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Water/radiator light goes on and off

Tiny
RCHARTMAN1
  • MEMBER
  • 2001 BMW 325
  • 145,000 MILES
The radiator/water light keeps going on and off even though the water level is full and the temperature gauge reads appropriate. It only stays on for about 1 minute and then goes off and then will come on again later. Have checked the water level and its OK. The temperature gauge says the temperature is fine.
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Wednesday, June 19th, 2013 AT 3:40 AM

1 Reply

Tiny
DOCHAGERTY
  • MECHANIC
  • 9,601 POSTS
I recommend replacement of the expansion tank and inspecting the cooling system for possible issues.
The coolant level switch is within the expansion tank, it is a normal failure item
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Wednesday, June 19th, 2013 AT 1:44 PM

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