My 06 TSX 5AT with +145,000 miles A/C started to have intermittent warm/cool/cold spells depending on how fast you were driving. The driver side was a little warmer compared to passenger side. Acura said the O-rings were bad and I was leaking refrigerant causing low pressure. They replace the O-rings and recharged the system for $290. Waiting to see if that was a fix or just a band aid.