AC on when starting the car

GoKuA · 09-03-2014, 04:48 PM

AC seems to be turned on for the first 5 minutes on every start, regardless if AC is on or not

Has anyone noticed that on theirs? If so, how to turn it off? I don't need the AC to be on every time I start my car.

Edit: To clarify, it blows cold air even if the AC indicator light is off.

Oakleyguy · 09-04-2014, 10:49 AM

Try adjusting the blend wheel next to the vents?

GoKuA · 09-04-2014, 12:38 PM

Quote:

Originally Posted by Oakleyguy

Try adjusting the blend wheel next to the vents?

I will try that and see. But I don't recall from my previous BMWs that adjusting the vent blend knob makes colder air than ambient air on cold start.

gsrbri · 09-08-2014, 12:33 PM

I have noticed the same thing. It is definitely compressor-cooled air on start-up...no doubt about it.

If you notice, in about 10 minutes, it goes to ambient air.

Here's what I'm thinking. Given usually during start up, the air in the cabin, especially if parked outside, is possibly more humid than dry. It would probably make sense to run the compressor for a short period to dry the cabin. Then, deactivate the compressor if the interior climate control A/C button is set to "off."

I'm hoping that is the case...that would be cool (literally!)

-Brian

RussDC · 09-22-2014, 07:43 AM

My AC turns on when I start the car. Is it normal?

Wah · 09-22-2014, 08:31 AM

Mine does too...even if I turn it off before I exit.

GOLFFRR · 09-22-2014, 08:42 AM

yea its a default, one of the things I had coded off. It drove me nuts since I never rarely ever turn on the A/C in my car I prefer the window down

Wei718 · 09-22-2014, 09:07 AM

That's odd! Mines doesn't turn on and so does my auto start stop feature (thank god as I hate that feature)

TheRealOrosie · 09-22-2014, 09:23 AM

Mine does not turn on when starting the car. I too never use the AC unless it is scorching outside, or raining and need to keep the windows from fogging.

I prefer windows down, fresh air and the sound of the exhaust!

GOLFFRR · 09-22-2014, 09:33 AM

Quote:

Originally Posted by Wei718

That's odd! Mines doesn't turn on and so does my auto start stop feature (thank god as I hate that feature)

Quote:

Originally Posted by P-TownM3

Mine does not turn on when starting the car. I too never use the AC unless it is scorching outside, or raining and need to keep the windows from fogging.

I prefer windows down, fresh air and the sound of the exhaust!

really? hmm interesting. I wonder why some do and some don't.

Wei718 · 09-22-2014, 09:37 AM

Quote:

Originally Posted by GOLFFRR

really? hmm interesting. I wonder why some do and some don't.

Yeah! Was your climate control set on auto or max AC before the car is turned off?

GOLFFRR · 09-22-2014, 09:48 AM

I believe it would come on auto.

YMB-M3-J2 · 09-22-2014, 10:26 AM

I think you can save a profile that will have it off when you start the car.. that may be why some do and some dont.

onatuesday · 09-22-2014, 10:45 AM

Bump. The single most annoying thing about this car. Can the dealer code it off?

YMB-M3-J2 · 09-22-2014, 10:53 AM

dealer probably not.. coders yes.

RussDC · 09-22-2014, 12:10 PM

Thanks guys
I'll look into it during my first service

shortseller · 09-22-2014, 12:27 PM

And we wonder why batterys don't last in these things!

Zeroblade · 09-22-2014, 01:10 PM

I don't have the car but it sounds like something related to the climate control within iDrive.

For the people who had their A/C's come on - was it even hot out? I thought I remember somewhere that you can set the controls to cool down the interior before you enter.

tdizzle · 09-22-2014, 03:26 PM

I know my F30 always is on (at least the fan) when I turn the car on (unless it's been only a few mins and I turned the air off before getting back in). It's like the default is where you had it before unless it was off, then it turns it on the lowest fan setting.

I forget if you had the AC off but the fan on if it would turn the AC on. Time to test! I dont think that's the case or else I would've probably whined in the winter about my ac always being on.

So I guess 2 questions: 1) What was your fan setting when you got out of the car for more than 15 mins and 2) what was the thermo (AC on / off)? My guess is it goes to "last AC on/off setting" and last fan setting unless it was off then it would default to lowest fan setting.

Further testing is necessary! (Or we could read the manual I guess...)

mkoesel · 09-22-2014, 04:31 PM

Quote:

Originally Posted by P-TownM3

Mine does not turn on when starting the car. I too never use the AC unless it is scorching outside, or raining and need to keep the windows from fogging.

I prefer windows down, fresh air and the sound of the exhaust!

Ditto every word of that.

