Quote:
Originally Posted by bloozemanAZ
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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My reason for mentioning recirc is two fold, one that since I have been using it exclusively due to the pandemic I haven't had one issue with cooling (something did occur a while back), and two I think the issue I had/others are having may have something to do with the hvac door(s) not fully opening/closing properly perhaps allowing too much outside air in, as during my incident I tried a bunch of things and I believe engaging the recirc and going back to auto mode did the trick. I no longer have to use auto mode either, just been using recirc but will try it w/o as a test next time I take out the car. I wouldn't be a bit surprised if the issue being reported is just a software glitch.
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.