during gentle braking near 50 mph which screams wishbone control arm (side vs. front). I even bought an OEM set to install but then wife's X5 developed the same issue but 10x worse so I put the arms on her car since mine was intemittent anyhow.

How a ball joint cures itself for many months at a time is still a mystery.

Anyhow my moron mechanic* didn't replace a torn CV boot and that of course led to outer CV joint failure and other than crunchy left turns it also would cause steering wobble once in a great while.

Meanwhile the left front wheel bearing went out so I finally got enough fire lit under my ass to fix a bunch of shit and when I took out the bearing I noticed there was play in the bearing left/right which could have been the source of that mystery wobble. Additional evidence is the left front brake pads were far far more worn which would align with grabby brake causing steering shimmy and also bearing not rigid allowing the rotor to wobble going though the caliper.

New axle installed into refurbished hub, new rotor installed about to install the new pads and I can finally have fully functioning brakes. Wait until you see the state of the old left pads!



Zoom in; there is pad material on the worn pad! There is about 3x as much on the right side pads. Enough left I'll toss in the trunk in case something similar happens in the future. I will also check the right front pads occasionally since no sensor over there. I'm considering adding one in if I can figure out if I need to wire in series or parallel. Now that I've personally experienced one side wearing far far faster than the other.
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote

Sponsored Links

  #42  
Old 01-14-2021, 04:44 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 7,257
andrewwynn is on a distinguished road
Summary; I think your gut may have been tuned correctly and i think you can non-destructively assess the situation.

I didn't notice the play in my bearing until after I loosened the axle nut!

Once I did the hub wobbled liked crazy!

Loosen the axle nut a few and tap the axle to un-snug it from the inside bearing race. (remove the abs sensor first; don't ask me to admit why I know that's important).

With the rotor on use clean gloves and see if you can wobble the hub. I can do the test on my brand new axle/rotor combination before I finish my brakes today.
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #43  
Old 01-14-2021, 07:18 PM
Member
 
Join Date: Jul 2016
Location: Menlo Park, CA
Posts: 1,640
Fifty150hs is on a distinguished road
Quote:
Originally Posted by andrewwynn View Post
I've had a mystery shudder in my steering for a long time. It would be most obvious during gentle braking near 50 mph which screams wishbone control arm (side vs. front). I even bought an OEM set to install but then wife's X5 developed the same issue but 10x worse so I put the arms on her car since mine was intemittent anyhow.

How a ball joint cures itself for many months at a time is still a mystery.

Anyhow my moron mechanic* didn't replace a torn CV boot and that of course led to outer CV joint failure and other than crunchy left turns it also would cause steering wobble once in a great while.

Meanwhile the left front wheel bearing went out so I finally got enough fire lit under my ass to fix a bunch of shit and when I took out the bearing I noticed there was play in the bearing left/right which could have been the source of that mystery wobble. Additional evidence is the left front brake pads were far far more worn which would align with grabby brake causing steering shimmy and also bearing not rigid allowing the rotor to wobble going though the caliper.

New axle installed into refurbished hub, new rotor installed about to install the new pads and I can finally have fully functioning brakes. Wait until you see the state of the old left pads!



Zoom in; there is pad material on the worn pad! There is about 3x as much on the right side pads. Enough left I'll toss in the trunk in case something similar happens in the future. I will also check the right front pads occasionally since no sensor over there. I'm considering adding one in if I can figure out if I need to wire in series or parallel. Now that I've personally experienced one side wearing far far faster than the other.
Wow! That one pad looks basically brand new!
Reply With Quote
  #44  
Old 01-16-2021, 05:27 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 7,257
andrewwynn is on a distinguished road
Quote:
Originally Posted by Fifty150hs View Post
Wow! That one pad looks basically brand new!


That is the new pad.

The worn right pad had about 3x the material of the left pads. I think my bearing was worn enough I was actually getting a small amount of thank toe change. (after replacing bearing my steering wheel is centered differently than before).


Haven't driven fast enough to test for shimmy yet but have new meyle HD arms already on hand.

Today get to bleed the brakes then do some test driving on the freeway and some firm braking.

I'll try to get the left vs. right brake pad photo. It was as different as the wear on the Alternator slip rings. I'm hoping I'm correct that it was the bearing the whole time.



The shimmy may have also been from this destroyed CV outer joint.

I was entirely convinced I would see d&d dice shaped bearings when I opened that up but didn't see any problem with the bearings just lots of debris in there. I think I'll do a clean flush with brake clean to determine if that's the case.

