[RJC-1]

Originally Posted by Wolfman64

All M850's though. Our M8 is Sept. 19 and has issues. While more BMW models appears to be affected (a lot of cars according to our SA), the 850's appear to be spared.

But then again, M550's and X5/6's with V8's are, this leads me to believe there were issues with AC compressors (they're made by RF when a V8 is involved) and some early ones were made without the defective component/s and most did not. I also believe M850 production was cut back for MY '20 as the M8's rolled out, which would also help to explain things...

[bloozemanAZ]

Originally Posted by RJC-1

But then again, M550's and X5/6's with V8's are, this leads me to believe there were issues with AC compressors (they're made by RF when a V8 is involved) and some early ones were made without the defective component/s and most did not. I also believe M850 production was cut back for MY '20 as the M8's rolled out, which would also help to explain things...

The M850i Coupes were definitely cut back in production for MY 20 as my initial order was part of 5 allocations in August for the entire US with a Septmber build date. Given the ZDA vs ZDX fiasco I ended up getting a slot in the next 5 allocations for an October build date. I'll assume that the 2020 M850i Convertibles had a similar allocation.

According to my SA the primary focus was on the 840s, M850i GCs and of course the M8 varients considering there were still a bevy of 2019 M850i Coupes and Convertibles on the ground. In other words very similar to the existing 2020 M8s on the ground but such a volume there will be no allocations whatsoever for the 2021 MY.

A side note is that the BMW NA website configurator still is showing 2020 builds for the 8-series yet we all know that is not possible at this point. Just another example of BMW not being able to fight their way out of paper bag in the modern digital age.

[RJC-1]

Originally Posted by bloozemanAZ

The M850i Coupes were definitely cut back in production for MY 20 as my initial order was part of 5 allocations in August for the entire US with a Septmber build date. Given the ZDA vs ZDX fiasco I ended up getting a slot in the next 5 allocations for an October build date. I'll assume that the 2020 M850i Convertibles had a similar allocation.

According to my SA the primary focus was on the 840s, M850i GCs and of course the M8 varients considering there were still a bevy of 2019 M850i Coupes and Convertibles on the ground. In other words very similar to the existing 2020 M8s on the ground but such a volume there will be no allocations whatsoever for the 2021 MY.

A side note is that the BMW NA website configurator still is showing 2020 builds for the 8-series yet we all know that is not possible at this point. Just another example of BMW not being able to fight their way out of paper bag in the modern digital age.

You raise a good point about the GC's eterning the mix for MY 20, do we have any reports here of 850 GC's being affected? BTW the 6 banger version of the coupes, cabs and GC's use a different compressor.

[c^2]

BUMP

Add me onto the list of owners getting A/C failure. 3600 miles/6 months in.

10/10 the last BMW I'll ever get. Most expensive one, endless problems...

[Resjudicata]

Originally Posted by c^2

BUMP

Add me onto the list of owners getting A/C failure. 3600 miles/6 months in.

10/10 the last BMW I'll ever get. Most expensive one, endless problems...

They all have their problems. Name one car that's similar price and specs; that doesn't have something wrong with it. Mercedes has their problems too.
Unless you go up or down in price points, you won't find anything without problems.

[c^2]

Originally Posted by Resjudicata

They all have their problems. Name one car that's similar price and specs; that doesn't have something wrong with it. Mercedes has their problems too.
Unless you go up or down in price points, you won't find anything without problems.

True, but for their "flagship" vehicle that was overpriced to begin with, they should have made this car bulletproof or at the very least make sure basic things would be working.

One would also think the service departments would be better about getting this fixed, which they aren't.

Mercedes cars have their problems, but I've never had an issue about service.

[bloozemanAZ]

Originally Posted by c^2

True, but for their "flagship" vehicle that was overpriced to begin with, they should have made this car bulletproof or at the very least make sure basic things would be working.

One would also think the service departments would be better about getting this fixed, which they aren't.

Mercedes cars have their problems, but I've never had an issue about service.

I didn't get to reply to your first posting on the AC issue hitting you now but it is erasing my confidence that at 8 months and about 3K miles I may still not be in the "green" zone of not having a same experience. That aside given all of the other issues on your M8 plus now the AC issue I'd personally go after a lemon law "buy back" from your dealer. Once completed you have the freedom to buy whatever you want as the replacement.

[c^2]

Originally Posted by bloozemanAZ

I didn't get to reply to your first posting on the AC issue hitting you now but it is erasing my confidence that at 8 months and about 3K miles I may still not be in the "green" zone of not having a same experience. That aside given all of the other issues on your M8 plus now the AC issue I'd personally go after a lemon law "buy back" from your dealer. Once completed you have the freedom to buy whatever you want as the replacement.

Doesn't qualify under lemon law for the state of MA. I wouldn't wish this car on anyone else (lease transfer is out), so best I can do is trade it into another dealer.

