My A/C blows cold air on driver side and hot on Passenger

BMW_K1D · 07-03-2019, 11:59 AM

Hey guys, my 2014 x5 x35i is blowing cold air on driver side and hot on passenger side. I check the refrigerant and is charged. Anyone knows what my be the problem and how much it may cost? Thanks in advance!

Russmov · 07-03-2019, 12:20 PM

Quote:

Originally Posted by J7NKMAIL

Hey guys, my 2014 x5 x35i is blowing cold air on driver side and hot on passenger side. I check the refrigerant and is charged. Anyone knows what my be the problem and how much it may cost? Thanks in advance!

Have you checked the dial near the center vents? If it's red it will be hot, blue will be cold

BMW_K1D · 07-03-2019, 12:22 PM

Quote:

Originally Posted by Russmov

Have you checked the dial near the center vents? If it's red it will be hot, blue will be cold

Yes i did. Both dial are set to cold

menelaos · 07-03-2019, 12:24 PM

Looks like the passenger zone sensor needs to be looked at.
But do try this. Hit MAX AC button and see if it works.

BMW_K1D · 07-03-2019, 12:31 PM

Quote:

Originally Posted by menelaos

Looks like the passenger zone sensor needs to be looked at.
But do try this. Hit MAX AC button and see if it works.

I did that as well, but that didnt work. Where i can find that sensor do you know?

menelaos · 07-03-2019, 12:38 PM

Will need to do some digging in the diagrams. Do you have 4 or 2 zone?

BMW_K1D · 07-03-2019, 12:49 PM

Quote:

Originally Posted by menelaos

Will need to do some digging in the diagrams. Do you have 4 or 2 zone?

I think is 2 zone

BMW_K1D · 07-03-2019, 12:53 PM

Attached image

menelaos · 07-03-2019, 12:56 PM

Do you have rear dials? if so, it's 4 zone.
Regardless, does the center passenger vent blow cold..or is it just the door-by passenger vent that does not?

BMW_K1D · 07-03-2019, 01:08 PM

Quote:

Originally Posted by menelaos

Do you have rear dials? if so, it's 4 zone.
Regardless, does the center passenger vent blow cold..or is it just the door-by passenger vent that does not?

So its 2 zones. No rear dials. Center passenger vent blows hot as well

menelaos · 07-03-2019, 01:14 PM

From a brief google search, it could be a loss of Freon pressure.
As such, AC may be shutting down one zone to compensate.
First, if you can, check for any codes being thrown. This may provide a lead.
Eventually, you will have to take it to shop to check Freon pressure, evapcore leaks etc.

BMW_K1D · 07-03-2019, 01:17 PM

Quote:

Originally Posted by menelaos

From a brief google search, it could be a loss of Freon pressure.
As such, AC may be shutting down one zone to compensate.
First, if you can, check for any codes being thrown. This may provide a lead.
Eventually, you will have to take it to shop to check Freon pressure, evapcore leaks etc.

Ok. It happened at a bad time when is hot here in nyc. Thanks for the help!

menelaos · 07-03-2019, 01:19 PM

Quote:

Originally Posted by J7NKMAIL

Ok. It happened at a bad time when is hot here in nyc. Thanks for the help!

I had a scare last week, but it went back to work after I hit the MAX AC button.
Must have kept the "warm" setting in each passenger profile as my wife had the same issue.
Car w/o fully working AC is kinda useless in these conditions.
Keep us posted!

BMW_K1D · 07-03-2019, 01:27 PM

Quote:

Originally Posted by menelaos

I had a scare last week, but it went back to work after I hit the MAX AC button.
Must have kept the "warm" setting in each passenger profile as my wife had the same issue.
Car w/o fully working AC is kinda useless in these conditions.
Keep us posted!

Will do

va335i · 07-03-2019, 02:16 PM

I have the same problem in 50I right now, except driver side is hot and passenger is cold. I was told it is an actuator, does not throw codes. I have not fixed yet since I am turning over my vehicle Tuesday and moving to an X5M. Good luck with the fix.

jfandl · 07-03-2019, 08:03 PM

I used to have this happen to my 330 a couple times a year. It was a freon leak and it would blow cold on passenger side, moderate on the center vent and hot on the driver's side. Even with dual zone, its still one compressor so I'd check freon.

mgbabe · 07-03-2019, 09:57 PM

It happened on our 2017 40e on RHS as well, but only when the engine was running and got put to normal running temperature. In pure electric mode, it worked normally since the engine never heats up.

Dealer diagnosed as the RHS system valve was shorted to open letting hot air in from engine. Part was replaced under warranty and in the year since it has not re-occurred.

BMW_K1D · 07-09-2019, 06:43 AM

Problem fixed. The issue was the heater control valve.

byaru1 · 07-02-2020, 07:18 AM

Quote:

Originally Posted by J7NKMAIL

Problem fixed. The issue was the heater control valve.

Hi, I have the exact problem.
What was the issue with the control valve? Was it loose? Did it require replacement?
Thx.

uwodoc72 · 07-05-2020, 07:37 AM

Did you do the repair yourself or did you take it to a tech?

markslc1 · 06-07-2021, 10:32 AM

I’m having similar issues. How did you determine it was the heater control valve? Did you DIY?

