06-11-2020, 01:32 PM | #45 |
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We haven't been the driving the M8 much and noticed that the car just pushed out warm air, no matter the temp settings. AC showed as ON on the display.
As soon as the rpms went up going on the highway the air got cold. I wonder if the car was low on battery which prevented the AC to work correctly? Would just be one of those stupid algorithms that BMW used in the past on the 7 series... |
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06-11-2020, 10:54 PM | #46 | |
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06-12-2020, 09:18 AM | #47 | |
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06-12-2020, 10:52 AM | #48 |
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No AC problems here in 93-degree, 230-percent-humid North Florida/South Georgia, he reported, almost certainly jinxing himself.
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06-12-2020, 06:45 PM | #49 | |
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I forgot to add in my earlier posts that given I'm left-handed that is the hand that is on the wheel all the time and right on the left "bulge" grip of the wheel. Side not being I love that "bulge" as it fits my hand perfectly and has been one of the minor niceties of the M850i I appreciate. All of that said that literally puts my hand right in the path of the drivers side left console vent. Prior to the summer heat I had to raise the temperature setting as it made my hand cold. However, now I'm dialed in at 75 degrees as the optimal setting. The point being is I will instantaneously know if/when (here comes that jinx) the A/C fails to blow cold air. Knocking on wood, double skipping over lines in the sidewalk, etc. that never happens. Last edited by bloozemanAZ; 06-12-2020 at 09:55 PM.. |
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06-12-2020, 09:26 PM | #50 |
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Likewise my wife's 2016 X4. It has to consider various alternatives before deciding, "OK, what the hell, here's the cold air," and then everything is nice and frosty.
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06-12-2020, 09:55 PM | #51 |
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Add me to the list of broken ac in my brand new m8
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06-12-2020, 11:11 PM | #52 |
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Have you tired engaging recirc to see if it makes a diff?
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06-12-2020, 11:25 PM | #53 |
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Re-circulation aka "Max A/C" is just a band-aid that frankly in my wife's X5 is the only way the A/C can even catch up and function in AZ summer temperatures. If I had to "Max A/C" in the M850i with its tiny cabin vs the X5 I'd be an absolutely unhappy camper. It's just starting to sound like BMW has an issue with the M8/M8C A/C which is mind boggling as the same core components (compressor, condenser, etc.) should be equivalent across the 8-series.
Hence, my prior inquiry if anyone is tracking the build dates on the cars as there may be a corollary with a lot of bad OEM parts. Outside of that the "tweaks" to the M8/M8C within the engine bay may be the issue as the core duct work, etc. into the cabin once again should be universal. |
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06-12-2020, 11:43 PM | #54 | |
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Your thoughts about builds dates is a good one and that's why I encourage members on all the auto forums I belong do always list their production dates in their sigs.
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06-13-2020, 07:06 PM | #55 | |
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I should have clarified in my "band-aid" statement that on my wife's X5 it just helps get the cabin to a cooled temperature in the summer months in about 10 minutes (seriously that is a lifetime in a 110+ degrees) and once done we'd disengage it and everything worked fine from that point on. My point being if I have to do that in the M850i with its tiny cabin area vs the X5 I'd be majorly disappointed. |
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06-13-2020, 10:20 PM | #57 |
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Hope it's something very simple...what dealer are you using in FL?
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06-14-2020, 12:50 PM | #59 | |
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I took delivery of an M8 competition Coupe yesterday. AC worked intermittently on way home. Today I only have warm air coming through the events. Even turning the temperature down to max cold in the climate control menu settings has no effect. Engine was up to temp. Turning on Max A/C had no impact. Turning car on and off also had no impact. I feel your pain. Its 90 degrees in NC today and its no fun without AC even in this car! Taking it in tomorrow to let them have a look. A/C function clearly showing in screen. I am out of ideas! |
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06-14-2020, 03:23 PM | #60 | |
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06-14-2020, 08:56 PM | #61 | |
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It's only 100 here today but I just did a short run to the corner market to pick up some beer to enjoy during my happy hour online time this evening. I watched the RPMs on startup and before the initial "step down" the A/C was blowing cold just parked in the garage. The drive to the corner market and back had 100% flawless A/C coverage. I know this doesn't necessarily help those with the A/C issues but rather post just to hopefully help them prove the problem given that the Phoenix climate is absolutely unforgiving when it comes to A/C requirements. That said I've been errant in reaching out to my CA to see if there have been reported M8/M8C A/C failures to their dealership. The email was just sent so will follow-up with anything he reports. |
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06-15-2020, 12:19 PM | #62 |
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I will try again today. Put the car on a trickle charger just to make sure its not triggered by a low battery condition.
For reference, our build date is September 3, 2019 |
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06-15-2020, 04:40 PM | #63 |
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My CA followed up this morning and is going to probe the head SA if any issues are being reported by their M8/M8C customers. I've assured him that I'll protect the innocent with any info disclosed as the sole intent is to just help the 8-series community here on Bimmerpost as that's what we do.
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06-15-2020, 07:05 PM | #65 |
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Glad they tracked it down and so quickly and hope that's the true cause. What doesn't make sense is if it's just compressors causing these issues then why did they replace the OP M8 with another vehicle? As I'm sure they must have checked his compressor
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06-15-2020, 07:09 PM | #66 | |
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The dealer that I purchased the car have been outstanding. They are taking a compressor from a new M8C model that has just been delivered (and where the air con is functioning perfectly) and putting that in my vehicle to prevent the car from being garaged for an extended period of time. They are traveling 3h to pick up my car in a covered transporter, then taking it back to the dealership to do the fix. Apparently this is a 6-8h procedure with taking the compressor out of one and into another as it is not that accessible. They then have to bring the car back in the covered transporter and finally get back to the dealership. Service above and beyond! I think it is the right thing to do, but not all dealers would go the extra mile. Clearly a problem with these units in these cars. Wow. |
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