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      10-26-2011, 07:11 AM   #1
CombatNinja
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Does your climate control adjust fan speed on AUTO?

Mine won't and I'm sure it is not working properly. I can set both sides to 63 degrees, AC on, AUTO pushed in and the damn fan will just blow on the 2 or 3 bar setting. Does anyone else experience this? Car is a 2009 e91 328.
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      10-26-2011, 07:58 AM   #2
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Mine adjusts
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      10-26-2011, 08:04 AM   #3
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mine adjusts, what is the outside air temp when it does this.
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      10-26-2011, 08:16 AM   #4
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Quote:
Originally Posted by CombatNinja View Post
Mine won't and I'm sure it is not working properly. I can set both sides to 63 degrees, AC on, AUTO pushed in and the damn fan will just blow on the 2 or 3 bar setting. Does anyone else experience this? Car is a 2009 e91 328.
Depends on inside cabin temp it will fluxuate to keep temp in check.
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      10-26-2011, 08:19 AM   #5
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total temp differential from outside to inside and the solar sensor affect speed.
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      10-26-2011, 08:34 AM   #6
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Mine adjusts and straight blasts me.
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      10-26-2011, 08:42 AM   #7
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all depends on outside air... if you set it to 63 and it is 52 outside, its gonna blow heat. the car uses a lot of sensors to figure out what temp and what fan speed.

begins on page 19 of this attachment...
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File Type: pdf manuals-3er-e90-17.pdf (633.7 KB, 403 views)
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      10-26-2011, 11:20 AM   #8
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Quote:
Originally Posted by CombatNinja View Post
Mine won't and I'm sure it is not working properly. I can set both sides to 63 degrees, AC on, AUTO pushed in and the damn fan will just blow on the 2 or 3 bar setting. Does anyone else experience this? Car is a 2009 e91 328.
The fan speed will adjust, but that five (six?) bar display will not change.

The display is not an indicator of current fan speed when in Auto mode, it is RELATIVE fan speed. The system lets you adjust the fan speed for a given temp setting. Not trying to be "one of those forum guys" but this is explained quite well in the owner's manual.

Now it may be that you really do have a problem, because if the car is really warm inside, cranking the temp down in Auto should cause gale-force winds out of the fan. But the display won't change.
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      10-26-2011, 11:36 AM   #9
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Quote:
Originally Posted by mike3000fl View Post
all depends on outside air... if you set it to 63 and it is 52 outside, its gonna blow heat. the car uses a lot of sensors to figure out what temp and what fan speed.

begins on page 19 of this attachment...
Agree. It uses sensors, and depending on outside / inside temperature car should do all mamba-jamba automatically.
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      10-26-2011, 04:27 PM   #10
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My fan won't blow harder unless I turn it to MAX, otherwise, it is just a weak whisper of air. And this is when it is damn hot in the car, 80+ degrees outside and the car has been sitting for hours. Another thing I noticed is when the summer was in full swing, I could drive around for 30+ minutes with the AC on MAX and never really get comfortable.
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      10-26-2011, 06:50 PM   #11
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Quote:
Originally Posted by krhodes1 View Post
The fan speed will adjust, but that five (six?) bar display will not change.

The display is not an indicator of current fan speed when in Auto mode, it is RELATIVE fan speed. The system lets you adjust the fan speed for a given temp setting. Not trying to be "one of those forum guys" but this is explained quite well in the owner's manual.

Now it may be that you really do have a problem, because if the car is really warm inside, cranking the temp down in Auto should cause gale-force winds out of the fan. But the display won't change.
This for late models (2010? and up). The display relates to "intensity of Auto Climate Control."


On earlier E9x (06, 07, 08-09?) models, however, these same fan buttons override Auto and increase fan speed, with the display indicating fan speed.

Last edited by BimmerEnthusiast99; 10-26-2011 at 07:42 PM.
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      10-26-2011, 07:14 PM   #12
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Quote:
Originally Posted by krhodes1 View Post
The fan speed will adjust, but that five (six?) bar display will not change.

The display is not an indicator of current fan speed when in Auto mode, it is RELATIVE fan speed. The system lets you adjust the fan speed for a given temp setting. Not trying to be "one of those forum guys" but this is explained quite well in the owner's manual.

Now it may be that you really do have a problem, because if the car is really warm inside, cranking the temp down in Auto should cause gale-force winds out of the fan. But the display won't change.
Unless this is a new feature it sounds like your car is not working properly, in auto mode, set temp, bar display changes accordingly showing the fan speed trying to get to desired temp.

I think you are trying to be "one of those forum guys" lol j/k.
But your car is broke.
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      10-26-2011, 07:37 PM   #13
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Quote:
Originally Posted by J02 335i View Post
Unless this is a new feature it sounds like your car is not working properly, in auto mode, set temp, bar display changes accordingly showing the fan speed trying to get to desired temp.

I think you are trying to be "one of those forum guys" lol j/k.
But your car is broke.

He's right for late models. Your's is different. See #11
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      10-26-2011, 07:59 PM   #14
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Quote:
Originally Posted by J02 335i View Post
Unless this is a new feature it sounds like your car is not working properly, in auto mode, set temp, bar display changes accordingly showing the fan speed trying to get to desired temp.

I think you are trying to be "one of those forum guys" lol j/k.
But your car is broke.
Nope, your car is OLD. And while I certainly could be wrong, I believe the OPs '09 should work the same way as my '11.
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      10-26-2011, 08:04 PM   #15
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Quote:
Originally Posted by BimmerEnthusiast99 View Post
He's right for late models. Your's is different. See #11
Yeah I would have seen post #11 if you had not have edited it after my post
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      10-26-2011, 08:05 PM   #16
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Quote:
Originally Posted by krhodes1 View Post
Nope, your car is OLD. And while I certainly could be wrong, I believe the OPs '09 should work the same way as my '11.
Yeah its old but it works like they should
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      10-26-2011, 10:09 PM   #17
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Quote:
Originally Posted by J02 335i View Post
Yeah I would have seen post #11 if you had not have edited it after my post
I edited it because I had explained it poorly the first time, same content, better explanation---geez.
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      10-26-2011, 11:17 PM   #18
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What about the air adjustment knob on top of the radio or below iDrive. If it is set to red (warm air blowing) but the AC is set to a cold temperature, the car will casually "warm the car up to 63 degrees" while actually cooling it down through other air vents for an overall temperature of 63.
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      10-26-2011, 11:56 PM   #19
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Do you have iDrive? In my iDrive menu under the climate menu there's is an option on how hard you want the fan to blow. Look in the automatic program section. I have mine set on moderate but there is a low and high setting too. Perhaps yours is set to low.
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      10-27-2011, 12:24 AM   #20
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Quote:
Originally Posted by Royal Flush View Post
Mine adjusts and straight blasts me.
same thing for me in florida summers
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      10-27-2011, 04:06 PM   #21
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Quote:
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Do you have iDrive?
No iDrive here. Does repeatedly pushing auto on a non-iDrive car adjust this intensity as well (assuming not)?
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      10-27-2011, 07:33 PM   #22
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Quote:
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Does repeatedly pushing auto on a non-iDrive car adjust this intensity as well (assuming not)?
That, I do not know. Perhaps someone more knowledgeable will chime in.
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