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Old 10-07-2012, 04:07 PM   #123
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Join Date: Sep 2012
Location: Old Greg's Cavern
Posts: 11,598
My Ride: 2004 330Ci OBM
Originally Posted by hanna View Post
Off topic: Is the exp. Tank cap known to fail? I have overhauled my cooling sys. but the cap is still original. Do I need to worry?
You should get a new cap because the seal wears out I think. The cap won't fail, but the seal is stuck in shape for the old ET.
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