Ac blowing hot air

bmtespar · 07-21-2018, 09:22 PM

Does anyone else notice at times the ac system just blows hot air for about 5-10 seconds? It’s like in auto mode it gets confused. Anyone else?

RocketRomeo · 07-22-2018, 03:44 AM

Yep... more like 30 seconds

Sea-Tac · 07-24-2018, 12:17 AM

Mine does it too. Maybe 15 to 20 seconds. Then it cools.

Ragnarkov · 07-24-2018, 12:50 AM

The only time I've noticed this is when it's been sitting for a while. And in that scenario, it's just flushing the hot stale air as the compressor starts to cool. If I've been driving with the AC on for a while, it starts blowing cold air almost right away.

bobbylechat · 07-24-2018, 04:05 AM

i find the AC to be way less efficient than the one in my previous cars, i have to increase the level significantly in order to actually feel cold air

MarkyM · 07-24-2018, 05:34 AM

Quote:

Originally Posted by bobbylechat

i find the AC to be way less efficient than the one in my previous cars, i have to increase the level significantly in order to actually feel cold air

It maybe worth getting that checked out, it's 26 degrees C here today and have been out with climate set to 18.5 and intensity set to 2 and it was all nice and cool, I am surprised at how quick it cools down in the heat we're having here at the moment

Zembla · 07-24-2018, 05:48 AM

Quote:

Originally Posted by bobbylechat

i find the AC to be way less efficient than the one in my previous cars, i have to increase the level significantly in order to actually feel cold air

Yeah that doesn't sound right. There was a thread about people with the same experience as you. The consensus seemed to be that the car should actually be capable to keep you plenty cool - most people who experience what you are describing had some kind of malfunction, leak or freon shortage.

bmtespar · 07-24-2018, 10:37 AM

My car actually does a great job of keeping me cool. It’s just at some point, the ac blows hot air for a short period of time before going back to blowing cold air.

Ragnarkov · 07-24-2018, 01:07 PM

another thing for people to keep in mind, is if you are driving in eco pro mode, default settings make the ac significantly less effective. you should be able to feel an almost immediate difference if you switch to either comfort or sport. It actually seems to get even worse if the ASS kicks in. But at least you can change these settings in idrive for eco pro individual (or whatever its called)

skyler · 07-27-2018, 03:32 PM

i have the X3M40i - the a/c is great. But needed a loaner car, bmw gave me the X3 regular, and the a/c was significantly worse. I had to keep it full blast, and it was super noisy.

nogren · 07-28-2018, 12:08 AM

Quote:

Originally Posted by skyler

i have the X3M40i - the a/c is great. But needed a loaner car, bmw gave me the X3 regular, and the a/c was significantly worse. I had to keep it full blast, and it was super noisy.

Probably lack of R134a cooling gas in the AC...

kamek · 07-28-2018, 02:42 PM

Same thing happens in my car. Just took an M40i loaner for the weekend and it happens in that car as well.

BobsM3Coupe · 07-28-2018, 07:10 PM

Quote:

Originally Posted by nogren

Probably lack of R134a cooling gas in the AC...

They have been using the latest R-1234yf refrigerant for a while now.

Robert Sebastian · 07-29-2018, 12:48 AM

Hi guys,
I have also a question, in relation to this topic. When in Auto or Max is the cold air blowing from the vents close to the windshield? I can only set it to work from the windshield when in manual.

Thanks!

bmtespar · 07-29-2018, 03:25 PM

Quote:

Originally Posted by Robert Sebastian

Hi guys,
I have also a question, in relation to this topic. When in Auto or Max is the cold air blowing from the vents close to the windshield? I can only set it to work from the windshield when in manual.

Thanks!

I’m not sure I’m understanding your question but there is a direction of flow button on the ac controls. Pressing the buttons multiple times will change the distribution of air and will be indicated in your ac display.

darrylo · 07-29-2018, 07:27 PM

Quote:

Originally Posted by BobsM3Coupe

They have been using the latest R-1234yf refrigerant for a while now.

