2003 BMW E46 CAR LOSING WATER

  • Tiny
  • Sihaqa
  • 2003 BMW E46

Engine Cooling problem
2003 BMW E46 6 cyl Two Wheel Drive Automatic 102000 miles

The car loses water when in motion eg if travelling at 70km/h the radiator alert will come on after a distance of about 8kms. Pressure testing was done and no problem detected. Radiator was flushed but problem still persisting. Splatters are evident on the inside of the fan closest to the radiator. When radiator alert came on, temperature gauge was just below the half-way mark, as always. Water not mixing with oil.
What could be the problem? Please help.

Tuesday, January 13th, 2009 AT 6:56 AM

2 Answers

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

Replace the pressure cap.

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Thursday, January 29th, 2009 AT 7:44 AM
  • Tiny
  • sureman73
  • Member

Sounds like the lower hose wasn't changed, I'm surprised you can't follow the leak.

Check again later, maybe when you were refilling it you let alot of air in the system and after driving it finally settled.

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Sunday, April 26th, 2009 AT 9:12 PM

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