Quote:

Originally Posted by Wei718

Yeah! Was your climate control set on auto or max AC before the car is turned off?

That's the first thing that came to mind for me too - do you guys have your climate control set to "Auto"?

04RC51 · 09-22-2014, 04:37 PM

Quote:

Originally Posted by mkoesel

That's the first thing that came to mind for me too - do you guys have your climate control set to "Auto"?

I've tried EVERY setting possible before turning off the car and it will ALWAYS start with the air on. Even the Genius said it's a default, although that means nothing. But now I'm jealous that some cars don't have this default when starting.

AYF80 · 09-22-2014, 04:44 PM

The climate control will always come on when turning On the car. Just press the AC button to off and the actual AC won't come back on unless you turn it on.

09-03-2014, 04:48 PM	#1
GoKuA Second Lieutenant 42 Rep 250 Posts Drives: 2015 M4 DCT Join Date: Feb 2011 Location: Los Angeles, CA iTrader: (7) Garage List 2015 BMW M4 [0.00]	AC on when starting the car AC seems to be turned on for the first 5 minutes on every start, regardless if AC is on or not Has anyone noticed that on theirs? If so, how to turn it off? I don't need the AC to be on every time I start my car. Edit: To clarify, it blows cold air even if the AC indicator light is off. __________________ '97 328IS SPP 5MT sold '99 E46 328i SPP AT sold '04 E46 M3 6MT RIP '88 E30 M3 5MT RIP '08 E92 M3 6MT sold '15 F82 M4 DCT
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09-04-2014, 10:49 AM	#2
Oakleyguy Resident Engineer 135 Rep 748 Posts Drives: Land Cruiser Join Date: Oct 2008 Location: Denver, CO / Tulsa, OK iTrader: (0) Garage List 2014 Toyota URJ200 [0.00] 2017 BMW M2 [0.00] 2015 BMW M4 [10.00] 2005 Toyota UZJ100 [0.00]	Try adjusting the blend wheel next to the vents? __________________ ///M4 (SO/BLK/BLK) Exec, LED, Blk 19s, HK, 6MT <- SOLD ///M2 (LBB), Exec, 6MT <- SOLD 2014 Land Cruiser, Slee Sliders, OME Lift, ARB Onboard Air European Delivery Journal & F8X Door Rattle Fix Machine Shop Directory - www.mfgcenter.com
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09-08-2014, 12:33 PM	#4
gsrbri Lieutenant 560 Rep 570 Posts Drives: F87 6MT Join Date: Jul 2011 Location: Boston, MA iTrader: (0)	Cold Air I have noticed the same thing. It is definitely compressor-cooled air on start-up...no doubt about it. If you notice, in about 10 minutes, it goes to ambient air. Here's what I'm thinking. Given usually during start up, the air in the cabin, especially if parked outside, is possibly more humid than dry. It would probably make sense to run the compressor for a short period to dry the cabin. Then, deactivate the compressor if the interior climate control A/C button is set to "off." I'm hoping that is the case...that would be cool (literally!) -Brian
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09-22-2014, 07:43 AM	#5
RussDC Private First Class 13 Rep 101 Posts Drives: 2015 M3 Join Date: Jun 2011 Location: Long Island, NY iTrader: (0)	AC on when staring the car My AC turns on when I start the car. Is it normal?
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09-22-2014, 08:31 AM	#6
Wah IG@i.am.wah 2779 Rep 3,815 Posts Drives: M2 CS Join Date: Jul 2009 Location: NJ iTrader: (4) Garage List 2022 Tesla Model Y ... [0.00] 1974 BMW 2002 [0.00] 2020 BMW M2 CS [0.00]	Mine does too...even if I turn it off before I exit.
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09-22-2014, 08:42 AM	#7
GOLFFRR 10816 Rep 27,599 Posts Drives: GOLFFRR cart Join Date: Mar 2009 Location: we sell BMWs to "ALL" US states iTrader: (4)	yea its a default, one of the things I had coded off. It drove me nuts since I never rarely ever turn on the A/C in my car I prefer the window down __________________ BEFORE YOU BUY YOUR NEXT BMW, EMAIL OUR GUY KOTE FIRST! Kote M Sales:Kotem@bmwofcamarillo.com Cell:805-368-9101 vipfinance@bmwofcamarillo.com for warranties!
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09-22-2014, 09:07 AM	#8
Wei718 Major 340 Rep 1,089 Posts Drives: 718 GT4 Join Date: Nov 2012 Location: Hayward iTrader: (9)	That's odd! Mines doesn't turn on and so does my auto start stop feature (thank god as I hate that feature)
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09-22-2014, 09:23 AM	#9
