A/C blows warm at times on 2004 Audi TT

Air Conditioner works well sometimes, sometimes blows warm. Looked like fan control module under battery, but not sure

by in Los Angeles, CA on April 04, 2011
1 answer
ANSWER by on April 06, 2011
A/C systems have numerous components, needs qualified shop with proper equipment to test, recover refrigerant and charge system. Sounds like system is low.