If your windshield tends to fog up when your BMW 2002 heater or defroster is on, you may have a pinhole leak in your heater core. Verify this by feeling into the heater and defroster outlets for moisture and for slime buildup. Since gaining access to a six-cylinder heater core is next to impossible, I resorted to Bar's Stop Leak. Added to the cooling system, this compound sealed the heater core leak instantly. Now I just hope that it doesn't plug up the rest of the system.
Author: Steve Brenneman
Now that the heater core leak is plugged, the rest of that compound is wandering around in your cooling system looking for a place to stick itself. Now is the time to backflush the cooling system to get rid of the excess sealer. You should have no problems after that.Tech Ed.
For the love of classic BMW 2002s everywhere. Copyright 2012 02Restoration.com. All rights reserved.
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