Mechanics

FAN SPEED

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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Snagg 750
February 10, 2011.



The blower motor resister would be the most likely there.

Wrenchtech
Feb 10, 2011.
No resistor, that model used the "sword" P/N 64118390015

Dr. Hagerty
Feb 11, 2011.
Different name, same job

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

Wrenchtech
Feb 11, 2011.
What's in a name anyway. Just call it schwartz for that matter.

Dr. Hagerty
Feb 11, 2011.