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 11-01-2007, 11:08 PM
Registered User
 
Join Date: Nov 2006
Location: FL
Posts: 507
sway bar links replaced, still have noise

I replaced the rear sway bar links, but I still get the classic noise when hitting bumps, speed bumps, etc....

It sounds like the wood spare tire cover is vibrating up and down, or some plastic sound vibrating....

WHere else should I look. could it be my rear seat, or my spare tire, it drives me crazy, I thought the sway bar replacement would surely fix it..

__________________
85 300CD Turbo "Das Polluter" 230K sold for $3,000

98 BMW 323is
Reply With Quote
  #2  
Old 11-02-2007, 12:07 AM
Registered User
 
Join Date: Oct 2007
Location: El Segundo Ca
Posts: 14
I had a loose piece of plastic that went under the rear bumper of my 85 300D that made a rattle. Just needed a screw to fix it.
Reply With Quote
  #3  
Old 11-02-2007, 12:29 PM
Registered User
 
Join Date: Nov 2006
Location: FL
Posts: 507
next

yes, that is what I am going to look at next, loose pieces of exterior pieces, trim, etc...that is more what it sounds like
__________________
85 300CD Turbo "Das Polluter" 230K sold for $3,000

98 BMW 323is
Reply With Quote
  #4  
Old 11-02-2007, 06:23 PM
Registered User
 
Join Date: Nov 2002
Location: Dallas
Posts: 802
muffler hangers sagging?

is the exhaust swinging and making contact & buzzing a heat sheild?

Just taking a guess
__________________
~shell
As of 2/2010:
2001 CLK55 0o\=*=/o0
13.6 @ 106mph
10K mi
1984 300SD
260K mi and going and going...
97 S600
46K miles
1991 Sentra SE-R (extremely dorked with)
www.se-r.net
Reply With Quote
  #5  
Old 02-19-2008, 09:24 AM
Registered User
 
Join Date: Nov 2006
Location: FL
Posts: 507
that might be it

I took out the back seat, and looked at the trim, the nuts on the top of the rear shock, and everything else, and it doesn't look out of the ordinary.

I got under the car and if I move the muffler by hand left and right I get metal on metal contact around the area of the where the transmission is, or the flex disc area (but toward the rear more) Should I try changing the exhaust hangers (including the metal stuff)
__________________
85 300CD Turbo "Das Polluter" 230K sold for $3,000

98 BMW 323is
Reply With Quote
  #6  
Old 02-19-2008, 09:37 AM
Chad300tdt's Avatar
Benzless Scoutmaster
 
Join Date: May 2007
Location: North Wales, PA
Posts: 4,001
Worn out subframe bushings can allow some noise on bumps too. I don't know if the noise would match your description, but you could check them out.
__________________
Chad
2006 Nissan Pathfinder LE
1998 Acura 3.0 CL
OBK#44
"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)

SOLD
1985 300TD - Red Dragon
1986 300SDL - Coda
1991 - 300TE
1995 - E320
1985 300CD - Gladys
Reply With Quote
  #7  
Old 02-19-2008, 11:29 AM
TTCummins's Avatar
Registered User
 
Join Date: Dec 2006
Location: Ypsilanti, Michigan
Posts: 240
Ball joints make a nice bucking sound when they get worn out. There are some stabilizer bushings that hold the bar away from the body that could be worn out/gone allowing some sort of vibration. Can you hear it more in the back or the front? My 124 has a belly pan that makes a flapping noise over bumps, I dont remember my 123 coupe having one, but anything's possible.
__________________
2003 Dodge Ram 2500 Cummins - Georend fully built trans, Banks Big Hoss Bundle, Smarty Tuner, 5" turbo back exhaust. 500 HP and 1100 ft/lbs to the ground.
1979 Mercedes-Benz 300CD - Lost to a four car pile up on 275, Thank You Michigan Drivers.
1986 Mercedes-Benz 300D - Sold, Euro non-turbo car.
Reply With Quote
  #8  
Old 02-19-2008, 07:03 PM
toomany MBZ's Avatar
Registered User
 
Join Date: Nov 2006
Location: central Va
Posts: 7,820
Quote:
Originally Posted by spugeddy View Post
I took out the back seat, and looked at the trim, the nuts on the top of the rear shock, and everything else, and it doesn't look out of the ordinary.

