Hello Ber31inger,
Promised to come back with some updates as I found out something
After several tests and reading values using VCDS and OB11 all the values appeared to be OK except the ones below:
1. Pressure in BAR (while running at idle) was low: 10 BAR ; 10.8 BAR (maximum recorded) - outside temperature when doing the test + 25°C
2. Left, Right and Foot temp sensors where not showing the same values (Left sensor had the lowest values- most probably because the Air Conditioning is going into the car from Left to Right- why I am saying this is because I switched the left and right sensors between them and same values => the sensors are OK)
3. Evaporator sensor was showing almost the same Celsius degrees as for the Left, Right and foot temp sensors - normally the evaporator sensor should record lower temperature like for this example: Temperature set on AUTO to 22°C, left,right and foot temp sensors should read 13-15°C while the evaporator 7°C (or even lower; close to 0).
Because of point #1 and #3, I realized that maybe I don't have sufficient refrigerant gas in the system and I went for a check. The outcome after this check was that I only had 150gr OUT OF 500gr - this might be the reason of low pressure and high evaporator value.
After completely filling the air conditioning system the pressure when to 11.5 - 12.5 BAR and the evaporator value dropped to 3-5°C and the air conditioning is making much more cold and much faster than before. (I didn't had a long trip since refilling so I don't know if my old problems still persist or not)
PS: In the past I also had the symptom of auto-closing the flaps (no air coming through the vents) but that was solved by changing the cabin filter
Hope this helps your investigation too
Cheers,
Florin