Having been the caretaker of a modern BMW for a span of eight years, I've grown rather vigilant about keeping fluids and belts where they belong.

My car came with a complete service history from the selling dealer, indicating two water pumps and one radiator replacement before I got it. Oddly, the coolant hoses were never changed. I can only assume the same was true of the heater control valve. Odd that a dealer wouldn't at least recommend the hoses. They were a little soft, and the return line was clogged. Oh well...