Peugeot 206 1.9 diesel air with air

Hello everyone. The car is a Peugeot 206 1.9 Diesel 70 hp year 2004.
The consultation is whether anyone knows if the temperature of my car is normal. It turns out that when the air conditioning turns on the coolant temperature reaches the line following the 90 degrees, which I estimate are 100 degrees. When I turn off the air the temperature lowers and is around 90 degrees. The electrventillator turns when the temperature reaches half between the line of 90 and 100 degrees, would be at 95 degrees. Thank you !!

Hello friend, the normal temperature is around 95º, the electrventilator must attach to the 93º and when you turn the air it must be attached and kept on while the air works, it controls the thermostat if it works well, tell us how it goes, greetings.

I did the A/Ay test see if the electro goes out over the course since the temperature rises from 90 degrees to 100 degrees and I observe that the electrventillator does not go out and the temperature is maintained at 100 degrees. When the A/temperature turns off, it begins to descend up to 90 or 92 or so (very heat day). I did this test not walking but regulating at the door of my house after using it 30 minutes.
Another fact is to observe the temperature bulb and have some liquid in the thread part, I do not know if it is normal.
At no time is the Stop witness turned on.
The refrigerant is at its correct level. Wander brand yellow.
What I have left is that it is the thermostat or the covered radiator. What tests can I do to know what it is?
Another thing, when I turn off the car the electro also goes out, should not continue walking until the temperature is lowered to 90 degrees?
I attach some photos:
Bulbo with refrigerant liquid:



TEMPERATURE WITH A/A PURPOSE:


Radiator:



Thank you already for the help