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      06-18-2012, 01:12 AM   #4
queensfield
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Drives: 2006 330i E90
Join Date: Aug 2011
Location: So Cal

Posts: 343
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Mine was also bluish when I performed the flush, including the OEM coolant that I refilled. Perhaps you are looking into the expansion tank which can give a false impression of the color due to a coating BMW uses on the inside of the expansion tank.
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