TheRealOrosie BMW Fan Boy 446 Rep 1,385 Posts Drives: //M Join Date: Apr 2010 Location: Chapel Hill, NC iTrader: (0)	Mine does not turn on when starting the car. I too never use the AC unless it is scorching outside, or raining and need to keep the windows from fogging. I prefer windows down, fresh air and the sound of the exhaust!
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09-22-2014, 09:48 AM	#12
GOLFFRR 10816 Rep 27,599 Posts Drives: GOLFFRR cart Join Date: Mar 2009 Location: we sell BMWs to "ALL" US states iTrader: (4)	I believe it would come on auto. __________________ BEFORE YOU BUY YOUR NEXT BMW, EMAIL OUR GUY KOTE FIRST! Kote M Sales:Kotem@bmwofcamarillo.com Cell:805-368-9101 vipfinance@bmwofcamarillo.com for warranties!
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09-22-2014, 10:26 AM	#13
YMB-M3-J2 Major 258 Rep 1,309 Posts Drives: YMB M3 Join Date: Jan 2010 Location: South Florida iTrader: (0) Garage List 2016 BMW X6M [0.00] 2018 BMW M3 [0.00] 2015 BMW X4 35i [0.00] 2015 BMW M4 (SOLD) [0.00] 2012 BMW 328i SL(SOLD) [0.00] 2008 BMW 328i (SOLD) [0.00] 2007 C230 Komp (SOLD) [0.00] 1999 BMW 328i (SOLD) [0.00]	I think you can save a profile that will have it off when you start the car.. that may be why some do and some dont.
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09-22-2014, 10:45 AM	#14
onatuesday Captain 157 Rep 965 Posts Drives: Hyundai Join Date: Jan 2014 Location: TX iTrader: (0)	Bump. The single most annoying thing about this car. Can the dealer code it off?
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09-22-2014, 10:53 AM	#15
YMB-M3-J2 Major 258 Rep 1,309 Posts Drives: YMB M3 Join Date: Jan 2010 Location: South Florida iTrader: (0) Garage List 2016 BMW X6M [0.00] 2018 BMW M3 [0.00] 2015 BMW X4 35i [0.00] 2015 BMW M4 (SOLD) [0.00] 2012 BMW 328i SL(SOLD) [0.00] 2008 BMW 328i (SOLD) [0.00] 2007 C230 Komp (SOLD) [0.00] 1999 BMW 328i (SOLD) [0.00]	dealer probably not.. coders yes.
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09-22-2014, 12:10 PM	#16
RussDC Private First Class 13 Rep 101 Posts Drives: 2015 M3 Join Date: Jun 2011 Location: Long Island, NY iTrader: (0)	Thanks guys I'll look into it during my first service
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09-22-2014, 12:27 PM	#17
shortseller Brigadier General 1003 Rep 3,396 Posts Drives: ‘18 ABM F80ZCP/dct Join Date: Aug 2010 Location: NOVA iTrader: (0)	And we wonder why batterys don't last in these things! __________________
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09-22-2014, 01:10 PM	#18
Zeroblade Explodes on impact 209 Rep 552 Posts Drives: 2006 Mazda3 Join Date: Jul 2014 Location: Behind the wheel iTrader: (0)	I don't have the car but it sounds like something related to the climate control within iDrive. For the people who had their A/C's come on - was it even hot out? I thought I remember somewhere that you can set the controls to cool down the interior before you enter. __________________ Yea... yea I got an M(azda)3.... <.< work in progress
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09-22-2014, 03:26 PM	#19
tdizzle Colonel 107 Rep 1,997 Posts Drives: 2017 F80 ZCP Join Date: Aug 2012 Location: Memphis iTrader: (0)	I know my F30 always is on (at least the fan) when I turn the car on (unless it's been only a few mins and I turned the air off before getting back in). It's like the default is where you had it before unless it was off, then it turns it on the lowest fan setting. I forget if you had the AC off but the fan on if it would turn the AC on. Time to test! I dont think that's the case or else I would've probably whined in the winter about my ac always being on. So I guess 2 questions: 1) What was your fan setting when you got out of the car for more than 15 mins and 2) what was the thermo (AC on / off)? My guess is it goes to "last AC on/off setting" and last fan setting unless it was off then it would default to lowest fan setting. Further testing is necessary! (Or we could read the manual I guess...)
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09-22-2014, 04:44 PM	#22
AYF80 Major 81 Rep 1,142 Posts Drives: 2015 AY F80 Join Date: Sep 2009 Location: Nashville, TN iTrader: (0)	The climate control will always come on when turning On the car. Just press the AC button to off and the actual AC won't come back on unless you turn it on.
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