FAN SPEED

  • Tiny
  • snagg 750
  • 1989 BMW 750Li
  • V12
  • 2WD
  • automatic
  • 170,000 miles

I recently replaced the blower motor and the electronic controls. The blower motor only blows at one speed (med.) What other causes could there be or what else should I consider?I am considering Sword unit or blower motor resistor. Which would you think is more likely? I'm told that there is also a Aux. Fan resistor. What is this and does it have anything to do with my problem?

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Thursday, February 10th, 2011 AT 9:21 PM

4 Replies

  • Tiny
  • Wrenchtech
  • Expert
  • 20,269 posts

The blower motor resister would be the most likely there.

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Thursday, February 10th, 2011 AT 9:39 PM
  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,717 posts

No resistor, that model used the "sword" P/N 64118390015

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Friday, February 11th, 2011 AT 2:24 PM
  • Tiny
  • Wrenchtech
  • Expert
  • 20,269 posts

Different name, same job

http://i602.photobucket.com/albums/tt106/Desi501/80987364.jpg

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Friday, February 11th, 2011 AT 2:27 PM
  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,717 posts

What's in a name anyway. Just call it schwartz for that matter.

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Friday, February 11th, 2011 AT 3:24 PM

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