Moin, first of all the data about the car: – Volvo V50 – 2.0 D – BJ 2006 – 130.000k KmNow to the problem: For about 3 weeks I have heard a “pocken” from the rear right when driving. At about 40kmh it starts to become well audible and the faster I drive, the louder/faster it becomes. I then looked at the tires and could not notice anything, but since they would have been up this year anyway, I bought new ones and had them raised yesterday. What else can that be? My ideas: – Wheel bearings –> that should be more crunchy, but my sound sounds as if you have a bump in the tire that produces a corresponding noise on the ground and in the vehicle at every turn. Also, it won’t get worse/better in curves – rim –> That should have been seen when the tires were balanced, or? – Brake disc –> Can such a thing happen from a minima, if necessary? l crooked brake disc coming? For me it looks good, but I don’t want to rush out anything, but I really don’t believe it. More ideas? I still tend to the wheel bearings myself, but videos at youtube show a different sound than mine. This page on the other hand: http://www.tipscout.de/radlager-defect_tipp_4933.html speaks of “comparable to the fast knocking of a woodpecker”, which would fit and also “Later the noises occur even at cur Vent-free ride.” Thank you very much for your help.