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  #26  
Old 07-01-2019, 11:28 AM
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Quote:
Originally Posted by ard View Post
I should have added, WITHOUT looking it up.

The point, however, being that you almost never can see odd tire wear in 2000 miles.
You can if you look for it with a digital tread depth gauge that reads to 0.001". It'd work better if you also measured the tread depths when new. Everybody does that, right?

Also, high performance tires wear REALLY fast when they're new.
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  #27  
Old 07-02-2019, 09:58 PM
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It's your lower ball joints. They are worn and causing movement of toe in/out. An alignment won't pick it up unless the operator really knows what they are doing, because under static load they will stay in a position. On the highway at 60 miles an hour they'll be moving backwards and forwards changing toe. I bet your car feels squirrely and you blame the road surface and/or tyres. The squirreling is the rear wheels moving around ever so slightly in response to the road surface, which is why the inside edge is eating out and the rest of the tread is fine. It's not a camber problem, and it's nothing to do with the sway bar, which only controls roll and doesn't locate the suspension.

I ate two sets of rear tyres before fixing the problem and then it magically went away for good with new ball joints.
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  #28  
Old 07-03-2019, 06:02 AM
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Quote:
Originally Posted by brc5 View Post
It's your lower ball joints. They are worn and causing movement of toe in/out. An alignment won't pick it up unless the operator really knows what they are doing, because under static load they will stay in a position. On the highway at 60 miles an hour they'll be moving backwards and forwards changing toe. I bet your car feels squirrely and you blame the road surface and/or tyres.
Thanks for the info. No. My X5 does not feel squirrelly. It feels fine. Thatís why I said I didnít have any obvious symptoms until I looked at the tire. Iíll replace the ball joints though. Process does not look that difficult.

If I am replacing the lower ball joints it looks like that should be done before an alignment? Iíll also be checking my front suspension before I complete any work.




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  #29  
Old 07-03-2019, 07:33 AM
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I know lower ball joints have been mentioned but arenít these anti-roll bar links? Or are they the same thing? https://www.realoem.com/bmw/enUS/sho...diagId=33_2015


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  #30  
Old 07-03-2019, 07:40 AM
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Quote:
Originally Posted by BabyUnicornTaco View Post
I know lower ball joints have been mentioned but arenít these anti-roll bar links? Or are they the same thing? https://www.realoem.com/bmw/enUS/sho...diagId=33_2015


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ĒIn an automobile, ball joints are spherical bearings that connect the control arms to the steering knuckles. They are used on virtually every automobile madehttps://en.wikipedia.org/wiki/Ball_joint
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  #31  
Old 07-03-2019, 08:24 AM
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I guess at this point ill have to replace the anti-roll bar links and inspect the ball joints. Sound right to you guys?


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  #32  
Old 07-05-2019, 04:49 PM
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Rear Camber Tire Wear: Alignment or Refresh?

Other than the air bags, what else fails on the rear? I think Iím going to just replace the anti-roll bar link and the lower ball joints. But if Iím in there Iíd like to replace the little things. Iím guessing the answer is whatever I see that is bad when I take the wheel off.


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  #33  
Old 07-05-2019, 05:14 PM
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How many miles on that car? Ball joints -especially rears- aren't common failures. (Especially if the dust shield is intact...)

But report back.
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  #34  
Old 07-07-2019, 06:47 PM
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Originally Posted by ard View Post
How many miles on that car? Ball joints -especially rears- aren't common failures. (Especially if the dust shield is intact...)

But report back.


157,000. Waiting for a new jack pad to jack it up and look.


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  #35  
Old 07-07-2019, 07:01 PM
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I think the alignment is off and I nicked something on the thin part to make that tear. Other than the anti-roll bar links, things visually look good on the rear and there is zero noise/clunks.


