Hello everyone, my mother's 2012 BMW 535i Xdrive has around 55k+ miles on it and has told me that she noticed the A/C doesn't seem to be operating correctly as she mentioned the air doesn't come out cold but slightly warm though not hot. I did check that the freon level is correct and to factory spec and the A/C clutch is engaging. I would like to get your advice or suggestions on what this could be as I'm more knowledgeable about Nissan/Infiniti vehicles than BMW vehicles. I am willing to check anything else that is suggested that I may have missed.

 

Heater valve may be malfunctioning

 

What DTC codes are you reading?