We've driven a lot of Volvos over the years, and the 2004 has the worst reliability by far. We're very disappointed that we had to replace the radiator and rack and pinion steering at 82,000 miles. These were very expensive to replace, and there's no reason that either should have failed before 100K miles. Currently the steering wheel buttons that control the stereo are frozen. The gas gauge also swings wildly from 1/3 full to empty when the vehicle is low on fuel. This car is a heap of problems.