E46Fanatics - View Single Post - Heater up to 80 deg + idling = Expansion Tank Failure??
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Old 12-06-2012, 09:38 PM   #13
Registered User
Join Date: Jun 2011
Location: Manalapan, NJ
Posts: 45
My Ride: 2001 330xi
Ok. I can confirm that the date on the part was 2001, which was the year the car was built. The mechanic also told me he doesn't literally "top" it off, but rather goes by the levels indicated on diagram. For now, I'm concluding he didn't really do anything wrong, and for that poor severed expansion tank, it was its time to go.
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