Hello, I’ve had a new Ford Focus Vignale with 235/40 18 full-year tires for a few days now. Model Kleber Quadraxer 2. So from 50-60 km/h always hears a whistling / howling noise. I was therefore at my dealer. We did a test drive. After that the car was on the lift. The workshop master said the noise would come from these thin rubber threads on the treads. If the worn out (have now driven more than 400 km) I should come back. With the cars before auc h GJR but never this noise. But were also other tire marks and whether there were these threads on it I don’t know anymore. So can the noise actually come from the tires? Thank you very much.