I drive a 2004 Nissan Sentra.
After a 20-mile drive on the highway during which I used the a/c, when I parked in the garage, I discovered a leak of something like water -- a clear fluid from a drip in the undercarriage. the drip came from the underside of the car between the driver seat and passenger seat.
The manual says that "water dripping from the air conditioner after use is normal."
It is? Was that what I found?