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 > Tech Help

LinkBack Thread Tools Display Modes
Old 12-02-2000, 08:56 PM
Posts: n/a
Okay, the babe's '91 300D (which used to be mine) suddenly has a new sound in it's vocabulary. It appears during acceleration from a standstill and again accelerating around corners. It does not speak in reverse or when accelerated with the brakes down firmly. What might this new thing be? As best I can tell, it's coming from the rear end, so it seems to me that it's something in the drive train (duh). Anybody have any similar experiences? Got a clue? The thumps come in rapid succession on acceleration, then once it's at speed, stops until I kick it making a turn. If your reply involves a big expense to fix this, I DO NOT what to hear it. Thanks in advance.

'73 BMW 2002 Targa
'91 MB 300D
'95 BMW 530i

Reply With Quote
Old 12-02-2000, 09:15 PM
Registered User
Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
You need a new center bearing support mount on the drive shaft.
Not to hard to do, not an expensive part [ $20 or so ]
and considered a DIY repair if your handy.
Reply With Quote
Old 12-02-2000, 09:45 PM
Posts: n/a
Thump, Thump Thump

Arthur: The babe and I thank you for solving our mystery. Kevin
Reply With Quote
Old 12-02-2000, 10:04 PM
Registered User
Join Date: Jan 2000
Location: New Bedford, MA USA
Posts: 1,583
This also might be one of the rubber "donut" couplings in the drivetrain. If these let go you will get that thumping sound as the driveshaft will not remained centered. Check them all..
Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.
Reply With Quote
Old 12-02-2000, 10:14 PM
Registered User
Join Date: Sep 1999
Location: SW Colorado USA
Posts: 296
Don't rule out a bad CV joint on one of the axle shafts. Still not super spendy, maybe a couple hundred bucks.
1995 G320
1984 280GE
1971 Unimog 416
Reply With Quote
Old 12-02-2000, 10:43 PM
Bill Wood's Avatar
Retired Webmaster
Join Date: Mar 1999
Location: Johns Creek, GA, USA
Posts: 5,013
According to Benzmac...
The diff mounts are known to make this kind of noise.

Bill Wood - Retired Webmaster
My Personal Website
1998 Mercedes E430
2010 Toyota Sequoia
My Photo Albums
Reply With Quote


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

Similar Threads
Thread Thread Starter Forum Replies Last Post
HELP with Knocking sound!!! psdsteve Diesel Discussion 6 07-20-2004 01:03 AM
knocking sound when AC on Tom 260E Tech Help 0 04-04-2002 10:50 PM
W126 Front Knocking Sound When Braking ... ymsin Tech Help 6 11-10-2001 12:43 AM
Knocking Solved. What was that Sound??? etsa Tech Help 0 06-27-2001 12:00 AM
Thumping Sound on 99' C280 FSP Tech Help 1 04-01-1999 11:21 PM

All times are GMT -4. The time now is 06:06 PM.

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