2010 2011 BMW 5 Series Forum F10
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
 

2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Wheels / Tires / Suspension / Brakes Is this a spring collapse?
Post Reply
 
Thread Tools Search this Thread
      05-26-2021, 09:44 PM   #1
chip3130
New Member
2
Rep
16
Posts

Drives: 2013 BMW 535xi MSport
Join Date: Nov 2017
Location: Queens, NY

iTrader: (0)

Is this a spring collapse?

Was driving on the highway this past weekend and experienced a sharp dip (not a pothole)... once going over it i heard a BOOOOOF and thought i blown out a tire, pulled over to the shoulder and took a look and it looked like the rear driver side Spring collapsed... thoughts?

This seems pretty rare, but could be something else. My mechanic is taking a look at it this weekend to diagnose, obviously anxious, what do you think?

I do have H&R springs installed.
Attached Images
   
Appreciate 0
      05-26-2021, 10:23 PM   #2
Hoa
Captain
United_States
79
Rep
720
Posts

Drives: BMW
Join Date: May 2010
Location: GA

iTrader: (8)

It does look like a spring related issue. Strut would not make it come that low and any arm will make the wheel bend a certain direction
Appreciate 0
      05-27-2021, 09:41 AM   #3
Unspec
Lieutenant Colonel
Unspec's Avatar
United_States
637
Rep
1,772
Posts

Drives: 2015 BMW 535xi
Join Date: Apr 2019
Location: New Jersey

iTrader: (0)

Yup, your spring probably "slipped" down. At that point, your strut is likely blown as well.
__________________
2015 BMW 535xi
Bootmod3 Stage 2 | ER charge pipe | ER Catted DP | Remus Exhaust | Gplus FMIC | KW V3 | Turner Monoball thrust arm bushings | Wallet regrets
ISTA VM Setup/Tutorial
Appreciate 0
      05-27-2021, 06:59 PM   #4
Blue Angel
Private First Class
Blue Angel's Avatar
Canada
38
Rep
143
Posts

Drives: 2011 323i and 2016 535d
Join Date: Mar 2011
Location: Ottawa, ON

iTrader: (0)

Please post pics of the failure, it will be interesting to see what went wrong.
Appreciate 0
      06-15-2021, 10:09 AM   #5
Blue Angel
Private First Class
Blue Angel's Avatar
Canada
38
Rep
143
Posts

Drives: 2011 323i and 2016 535d
Join Date: Mar 2011
Location: Ottawa, ON

iTrader: (0)

Any update on the failure?
Appreciate 0
      07-09-2021, 10:53 AM   #6
chip3130
New Member
2
Rep
16
Posts

Drives: 2013 BMW 535xi MSport
Join Date: Nov 2017
Location: Queens, NY

iTrader: (0)

Will post pics once Iím at a computer, but it was a knuckle collapse, completely stripped from the wheel hub. 😪
Appreciate 0
      07-09-2021, 11:50 AM   #7
Blue Angel
Private First Class
Blue Angel's Avatar
Canada
38
Rep
143
Posts

Drives: 2011 323i and 2016 535d
Join Date: Mar 2011
Location: Ottawa, ON

iTrader: (0)

WAT?!? Wow, I can't wait to see pictures of this.

When you hit the sharp dip did the car bottom out? Were the bump-stops still installed on the shocks?
Appreciate 0
      07-17-2021, 01:43 PM   #8
Blue Angel
Private First Class
Blue Angel's Avatar
Canada
38
Rep
143
Posts

Drives: 2011 323i and 2016 535d
Join Date: Mar 2011
Location: Ottawa, ON

iTrader: (0)

Did you ever get a chance to put those pics on your computer?
Appreciate 0
      07-17-2021, 02:01 PM   #9
musclesmarinara75
Private First Class
musclesmarinara75's Avatar
United_States
41
Rep
101
Posts

Drives: 2013 BMW F10 N55 535i XDrive
Join Date: Apr 2021
Location: Bayonne, NJ

iTrader: (0)

[QUOTE=chip3130;27634165]Was driving on the highway this past weekend and experienced a sharp dip (not a pothole)... once going over it i heard a BOOOOOF and thought i blown out a tire, pulled over to the shoulder and took a look and it looked like the rear driver side Spring collapsed... thoughts?

