When doing longish trips recently….over 1hour….after about 1 hour hot air starts mixing with the cold A/C air that comes through the front vents even though Air con is on and the temp dial is set to cold for the front vents
Cold A/C air still comes through the other vents.
Once the engine / car has cooled …for example overnight…the problem goes away

I am thinking there is a problem with the blender ?

Any thoughts ?

Think the answer is here:

https://www.fullfatrr.com/forum/post673747.html