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Old 02-03-2009, 10:27 AM   #20
Registered User
Join Date: Dec 2008
Location: Dallas, TX
Posts: 182
My Ride: 2001 330i
Originally Posted by winston330xi View Post
After 4 and half hours I finally just finished replacing my expansion tank, water pump, thermostat and hoses as well as lower hose temp sensor and fluid level sensor under the exp tank. Now the low coolant indicator light is on the dash. I put back the old fluid level sensor and the dash light is still on, coolant level is full. I bled the system for air, the heat is working fine in the car. Has anybody have any ideas what is wrong? Thanks.
check the level the next day to top it off if needed

I had a low coolant light the day after, let it sit overnight on a level surface, top it off and light went off

other than that I don't know what to tell you, maybe try resetting the code if you have a scanner and see if it comes back
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