Well, I replaced the rear strut mounts on my car yesterday...much easier job than I had thought it would be. Kudos to e34.535i.sport for his excellent write-up he posted a few weeks back. They didn't look near as bad as his. The loud clunking coming from the rear shelf is gone, but the odd occasional pinging sound is still there. I'm kind of at a loss now on what it could be.
The pinging sound occurs at very low speeds on uneven surfaces when the car body is rocking left to right. I have replaced: strut mounts, subframe bushings, dogbones, and the swaybar links. What's left? I have not done the trailing arms or the differential mount. Could it be them or am I missing something painfully obvious? I'm open to suggestions. Thanks all!