E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > Suspension | Brakes | Chassis > Rear shocks - Should they rotate freely by hand?



Reply
 
Thread Tools Search this Thread
      10-11-2017, 09:11 AM   #1
tofu?
Second Lieutenant
88
Rep
242
Posts

Drives: e92 n54
Join Date: Dec 2013
Location: NYC 11385

iTrader: (0)

Rear shocks - Should they rotate freely by hand?

Quick question:

Should i be able to spin the rear shocks around by hand while the car is jacked up?

i'm trying to diagnose a rear clunk and it wasn't the end links
Appreciate 0
      10-11-2017, 01:39 PM   #2
austin
Private
24
Rep
80
Posts

Drives: '07 e90 335i
Join Date: Jul 2013
Location: CA

iTrader: (2)

Garage List
2007 e90 335i  [0.00]
Quote:
Originally Posted by tofu? View Post
Quick question:

Should i be able to spin the rear shocks around by hand while the car is jacked up?

i'm trying to diagnose a rear clunk and it wasn't the end links
They shouldn't spin. There are two nuts holding the rear shock in place, and they're both pretty easy to get to. Check them both, sounds like the bottom one is loose. Maybe also check the two torx bolts holding the bottom shock mount in place. Both bolts and the nuts are on the underside of the rear lower control arms.
Appreciate 2
feuer4275.50
      10-11-2017, 03:47 PM   #3
tofu?
Second Lieutenant
88
Rep
242
Posts

Drives: e92 n54
Join Date: Dec 2013
Location: NYC 11385

iTrader: (0)

Quote:
Originally Posted by austin View Post
They shouldn't spin. There are two nuts holding the rear shock in place, and they're both pretty easy to get to. Check them both, sounds like the bottom one is loose. Maybe also check the two torx bolts holding the bottom shock mount in place. Both bolts and the nuts are on the underside of the rear lower control arms.
i can spin it freely when i have the car jacked up. I think you found my clunking location.

I may as well change the mounts while i'm in there.

Thanks for the help!
Appreciate 0
      10-12-2017, 07:54 AM   #4
feuer
Major General
feuer's Avatar
United_States
4276
Rep
9,206
Posts

Drives: wife crazy!
Join Date: Apr 2015
Location: Chicago, IL

iTrader: (5)

Quote:
Originally Posted by tofu? View Post
i can spin it freely when i have the car jacked up. I think you found my clunking location.
I may as well change the mounts while i'm in there.
Thanks for the help!
Probably you did find the problem. Since you will be there replace the shocks and both, bottom and top mounts, not just the bottom.
Appreciate 0
      10-12-2017, 10:44 AM   #5
tofu?
Second Lieutenant
88
Rep
242
Posts

Drives: e92 n54
Join Date: Dec 2013
Location: NYC 11385

iTrader: (0)

Quote:
Originally Posted by feuer View Post
Probably you did find the problem. Since you will be there replace the shocks and both, bottom and top mounts, not just the bottom.
How do the bump stops hold up over time? Throw in an order for those too? OEM I assume? Car has a 0.5" drop in the rear at most

44k miles, but 20k are NYC driven (pothole mania)
Appreciate 0
      10-12-2017, 10:53 AM   #6
feuer
Major General
feuer's Avatar
United_States
4276
Rep
9,206
Posts

Drives: wife crazy!
Join Date: Apr 2015
Location: Chicago, IL

iTrader: (5)

Quote:
Originally Posted by tofu? View Post
How do the bump stops hold up over time? Throw in an order for those too? OEM I assume? Car has a 0.5" drop in the rear at most

44k miles, but 20k are NYC driven (pothole mania)
I replaced mine shocks and mounts at around the same time (50k) and reused the bump stops. However they failed at around 80k. I replaced them with the shock still on the car. I just disconnected the top mount.
Appreciate 0
      10-12-2017, 11:00 AM   #7
tofu?
Second Lieutenant
88
Rep
242
Posts

Drives: e92 n54
Join Date: Dec 2013
Location: NYC 11385

iTrader: (0)

Quote:
Originally Posted by feuer View Post
I replaced mine shocks and mounts at around the same time (50k) and reused the bump stops. However they failed at around 80k. I replaced them with the shock still on the car. I just disconnected the top mount.
Thanks
Appreciate 0
      10-16-2017, 11:34 PM   #8
The Nightman
Cometh
The Nightman's Avatar
1090
Rep
1,305
Posts

Drives: Boy's Soul
Join Date: Jul 2016
Location: Boy's Hole

iTrader: (4)

Garage List
I would replace the rear bump stops while you're in there. Mine failed at 60k
Appreciate 0
Reply

Bookmarks


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 02:10 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, 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