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      10-29-2024, 10:41 PM   #1
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Air not cold at night (AC OFF)

I usually have my windows down at night because I love the fresh cold air, but I was passing through the slums of San Francisco (Tenderloin smells like urine and feces) so I rolled them up. I figured I wouldn’t need the AC on since it’s about 58 degrees out and I had my recirculation off. Full blasting it with the temp selected at the lowest, 60, it was blowing pretty warm.. not as cold as it would be if my windows were down.

I have the face temp set all the way cold as well. Its weird because if I turn on the AC the air definitely gets colder. Is it possible the engine bay temps are just that hot that it mixes with the cold air not allowing the outside air to fully come in unaffected?

I don’t like having ac on too much because for some reason my car is prone to getting the mildew easily. I usually shut ac off but keep the fans on 5-10 mins before getting home to get rid of any moisture still in the vents.
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      10-30-2024, 07:03 AM   #2
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In cars originally designed with AC in mind there is difficult to get fresh air in with ac off. Turning it off before parking is a thing of the past. Just let it run always.
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      10-30-2024, 10:55 AM   #3
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Just because the button is on doesn't mean the compressor is actually running. I also find the same thing, the cabin gets quite warm without the button turned on.
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      10-30-2024, 12:35 PM   #4
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Older BMWs used to have the Red/Blue dial on the dash which brought in hot and cold air depending on the position. It is now digital in the A/C menu, you may want to look for it and set it accordingly.
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Last edited by CenCal X3M Comp; 10-30-2024 at 12:49 PM..
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      10-31-2024, 05:14 AM   #5
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Quote:
Originally Posted by CenCal X3M Comp View Post
Older BMWs used to have the Red/Blue dial on the dash which brought in hot and cold air depending on the position. It is now digital in the A/C menu, you may want to look for it and set it accordingly.
First sentence of 2nd paragraph:

Quote:
I have the face temp set all the way cold as well.
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      10-31-2024, 07:58 PM   #6
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Quote:
Originally Posted by Th3Walrus View Post
First sentence of 2nd paragraph:
When you said face temp even I thought you meant the one that faces you, which is the numbers, not the MENU adjusted temp. No the engine will not eat up air as it comes in because it is moving to quickly in ducts around it, if you are idle, possibly, but moving no, it should be near the outside temp +/-5 degrees.
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