2001 BMW E46 BLOWER FAN WILL WON'T SHUT OFF

  • Tiny
  • kingmoku
  • 2001 BMW E46

Electrical problem
2001 BMW E46 6 cyl Four Wheel Drive Automatic 91000 miles

Recently, the blower fan (AC fan) will not shut off even after removing ignition key. The final stage resistor (blower regulator) was replaced a month ago. What part could be bad? I was googling, some said it could be stuck relay, but I can't seem to find where the relay is or it even exists. Please help!

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Thursday, July 8th, 2010 AT 7:36 AM

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  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,717 posts

The part you replaced, was it new from BMW? It may be defective. There isn't a relay. Remove the unit and inspect, if it has a metal case or if you installed a used part, that is where the issue most likely is located. Another method I use is to remove the final stage and if it is hot, it is possibly a defective unit.

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Thursday, July 8th, 2010 AT 12:41 PM

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