Sounds a lot like either flex disc or center carrier bearing mount or something else in the drive shaft. 50k miles on an aftermarket flex disc is a reasonable life if a little on the short side - did you get OE or OEM?
-Max -----Original Message----- From: mercedes-boun...@okiebenz.com [mailto:mercedes-boun...@okiebenz.com] On Behalf Of Ralph W Sent: Thursday, December 09, 2010 8:07 PM To: Mercedes List Subject: [MBZ] Violent shudder Hello All, Sorry for the long absence from the list. I haven't had much time for the diesel fleet the last few years due to extended overseas work assignments. I also moved recently and had to clear out the parts cars. Things are back to normal now and I have started driving the old coupe again ('83 300CD). The car has developed a very violent shudder when accelerating between 5 to 20 mph under a reasonable load. Above 20 mph everything is smooth again. If I accelerate very slowly the shudder is also not noticeable. It feels as if something is banging in the area of the center console. The vehicle is currently at my Indy for a new exhaust system. That has been installed and can be ruled out. The drive line was also overhauled about 50k ago with the flex discs and driveshaft hanger bearing replaced. Indy also put the vehicle up in the air and accelerated the engine and could not reproduce the shudder so the engine has to be under load. The engine mounts do not seem to be in too bad of shape but haven't been ruled out as the cause. Indy has had numerous friends check the car out as they visit and nobody has come up with a clearcut solution yet. Vehicle was also driven in reverse at a fairly high speed without experiencing the condition. Has anyone experienced this condition before? We are hoping to pinpoint the cause before randomly starting to replace components. It's almost x-mas and I'm trying to keep the finances in control. Thanks in advance. -- Ralph Wasserbaech 2001 E320 wagon 1983 300CD _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
