12-05-2012, 10:19 PM
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#2
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Registered User
Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 5,172
My Ride: '06 330CiC, '03 M5
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Likely your friendly mechanic topped off the cooling system??
Unless your mechanic knows BMW's if they filled the expansion tank up to the top, you have your answer.
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