07-03-2019, 11:59 AM	#1
BMW_K1D Enlisted Member 15 Rep 39 Posts Drives: 2014 BMW X5 (F15) Join Date: Sep 2017 Location: New York iTrader: (0)	My A/C blows cold air on driver side and hot on Passenger Hey guys, my 2014 x5 x35i is blowing cold air on driver side and hot on passenger side. I check the refrigerant and is charged. Anyone knows what my be the problem and how much it may cost? Thanks in advance!
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07-03-2019, 12:24 PM	#4
menelaos Lieutenant Colonel 1226 Rep 1,915 Posts Drives: 2015 BMW X5 F15 Join Date: Nov 2017 Location: Cheboygan, MI iTrader: (0)	Looks like the passenger zone sensor needs to be looked at. But do try this. Hit MAX AC button and see if it works.
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07-03-2019, 12:38 PM	#6
menelaos Lieutenant Colonel 1226 Rep 1,915 Posts Drives: 2015 BMW X5 F15 Join Date: Nov 2017 Location: Cheboygan, MI iTrader: (0)	Will need to do some digging in the diagrams. Do you have 4 or 2 zone?
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07-03-2019, 12:53 PM	#8
BMW_K1D Enlisted Member 15 Rep 39 Posts Drives: 2014 BMW X5 (F15) Join Date: Sep 2017 Location: New York iTrader: (0)	Attached image Attached Images
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07-03-2019, 12:56 PM	#9
menelaos Lieutenant Colonel 1226 Rep 1,915 Posts Drives: 2015 BMW X5 F15 Join Date: Nov 2017 Location: Cheboygan, MI iTrader: (0)	Do you have rear dials? if so, it's 4 zone. Regardless, does the center passenger vent blow cold..or is it just the door-by passenger vent that does not?
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		BMW X5 and X6 Forum (F15/F16) > BMW X5 (F15) and BMW X6 (F16) Forum > BMW X5 and X6 (F15/F16) Forum
My A/C blows cold air on driver side and hot on Passenger

07-03-2019, 01:14 PM	#11
menelaos Lieutenant Colonel 1226 Rep 1,915 Posts Drives: 2015 BMW X5 F15 Join Date: Nov 2017 Location: Cheboygan, MI iTrader: (0)	From a brief google search, it could be a loss of Freon pressure. As such, AC may be shutting down one zone to compensate. First, if you can, check for any codes being thrown. This may provide a lead. Eventually, you will have to take it to shop to check Freon pressure, evapcore leaks etc.
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07-03-2019, 02:16 PM	#15
va335i Private 22 Rep 79 Posts Drives: G07 X7 M50i Join Date: Jan 2012 Location: Gloucester va iTrader: (0)	I have the same problem in 50I right now, except driver side is hot and passenger is cold. I was told it is an actuator, does not throw codes. I have not fixed yet since I am turning over my vehicle Tuesday and moving to an X5M. Good luck with the fix. __________________ 2007 335i sport sedan fully loaded, fmc, downpipes, PTF custom tune. Sold 2012 X5 50i fully loaded. ESS TUNE 2017 X5 M Donington Grey
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07-03-2019, 08:03 PM	#16
jfandl Private 44 Rep 93 Posts Drives: 2014 BMW X5 5.0 (F15) - BM3 Join Date: Feb 2013 Location: Fort Lauderdale, FL iTrader: (0)	I used to have this happen to my 330 a couple times a year. It was a freon leak and it would blow cold on passenger side, moderate on the center vent and hot on the driver's side. Even with dual zone, its still one compressor so I'd check freon.
	Appreciate 0 Quote

07-03-2019, 09:57 PM	#17
mgbabe Private 52 Rep 80 Posts Drives: 2018 330i xDrive Gran Turismo Join Date: Jun 2018 Location: Toronto, Ontario, Canada iTrader: (0) Garage List 2018 BMW 330i xDriv ... [0.00] 2017 BMW X5 xDrive40e [0.00] 2016 Mazda Mazda3 GT [0.00]	It happened on our 2017 40e on RHS as well, but only when the engine was running and got put to normal running temperature. In pure electric mode, it worked normally since the engine never heats up. Dealer diagnosed as the RHS system valve was shorted to open letting hot air in from engine. Part was replaced under warranty and in the year since it has not re-occurred. __________________ 2018 330i xDrive Gran Turismo - Mineral White, Coral Red Interior 2016 Mazda Mazda3 GT - Deep Crystal Blue Mica, Off-white Interior 2007 Four Winns Horizon 190
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07-09-2019, 06:43 AM	#18
BMW_K1D Enlisted Member 15 Rep 39 Posts Drives: 2014 BMW X5 (F15) Join Date: Sep 2017 Location: New York iTrader: (0)	Problem fixed. The issue was the heater control valve. Attached Images
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07-05-2020, 07:37 AM	#20
uwodoc72 Registered 0 Rep 2 Posts Drives: 2016 X5 35D Join Date: Jul 2020 Location: Toronto iTrader: (0)	Did you do the repair yourself or did you take it to a tech?
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06-07-2021, 10:32 AM	#21
markslc1 Lieutenant 183 Rep 536 Posts Drives: 2011 1M, 14 X5 x35i Join Date: Oct 2012 Location: Mill Creek, WA iTrader: (1)	I’m having similar issues. How did you determine it was the heater control valve? Did you DIY?
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