Just been out & checked mine, yep up to 5 bars fairly quickly. Put the scanner on it as well, 5 bars would appear to be 98c - 103c degrees in temp. Fan (my fan anyway) comes on at 103c degrees, runs for maybe 15 seconds and stops because the coolant temp drops to 98c. I did this running the engine on the side stand.
Incidentally, I also checked throttle body balance while I was at it, the 3 of them are exactly the same 520.35. They do vary when throttle is applied but settle back to the same very quickly. Happy as.