I think he's referring to the guy whose X3 didn't have any refrigerant. Apparently, the factory didn't put in any.

Robert Sebastian · 07-30-2018, 01:28 AM

Quote:

Originally Posted by bmtespar

I’m not sure I’m understanding your question but there is a direction of flow button on the ac controls. Pressing the buttons multiple times will change the distribution of air and will be indicated in your ac display.

Indeed, when in Manual you can change the direction of flow. I was wondering if in Auto or Max you have cold air blowing from the vents close to the windshield?

orcafella · 07-31-2018, 12:02 AM

Quote:

Originally Posted by Robert Sebastian

Indeed, when in Manual you can change the direction of flow. I was wondering if in Auto or Max you have cold air blowing from the vents close to the windshield?

I think those are only for defrost mode?

Ragnarkov · 07-31-2018, 12:34 AM

In Max AC mode, I believe the air blows from the front facing vents and windshield only on max fan speed (to cool the upper air). I had max ac on earlier today a few times, and I for sure wasn't blowing from the floor vents.

meanmusic · 08-23-2018, 11:02 AM

I took my X3 to the dealer due to warm AC. Turns out it needed refrigerant. Took delivery at the end of Dec 2017 and its unusual it would need refrigerant since hot weather only started here in May! Dealer found no leaks and suspects the factory did not put enough.

comber · 08-23-2018, 12:01 PM

Mine works very good. Here in Spain, around 35-38ºC outside, sunroof curtain opened, with 21º setup and blowing position 1 or 2 keeps the car cool and comfortable.

Regarding blowing hot air, it does only for about 3-5 seconds when turning on the car with AC on after a long while parked.

JamnX3 · 08-23-2018, 10:49 PM

Just had a faulty o ring replaced for warm air through a/c. A trip to the dealer maybe warranted.

