Moin, I urgently need the advice of Volvo experts. I drive a Volvo XC60 D5 AWD from 4/2009 with now 88,000 km completely without any problems. The car is maintained at Volvo Checkheft. For a few weeks I hear from the rear axle boom or running noise. Only very quiet. I changed from winter to summer tires because the noises are speed-dependent, slightly unround sound and I wanted to exclude sawtooth. The noise remained. I measured the track read The sound was now loud and mechanical within a few days. I drove to my Volvo dealer yesterday. Test drive: first diagnosis wheel bearing defective. In the evening the master called me and said the problem is a defective Haldex coupling. The repair, or rather the replacement, is not repaired at Volvo, should cost 10,500 €!!! Alone 9,500 € the Haldex part. Thus the car would be an economic total damage. Has someone also had this problem and Experience? What or how can Haldex be repaired? Does anyone know a gear or Haldex specialist in the area around Hamburg/North Germany? I have just read that Landrover has installed identical Haldex 4. I am quite eaten up and grateful for every tip.