Noise is still around. It kinda went away for awhile, but now it is back.

It sounds like a thin wooden board rattling over bumps, and as the cars weight shifts to the back passenger wheel.

When I go over a speed bump I get a terrible chasis rattle ( I don't think it is the sway bars, cause I just replaced them, It is not the vaccuum pod, it is not the spare tire, or jack or the inner black plastic lining on the side of the trunk.

I am thinking it is suspension, or springs in the back, but I have read here that they are very robust in MB's and will last for freaking ever.

Could it be the hat deck, or something in my pillar between the side glass (rear) and the rear window. I do have some interior pieces coming apart in that section between my rear window and the side window (coupe half window for the back seaters)

Input, thoughts?

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85 300CD Turbo "Das Polluter" 230K sold for $3,000

98 BMW 323is