[magbarn]

Is this your first BMW? There's a separate vent setting that adjusts the vent temp. Read the Manual lol...
When you go to Max AC it overrides both vents to max cool. The vent temp setting is SEPARATE setting from the temp setting on the dash

This should become a sticky lol...

Of course the A/C setting should be on also. The A/C setting is separate from the menu setting even though it's the same button. Pushing up goes to menu, pushing down turn a/c on and off.