overheating

Hi everyone! I have a Hyundai i40 2014 Tourer Diesel. Recently, I picked her up from copart and I noticed that the coolant in the reservoir (not radaitor) was above the F. Also, the cars temperature would spike on sharp turns (roundabouts). When I was driving back on the motorway, I stopped...

All of a sudden out of the blue, with no warning, the engine went hot. I was able to pull over immediately, the only reason I noticed, was because AC stopped cooling, could hardly see the warning indicator. I had a friend that was meeting me pop the hood. Nothing seemed out of ordinary. No...