it does sound like freon levels could be low. it also could be a compressor that is getting weak. higher air flow with a weak compressor means the evap core cannot stay cold. best thing to do is throw some air con gauges on it and see whats going on.


e39
freon does not really lose cooling ability over time. what does typically happen is a small leak develops and you leak it out of the system. as far as PM tips for the a/c system there really isnt any. its just kinda...chasing the failure unfortunately.