[Wolfman64]

Ice cold AC! Finally had the back ordered compressor installed, along with the condenser and a valve. Evaporator wasn’t touched, so engine bay work only.

Ours was partially working, phasing between cold and warm which made them believe first that this was a software issue.

Can say I am happy it’s done but disappointed with the time to get this resolved. Our dealer is working with BMW to get us some money for the downtime...

[BMWM8Competition]

Originally Posted by tg_vegas

Anyone else having AC issues? My first 2020 M8 AC failed so many times in my first 30 days that BMW took the car back. My second 2020 M8 is now having the same issues. Sometimes just hot air until I shut off and restart the car. Most of the time I get hot air when I'm accelerating and cold when I'm not.

Is it just me or is this happening to any of you guys?

I just picked up my new M8 CP. Driving home I noticed over 82 mph it started to blow warm air. I thought it’s perhaps some decoupling mechanism at higher speeds? However, it needs to function at highway speeds especially since I live in Florida. Hopefully, it was a glitch or my error somehow. I went through the climate settings to make sure it was synced, AC on, and adjusted fan speed. I’m trying to pretend it didn’t seem to drop off a few times after that. Fingers crossed this isn’t a huge recall.

[redhot47fla]

Originally Posted by BMWM8Competition

I just picked up my new M8 CP. Driving home I noticed over 82 mph it started to blow warm air. I thought it’s perhaps some decoupling mechanism at higher speeds? However, it needs to function at highway speeds especially since I live in Florida. Hopefully, it was a glitch or my error somehow. I went through the climate settings to make sure it was synced, AC on, and adjusted fan speed. I’m trying to pretend it didn’t seem to drop off a few times after that. Fingers crossed this isn’t a huge recall.

Sorry to be the messenger, but read through the thread. Your car appears to be among the many affected by the corrupted A/C components. You're almost certainly going to have to bring it back to the dealer - and make sure they know what you know after reading through this thread.

[dis737]

Same here, intermittent A/C, <500 miles, 2020 M850iGC

[Frenetic]

I started a poll in the G05 forum. Anyone’s input from this model would be appreciated.

https://g05.bimmerpost.com/forums/sh....php?t=1750855

[M4CPF82]

I had similar problems. Still in break in period (<400 miles). Dealership said no recalls or service bulletin. The plan is to leave it with them for 1200 mile service and inspect the compressor/AC system. In the meantime I've changed a few climate settings which seem to help. I turned OFF indirect ventilation, upper vent "Temperature adjustment" to cooler setting, and fan speed to "strong".

[RJC-1]

Spoke with my dealer in Naples about the AC situation last week, he said they have not had one 8 series M850/M8 in for the issue.

[c^2]

Originally Posted by M4CPF82

I had similar problems. Still in break in period (<400 miles). Dealership said no recalls or service bulletin. The plan is to leave it with them for 1200 mile service and inspect the compressor/AC system. In the meantime I've changed a few climate settings which seem to help. I turned OFF indirect ventilation, upper vent "Temperature adjustment" to cooler setting, and fan speed to "strong".

Did this, did not help on mine.

There is definitely a service bulletin for the techs at the dealerships. Was previously mentioned in another's earlier post, but some vehicles manufactured last year were affected.

They replaced my entire A/C unit (compressor, condenser, evaporator, all the valves/connections). So far everything is working like it should.

Still in the process of lemoning the vehicle

[RJC-1]

Has anyone even seen the TSB for this issue yet? I would be really nice to actually know the VIN/prod date range affected!

[dis737]

FWIW diagnosed fluctuating psi readings, found evidence of metal shavings, replaced compressor, expansion valve and condenser.

M850GC prod. date 3/1/20

[RJC-1]

Originally Posted by dis737

FWIW diagnosed fluctuating psi readings, found evidence of metal shavings, replaced compressor, expansion valve and condenser.

M850GC prod. date 3/1/20

Thanks for that info and including your production date...so glad they did not need to replace the evap.

[Wolfman64]

I thought it maybe helpful to post a copy of our repair details for others in case their dealer is confused on a similar problem

All repairs were in the engine bay only...

[RJC-1]

^^^
Thank goodness they did not need to change the evap!

[Coops395]

I've had my 840d since March 2020. Haven't driven it too much because of COVID but after 1000 miles the AC and heating decided it had a mind of its own. I thought it might be a glitch and reset the head unit but today I had a 300 mile round trip and it was cold (9 degrees) and raining, I'd set it on 18 degrees with moderate fan (no AC and no auto) it would blow Air conditioned cold for 15 minutes then Max hot for 15 minutes, this happened through my entire journey and irrelevant of my heater or AC settings it does the same. Before I take it to the dealer who will obviously notice that nothing is wrong and nothing needs fixing, has anyone else in UK 8 series had this issue and did your dealer fix it?

Any help or feedback would be appreciated, it seems a lot of early production cars seem to have heater problems like mine but you wouLd have thought this would have been fixed 18 months into production...