Hello together, XC 90, first registration 03.2005, one week after delivery phone defective. Stand by in the workshop until troubleshooting 1 week. Then up to approx. 15,000 km except the usual flap noises nothing, then low cooling water loss. Diagnosis after several days in the workshop: no error to find. At approx. 23,000 km again alarming “cool water loss”, now the diagnosis exhaust gas in the cooling water, cylinder head damage. Volvo rejects warranty, because Heico Chip. Heico picks up car, replaces on warranty head and seal. Duration another week. According to Heico. Damage can not be returned to the chip. Car comes back, dealer does not come to drive it again sample and passes it to me. I drive 500m, noises on the rear axle, car goes back to the dealer, diagnosis: both wheel bearings defective at the rear. KM-stand now about 25,000 (three zeros!,not 4). Before the XC 90 I have driven over a period of about 10 years, and perhaps 300,000 km 3x540i. The workshop time for these cars can’s together do not belong to the joy.