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X5 E70 (2007 - 2013)
E70 BMW X5 produced between 2007 and 2013. Discuss the E70 X5 with other BMW owners here.

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  #1  
Old 08-04-2010, 08:03 PM
kaiserbox kaiserbox is offline
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Location: Phoenix
 
Join Date: Aug 2010
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Mein Auto: 2002 X5 4.4
Exclamation Blower Motor Stays On After Car is Off

I have a 2002 BMW X5 4.4, when I turn the car off, the blower motor stays on, indefinitely (this is not the 16 minute delayed cool-down fan), and the ac does not work, and the climate control panel is black. this is the blower located just behind the dash board, propels air for AC. Key is out of the ignition, and I hear the fan, but no air is coming out of the vents. A second symptom (same problem I believe), when the key is in ignition and the car is on, the climate control panel is black, dead, no life, and my AC/heater is not operational, with or without the car being on. I replaced the FSU (Final Stage Unit, aka: Final Stage Resistor, aka: the hedgehog) - that seems to be the common recommendation, but in the case of myself and two others, that does not fix the problem. I have heard someone say it's due to a "sticky relay", but I have yet to discover which and where a relay is that affects the blower (I removed every relay from the trunk (passenger side), and under the hood (also passenger side), and the blower continued to blow. For any of you having this problem and want to save your battery, the blower fuse can be pulled out (located inside the glovebox, fuse furthest right and down).

Those are my symptoms, I have seen two other people in the world of Bimmer forums with these same symptoms, and no answers as of yet. FSU doesn't fix it, and it doesn't seem to be a fuse issue (I checked both AC fuses in the glove box)...

Please Help!

Thank you.

Last edited by kaiserbox; 08-04-2010 at 08:05 PM.
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  #2  
Old 08-04-2010, 09:27 PM
ard ard is online now
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Location: Sierra foothills
 
Join Date: Jul 2009
Posts: 10,123
Mein Auto: '12 X5 35d/E39M5/996TTX50
Have you looked at a schematic for the blower?!?

Second, a dead AC system is NOT a reported symptom of the FSU issue. I'm going to guess your climate control module is out... but you are now into an area in which the old "look it up on the internet and throw parts at it to avoid a shop diagnostic charge" is becoming infeasible... find a good BMW mechanic, get a diagnostic done.

My 2 cents

A
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  #3  
Old 08-04-2010, 10:00 PM
Newmanium Newmanium is offline
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Location: Portland, OR
 
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Mein Auto: Zipcars
FYI: wrong forum.

This happened to me once with my 530i out of the blue - it only turned off when I actually locked the car (stayed on after killing ignition and such). Only happened once, dealer said it was a bad ground..?
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Past: 2011 X5 35d .... 2007 530i ..... 2002 530i ..... 1999 Honda Civic ..... 1990 Honda Accord ..... 2008 TSX
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  #4  
Old 08-05-2010, 12:23 AM
ard ard is online now
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Quote:
Originally Posted by Newmanium View Post
FYI: wrong forum.

This happened to me once with my 530i out of the blue - it only turned off when I actually locked the car (stayed on after killing ignition and such). Only happened once, dealer said it was a bad ground..?
Same thing? AC display dead, no AC working, etc, etc? or 'same' as in the transient blower part of it?
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  #5  
Old 08-05-2010, 08:40 AM
Newmanium Newmanium is offline
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Quote:
Originally Posted by ard View Post
Same thing? AC display dead, no AC working, etc, etc? or 'same' as in the transient blower part of it?
Just the blower part - adjusting temp, turning off AC, turning off car, nothing stopped the blower. I still think it's weird that locking the car (deep sleep) is what finally turned it off.
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Past: 2011 X5 35d .... 2007 530i ..... 2002 530i ..... 1999 Honda Civic ..... 1990 Honda Accord ..... 2008 TSX
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  #6  
Old 08-06-2010, 10:06 PM
kaiserbox kaiserbox is offline
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Location: Phoenix
 
Join Date: Aug 2010
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Mein Auto: 2002 X5 4.4
Solved: AC Control Head Failure

I don't know exactly what this means, but the dealership mechanics told me that the AC control head needs replacing: $1,100. I'm picking up the car tomorrow and will know more then.

Thanks for your replies - i'll post a report later for the benefit of anyone else out there who runs across these same wacky symptoms.
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  #7  
Old 08-06-2010, 11:34 PM
ard ard is online now
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Location: Sierra foothills
 
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Mein Auto: '12 X5 35d/E39M5/996TTX50
Quote:
Originally Posted by ard View Post
I'm going to guess your climate control module is out..
Quote:
Originally Posted by kaiserbox View Post
I don't know exactly what this means, but the dealership mechanics told me that the AC control head needs replacing: $1,100. .

Yeah.

Although I don't know why you think these are "wacky symptoms": Display dead, no control, no AC...

Oh, there is no part called "AC control head". I'd say the part is one of these:

http://www.realoem.com/bmw/showparts...57&hg=64&fg=20

$600 ish for the part. 30 minutes to install? Just guessing. Might need coding

Are you having it done? Or just got an estimate? If the latter, demand a part number for the part, assuming you were charged any labor/diagnostic fee.

A

Last edited by ard; 09-02-2010 at 01:31 PM.
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  #8  
Old 09-02-2010, 10:03 AM
D K Pierce D K Pierce is offline
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Location: Michigan
 
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Posts: 6
Mein Auto: M3 1999
Always check Ebay for BMW parts. Climate module prices are from $70. to $150. very easy to remove and install.
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