You are absolutely right. See my other post before where I saw essentially the same thing. It is absurd how bad the German companies are; the only thing they know how to do great is the engine.

I never understand these people with their ac knobs... What are they doing that they need to change AC all the time during driving?

I set it to 21.5 with auto, and it is perfect for the whole car. Why do people need to constantly change ac?!!