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 ShopForum > Technical Information and Support > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-07-2003, 01:17 AM
W202 AMG
 
Join Date: Dec 2001
Location: Cocoa, FL
Posts: 67
Rear-Diff problem W202

After my side seal was leaking I went to have it replaced and this is what they found
Attached Thumbnails
Rear-Diff problem W202-msreardiff.jpg  
__________________
'98 C280 White on Tan

-=Santa Bring me a C43=-
Reply With Quote
  #2  
Old 08-07-2003, 01:18 AM
W202 AMG
 
Join Date: Dec 2001
Location: Cocoa, FL
Posts: 67
Any ideas on why this occured?
Attached Thumbnails
Rear-Diff problem W202-msreardiff2.jpg  
__________________
'98 C280 White on Tan

-=Santa Bring me a C43=-
Reply With Quote
  #3  
Old 08-07-2003, 08:48 AM
JetForeman
Guest
 
Posts: n/a
It could be one of a number of things that could have caused that. A weakness or flaw in the ring gear during manufacturing looks like the most reasonable explanation for a small chip to be broken away like that.

Usually if a rear-diff experienced a severe shock (like spinning on ice then suddenly hitting dry pavement, or accelerating hard while hitting a bump) it will clean out a few more teeth than that. I don't think anyone will ever be able to tell you though exactly what happened unless you were to take it and have it x-rayed for any kind of metalurgical weakness.
Reply With Quote
  #4  
Old 08-07-2003, 09:01 AM
Moderator
 
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
That is the MOST common failure on the 185MM differential. Very simple to install new differential carrier with the right tools. The casting of the carrier is much softer than the cross-pin for the side gears.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
Reply With Quote
  #5  
Old 08-08-2003, 02:43 PM
JetForeman
Guest
 
Posts: n/a
M.B. Doc

you state this is common on this type of rear-diff. Is the same true for the one in my 00 C230? I'm not sure if the 98 280 and my 00 C230 have the same rear-diff. And is this common enough that mercedes has looked into it for a manufacturing process flaw or perhaps a TSB?
Reply With Quote
  #6  
Old 08-08-2003, 05:56 PM
Moderator
 
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Differential failure is VERY low, so when I say failure rate is high for that type of problem maybe 1 out of 20,000.
I have repaired 8-10 differentials with that exact problem.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES)
ASE Master Technician
Mercedes Benz Star Technician (2 times)
44 years foreign automotive repair
27 Years M.B. Shop foreman (dealer)
MB technical information Specialist (15 years)
190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
Retired Moderator
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 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page