Precondition/Ventilation

john1200c · 07-22-2021, 11:59 AM

Quote:

Originally Posted by Stoshu

My 2021 X5 M50i has a fan run for ~5 min after I turn off the engine. I’m not sure if this is to cleanup the AC or to cool the engine but I’ve never had an oder problem (well except wet dog) in eight months.

I could be wrong but I think that is for engine cooling as the sound emanates from the radiator area....

BobsM3Coupe · 07-22-2021, 08:13 PM

Quote:

Originally Posted by john1200c

I could be wrong but I think that is for engine cooling as the sound emanates from the radiator area....

That's what that sound is. It's cooling off the twin turbo's on the V8.

10101X5 · 07-23-2021, 12:31 PM

I decided to run it at the end of my drive yesterday. I have engine start unchecked. I walked out, locked the car, came back, looked in to check and saw everything was off with the fan sign running. My question is will it stop on its own or we need to shut it off? It doesn’t look like there’s a timer option unless you start from the app. Thanks.

YuicyYumboYack · 07-23-2021, 12:47 PM

Quote:

Originally Posted by 10101X5

I decided to run it at the end of my drive yesterday. I have engine start unchecked. I walked out, locked the car, came back, looked in to check and saw everything was off with the fan sign running. My question is will it stop on its own or we need to shut it off? It doesn’t look like there’s a timer option unless you start from the app. Thanks.

It will stop on its own, but not sure of exact timing. I believe it's something like 20 minutes.

RoxieDB · 05-15-2023, 10:41 PM

Post drive preconditioning is great is you want to leave pets in car when you run in store. It keeps AC running and no dead critters in your back seat when you get back

swainbmw · 05-16-2023, 02:18 AM

Quote:

Originally Posted by Timmer-Bimmer

I get that screen at the end of a drive, when I put it in park and then power off. I assume it is a placeholder screen while the radio, massage, and ventilation keep working until I open the door. Once I open the door, everything turns off.

So you get the preconditioning when the car turns off so in case you’ve got passengers in the car you can hit preconditioning the car will restart and the AC will run until you get back

jad03060 · 05-17-2023, 03:36 PM

THere's a time limit on how long the HVAC will continue to run. There are also differences between the PHEV and the mild-hybrid versions about what works and when. The PHEV never runs the ICE when preconditioning. As implemented, the other versions must, unless it's just the mode to blow air through the heat exchanger, extracting what it may have left as residual.

07-23-2021, 12:31 PM	#47
10101X5 Captain 465 Rep 792 Posts Drives: 10101X101 Join Date: Oct 2012 Location: USA iTrader: (0)	I decided to run it at the end of my drive yesterday. I have engine start unchecked. I walked out, locked the car, came back, looked in to check and saw everything was off with the fan sign running. My question is will it stop on its own or we need to shut it off? It doesn’t look like there’s a timer option unless you start from the app. Thanks.
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05-15-2023, 10:41 PM	#49
RoxieDB New Member 8 Rep 5 Posts Drives: 2021 X5 X40i Join Date: May 2023 Location: Orlando iTrader: (0)	Post drive preconditioning is great is you want to leave pets in car when you run in store. It keeps AC running and no dead critters in your back seat when you get back
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05-17-2023, 03:36 PM	#51
jad03060 Major General 3166 Rep 6,805 Posts Drives: X5 45e Join Date: Aug 2018 Location: NH iTrader: (0)	THere's a time limit on how long the HVAC will continue to run. There are also differences between the PHEV and the mild-hybrid versions about what works and when. The PHEV never runs the ICE when preconditioning. As implemented, the other versions must, unless it's just the mode to blow air through the heat exchanger, extracting what it may have left as residual.
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