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 05-13-2007, 05:07 PM
Registered User
Join Date: Oct 2001
Posts: 226
New Flex Disk too hard?

I had my front flex disk replaced a few months ago. Since then there has been a vibration in the driveline under medium to high load. The tech who installed it checked the driveline for play, looked at the rear flex disk and support bearing. All checked out. Installation was apparently correct as well. They changed out the transmission mount with my permission without any better results. Had another tech check it out and he checked the whole driveline and now suspects the flex disk that was changed is of a harder/stiffer material. I accepted it but am now wondering. Does anyone have thoughts on the problem and the theory of the cause. Is the difference between the front and rear flex (as the rear one was not changed and is technically apparently still good) possibly causing an imbalance? Does anyone think changing the rear flex disk to the same as the front will stabilize the drive shaft given that apparently everything else seems to be ok? Thanks.
Reply With Quote
Old 05-13-2007, 07:33 PM
Carson357's Avatar
Join Date: Aug 2006
Location: San Diego, California
Posts: 1,115
did they seperate the driveshaft at the center support bearing? if they did they mat not have it indexed correctly. they are balanced in a specific location, if it is off it will vibrate, or they may have used an incorrect transmission mount, maybe too high or too low?
1967 250 S
1967 280SE
1968 250S
1971 280 SE
1973 220
1974 280 S
1975 450 SEL
1976 220 D
1979 300SD
1983 300 SD
1985 230 TE euro
1986 280SL
1986 500 SEL euro
1986 190E 2.3
1990 300 SE
2003 C230 K
2004 C230 K
1987 560SEL
1987 300SDL now in canada
2005 C230
1998 C43 AMG Sold to DON
1993 190E 2.6
300TD Former daily driver Totaled
R320 CDI
Ram 2500 Cummins
Reply With Quote
Old 05-13-2007, 07:38 PM
Registered User
Join Date: Aug 1999
Location: Florida / N.H.
Posts: 8,804
The cars driveline has to be rolled back and fotrth a few times to self align/settle before tightening the tans mount, center support, and shaft spline cinch nut. This can not be done on a lift that lets the suspension/differential hang..
Reply With Quote
Old 05-13-2007, 11:19 PM
vwbuge's Avatar
Registered User
Join Date: Sep 2001
Location: Johnstown, Pennsylvania
Posts: 2,101
Double check the center support bearing. I had similar vibes on mine. I replaced both flex discs and the center support bearing AND mount. The rubber was worn in the mount and was not that noticeable. Everything is fine now.
'85 300SD (formerly california emissions)
'02 Jeep Grand Cherokee Limited
'04 VW Passat W8 (6spd manual) SOLD!!
'68/'69 Empi Imp body on '65 Beetle pan
'93 Ducati 900 SS
'79 Kawasaki KZ 650
'86 Kawasaki KX 250
'72 Triumph T100R
'70 Yamaha R5 Rat Bike
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

All times are GMT -4. The time now is 05:51 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, 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