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  #1  
Old 10-06-2018, 10:24 AM
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HEater Blower Motor

My blower motor has stopped working. The control panel seems fine, but no function of the front blower.


What are my range of issues? I assume a bad fuse, a bad motor or I have read about a resistor that might be an issue.


Anything else I should consider?


Thanks!
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Old 10-06-2018, 12:22 PM
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Usually the FSU


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Old 10-10-2018, 06:25 PM
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Installed a new Behr FSU today. No change, so I guess it's time to dig deep into the depths of my X5......
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Old 10-11-2018, 07:07 AM
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I've replaced my blower fan; it's not particularly difficult, but the dash and most of the center console needs to be removed to get to it.
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Old 10-11-2018, 08:20 AM
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Before I'd dig into the dash to excise the HVAC blower...I'd make sure that there's nothing else easier. Did you check the fuse, yet? If not, check the fuse index in the glove box...look for the fuses for the blower (possibly F34 and F64...but check because fuse nbrs can change during the production run).
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Old 10-13-2018, 10:34 AM
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The fuses were my first stop. And yes, they are 34 and 64 on my "04.



The rear blower is working. I never noticed before, but does that always run at a single speed? It does not vary based on the control panel fan speed setting. The control panel seems to function normally.



The FSU has been changed at some time in the past. It had an updated oe unit in place. I installed a Behr unit, no difference.
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Old 10-13-2018, 11:20 AM
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HEater Blower Motor

Rear blower has its own FSU. It's inside the console. Quite variable speed. speed control is left of the vents in back temp on right iirc.
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Last edited by andrewwynn; 10-13-2018 at 11:49 AM.
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Old 10-13-2018, 03:52 PM
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Quote:
Originally Posted by ChiefRider View Post
The fuses were my first stop. And yes, they are 34 and 64 on my "04.

The rear blower is working. I never noticed before, but does that always run at a single speed? It does not vary based on the control panel fan speed setting. The control panel seems to function normally.
Yes, if optioned with the rear blower...it has a variable speed fan. See the info below from the owners manual (about AIR SUPPLY) in regards to controlling fan speed for the rear blower. To get maximum air speed from the rear vent/blower...select the front dash vents...basically deselecting the front floor and defrost vents. If you have AUTO selected up front...it will take some of the air supply and send it to the floor and defrost vents, too...thus lessening the amount of air supplied to the rear center vent. :


The THREE buttons highlighted below on the IHKA...controls the distribution of air to the windows, face vents (& rear vent), and floor vents seen in the stratifed air distribution illustration (in the 2nd pic below):



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Last edited by Qsilver7; 10-13-2018 at 04:02 PM.
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  #9  
Old 10-13-2018, 05:32 PM
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Same thing happened to me two weeks ago blower motor resistor $35 on Amazon! 15 minutes to change!
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  #10  
Old 10-13-2018, 06:13 PM
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Thanks guys. I know I should be more astute and read my owners manual. I did know from research that the rear blower has it's own FSU, and I believe based on what I have seen thus far that the blower motor is the problem.


Lately, time is the one thing I don't have, so it will go to the shop for this repair.
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