1989 Mercedes Benz 560SL Base 8Cyl5.6L - Transmissions & Drivetrains
Car develops a vibration in engine or transmission area when engine is accelerated to 1900 rpm's.
Auto begins viabrations appx. 1,900 rpm until 2,400 to 2,500 rpm's. The viabrations develop whether static or moving. SL 560 has 160,000 miles. Runs very good. In effort to stop viabrations, mechanics have replaced engine mounts, universal joints (?) and have suggested other things such as exhaust system (?) and something in the transmission. No one , that I have talked to, really seems to know the problem. Other than the viabration, car drives, handles and rides well. Any help will be appreciated. Thanks.