It means that likely if you have a crunchy CV joint you could likely clean and repack to punt replacement. I drove for about half a year on mine after I already planned to replace it.
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #45  
Old 01-16-2021, 05:30 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 7,257
andrewwynn is on a distinguished road
Front Bearing Removal Tool

Quote:
Originally Posted by Crowz View Post
Wifes X5 vibrates like hell under load or in a turn when the control arm that goes from the front of the car to the hub gets worn. Weirdest thing I have ever seen. The symptoms scream bad wheel bearing when it wears out but there isn't any vibration at a given speed like a wheel bearing. Brakes and turning at speed causes the vibration on hers. Again may not be the culprit but that was what I run into allot on her X5.


The way I spotted it was by not jacking up the car and having someone turn the wheel while watching what has play in it.


That's very odd. My wife's e53 front bushings were so worn that the wheels moved over half an inch when hitting the brakes yet no shimmy at any speed or any braking. Every time I've had shimmy it was the sideways wishbone control arms.

(Until my car which seems like was the bearing). I just discovered a new way to test the bearing which is described above.
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #46  
Old 01-16-2021, 05:39 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 7,257
andrewwynn is on a distinguished road
Quote:
Originally Posted by Fifty150hs View Post
Unfortunately, I have not been able to get to it yet. Fortunately, I've only been driving around town where the load is not as great and the shudder/vibration much less pronounced. I have the front guibo, CSB and rear CV sitting in the garage ready to go on. I checked the new CSB for movement and it has some, but nothing like the one on the truck. Fingers crossed this is the problem. I hope to be able to get to it in a couple of weeks.



I checked my front wheels for movement with truck up on stands and there is a slight amount of movement, but nothing that would be likely to cause the vibration I've been getting. Still hoping it's not a wheel bearing.

Wheel bearing is like $35. Once you have the right tool it's not difficult to change.

Do the process I described earlier to check the bearing. (and will repeat here).

When I just replaced my bearing I noticed no slop in the bearing/hub until I loosened the axle nut. Once that was loose and I tapped the axle in a few mm so the axle wasn't clamping the bearing tight holy crap was the bearing sloppy. I could twist it off axis with one hand from just the hub over a degree. I wish I took a video.

When I pressed in the new bearing and the hub into that, I could barely detect any off axis motion whatsoever. Also after getting it all back together I noticed my steering wheel is now more centered when driving straight indicating that almost certainly the bearing was twisting while driving and when braking occasionally would wobble like a bad shopping cart wheel.

I haven't speed tested yet to confirm if the braking shimmy has also been cured but the wishbone arms looked in perfect condition when I was doing the axle/bearing/brake job this week
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #47  
Old 01-17-2021, 10:28 PM
Member
 
Join Date: Jul 2016
Location: Menlo Park, CA
Posts: 1,640
Fifty150hs is on a distinguished road
So I installed a new CSB and flex disk. It made no difference. I Continue to have the vibration and wobble. The car feels like it is shaking side to side some as well as the vibration. The higher the speed, the worse the vibration. I'm at a loss. I think I'm going to take it to my indy and pay for a diagnosis.
Reply With Quote
  #48  
Old 01-17-2021, 10:40 PM
Overboost's Avatar
//Binary is in my DNA
 
Join Date: Apr 2006
Location: Huntersville, NC
Posts: 3,005
Overboost is on a distinguished road
Just curious if you swapped front tires to rear? Eliminate the wheels and tires from the equation.
Reply With Quote
  #49  
Old 01-17-2021, 10:51 PM
Member
 
Join Date: Jul 2016
Location: Menlo Park, CA
Posts: 1,640
Fifty150hs is on a distinguished road
Quote:
Originally Posted by Overboost View Post
Just curious if you swapped front tires to rear? Eliminate the wheels and tires from the equation.
I put the spare on one corner at a time to see if that would make a difference before changing the parts. It didn't. Because it didn't and it is worse under load it had me thinking drive line.
Reply With Quote
  #50  
Old 01-18-2021, 07:53 AM
Overboost's Avatar
//Binary is in my DNA
 
Join Date: Apr 2006
Location: Huntersville, NC
Posts: 3,005
Overboost is on a distinguished road
Ah gotcha. I assumed you felt the vibration and wobble in the steering wheel. My E46 went through this and is was the u-joint at the end of the driveshaft.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 11:57 PM.
vBulletin, Copyright 2021, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.