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      08-12-2020, 07:33 PM   #23
magbarn
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I'm assuming everyone is changing the stupidly well hidden option in the climate control menu that controls the mixing of the middle/upper vents? It's the digital version of the blue/red wheel in the older cars like the E46/E39...
Stock setting is in the middle which makes the air coming out warmer than it should be.
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      08-12-2020, 07:45 PM   #24
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Quote:
Originally Posted by magbarn View Post
I'm assuming everyone is changing the stupidly well hidden option in the climate control menu that controls the mixing of the middle/upper vents? It's the digital version of the blue/red wheel in the older cars like the E46/E39...
Stock setting is in the middle which makes the air coming out warmer than it should be.
Yes, but even with it set to max cold the A/C in the G30 is subpar.
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      08-12-2020, 07:55 PM   #25
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Originally Posted by trialNerror View Post
Yes, but even with it set to max cold the A/C in the G30 is subpar.
How cold should it be? I love a cold car, but Max A/C is rarely needed as it gets crazy cold very quickly.
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      08-12-2020, 08:04 PM   #26
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Quote:
Originally Posted by LogicalApex View Post
Quote:
Originally Posted by trialNerror View Post
Yes, but even with it set to max cold the A/C in the G30 is subpar.
How cold should it be? I love a cold car, but Max A/C is rarely needed as it gets crazy cold very quickly.
I live in a tropical State and the A/C and vented seats can barely keep up on 100 degree days. It's about 70% as cold/strong as my E46 M3 and about half as cold/strong as our GLK. I test drove several G30's before purchase and the A/C operated the same in all.
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      08-12-2020, 08:18 PM   #27
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Quote:
Originally Posted by trialNerror View Post
I live in a tropical State and the A/C and vented seats can barely keep up on 100 degree days. It's about 70% as cold/strong as my E46 M3 and about half as cold/strong as our GLK. I test drove several G30's before purchase and the A/C operated the same in all.
I don't know if anything changed in MY2020, but I'm not convinced it has since the changes are all in the LCI I am sure. For me, in SE PA where we're constantly getting the fun 100F+ weather with 80+% humidity it has held up very well and doesn't appear weak to me at all. I have only activated Max A/C once or twice to see how it well worked honestly. I am normally set to 68F on 100F days and 72 on cooler days and it is perfect for me.

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      08-13-2020, 02:36 AM   #28
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Quote:
Originally Posted by magbarn View Post
I'm assuming everyone is changing the stupidly well hidden option in the climate control menu that controls the mixing of the middle/upper vents? It's the digital version of the blue/red wheel in the older cars like the E46/E39...
Stock setting is in the middle which makes the air coming out warmer than it should be.
I noticed for the first time yesterday that warm air is coming out of the rear vents whilst the front are pushing very cold air (in the UK, set at 18c and outside was 32c). It’s as if the rear has an available setting the same as the front (as above) with it set to hot !
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      08-13-2020, 09:44 AM   #29
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Originally Posted by Wivenhoe View Post
I noticed for the first time yesterday that warm air is coming out of the rear vents whilst the front are pushing very cold air (in the UK, set at 18c and outside was 32c). It’s as if the rear has an available setting the same as the front (as above) with it set to hot !
Many BMWs now have stratified air dials for the rear vents that can temper the air warmer/cooler (just like the front). If you have those dials make sure that the dials are turned into the blue area if you want cool air to blow from the rear vents. My e38/e39/e53/f06/f15 all have or had the ability to temper the air to the rear passengers with stratified air dials on the air vent at the rear of the center console for the rear passengers. This allows the passengers that are sitting on the sunny side of the car (or the shaded side) to adjust the temperature from the dials so that don't have to complain to the driver that they are too hot or too cold.
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      08-13-2020, 10:08 AM   #30
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Quote:
Originally Posted by Wivenhoe View Post
I noticed for the first time yesterday that warm air is coming out of the rear vents whilst the front are pushing very cold air (in the UK, set at 18c and outside was 32c). It’s as if the rear has an available setting the same as the front (as above) with it set to hot !
The rear vents do in fact have a warm/cool control. It's not in the menu like for the front vents, it's a physical wheel like in the older model BMW's.
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      08-13-2020, 02:30 PM   #31
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Many thanks Qsilver7 & TrialNerror - I’ll ensure the controls are set to cold - I wasn’t in the backseat, just put my arm back so couldn’t see the dials. Thanks again
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      08-20-2020, 08:20 PM   #32
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Are you guys saying you can't set the rear temp from the front or override the rear setting?
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      08-21-2020, 06:32 AM   #33
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Quote:
Originally Posted by 440xiGCMSport2 View Post
Are you guys saying you can't set the rear temp from the front or override the rear setting?
That only seems like an option for cars with 4-zone clima...
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      08-22-2020, 10:09 PM   #34
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Just brought my 17 540ito the dealer for this exact complaint and they started with the software update. It seems like it is acting better. Like others said not 100% but better.

