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Old 05-12-2010, 12:49 AM
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Anybody have DIY directions for changing blower fan???

So I have tried 2 FSR's and still no fan. I have tried everything... replaced filter, rotated fan a couple turns to loosen it, sprayed wd40 to lube it up, checked fuses, and still nothing. After I replaced the first FSR and rotated the fan a couple of times it worked for a day and then stopped again. If anyone has directions I will replace the blower motor other wise it will have to go to the stealership. BMW just built one here in Minnetonka MN and has the "worlds largest showroom" I even think they have a movie theater in it. I guess that is why the charge $125 to diagnose what is wrong!!
Thanks guys
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Old 05-12-2010, 10:42 AM
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I haven't changed the fan but when mine didn't work after an FSR change I fed it with 12volts direct and it ran fine, turned out my problem was a dodgy connection to the FSR, cleaned out the plug and had no problems since.
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Old 05-12-2010, 10:44 AM
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Thanks for the info, ill give that a try. Do i have to cut any wires to hook up to the battery? What wires control the fan?
Thanks again!
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Old 05-12-2010, 10:49 AM
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Try reading the thread in this link, good luck

BMW X5 • View topic - X5 Internal heater problem
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Old 05-12-2010, 02:49 PM
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I will give it a try tonight, just to make sure im doing it right are the wires located by the fsr unit? and lastly what did you use to clean the hedgehog plug with? Im guessing by hedgehog plug you mean the FSR plug? Thanks again you are a ton of help. In the picture below can you explain what wires need the power?
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Old 05-12-2010, 03:17 PM
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The wires are the ones in the plug that connects to the FSR. I made a pair of copper wire links to patch from the +12V feed to the FSR to the Fan and another to the ground lines. I used the same copper links to scrape the inside of the female part of the plug to clean it

So you need to remove the plug from the FSR. Connect the Yellow/Green wire to the Red/Green using a link wire

connect the Brown wire to the Black/Green wire using a link wire

If the fan runs then its not the fan thats broke and you need to clean the connector/plug to the FSR

Last edited by sheepdip; 05-12-2010 at 03:22 PM.
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