E90Post
 


GTB Performance
 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Rear upper control arm spindle & bolt stripped. Help/Advice Please! e90 335i



Reply
 
Thread Tools Search this Thread
      01-31-2013, 11:40 PM   #1
spec1234
Private
spec1234's Avatar
0
Rep
61
Posts

 
Drives: 2008 e90 335i
Join Date: Dec 2012
Location: Greenville, SC

iTrader: (1)

Garage List
2008 335i  [5.00]
Rear upper control arm spindle & bolt stripped. Help/Advice Please! e90 335i

Hey all,

A couple friends and I were replacing the suspension on my e90 335i tonight with an eibach pro kit and we found, as we were doing the rear passenger side, that the bolt going through the upper control arm and into the spindle had been cross threaded and partially stripped the last time it was reinserted (sometime before I purchased the car) we took it out in order to get the spring out, but were unable to get it back in because of how severely it was stripped. Both the bolt and the spindle on the wheel carrier are stripped.

We were able to get a work around with a bolt of the same diameter, but instead of being threaded in completely, only the tip was threaded with a smooth steel shank running most of the bolt length (a grip, thanks for the nomenclature tip avocet). We added a nut onto the end for added security and torqued everything in. It's not going anywhere but it is far from ideal. We finished everything up and drove it around the block and nothing is going to come undone.

I plan to take it to the bmw dealer first thing in the morning, (thankfully it's only a 2 mile drive) but does anyone know what to expect as far as cost for getting a new bolt and having the spindle tapped?

Thanks and sorry for the ramble.

Last edited by spec1234; 02-01-2013 at 07:50 AM. Reason: To add some details missed in my frustration last night
Appreciate 0
      01-31-2013, 11:54 PM   #2
centexE9x
Private
0
Rep
54
Posts

 
Drives: e9x coupe
Join Date: Dec 2012
Location: austin

iTrader: (0)

My bet is that they will quote a new carrier, and wheel bearing along with 3.5-4hrs Labor. If I was fixing/replacing it that's how I would do it. Too much liability otherwise, and it will destroy the axle/boot if it comes out and starts dragging on it. I've seen one before. Was like a $1200+ repair.
Appreciate 0
      02-01-2013, 12:04 AM   #3
avocet
Lieutenant
6
Rep
565
Posts

 
Drives: 2007 328i
Join Date: Sep 2010
Location: Vancouver bc

iTrader: (0)

you have gotten the bolt all the way through and were able to get a nut on it... i would seriously consider cleaning up the bore with a good drill or reamer, and getting a high quality gr 8 bolt with a nice cadmium or zinc plate and a nylon self locking nut of same grade and calling it a day. get some never seize liberally applied and you will be good forever...

p.s. if you run a bolt and nut you want the grip(the non threaded length of the bolt) to be the section that is under shear load. as in you don't want the threads to be at the same spot at the split between components.
Appreciate 0
      02-01-2013, 01:04 AM   #4
khaye1
Colonel
khaye1's Avatar
Philippines
37
Rep
2,690
Posts

 
Drives: '12 MW 335i
Join Date: Feb 2009
Location: San Diego

iTrader: (7)

Just buy a nut and bolt I believe it's $10 for the pair from the dealer.
__________________
Appreciate 0
      02-01-2013, 03:28 AM   #5
index1489
Colonel
index1489's Avatar
United_States
29
Rep
2,116
Posts

 
Drives: Out of warranty BMW
Join Date: Sep 2008
Location: Chino, CA

iTrader: (7)

Quote:
Originally Posted by khaye1 View Post
Just buy a nut and bolt I believe it's $10 for the pair from the dealer.
The female portion is stripped from being cross threaded, you can't just replace the bolt, when it comes to something like this, I would just replace the spindle and wheel bearing, wayyy to much liability, DON'T Mickey Mouse it when it comes to suspension.

Buy the Bentley e90 Service Manual on Amazon ($80) which outlines exactly this procedure, I was just reading about how to do this searching for the parking brake adjustment in the book , order the OEM parts from getbmwparts.com or bmwpartspros.com (20 Percent off MSRP list typical), and get it done the right way.

Or find a good indy shop to do it the dealer is going to charge the shit out of you, I wouldn't even waste my time unless your prepared to pay over a grand AT LEAST.


33326774807 Left Wheel Carrier MSRP $560.59 Online Price $423.80
33326774808 Right


33416762321 Bearing MSRP $87.99 Online Price $73.91

33306793891 Bolt MSRP $6.03 Online Price $4.27 (Not 100% on the bolt, I think its 15 on the diagram but idea of cost.)


Be prepared to pay 100 percent markup on the MSRP price at the dealer + 150 hour labor 3-4 hours. They aren't going to tap threads on suspension parts, not in a million years.

