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2001 BMW 325 low radiator dash indicator

Tiny
MMCHM
  • MEMBER
  • 2001 BMW 325
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 54,000 MILES
Our overflow tank broke and was replaced and now the low radiator dash indicator stays on. We have had a new sensor just put in and it still stays on. Is it necessary to have a code cleared to clear this light? If not, what is your suggestion
Friday, May 2nd, 2008 AT 8:04 PM

1 Reply

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
There is a possibility the sensor installed is intermittent or just a bad unit. The sensor is a reed switch that recognizes a magnetized float contained inside the expansion tank and can be removed without the need to drain the cooling system. If the coolant level is normal and is working properly, try changing the sensor. Part# is 17-11-7-506-601. If that does not fix it, then the expansion tank is faulty and should be a warranty replacement item.
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Friday, May 2nd, 2008 AT 8:56 PM

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