190E Driveline Vibration
 

Have a distinct driveline vibration noted at 38-45, then again at 58-70... All driveline parts look nearly new, and there is ZERO lash in the u-joint or cushions.. (no clunking... just an ANNOYING vibration)

Am looking for ideas on where to start...

Try searching the site for flex disc.

Alon

If it is the flex plate, most likely the front one, replace it soon. It is not hard to do, just takes time getting the exhaust and stuff off. If it lets go completely the drive shaft will flop around doing a lot of damage to the transmission tunnel and anything in it's way. I was only going about 10 mph at the time mine let go. Can only imagine what might happen on the highway if it were to let go there. I have heard of a lot of sheet metal being ripped. I could imagine that it could even hurt a driver or occupant if it happened to hit them! So change it before it goes if that is your problem. My car started vibrating when i let off the accelerator and finally went about 10 miles after it started vibrating.