Water/radiator light goes on and off

2001 BMW 325
145,000 MILES
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RCHARTMAN1
  • MEMBER
  • 1 POST
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.
Jun 18, 2013 at 8:40 PM
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DOCHAGERTY
  • ✓Experienced Mechanic
  • 9,606 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
Jun 19, 2013 at 6:44 AM
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