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-   -   How hard does your A/C blow? (http://www.bimmerfest.com/forums/showthread.php?t=658958)

KaileSvick 11-18-2012 05:51 PM

How hard does your A/C blow?
 
I'm trying to figure out if I have a weak blower motor. I had a Mercedes before I bought my 7 and the a/c blew out like a hurricane on the max setting, this car is weak in comparison. How hard should the a/c blow?

hd750Li 11-18-2012 06:24 PM

Before you do anything, check cabin air filters...and the housing - maybe clogged up with dirt or debris

sirstopher 11-18-2012 08:58 PM

My AC sucked untill I registered the battery, works great now

KaileSvick 11-20-2012 06:28 AM

Quote:

Originally Posted by hd750Li (Post 7202123)
Before you do anything, check cabin air filters...and the housing - maybe clogged up with dirt or debris

My filters are pretty dirty which could be one of the problems. They will be replaced soon

KaileSvick 11-20-2012 06:29 AM

Quote:

Originally Posted by sirstopher (Post 7202344)
My AC sucked untill I registered the battery, works great now

My battery is registered. And I also checked blower output through inpa. I'm leaning more towards a weak blower motor.

djeargazm 07-16-2013 01:08 PM

Quote:

Originally Posted by KaileSvick (Post 7204770)
My battery is registered. And I also checked blower output through inpa. I'm leaning more towards a weak blower motor.

Did you every figure this out?
My blower runs very slowly too but every once in a while, it will blow you out of the seat for a while. There doesn't seem to be any rime or reason . Max AC does nothing unless the car is in the mood to make the blower spin fast which is only about 2% of the time. :thumbdwn:

KaileSvick 07-16-2013 04:09 PM

No I never did figure it out. I'm honestly not even sure how hard the ac is supposed to blow

Jsedita74 07-16-2013 11:32 PM

my AC cranks on its max setting... And Im in NYC where its been almost 100 last wk or so

Thesatman 07-17-2013 02:47 PM

Quote:

Originally Posted by sirstopher (Post 7202344)
My AC sucked untill I registered the battery, works great now

+1...there must be something that limits the blower current draw because the same thing happened to me when I replaced the battery before it was registered.

KaileSvick 07-17-2013 07:33 PM

Quote:

Originally Posted by Thesatman (Post 7716607)
+1...there must be something that limits the blower current draw because the same thing happened to me when I replaced the battery before it was registered.

It's along the lines of when the battery voltage is low on your car. Until the battery is charged its in a "reduced power mode" to conserve energy and thus the blower will only go to about half speed. Same with an unregistered battery

KaileSvick 07-17-2013 07:35 PM

Quote:

Originally Posted by Jsedita74 (Post 7715207)
my AC cranks on its max setting... And Im in NYC where its been almost 100 last wk or so

Not mine. It feels like half speed of any other car I get in.

mws 07-18-2013 03:49 PM

My 2003 760Li is a bit picky, and I have even replaced the AC pump (for a different reason). In any case, I find that the A/C does not really bump into freezing my ears off, unless I get into the car and press MAX for awhile. Then I press Auto to get the climate control to try to regulate things and it's usually so cold I have to back the climate control temp way off.

I even have situations where it says 79* F outside, and I have climate control set to Auto and 75* and it's fricking just freezing my ears off. I keep bumping it to 76, then 77, then 78, etc, to get it to back off and not freeze me.

Many times I get into the car if it's hot as hell outside and I try to use climate control, only (I don;t use MAX). I figure it MUST know it;s hot and it should blast me. It almost never does. Even set it fairly low, like say 68*F if it's 100*F outside. It does almost nothing, I might even get slightly warm air out the ducts. Then I hit MAX and it freeze me to death again, as above.

I have come to accept it.


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