1983 300D Turbo , 1983 380SL , 1995 E320 , 1999 C43AMG, 2007 E350
My 300D has always had a bounce or vibration around 45 mph. It felt like a wheel balance problem but that was not it. I always suspected the drive shaft being out of balance, but decided to just live with it. After replacing the center drive support bearing the vibration was very evident from about 45 mph up to about 60 mph and it for sure felt like the drive shaft was out of balance. I read on the Net how to balance a drive shaft using a metal worm screw hose clamp and decided to give it a try. Thirty minuites and three test drives later the car is smooth as glass up to 70 mph......and beyond I'm sure. There is a little trial and error involved but no rocket science. This was well worth the $1.79 price of the hose clamp.