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  #36  
Old 07-15-2019, 04:44 PM
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I put one of my spares on the rear tire that was torn. Alignment is scheduled for Wednesday. Can someone please post ardís alignment thread from his signature? Neither my phone or computer will allow me to access it from his signature. Help appreciated.


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  #37  
Old 07-15-2019, 05:20 PM
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Toe-in 0.02 all around. Camber balanced mid-range left and right, front and rear.

https://www.bimmerfest.com/forums/sh...d.php?t=668729
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  #38  
Old 07-15-2019, 05:37 PM
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0.01 to 0.02. Dont need to drive them too crazy...
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Alignment here: The Definitive Alignment Thread

OE is Original Equipment aka 'BMW Original Parts' aka 'What you buy at the BMW dealer with a BMW label'

OEM is Original Equipment Manufacturer... EITHER the company that made the OE part or.... A part this is identical to the OE part, but is sold by the OEM under their own label


OEM is not what BMW sells


http://www.bimmerzone.com/category/T...ricks_OEM.html

https://www.turnermotorsport.com/t-OEvsOEM
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  #39  
Old 07-15-2019, 05:53 PM
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Thanks guys. Needed some nighttime reading.
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  #40  
Old 07-15-2019, 06:53 PM
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It will be interesting to see your 'before' numbers.

They can tell a story...better if they tell THE story. PITA when they seem fine, but you have a wear issue. But lets see...
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Alignment here: The Definitive Alignment Thread

OE is Original Equipment aka 'BMW Original Parts' aka 'What you buy at the BMW dealer with a BMW label'

OEM is Original Equipment Manufacturer... EITHER the company that made the OE part or.... A part this is identical to the OE part, but is sold by the OEM under their own label


OEM is not what BMW sells


http://www.bimmerzone.com/category/T...ricks_OEM.html

https://www.turnermotorsport.com/t-OEvsOEM
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  #41  
Old 07-15-2019, 07:24 PM
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Quote:
Originally Posted by ard View Post
It will be interesting to see your 'before' numbers.

They can tell a story...better if they tell THE story. PITA when they seem fine, but you have a wear issue. But lets see...


I was thinking about this tire this weekend. It occurred to me that this was a tire that the installer destroyed the valve stem somehow when it was installed. I posted this somewhere in the past. I went a five miles down the road, TPM warning came on, and then returned to have them fix it. Probably 10,000 miles ago. My hypothesis is that I had sidewall damage from their mistake and even though they fixed the valve stem, the sidewall was not sufficient on the interior side of the tire hence the increased tread wear.


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  #42  
Old 07-15-2019, 07:29 PM
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I will still post before and after alignment specs.


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  #43  
Old 07-17-2019, 08:53 AM
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Rear Camber Tire Wear: Alignment or Refresh?

Before(heís not done so ignore the final): Click image for larger version

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  #44  
Old 07-17-2019, 09:20 AM
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E70 with 21" rims from X-6 wobble

2011 5.0 with MSport option, love this car!!

I have a sim. problem. slight steering wheel wobble, NOT speed related- noticeable between 45-65mph, but does not increase decrease with speed. Strange. Minimal, but I have had alignment done, rim and tire high speed balanced and proper -air pressure, using nitrogen (yeah, why?)

I have adjustable load level rear and Michelin Super Sport all around, rears are ten" 315s front are 285s.Worn bushings, forgot: Mileage, 138k

let me know if you have ideas, thx Q

Quote:
Originally Posted by BabyUnicornTaco View Post
2008 X5 4.8i with adaptive suspension. I went from a little camber wear to a lot in the past few months. I know I am due for an alignment and it has been at least 65,000 miles since any rear suspension parts were replaced. The rear was recently down to 31 psi from 35 psi over the past month so Iím sure that contributed as well.

1. Will an alignment be enough to correct this wear or will an alignment just be compensating for worn bushings?

2. My suspension feels good at the rear (subjective I know) but the camber wear is the only obvious symptom. Itís been a few years since my last alignment. What are the suspension pieces that would most contribute to camber issues?

