2007 BMW 328xi Air Conditioning stopped working

What is your question?

A low grinding noise coming from the front vent with the AC on and is working, the grinding noise from the vent has no stopped and no cold air is coming out. What could be the problem?

What makes this problem better or worse?

Noise is there and AC works, no Noise just cool air comes from the vent NOT COLD just

How long has your 2007 BMW 328xi had this problem?

A few days