E46Fanatics - View Single Post - DIY: Thermostat Replacement with pics
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Old 03-31-2011, 09:00 PM   #40
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Join Date: Oct 2008
Location: Texas
Posts: 106
My Ride: 330i
U have to find the leak u r letting air into the system which causes overheating (boiling water idea) check the air relief valve right above reservoir. Again find the leak u can damage the heads if it gets to hot
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