I got under the car and if I move the muffler by hand left and right I get metal on metal contact around the area of the where the transmission is, or the flex disc area (but toward the rear more) Should I try changing the exhaust hangers (including the metal stuff)
I would start by just replacing the rubber doughnuts, forget how many, a friend picked 'em up at the local AP store, for about three times the price via mail order.
Good luck.
Attached Thumbnails
sway bar links replaced, still have noise-muffler-hanger.jpg   sway bar links replaced, still have noise-resonator-hanger.jpg  
__________________
83 SD

84 CD
Reply With Quote
  #9  
Old 02-19-2008, 07:27 PM
Chad300tdt's Avatar
Benzless Scoutmaster
 
Join Date: May 2007
Location: North Wales, PA
Posts: 4,001
Quote:
Originally Posted by toomany MBZ View Post
I would start by just replacing the rubber doughnuts, forget how many, a friend picked 'em up at the local AP store, for about three times the price via mail order.
Good luck.
There's 4 of them on the rear muffler. There are soft and hard ones available. Get the hard ones. You could also upgrade to hangars from an SL which have a wire core to keep the exhaust from falling when the rubber fails.
__________________
Chad
2006 Nissan Pathfinder LE
1998 Acura 3.0 CL
OBK#44
"Pleasure in the job puts perfection in the work." - Aristotle (384-322 B.C.)

SOLD
1985 300TD - Red Dragon
1986 300SDL - Coda
1991 - 300TE
1995 - E320
1985 300CD - Gladys
Reply With Quote
  #10  
Old 02-20-2008, 02:01 PM
Registered User
 
Join Date: Nov 2006
Location: FL
Posts: 507
driving me crazy

The sound is coming from the passenger side rear wheel area as best I can hear.... maybe more to the middle of the axle.. it is only caused by bumps, the car rocking/swaying from turns, uneven roads, etc... It is not the CV axles, or sway bar, and I couldn't determine it was the nuts on the top of the rear shock...Visually, my muffler hangers all look good, but when I manipulate the exhaust I get it clanging on something metal around the differential area but It is not a metal sound....it is either suspension related, or vibration related right?

My best desription is it sounds like what I imagine the piece of wood covering the spare tire would sound like bumping up and down....(I removed the piece to rule that out already)
__________________
85 300CD Turbo "Das Polluter" 230K sold for $3,000

98 BMW 323is
Reply With Quote
  #11  
Old 02-20-2008, 02:06 PM
rrgrassi's Avatar
mmmmmm Diesel...
 
Join Date: Jun 2006
Location: Royse City Tx
Posts: 4,872
Differential mount and flex disks in good shape? How about the center DS bearing and bushing? Also, you were asked about the sub frame bushings. Have you checked them?
__________________
RRGrassi


70's SPM #5608 Fairmont A-4 MOW car

06 VW Jetta TDI 210K miles

03 VW Golf TDI 5 speed 372K Miles

RIP--Lost in fire...82 300D 322K was My Daily Driver-On the search for a w126 now...

90 Dodge D250 5.9 Cummins/5 speed. 350K
Reply With Quote
  #12  
Old 03-17-2008, 10:20 AM
Registered User
 
Join Date: Nov 2006
Location: FL
Posts: 507
....and the winner is.....

Bad rear shock. I put in the new Bilstein Comforts in the rear this weekend, and problem solved. Noise is gone when going over bumps. Turns out $115 brought me piece of mind... not bad.

http://www.dieselbenz.info/wiki/index.php?title=Replacing_Front_%26_Rear_Shocks

check out this DIY link

__________________
85 300CD Turbo "Das Polluter" 230K sold for $3,000

98 BMW 323is

Last edited by spugeddy; 03-17-2008 at 12:15 PM.
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 01:22 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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