2000 BMW 323 fan

2000 BMW 323
105,000 MILES • 6 CYL • 2WD • MANUAL
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GLENN2TONE
  • MEMBER
  • 1 POST
coolant fan runs all the time . changed out senser did not help
Aug 21, 2009 at 6:05 AM
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DOCHAGERTY
  • ✓ASE Certified Mechanic
  • 9,606 POSTS
  • ASE Certified Mechanic
The auxiliary fan is controlled by a device called a final stage. It is controlled digitally and can and does often fail in a "catastrophic" fashion. The failure should first be properly diagnosed, which is impossible for me to do from cyberspace and may require some special equipment. The final stage is built into the fan and cannot be had as an individual part.
Aug 21, 2009 at 11:57 PM
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