Good luck man, not a good sign that your suspension had been messed with before you brought the car.
Attached Images
  
__________________
Gotta pay to play.

Last edited by index1489; 02-01-2013 at 03:50 AM.
Appreciate 0
      02-01-2013, 07:44 AM   #6
spec1234
Private
spec1234's Avatar
0
Rep
61
Posts

 
Drives: 2008 e90 335i
Join Date: Dec 2012
Location: Greenville, SC

iTrader: (1)

Garage List
2008 335i  [5.00]
Quote:
Originally Posted by avocet View Post
i would seriously consider cleaning up the bore with a good drill or reamer, and getting a high quality gr 8 bolt with a nice cadmium or zinc plate and a nylon self locking nut of same grade and calling it a day. get some never seize liberally applied and you will be good forever...
Quote:
Originally Posted by index1489 View Post
Good luck man, not a good sign that your suspension had been messed with before you brought the car.
Thanks for all your info everyone.

Index, how do you feel about running Avocet's solution as a temporary fix for a week or two along with cautious and conservative driving until I can get all the parts in and another afternoon off work to get it all done? Or do you feel that's ill advised even as a temporary solution?

And yeah, I was not happy when I found this, but I'm glad I did. If I hadn't lowered it there's not telling when I would have found it and what kind of failure may have occurred before I did.
Appreciate 0
      02-01-2013, 11:46 AM   #7
khaye1
Colonel
khaye1's Avatar
Philippines
37
Rep
2,690
Posts

 
Drives: '12 MW 335i
Join Date: Feb 2009
Location: San Diego

iTrader: (7)

Quote:
Originally Posted by index1489 View Post
The female portion is stripped from being cross threaded, you can't just replace the bolt, when it comes to something like this, I would just replace the spindle and wheel bearing, wayyy to much liability, DON'T Mickey Mouse it when it comes to suspension.

Buy the Bentley e90 Service Manual on Amazon ($80) which outlines exactly this procedure, I was just reading about how to do this searching for the parking brake adjustment in the book , order the OEM parts from getbmwparts.com or bmwpartspros.com (20 Percent off MSRP list typical), and get it done the right way.

Or find a good indy shop to do it the dealer is going to charge the shit out of you, I wouldn't even waste my time unless your prepared to pay over a grand AT LEAST.


33326774807 Left Wheel Carrier MSRP $560.59 Online Price $423.80
33326774808 Right


33416762321 Bearing MSRP $87.99 Online Price $73.91

33306793891 Bolt MSRP $6.03 Online Price $4.27 (Not 100% on the bolt, I think its 15 on the diagram but idea of cost.)


Be prepared to pay 100 percent markup on the MSRP price at the dealer + 150 hour labor 3-4 hours. They aren't going to tap threads on suspension parts, not in a million years.

Good luck man, not a good sign that your suspension had been messed with before you brought the car.
I was thinking part # 6...sorry I was way off
__________________
Appreciate 0
      02-01-2013, 02:59 PM   #8
index1489
Colonel
index1489's Avatar
United_States
29
Rep
2,116
Posts

 
Drives: Out of warranty BMW
Join Date: Sep 2008
Location: Chino, CA

iTrader: (7)

Might be OK short term. Remember to torque bushings in the loaded position (when the car is on the ground) or you will preload them which will cause them to wear faster and not work properly.

The Bentley manual will outline all of this, in general most of the back links are all bushings, but you can mostly get to them while the car is on the ground due to the design of the rear bumper.

Bentley manual also says to sit on the car (engine bay hood open area/trunk open area) and bounce the suspension a few times to seat it when you lower the car to the ground before torquing.

On the front only where the links join to the subframe are bushings and need to be torqued when the car is on the ground, where they connect to the spindle are ball joints and can be torqued in the air. These are harder to get to unless you have a shop lift, but a neat trick I read on the forums is to jack the hub up with another jack to a measured point as when the car was on the ground and torque Luckily since you are only changing struts/springs you should be fine and didn't touch bushings in the front.


Attached PDF outlining what need to be torqued on the ground, all the RED torque numbers are the ones. Go to pages 3 (rear) 4 (front)
Attached Images
File Type: pdf m3 bits + shock + springs.pdf (125.1 KB, 50 views)
__________________
Gotta pay to play.

Last edited by index1489; 02-01-2013 at 03:12 PM.
Appreciate 0
      02-01-2013, 03:21 PM   #9
spec1234
Private
spec1234's Avatar
0
Rep
61
Posts

 
Drives: 2008 e90 335i
Join Date: Dec 2012
Location: Greenville, SC

iTrader: (1)

Garage List
2008 335i  [5.00]
Yeah, I think I'm going to have to run that fix at least for a few days til I can get all the parts in (don't have a second car or any other way to get around).

Thankfully one of the guys helping me is an Audi mechanic, so was aware of what needed to be torqued under load.

Thanks so much for all the help and info! I've already placed an order for that manual, it'll be a great thing to have for future reference.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump


All times are GMT -5. The time now is 03:59 AM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST