New CAT at 179K. Needed new servo for brakes at 190K. Watchout for leaks in steering the whole rack has to be replaced and it's a very expensive job. I just kept topping up the fluid.
Needed to replace the oil seals at 182K, very expensive, but it did not run dry on oil which would have been a nightmare.
Overall a remarkable car. The work I did was not as a result of poor quality parts. They were replaced after 180K. To be fair no real work was done to the car until it got to 180K. When I sold it close to the 200K mark the clutch was starting to slip. Amazing that the shocks were original and it drove remarkably well for the miles.
Fuel economy is not good and the parts are too expensive. I don't know how volvo can charge the prices they do? Rip off!
You answered your own question! Volvo can charge too much for their bits, but as your 180K miles show - they last well. No cheap bits!