We have a 2003 Disco that with 90K miles on it that we just picked up as a project. We've been able to get it running but it seems to be overheating as the reservoir is overflowing. I do know that the electric fan is seized up and needs to be replaced but the mechanical fan is functioning. The hoses all get extremely hot, but the radiator remains cool to the touch. I also think that we're getting some coolant in the oil. The engine runs fairly smooth but it has a definite mechanical noise internally as well, potentially valve noise.