A/C refilled, and water temperature seems a bit high

[hk20000]

hey guys.

Summer is coming along nicely and I went to refill up my A/C system (it blew only a bit cool before) and it blows cold now... but during the mechanic pumping in the freon I see the water temperature climb to 100C and stays there.

it's kind of scary to look at the gauge although the redline is 120C.....

he was only idling the car and occasionally running the revs up to about 1500rpm to pump the freon around.... the A/C was pumping nothing cold when the water temp is at 100C as well....

I drove it out of the lot and did some quick sprint around hitting 100km/h and the water temp falls back to like 80 or so and the cold air started coming in with A/C put at "LO" and "Auto"

is this normal phenomenon? Another worrying thing is the A/C fan does not run at 100C it starts running quite a few minutes after the water temp is at 100C...... is there anything wrong with my A/C fan thermostat?

car is a 1995 C220 w/ 215000km btw.