3. Suggested kits to use? How difficult and time consuming would this rear refresh be?

Thanks for any suggestions.

Attachment 856439


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  #45  
Old 07-17-2019, 09:38 AM
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  #46  
Old 07-17-2019, 09:45 AM
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Quote:
Originally Posted by QDP View Post
2011 5.0 with MSport option, love this car!!

I have a sim. problem. slight steering wheel wobble, NOT speed related- noticeable between 45-65mph, but does not increase decrease with speed. Strange. Minimal, but I have had alignment done, rim and tire high speed balanced and proper -air pressure, using nitrogen (yeah, why?)

I have adjustable load level rear and Michelin Super Sport all around, rears are ten" 315s front are 285s.Worn bushings, forgot: Mileage, 138k

let me know if you have ideas, thx Q
Replace your thrust arm bushings...

Edit: DOES light braking at 55+/- trigger the vibration at all, change it?


.
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Alignment here: The Definitive Alignment Thread

OE is Original Equipment aka 'BMW Original Parts' aka 'What you buy at the BMW dealer with a BMW label'

OEM is Original Equipment Manufacturer... EITHER the company that made the OE part or.... A part this is identical to the OE part, but is sold by the OEM under their own label


OEM is not what BMW sells


http://www.bimmerzone.com/category/T...ricks_OEM.html

https://www.turnermotorsport.com/t-OEvsOEM

Last edited by ard; 07-17-2019 at 02:59 PM.
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  #47  
Old 07-17-2019, 09:47 AM
ard ard is offline
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Originally Posted by BabyUnicornTaco View Post
After: Attachment 858349


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well, so much for my advice of 0.01 to 0.02!

did someone confuse 0.01 with 0.10?

The before was horrific. So is the after tho.




.
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Alignment here: The Definitive Alignment Thread

OE is Original Equipment aka 'BMW Original Parts' aka 'What you buy at the BMW dealer with a BMW label'

OEM is Original Equipment Manufacturer... EITHER the company that made the OE part or.... A part this is identical to the OE part, but is sold by the OEM under their own label


OEM is not what BMW sells


http://www.bimmerzone.com/category/T...ricks_OEM.html

https://www.turnermotorsport.com/t-OEvsOEM

Last edited by ard; 07-17-2019 at 10:13 AM.
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  #48  
Old 07-17-2019, 11:16 AM
deroy deroy is offline
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Originally Posted by QDP View Post
rim and tire high speed balanced and proper -air pressure, using nitrogen (yeah, why?)

Is that the same as road force balanced? Hunter 9700 machine with a big roller pressed against the wheel.


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  #49  
Old 07-17-2019, 11:27 AM
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well, so much for my advice of 0.01 to 0.02!

did someone confuse 0.01 with 0.10?

The before was horrific. So is the after tho.




.


Their mistake. My miss. Working it out with them now. Sidetracked with a one year old. I looked for the number 1 and 2 while my kid was running around the shop. Missed the 0 before then. Iíll have it redone. I did like that they came back and said ďthat is one unusually smooth running X5.Ē Iíll take the good with the bad and make the bad good. Iíll report back.


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Old 07-17-2019, 03:04 PM
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Wait, so one tire was toed OUT 0.61?!?!

Was that on the destroyed tire?
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Alignment here: The Definitive Alignment Thread

OE is Original Equipment aka 'BMW Original Parts' aka 'What you buy at the BMW dealer with a BMW label'

OEM is Original Equipment Manufacturer... EITHER the company that made the OE part or.... A part this is identical to the OE part, but is sold by the OEM under their own label


OEM is not what BMW sells


http://www.bimmerzone.com/category/T...ricks_OEM.html

https://www.turnermotorsport.com/t-OEvsOEM

Last edited by ard; 07-17-2019 at 03:16 PM.
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