well i have changed the thermostat and looked for leaks the radiator has been serviced 2 years ago should i re clean it. i have flushed it with radiator clean.

the water is evaporating from somewhere any ideas ?

its sitting on hot most of the time but sometimes doesnt and sits ok.

reverse flush the radiator. Mine was doing that too, after the new thermostat as well, so I took the radiator out, flushed it both ways, with hot water and cold 4 times till the water ran clear, then put it back in, new hoses and clamps and a new radiator cap. Now shes runs normal even when flat out on a 40 degree day. Turns out my radiator cap was causing the main problem. For an extra 50 bucks spent on hoses, clamps and a cap, its still cheaper than breaking down on the side of the road. Good luck!

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88 Rover 1.3i "Reggie"
99 Rover 1.3i “Grover”
12 Mini Cooper S "The shitter"
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