Hello. I had noticed such a strange sound for a few days with different frequencies. My first thought was that it could be a defective wheel bearing. This was also confirmed during a test drive by the BMW NL Düsseldorf. Today, however, during the workshop stay, it turned out that the distribution gearbox for the four-wheel drive is defective and has to be completely replaced. With just over 50,000 km of mileage and exclusive road use (no terrain) but this is a weak picture for the quality of the Magna Steyr components. The repair will take at least until Tuesday due to the fact that this part has to come from Munich, but at least I received a 3 Series Touring as a free replacement car, which I will now also use for a weekend trip to Switzerland. But actually the Countryman on the curvy mountain roads would have been more fun for me. Greeting, Wagonmaster