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      06-01-2021, 01:49 PM   #1
rok2774
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AC/climate issue after installing apple carplay unit in 2015 X5

Installed a top box carplay unit this past weekend.. after troubleshooting some issues, everything appears to be working EXCEPT my AC no longer blows cold air. Is it possible I accidentally disconnected something behind the head unit? Everything is very snug behind the head unit now because the idrive cable would only allow so much slack.

Any ideas on how I could troubleshoot this?
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      06-01-2021, 02:15 PM   #2
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https://f15.bimmerpost.com/forums/sh....php?t=1772604
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      06-01-2021, 02:38 PM   #3
rok2774
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Quote:
Originally Posted by RED_Y_ View Post
Thanks. It looks like those folks were having a slightly different issue.. looks like their AC/music buttons were not working. Mine are working, it's just that the AC is no longer blowing cold air.
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      06-01-2021, 03:12 PM   #4
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So button works and you see the green light?
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      06-01-2021, 03:26 PM   #5
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Quote:
Originally Posted by RED_Y_ View Post
So button works and you see the green light?
Yep, all buttons work - just no cold air when AC is turned on.
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      06-01-2021, 05:35 PM   #6
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Quote:
Originally Posted by rok2774 View Post
Quote:
Originally Posted by RED_Y_ View Post
So button works and you see the green light?
Yep, all buttons work - just no cold air when AC is turned on.
You likely didn't push the connector back in fully. I would pop out the connector fully and plug it back in.
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      06-01-2021, 06:16 PM   #7
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Quote:
Originally Posted by jmack123 View Post
You likely didn't push the connector back in fully. I would pop out the connector fully and plug it back in.
Which connector are you referring to?
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      06-01-2021, 07:35 PM   #8
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Quote:
Originally Posted by rok2774 View Post
Quote:
Originally Posted by jmack123 View Post
You likely didn't push the connector back in fully. I would pop out the connector fully and plug it back in.
Which connector are you referring to?
There is a connector on the upper dash (In the center). Watch this video (2:40 mark):

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      06-02-2021, 07:44 AM   #9
rok2774
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Fixed the issue for now. No clue what the issue was, but after re-checking all cables, and doing a bit of cable management and tucking the car play box in a little more tidy, everything works. Now i fear that the next bump or hard turn I take will break it again. :|
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      06-02-2021, 08:56 AM   #10
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Quote:
Originally Posted by rok2774 View Post
Fixed the issue for now. No clue what the issue was, but after re-checking all cables, and doing a bit of cable management and tucking the car play box in a little more tidy, everything works. Now i fear that the next bump or hard turn I take will break it again. :|
Anytime not a problem.
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      06-07-2021, 02:46 AM   #11
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Most likely the connector for the center air vent stratification control was not properly reconnected first time round :-)
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      07-24-2021, 09:39 PM   #12
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Seems this issue is common

Just installed MMI Prime myself- AC not blowing cold, dash vents not blowing at all. Bottom vents blow but nothing but hot air. Additionally, couldn't navigate away from MMI back to Drive. Weird, cuz everything, including the AC was working fine last night. Was told by Bimmer-tech today it was possibly a blown fuse but then they send me a pic of a fuse box for a different model BMW altogether, which was a bit frustrating. Have half a mind to take the whole thing out to see if the AC will blow back in OEM but it's hard to get the connections out....pretty sure I've connected everything as it should be, but will redo the cables to be sure. Guess I'll wait to talk to Bimmer-tech Monday. Any additional insight is welcomed.
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      07-25-2021, 01:14 AM   #13
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UPDATE: Cable management seems to be the watchword of the day. All is fixed and well in my world. NOw if I can figure out how to get my phone calls to go through my speakers, instead of the phone, I'd feel a bit better.
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      09-09-2022, 09:49 PM   #14
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Hi, I am having the same issue, tried to move cables around but still not working, any tips will be greatly appreciated..
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      11-22-2022, 11:27 AM   #15
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guntur did you ever figure this out?

I installed mine, and now that's happening too.

No air coming out of the dash vents or lowers
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      11-22-2022, 10:07 PM   #16
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If you are having this issue, you didn't reconnect the wires properly. See the previous post. https://www.bimmerpost.com/forums/sh...php?p=27654018

Open the dash back up, and do it again!
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      11-24-2022, 07:50 PM   #17
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Not I'm sure, but is it necessary to disconnect the battery when installing mmi device?
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      11-29-2022, 10:16 PM   #18
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Quote:
Originally Posted by spit View Post
Not I'm sure, but is it necessary to disconnect the battery when installing mmi device?
Not necessary.
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      05-31-2023, 05:02 PM   #19
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Hi guys, having a similar issue with my F31.
I installed the MMI, AC is not blowing cold air.

Actually not sure if it‘s related to the MMI install, because first warmer days just started in Germany, I might not noticed before.

So AC is blowing medium cold air on driver side, on passanger side not cool at all.
Aditionally i removed the MMI and plugged everything again nice and tight —> still same issue.

What you guys think? Related to MMI install?

Regards,
Tmae
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      06-02-2023, 09:10 AM   #20
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Quote:
Originally Posted by Tmae View Post
Hi guys, having a similar issue with my F31.
I installed the MMI, AC is not blowing cold air.

Actually not sure if it‘s related to the MMI install, because first warmer days just started in Germany, I might not noticed before.

So AC is blowing medium cold air on driver side, on passanger side not cool at all.
Aditionally i removed the MMI and plugged everything again nice and tight —> still same issue.

What you guys think? Related to MMI install?

Regards,
Tmae

I’d solve your AC problem first, uninstall MMI and remove it, ENSURE you have connected all wires properly, then get your AC working. Once working (I’d start with a simple AC recharge - worked for me when I had warmish air) - get back to your MMI install.
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