2021 audi A6 A/C

Question

In hot weather (Florida) a/c makes a puffing sound every 2 seconds and even after engine turned off

Answer 1

Could be just refrigerant making the noise when it moves through the evaporator or orifice tube. I also get constant sound when AC is on like gas is leaking/moving through the tubes in my car. When I turn off the engine, the sound keeps coming for a few seconds.