Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 05-31-2013, 06:46 AM
Registered User
 
Join Date: Jul 2004
Location: Barrington, RI
Posts: 5,773
Left Front Suspension Clunk over Pot Holes

When I purchased my new 95 E300D, I noticed that, sometimes, there was a moderate clunk (not horrible but definitely noticeable) from the left front of the car when going over road irregularities. The PO thought it might be the strut, though visually it looks fine.

I thought that whatever it was would get flagged at inspection, but the car passed with no issues. And the place where I get my cars inspected is pretty rigorous...not the perfunctory inspection you get some places. So, whatever it is, it doesn't appear to be safety related....unless the inspector screwed up.

Any ideas?

__________________
06 E320 CDI "Benson", Platinum Blue, 184k mi, Stage 1 tune, tuned TCU
06 E320 CDI "Rutherford", Black, 160k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 137k mi, wastegate conversion

19 Honda CR-V EX 38k mi
Thirteen other MB's owned and sold
1961 Very Tolerant Wife
Reply With Quote
  #2  
Old 05-31-2013, 07:00 AM
vstech's Avatar
DD MOD, HVAC,MCP,Mac,GMAC
 
Join Date: Mar 2006
Location: Mount Holly, NC
Posts: 26,471
swaybar, LCA, ball joint... plenty of stuff underthere to clunk. odd an inspection wouldn't catch it, but I bet an alignment shop would.
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread
"as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do!

My drivers:
1987 190D 2.5Turbo
1987 190D 2.5Turbo
1987 190D 2.5-5SPEED!!!

1987 300TD
1987 300TD
1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
Reply With Quote
  #3  
Old 05-31-2013, 07:13 AM
Registered User
 
Join Date: Jul 2004
Location: Barrington, RI
Posts: 5,773
Quote:
Originally Posted by vstech View Post
swaybar, LCA, ball joint... plenty of stuff underthere to clunk. odd an inspection wouldn't catch it, but I bet an alignment shop would.
Yeah, I know there are lots of possibilities....assuming that most if not all would be ruled out by inspection. Needs a tire rotation anyway....I'll get it looked at.
__________________
06 E320 CDI "Benson", Platinum Blue, 184k mi, Stage 1 tune, tuned TCU
06 E320 CDI "Rutherford", Black, 160k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver, 137k mi, wastegate conversion

19 Honda CR-V EX 38k mi
Thirteen other MB's owned and sold
1961 Very Tolerant Wife
Reply With Quote
  #4  
Old 05-31-2013, 07:13 AM
uberwgn's Avatar
Registered User
 
Join Date: Jul 2005
Location: New England
Posts: 979
Worn sway bar end links can make a lot of noise, Shertex! They need to be freshened up periodically.
Reply With Quote
  #5  
Old 05-31-2013, 08:32 AM
Registered User
 
Join Date: Nov 2010
Location: TX
Posts: 3,905
the sway bar links clunk as well as the ball joints, checking the ball joints in a W124 and 201 are a bit hard, you need to lever it upwards, usually a 6 ft piece of wood is used or CAT ore hauler sized channel locks between the pinch bolt and arm shoulder boss.
__________________
2012 BMW X5 (Beef + Granite suspension model)

1995 E300D - The original humming machine (consumed by Flood 2017)
2000 E320 - The evolution (consumed by flood 2017)
Reply With Quote
  #6  
Old 05-31-2013, 06:29 PM
Registered User
 
Join Date: Jan 2012
Posts: 7,534
My 127,000 mile R129 SL ( that uses W124 bits ) has an increasing metallic rattle / click in the front. Ball joints / upper strut mounts are 4,000 Mi, tie rods are fine, steering box does have some wear. The noise has increased slightly after each track day and autocross I've run.

It has the classic feel / sound of a worn internal upper strut bushing. The strut / shock action is just fine and will be since the piston sealing band is still good enough.

The strut bushing wear as the suspension goes up and down, as the car is steered and under braking. Under braking the strut body tries to rotate forward increasing the bushings load, couple this with some bumpy road and wear increases.

Checking the strut is somewhat difficult on the car. If the suspension is left to hang the system tends to bind, if on it's wheels there isn't enough room to grab the strut body and shake. You would want to move the strut body left and right then front to back. This bushing is part of the strut and can't be changed. I don't worry too much about bushing wear as nothing will fly off and the strut will start to leak long before the play gets enough to worry about.
Reply With Quote
  #7  
Old 06-03-2013, 07:36 PM
Registered User
 
Join Date: Jan 2012
Posts: 7,534
Fixed the front end noise on the SL today. The strut rod was slightly loose allowing it to shift in the upper strut mount. I located the noise by grabbing the " broken mount safety hoop" and pulling hard.

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 08:43 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2022, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page