I picked up my Manilla Beige 240D yesterday from the shop and drove it around again.

I think that the vibration is coming from the clutch. I don't know about bearing noise, it's hard to hear anything above the sounds of the OM616 .

However, the "wriiiir" "Wriiiiiir!" noise and vibration from the clutch as it gets to 3000+ RPM is pretty apparent.

So, for me (a novice mechanic), I think that the clutch needs replacing as something is out of balance, but I am unconvinced it is input shaft bearing noise. Even so, I have committed to buying the iron box tranny and will do so.

Sincerely,

Packman.

P.S. I checked my motor mounts very carefully, with engine running. They are just fine. No mushiness, no collapse, operating properly.

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83 240D - 4 speed manual - Manilla Beige
189K miles, Tachometer mod, cool wooden shift knob from PeachParts, CocoMats, Original factory paint, manual windows, manual sunroof. Starting to add AudioWrap to this car too!