Quote:
Originally Posted by toxic_bimmer
- some rattling noises developed over last months, coming from the back/trunk area, although its empty;
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I hear all kinds of weird noises from the cargo area of my 2015 X6. I first thought that there was something loose in the trunk BUT all was fine. The noises (mostly squeaking and rattling) come and go, but mostly appear on rough surfaces, especially city pavement. My guess is that all these noises come from all the hinges, rails and locks that fix/hold back seats in place and the cargo cover railing in X6 case. My theory is that the structural rigidity of the back part of any SUV is less than that of in the front part due to wide disconnected opening behind the back seats (floor and roof only and no midsection connection), hence all the vibrations and micro deformations of the structure make the metal and plastic parts move more than desired, thus causing the metal and plastic parts make these annoying noises. But this is just a theory.