07-21-2018, 09:22 PM	#1
bmtespar Major 709 Rep 1,066 Posts Drives: 19 X3 30i, 18 230iX Vert Join Date: Sep 2014 Location: Atlanta Ga iTrader: (0)	Ac blowing hot air Does anyone else notice at times the ac system just blows hot air for about 5-10 seconds? It’s like in auto mode it gets confused. Anyone else?
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07-22-2018, 03:44 AM	#2
RocketRomeo First Lieutenant 171 Rep 304 Posts Drives: X3 M40i Join Date: Apr 2018 Location: East Midlands (UK) iTrader: (0)	Yep... more like 30 seconds
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07-24-2018, 12:17 AM	#3
Sea-Tac Major 1455 Rep 1,487 Posts Drives: 2108 X3 xDrive30i Join Date: Apr 2018 Location: Bellevue, Wa iTrader: (0) Garage List 2018 X3 xDrive30i [0.00] 2016 328i xDrive [0.00]	Mine does it too. Maybe 15 to 20 seconds. Then it cools.
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07-24-2018, 12:50 AM	#4
Ragnarkov First Lieutenant 127 Rep 304 Posts Drives: 2018 X3 i30xdrive Join Date: Nov 2017 Location: Maple Ridge, BC iTrader: (0) Garage List 2018 BMW X3 [0.00]	The only time I've noticed this is when it's been sitting for a while. And in that scenario, it's just flushing the hot stale air as the compressor starts to cool. If I've been driving with the AC on for a while, it starts blowing cold air almost right away.
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07-24-2018, 04:05 AM	#5
bobbylechat Private First Class 29 Rep 118 Posts Drives: G01 30d M sport phytonic 726 Join Date: Oct 2007 Location: paris - france iTrader: (0)	i find the AC to be way less efficient than the one in my previous cars, i have to increase the level significantly in order to actually feel cold air
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07-24-2018, 10:37 AM	#8
bmtespar Major 709 Rep 1,066 Posts Drives: 19 X3 30i, 18 230iX Vert Join Date: Sep 2014 Location: Atlanta Ga iTrader: (0)	My car actually does a great job of keeping me cool. It’s just at some point, the ac blows hot air for a short period of time before going back to blowing cold air.
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07-24-2018, 01:07 PM	#9
Ragnarkov First Lieutenant 127 Rep 304 Posts Drives: 2018 X3 i30xdrive Join Date: Nov 2017 Location: Maple Ridge, BC iTrader: (0) Garage List 2018 BMW X3 [0.00]	another thing for people to keep in mind, is if you are driving in eco pro mode, default settings make the ac significantly less effective. you should be able to feel an almost immediate difference if you switch to either comfort or sport. It actually seems to get even worse if the ASS kicks in. But at least you can change these settings in idrive for eco pro individual (or whatever its called)
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07-27-2018, 03:32 PM	#10
skyler New Member 3 Rep 5 Posts Drives: 2018 X3 M40 Join Date: Jul 2018 Location: new york iTrader: (0)	i have the X3M40i - the a/c is great. But needed a loaner car, bmw gave me the X3 regular, and the a/c was significantly worse. I had to keep it full blast, and it was super noisy.
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07-28-2018, 02:42 PM	#12
kamek Brigadier General 358 Rep 3,447 Posts Drives: 2018 X3 M40i Join Date: Mar 2008 Location: Queens, NY iTrader: (4) Garage List 2008 BMW 328xi [8.20]	Same thing happens in my car. Just took an M40i loaner for the weekend and it happens in that car as well.
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07-29-2018, 12:48 AM	#14
Robert Sebastian Registered 0 Rep 2 Posts Drives: BMW X3 2.0d Luxury Line 2018 Join Date: Jul 2018 Location: Belgium iTrader: (0)	Hi guys, I have also a question, in relation to this topic. When in Auto or Max is the cold air blowing from the vents close to the windshield? I can only set it to work from the windshield when in manual. Thanks!
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07-31-2018, 12:34 AM	#19
Ragnarkov First Lieutenant 127 Rep 304 Posts Drives: 2018 X3 i30xdrive Join Date: Nov 2017 Location: Maple Ridge, BC iTrader: (0) Garage List 2018 BMW X3 [0.00]	In Max AC mode, I believe the air blows from the front facing vents and windshield only on max fan speed (to cool the upper air). I had max ac on earlier today a few times, and I for sure wasn't blowing from the floor vents.
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08-23-2018, 11:02 AM	#20
meanmusic Second Lieutenant 148 Rep 245 Posts Drives: 2020 BMW X3M Competition Join Date: Dec 2012 Location: Montreal iTrader: (0)	I took my X3 to the dealer due to warm AC. Turns out it needed refrigerant. Took delivery at the end of Dec 2017 and its unusual it would need refrigerant since hot weather only started here in May! Dealer found no leaks and suspects the factory did not put enough.
	Appreciate 1 thestuarts84.00 Quote

08-23-2018, 12:01 PM	#21
comber Lieutenant 328 Rep 501 Posts Drives: 2021 X4 M40i Join Date: Apr 2018 Location: Spain iTrader: (0)	Mine works very good. Here in Spain, around 35-38ºC outside, sunroof curtain opened, with 21º setup and blowing position 1 or 2 keeps the car cool and comfortable. Regarding blowing hot air, it does only for about 3-5 seconds when turning on the car with AC on after a long while parked.
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08-23-2018, 10:49 PM	#22
JamnX3 Private 33 Rep 84 Posts Drives: 2023 X3 M40i Join Date: Jan 2018 Location: CA iTrader: (0) Garage List 2001 BMW 325i [0.00] 2013 BMW 328xi [0.00] 2018 BMW X3 M40i [0.00]	Just had a faulty o ring replaced for warm air through a/c. A trip to the dealer maybe warranted.
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