the figures for the radiator fun if you mean the temp that it starts working(sorry for my bad English)is wroten on the temperature switch locate on the radiator normaly is 92c for the first scale and 94c for the second
the car thermostat must open at 87c.
so you must do those tests to the cause.
1.from fully cold car
start the engine on idle speed -900rpm
open the car bonnet and see the engine thermostat(the thermostat located on right hand side of cylinder head. in between engine and the battery. It has about 5 hoses coming out of it. The main hose going to the top of the radiator)
put your hand on the main hose it must be cold
the thermostat is opening at 87c not before not after when is open the main hose is going to be hot in the moment(very very*little time from cold to very hot so you not can stand your hand on it)
in this point go to see the engine temp if it is not 87c(90c-2mm)you have problem with the thermostat.may open in hier temp (90c+)replace the thermostat with no other words
2.if the thermostat is ok-
check the temp that fun if start working
1 stage 92c
2 stage 94c
if those values is hier see at top left side of the radiotor you will see two wires going to the plastic cover and a little cover with two srews
take of them and you will see a inductor resistance it is very cheap change it (it may be burnt or it looks burnt)
if the problem still exist
you must change a small chip in ac control unit
this one is litle difficult to find it as part and to expensive.icant find one for you if you going to need one(and of corce cheaper).
this chip change the values of the temp ****ch (92c-94c)when you use the ac.
1.the oil temp is out of regulation so you can not
say what is the right temp for this
just have in mind that:when you run ac the oil temp is up(100c-110c)don't worry it is because the engine load is bigger
ill be happy to help you for everything you wont firstname.lastname@example.org