Moin, yesterday I painted my brake calipers black out of boredom so that they don’t look so gammelig anymore. well and when I had bolted the wheels on again and drove the following thing was obvious to me….. Man hears such a kind of WUMMER CLOCK when you drive. It just makes wooowooowooow. not very loud but you can hear it! I don’t know if that was the case before painting. because I mostly drive on radio and there I didn’t notice that! From painting can’t the noise come, can it? I tightened the wheels properly again! It’s 100% not! But I noticed that the tyres already have a light “saw tooth”, especially at the rear of the axle! And since I put the summer wheels on it (since mid-April) I have driven on these about 6000 km!(The tyres were changed when delivery was possible!) Is the noise on the saw tooth? or does it come from somewhere else? Did any of you ever have something similar?