Noise shock absorbers

Sorry to open a noise-threat again. Unlike the cracking of the seats, vibrating the doorpins and the noises of the doorpanos, it seems to be technical in nature: with every smallest unevenness, with each Gulli cover comes a noise from the area of the wheel boxes. But I can’t exactly say whether front or rear. It’s hard to describe how it sounds. A low tone, no grinding or clapping, rather like if something would bend slightly. When maneuvering on the mountain, the noise even drowns out the radio, which causes me a bit of worry. Quite quietly, the noise was always there, which meant a good year ago that it was the twisting of the carros series, especially on the mountain, and the noises were therefore normal. But the noise became significantly louder this weekend within two days, today the passenger also addressed me as to whether something with the suspension was present. What do you think? Weathers in the last days was always the same, the S40 had no contact with exactly other vehicles, so it didn’t have a nice wound.