Overheating Mini One (again)!
Lots of threads on overheating Minis - but I've yet to hear this one.
My grandson and I bought this '03 Mini One with an overheating issue. We've replaced the headgasket, fitted new thermostat housing/thermostat and cap (twice - as the first cheapo ebay replacement cracked). We've researched the dreaded 2-stage fan/resistor issue, however our problem is a little different.
Using the test menu I've monitored the water temperature and when the temperature reached 95 degrees, the water boils. Now I know the fans shouldn't be switching on at this temperature. It should be OK, but it's not. The only thing I can think is that the system is not pressurising to raise the boiling point of water.
Oh yes, we've bled the system (at 3 points) till we're blue in the face!