Dear community, for some time now I hear an annoying squeak (or better say chirping) on the left front wheel of my c30. It only occurs when there are short bumps, so when driving over cobblestones, gulli lids, potholes (which I try to avoid of course) etc. Strangely enough, you can hear the noise even when you close the driver’s door (so as not to say “beat” or kick against the tire. Sometimes this noise is also not reproducible, so it simply disappears. The friendly one said he has never heard anything like that. I am grateful for any advice, because it is slowly annoying me…