Rear clunking?
Everytime I go over a speed bump or something similar, it sounds as if my entire rear is being lifted, then dropped.

E63 Biturbo, UPD Cold Air induction kit, UPD performance crank pulley and UPD adjustable rear suspension with ride height adjustment.
CL55 UPD Cold Air Boost kit, UPD 3000 stall converter, UPD 77mm SC clutched pulley and beltwrap kit, Custom long tubes, UPD crank pulley , UPD suspension kit, UPD SC pulley, Aux. HE, Trunk tank w/rule 2000 pump, Mezeire pump, UPD 5pc idler set, Aluminum rotor hats.
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In my car, it is both air bellows that are making the same identical noise you describe. As per my local mb dealer, this is a very.common problem and can only be fixed by installing new air bellows.
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