This seems pretty rare, but could be something else. My mechanic is taking a look at it this weekend to diagnose, obviously anxious, what do you think?

I do have H&R springs installed.[/

Is that College Point in Queens.. looks familiar
__________________
$ PURE STAGE 2 {} ER CATTED DP {} BM3 CUSTOM TUNE BY CAREY JORDAN {} DORCH HPFP {} ER CHARGEPIPES {} ER FMIC {} TMS CF INTAKE {} DINAN EXHAUST {} CARBON HOOD TRUNK LIP AND MIRRORS $
Appreciate 0
      07-18-2021, 08:43 PM   #10
chip3130
New Member
2
Rep
16
Posts

Drives: 2013 BMW 535xi MSport
Join Date: Nov 2017
Location: Queens, NY

iTrader: (0)

Quote:
Originally Posted by Blue Angel View Post
Did you ever get a chance to put those pics on your computer?

Appreciate 1
      07-18-2021, 08:45 PM   #11
chip3130
New Member
2
Rep
16
Posts

Drives: 2013 BMW 535xi MSport
Join Date: Nov 2017
Location: Queens, NY

iTrader: (0)

[QUOTE=musclesmarinara75;27814325]
Quote:
Originally Posted by chip3130 View Post
Was driving on the highway this past weekend and experienced a sharp dip (not a pothole)... once going over it i heard a BOOOOOF and thought i blown out a tire, pulled over to the shoulder and took a look and it looked like the rear driver side Spring collapsed... thoughts?

This seems pretty rare, but could be something else. My mechanic is taking a look at it this weekend to diagnose, obviously anxious, what do you think?

I do have H&R springs installed.[/

Is that College Point in Queens.. looks familiar
lol, on my way back to Queens actually, this happened near Baychester, exit 13 on 95 south.
Appreciate 0
      07-18-2021, 08:48 PM   #12
chip3130
New Member
2
Rep
16
Posts

Drives: 2013 BMW 535xi MSport
Join Date: Nov 2017
Location: Queens, NY

iTrader: (0)

Quote:
Originally Posted by Blue Angel View Post
WAT?!? Wow, I can't wait to see pictures of this.

When you hit the sharp dip did the car bottom out? Were the bump-stops still installed on the shocks?
Shocks still good, and yes car bottomed out immediately. Was still able to move, didnít lose control but the wheel was pressed up against the body. Car was repaired, knuckle fixed with new wheel hub.
Appreciate 0
      07-19-2021, 01:27 PM   #13
ezaircon4jc
Brigadier General
United_States
1172
Rep
3,757
Posts

Drives: 2014 535i M Sport
Join Date: Jan 2015
Location: San Diego

iTrader: (0)

Quote:
Originally Posted by chip3130 View Post

That sure looks like a blown shock to me. They should be dry and that one has significant moisture (at the top).
Appreciate 0
      07-19-2021, 11:09 PM   #14
Blue Angel
Private First Class
Blue Angel's Avatar
Canada
38
Rep
143
Posts

Drives: 2011 323i and 2016 535d
Join Date: Mar 2011
Location: Ottawa, ON

iTrader: (0)

Ah, looks like the bolt that holds the shock to the knuckle broke off.

This is interesting. That bolt has a very high torque spec (it's apparently very hard to remove). I wonder if it was under-torqued when installed, leading to a fatigue failure?

I would consider having the bolt on the other side replaced, and having the torque on both sides verified. My $.02
Appreciate 0
      07-21-2021, 05:18 PM   #15
Unspec
Lieutenant Colonel
Unspec's Avatar
United_States
637
Rep
1,772
Posts

Drives: 2015 BMW 535xi
Join Date: Apr 2019
Location: New Jersey

iTrader: (0)

Quote:
Originally Posted by Blue Angel View Post
Ah, looks like the bolt that holds the shock to the knuckle broke off.

