If u listen to the car. It doesn't turn the a/c for a few seconds after the engine running. Also the computer for the climate control doesn't start up until a few seconds later as well. Trust and believe on this car the engine does not have any strain from the compressor when u hit the button

 

So one last time.... If the engine it on and the a/c and compressor are running and I turn off the engine and restart it. At what point do they disengage by it's self when restarting the engine?

 

It probably dis engages when u hit the stop button

 

I honestly haven't tried it.. Developed habit over the last 10 years or so of driving..

 

I've always left my a/c on. I have the auto climate control feature too so when I start the car, the fan does not come on right away. It takes about 3-4 seconds for it to spin up, steadily, so it doesn't blast me in the face with hot air.

The a/c starts blowing refrigerated air a lot quicker than my previous cars did.

 

I leave it on AUTO year-round. when you start the car, the A/C doesn't immediately start till you see the INFINITI logo on the screen, so I don't really see a problem. I didn't bother turning it off in any cars I've had and never had a problem, but everyone has different opinions on this. At least on the 37 it's useless to turn the AC off I think. I don't get any smells or mold issues and I run the AC all the time. Just my .02

 

The A/C removes moisture, so turning it off is going to put more moisture in the pipes, unless I am missing something.

 

I've done this with forty five years worth of cars, and have never had the musty odor problem with any of them, so yes - I think you are missing something.

 

45 minutes or 45 years, it doesn't matter. It's the physics of a refrigeration system.

Key step in the procedure solidsilver uses is to keep the fan on without the A/C on. This forces air passed the evaporator coils which allows the moisture to evaporate. If one turns off the A/C system AND fan(parking and turning the ignition off), no air is allowed to pass the evaporator. The evaporator is in a dark, secluded, and scary box. Any remaining moisture will allow mold, mildew, and monsters to grow smellier and smellier. And no one likes a smelly monster behind their dash.

The main distinction, jpg37, is the elimination(or near elimination) of the moisture on the evaporator. Yes, the A/C system will remove moisture from the area being climate controlled, but a side effect is condensation on the evaporator. The removal of that condensation is the purpose of this technique.

I follow the same procedure as solidsilver, and it keeps things relatively fresh. Roll the windows down about half a mile from home, turn off A/C, turn on fan, and turn off recirculate(it works REAL fast on a summer day in San Antonio).

 

All those years I knew it worked, I just never had a clue as to exactly how - I appreciate the explanation.