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      07-10-2012, 01:34 PM   #4
Drives: 07 E90 335i
Join Date: May 2011
Location: socal

Posts: 387
iTrader: (4)

For some reason I've noticed a few friends with n55's that tend to have coolant problems, I would get it checked out by the dealer asap if you have been adding coolant. These leaks tend to cause even more problems if not taken care of quickly..
fiy: n54 65k miles, never had to top off coolant. Oil is another story.. : /
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