v70 poltern rear

in the absence of the search function again a constant recurring question: after the last inspection I heard a slight pollen. thought first, they did not really tighten the replacement wheel. or left something in the back. but nothing there. it sounds like if you want to wash the fridge from the corner alone. this funny noise, which then makes this stuff with the cool fluidity. only a little quieter and duller. is especially to hear with slight floor waves, which do not cause a stiffened roll-off noise. now the question: what is this??? original question, I know. … and immediately comes back with the *pssst* ge’s and so. quite funny however, I don’t find that very good. so somehow not? any ‘ne idea? oh so. for all those who do not know it (more): v70 d5 automatic my02. thank you.