This is interesting. That bolt has a very high torque spec (it's apparently very hard to remove). I wonder if it was under-torqued when installed, leading to a fatigue failure?

I would consider having the bolt on the other side replaced, and having the torque on both sides verified. My $.02
Doesn't look like the bolt failed - looks like they were in the middle of disassembly when the photo was taken.
__________________
2015 BMW 535xi
Bootmod3 Stage 2 | ER charge pipe | ER Catted DP | Remus Exhaust | Gplus FMIC | KW V3 | Turner Monoball thrust arm bushings | Wallet regrets
ISTA VM Setup/Tutorial
Appreciate 0
      07-21-2021, 07:29 PM   #16
Blue Angel
Private First Class
Blue Angel's Avatar
Canada
38
Rep
143
Posts

Drives: 2011 323i and 2016 535d
Join Date: Mar 2011
Location: Ottawa, ON

iTrader: (0)

Quote:
Originally Posted by Unspec View Post
Doesn't look like the bolt failed - looks like they were in the middle of disassembly when the photo was taken.
chip3130, can you confirm if this is a pic of the failure, or during disassembly? If during disassembly can you confirm the point of failure (i.e. were there other failed components not shown in these pictures)?
Appreciate 0
      07-26-2021, 08:43 PM   #17
chip3130
New Member
2
Rep
16
Posts

Drives: 2013 BMW 535xi MSport
Join Date: Nov 2017
Location: Queens, NY

iTrader: (0)

Blue Angel is correct. This photo is of the car on lift for initial inspection. Bolt failed.
Appreciate 0
      07-26-2021, 09:08 PM   #18
Blue Angel
Private First Class
Blue Angel's Avatar
Canada
38
Rep
143
Posts

Drives: 2011 323i and 2016 535d
Join Date: Mar 2011
Location: Ottawa, ON

iTrader: (0)

Quote:
Originally Posted by chip3130 View Post
Blue Angel is correct. This photo is of the car on lift for initial inspection. Bolt failed.
Thanks for clarifying!

Looks like that bolt is supposed to be torqued to 250 Nm (184 ft-lbs), assuming the member who posted the info is correct:

https://f10.5post.com/forums/showthread.php?t=1464505

Sounds about right. Since it's tough to get to I can see why someone might not take the time to torque it properly, which could lead to a fatigue failure. Scary stuff!
Appreciate 0
      07-26-2021, 10:44 PM   #19
Unspec
Lieutenant Colonel
Unspec's Avatar
United_States
637
Rep
1,772
Posts

Drives: 2015 BMW 535xi
Join Date: Apr 2019
Location: New Jersey

iTrader: (0)

Quote:
Originally Posted by Blue Angel View Post
Thanks for clarifying!

Looks like that bolt is supposed to be torqued to 250 Nm (184 ft-lbs), assuming the member who posted the info is correct:

https://f10.5post.com/forums/showthread.php?t=1464505

Sounds about right. Since it's tough to get to I can see why someone might not take the time to torque it properly, which could lead to a fatigue failure. Scary stuff!
Can confirm that it is 250nm, and can confirm it's a bitch to get to. It took me 2 days to torque it to spec because I was so gassed after installing my coilovers and I needed rest. You need to take off the rear toe arm to get any realistic amount of swing on the torque wrench. You basically have to bench press the car if you don't have a lift lol
__________________
2015 BMW 535xi
Bootmod3 Stage 2 | ER charge pipe | ER Catted DP | Remus Exhaust | Gplus FMIC | KW V3 | Turner Monoball thrust arm bushings | Wallet regrets
ISTA VM Setup/Tutorial
Appreciate 0
      07-27-2021, 06:30 AM   #20
Blue Angel
Private First Class
Blue Angel's Avatar
Canada
38
Rep
143
Posts

Drives: 2011 323i and 2016 535d
Join Date: Mar 2011
Location: Ottawa, ON

iTrader: (0)

Thanks for the advice! My coilovers just arrived so I'll be installing them soon.
Appreciate 0
Post 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



All times are GMT -5. The time now is 10:09 AM.




5post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
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