I have a slight vibration in the drive train of my '92 190E 2.3 when applying power. It goes away when I coast (take my foot off the gas). The vibration is speed sensitive -- i.e.: the faster I go, the worse it gets.
A search of this site points to the following items as possible culprits:

1) Rear Axles
2) Flex Disks
3) Center Bearing

Have I overlooked anything? Does anyone have any further insight on diagnosis? Where should I start?

Thanks in advance for your help.

Jeff Pierce

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Jeff Pierce

Current Vehicles:
'92 Mercedes 190E/2.3 (247K miles/my daily driver)
'93 Volvo 940 Turbo Wagon (263K miles/a family truckster with spunk)
'99 Kawasaki Concours
Gravely 8120
Previous Vehicles:
'85 Jeep CJ-7 w/ Fisher plow (226K miles)'93 Volvo 940 Turbo Wagon
'53 Willys-Overland Pickup
'85 Honda 750F Interceptor
'93 Nissan Quest
'89 Toyota Camry Wagon
'89 Dodge Raider
'81 Honda CB 750F Super Sport
'88 Toyota Celica
'95 Toyota Tacoma
'74 Honda CB 550F

Last week I had a loud bang under the shifter while driving. I thought I ran over something. At the next light i noticed that when I hit the gas the car shook until I let off or until i got into 3rd gear. After a nervous drive home I found a had broken 1 of the 3 bolts that connects the drive shaft from the trans to the flex disk. Found 1/2 of the bolt stuck into the body above the disk. Replaced the bolt and all is well.