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 08-19-2006, 09:52 AM
Registered User
 
Join Date: Apr 2006
Location: Minneapolis, MN
Posts: 13
Rear End Noise

Hi,
I've got an 1984 300D that's making some rear end noise. The wonderful da-da-da-da-da sound that gets faster when the car is moving faster. I'm fairly sure it's coming from the rear end, though not which side. It is sometimes loud and sometimes I cannot hear it, but it seems to be getting slowly worse.

I suspect it's either:

1. Tire Noise
2. Wheel Bearing
3. CV Joint\Axle

How can I troubleshoot this problem to determine what to replace? And is it OK to drive like this?

Thanks

__________________
84 300D "Soy Benz" - Soon to be WVO Conversion. 277K
Reply With Quote
  #2  
Old 08-19-2006, 10:36 AM
TheDon's Avatar
Ghost of Diesels Past
 
Join Date: Oct 2005
Posts: 13,282
does it make this sound when turning? if so then its one of the axels.. i get a clicking sound when i turn and its my right cv axel or w/e it is... ( i have 2 different types of axel, the old style on the left and the new on the right.. dumb ass previous owners) also check your brake pads, if you have the ATE a clip is supposed to be held in by two pins over the top of it... if the clip just falls out or easily comes out then their is your problem
Reply With Quote
  #3  
Old 08-19-2006, 10:56 AM
MattBelliveau's Avatar
Gotta another one...
 
Join Date: Jun 2005
Location: NE Ohio
Posts: 1,685
Does it happen regardless of wether you are accelerating or coasting?
__________________
1989 300E 144K
Reply With Quote
  #4  
Old 08-19-2006, 11:10 AM
t walgamuth's Avatar
dieselarchitect
 
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 37,995
more info would help such as a more detailed description of when you hear the noise.

but i am betting on cv joints.

tom w
__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
Reply With Quote
  #5  
Old 08-19-2006, 11:32 AM
Registered User
 
Join Date: Mar 2005
Location: SoCal
Posts: 660
center bearing
__________________
'85 300D Cal 280,000 miles
'07 C230 37,000 miles
Reply With Quote
  #6  
Old 08-19-2006, 08:22 PM
Registered User
 
Join Date: Apr 2006
Location: Minneapolis, MN
Posts: 13
Thanks for responding. The noise does not depend on whether I'm steering or how fast I'm going. Revs up faster with more speed, until it is overpowered by the engine noise, but back down at low speeds (decelerating or accelerating) I hear it again.

The noise will last throughout a trip, though some trips it is very quiet and some trips it is loud. Right away on the first backup out of my garage I will hear it (or not), and it will be the same for the whole trip.

I also suspect the CV joints in the axles. How can I test them? And what is a center bearing?
__________________
84 300D "Soy Benz" - Soon to be WVO Conversion. 277K
Reply With Quote
  #7  
Old 08-19-2006, 08:57 PM
t walgamuth's Avatar
dieselarchitect
 
Join Date: Apr 2005
Location: Lafayette Indiana
Posts: 37,995
put the car where it will be stable in neutral like level ground. put the car in neutral and reach up under the back and grab the half shaft. wiggle. if it moves that is not good. it should be very solid with no movement at all.

tom w

__________________
[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.
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 06:21 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