If anyone care the info of my invoice is below.

CUSTOMER STATES THAT THE AIR IS COLD WHEN USING THE A/C BUT THERE

NO VOLUME COMING OUT OF THE CENTER VENTS. CHECK AND ADVISE

CAUSE: SOFTWARE

6100730 PROGRAMMING/ENCODING CONTROL UNIT (S)

50388 W

FC: 6400315xxx

PART# :

COUNT:

CLAIM TYPE:

AUTH CODE:

Last edited by Supacat; 08-22-2020 at 11:35 PM..
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      08-25-2020, 11:05 AM   #35
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Quote:
Originally Posted by 440xiGCMSport2 View Post
Are you guys saying you can't set the rear temp from the front or override the rear setting?
If I'm one of the "guys" you're referring to...then no, I'm not saying you can't override the setting on the rear AC control if you have the 4 zone climate option. But if you don't have the ALL or SYNC button initiated...then warm air could be coming from the rear vent if a rear passenger turned the dial into the red area.
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      08-25-2020, 11:24 AM   #36
440xiGCMSport2
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Quote:
Originally Posted by Qsilver7 View Post
Quote:
Originally Posted by 440xiGCMSport2 View Post
Are you guys saying you can't set the rear temp from the front or override the rear setting?
If I'm one of the "guys" you're referring to...then no, I'm not saying you can't override the setting on the rear AC control if you have the 4 zone climate option. But if you don't have the ALL or SYNC button initiated...then warm air could be coming from the rear vent if a rear passenger turned the dial into the red area.
I wasn't asking anyone specifically. I just found it odd or stupid that BMW would make a system where the driver can't override the rear settings unless there an option. So odd that you would have to reach around to the back in a luxury car to change heat settings if you don't have 4 zone climate control or sync. Heck my Honda Pilot SUV has sync setting button.
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      08-25-2020, 01:06 PM   #37
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I'm in the middle of my second summer with my M550 in San Antonio, Tx. We have had, and are still forcast to have multiple 100+ degree days. I park in the sun at the golf course 4-5 days a week, and return to the hot car, where I roll down the windows as I approach. My car is Sappire Black Mettalic, with black interior. Windows are tinted. I have no problem cooling the car. By the time I load my clubs and drive out of the parking lot, very cold air is blowing, and the seat ventilation can be felt on my already wet shirt and shorts. Within several miles, the cabin is cool and comfortable, without using Max Air, with Auto set on 70 degrees. I have found no problem with the air conditioning system. Sorry others are having a problem. I think this car cools as well as my Mercedes, or any of the other cars I have had. Just my $.02.
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      08-27-2020, 06:01 PM   #38
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Quote:
Originally Posted by LogicalApex View Post
I don't know if anything changed in MY2020, but I'm not convinced it has since the changes are all in the LCI I am sure. For me, in SE PA where we're constantly getting the fun 100F+ weather with 80+% humidity it has held up very well and doesn't appear weak to me at all. I have only activated Max A/C once or twice to see how it well worked honestly. I am normally set to 68F on 100F days and 72 on cooler days and it is perfect for me.

Attachment 2387747
I actually had this as my loaner car because I had bmw check my ac as well. This car at max ac was blowing strong air and got the car cold. And when I say cold it was freezing. When I got back my 2017 540 They said nothing was wrong. It was on max ac as well driving back and it got cold but not freezing cold like the loaner car I got. It also wasn’t blowing as strong as the 2020. I’m wondering if there’s anything I can do about it or am I just relegated to having my ac be the way it is. Sigh.
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      09-17-2020, 08:59 PM   #39
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Quote:
Originally Posted by Burniksapwet View Post
I actually had this as my loaner car because I had bmw check my ac as well. This car at max ac was blowing strong air and got the car cold. And when I say cold it was freezing. When I got back my 2017 540 They said nothing was wrong. It was on max ac as well driving back and it got cold but not freezing cold like the loaner car I got. It also wasn’t blowing as strong as the 2020. I’m wondering if there’s anything I can do about it or am I just relegated to having my ac be the way it is. Sigh.

