After 2 hours of spirited driving with AC on in hot weather, parked the car in a relatively cool garage. Came back in 15 minutes, water appeared from under the engine (left side if standing in front of the car). Looked clear. Is that AC drain? If so, is that normal or dealer inspection time?

Thanks in advance.

 

Very normal. The evaporator is still cool after you shut the car off. condensation will form and then run out the drain hose. Don't worry about it.

 

The higher the relative humidity levels, the more condensation you will have from the condensor. One way to avoid a large puddle is turn off the compressor when are about 4 or five minutes from your final destination. That allows most of the condensation to be complete before you shutoff the engine. Ever noticed a lttle bit of vapor coming out of your vents with the AC on? That's because as the compressor cycles on and off, some of the condensation that collects on the evaporator coils will vaporize during the compressor "off" cycle and gets blown into the car. Sometimes, in periods of very high humidity levels, I get several large water droplets dripping out my lower vents.

 

The condenser is under the hood in front of the radiator. The Evaporator is inside the car.