HEATER BLOWING ONLY COLD AIR

  • Tiny
  • brummy
  • 2004 BMW 645
  • V8
  • 2WD
  • automatic

I have a 645 ci 2004. Just change the expansion header tank. Now the heater is only blowing cold air.

Friday, March 4th, 2011 AT 5:55 PM

1 Answer

  • Tiny
  • Dr. Hagerty
  • Expert
  • 9,705 posts

Low coolant level.

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Sunday, March 6th, 2011 AT 9:29 PM

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