I posted this before about my 2017 540i to cure my AC issue. They repaired it. BIG FOAM blocked vents ... they replaced BIG with small foam - AC works well.

This is what I have:

6499000 WT TO REMOVE THE FOAM FROM BOTH SIDES PER SIB640817
16684 WB
FC: 6400315900

26039 VERIFIED CUSTOMERS CONCERN, REMOVED FOAM PADS FROM BOTH CENTER VENTS PER SI B64. 08. 17.
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      09-19-2020, 08:22 AM   #40
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Failed A/C Evaporator

Hello All,

I was on the same boat earlier too. The A/C was weak and was sent to the dealer back in 19 and they replaced evaporator and some other parts under warranty and exactly an year later i suspected the same problem and dealer diagnosed that the A/C Gas was way low than normal, checked for leaks and SA said they changed some valves and re-topped the GAS. It worked fine for couple of weeks before going completely broke. Dealer kept the car for a week and returned it back yesterday stating that a new Storage Evaporator and some other part has been ordered from Germany and since the old part are superseded and this is a new design which will take 7-8weeks to arrive.

Can you all advise what can be done? I mean its driveable, may be just for a quick grocery run's. Would calling BMW help with any loaners or rental or am i on my own? (have a road-trip planned - hence the ask)

Mine is 18' 540ix with <16k miles on the clock.
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      10-10-2021, 10:24 PM   #41
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Quote:
Originally Posted by 540i_DFW View Post
Check the cabin air filters. Lazy mechanics have been known to install the dual filters in the wrong direction. The air flow arrows on the filters should be pointing toward the rear of the car or pointing toward you. If they are installed in reverse the air flow could be restricted.
hi, there, i am not sure toward the rear is the right direction, as i saw some video show the opposite way, they said toward the front of the car is the right direction, can not find an official source to verify,

i also see that the g30 540i auto is not that perfect as my previous f10 535i. it takes much longer to reach set temperature under non recirculation and auto mode (already adjust the upper body temperature to low, same setting for compare); not sure what is the issue; i guess auto engine off may delay the cooling time as it slows the cold air speed when engine is off. my f10 does not have engine auto off function. also i noticed that the air out temperature for f10 is only 37.5 degrees F, however g30 is higher to 42 degrees, not sure if the Refrigerant is also different which make the difference of auto mode not that effective to lower the cabin temperature to set temperature.

for g30 when set the temperature to cool the cabin, i found the foot temperature is high, i think this is one other reason that delay the time for the cabin temperature to lower to the set temperature

i read a long thread already, but can not find a solid answer, only knowing there is kind of "software" update can help, not sure if the software is really update..my 540i is built 2018, january, not sure if the software update is effective to this model......this bother me a lot as i lived in southeast asia, quite hot in summer say to 95 to 100 degree.

thank you if anyone has any proof solution for this, some engineer said they can edit the code to stop the hot air from feet area, however i don't want this kind of solution, i expect that there is a total solution from bmw to fix this....appreciate all for your time reading my post; have a great day
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      09-19-2022, 05:40 PM   #42
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Hope my video helps someone out there

https://youtu.be/d48AcQIYXIs
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      09-19-2022, 07:47 PM   #43
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Quote:
Originally Posted by SteveinArizona View Post
Quote:
Originally Posted by dberry08 View Post
I’ve noticed the same, Arizona is hot right now.
Yes it is. I have the 530e and this weekend with the temperature nearing 110 I used the condition now feature on the phone app to turn on the AC after the 17th hole. By the time I got to the car, I didn't even need to turn it on max.

Otherwise, if my car is sitting in the heat for a while, I turn it on max for a few minutes and then back to auto. Works okay for me but I am usually the only one in the car and I did get my windows tinted with a high quality ceramic tint.
Did you do the windshield? I think I'm going to next spring. I did all the others but the windshield is still letting in a ton of heat.

I used 25% ceramic on all the windows but obviously I'd do the Air 80 on the windshield.
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      09-20-2022, 04:47 AM   #44
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Awesome!!
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