One car with a wobbling HB was a 2002 E320. Nice exterior paint, Texas car, no rust, sagging headliner and HB wobble. No service records for the 140K miles showing on the odometer. Seller was asking just under $5k and wouldn't budge. That has been the best deal I've found so far.
I suspect the headliner is a $400 fix. Then all new fluids, brakes, tires...
Does the '02 qualify for the HB recall?