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      12-26-2012, 05:55 PM   #82
e9012345
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Drives: e90
Join Date: Feb 2012
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Do I HAVE to drain the coolant to do this? I just got my coolant bled/re-filled an hour ago while I got my waterpump/t-stat done. I'm not really very knowledgeable about rads/oil sumps so forgive me for my retarded questions:

Why do I need to drain the coolant if this is just an oil issue.. what do they have to do with each other and why will the coolant leak out of the oil filter housing gasket?

Thanks
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