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Definitely not normal. How's the airflow to your radiator - anything blocking it such as a number plate?

If not, I'm wondering if your cooling system has a blockage, or if the coolant needs changing.

Based on that, I'd be inclined to think it's either your radiator or water pump. My money's on the rad having a partial blockage.

Acording to the data log from the last wakefeild day where my Temp gauge showed 3/4 to full between 115 & 125 deg C
And have had no Ill efects after that day