What was the cause of the bent rim? I usually put my money on a crappy balance job when it comes to vibrations.

Had a vibration in my SE a few years back. Had the tires balanced 4 times, at 2 different shops. Finally a third shop got it right.

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'90 300SE 298k
-300K and it gets put into retirement.
'80 300D 255k Purchased new by family in 1980.

Had a:
1973 220 (gas)
1980 300SD
1992 400E