MY BMW is blowing out warm air from one of the AC vent

[jondbond]

the driver side AC is doing OK but the passenger side AC is blowing out warm air what should i do

[bimmerguydxb]

the air conditioning will blow cold air from the drivers side and warm from the passenger side if the charge is low so it might be an indication of low refrigerant charge,

It is recommend that you test the low and high side pressures the ambient conditions (temperature and humidity) and compare them to the chart number that is available at the workshop.