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View Full Version : Heater core



97bimmerman
04-24-2012, 10:38 PM
Elli everyone, I am new to the forum, and just bought my first BMW. It is a 97 528i. Problem is I bought a fixer. Body and interior are great, but there was overheating issues. I have learned that it was air locked. Good for me. The issue I'm having is the original owner disconnected the cooling system in order to try and fix the car. Two of the heater core lines are connected, but one is not, and I have know idea where it goes. It would be the third line last on the left, I'm assuming the return line, but where does it go?