Rear end goes THWANG!!

[intruder]

My wife was backing out of the garage about 3 weeks ago and heard a loud "thawng" like a spring popped! The ride height is normal but, occasionally, when making a slow, tight right turn the right-rear makes the same sound. It's worse over speedbumps or dips. The mechanic stared at me like I had a third eye after he "could not duplicate" the problem.

I guess I'll wait until the problem gets worse. Anyone ever experiance this?

BTW, it's a 1998 E320T (wagon) with about 72,000 miles. It's always had a somewhat harsh ride (like it's oversprung or underdamped or both if that helps).


TIA,
Inrtuder