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      07-16-2018, 08:28 AM   #7
Boland01
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Drives: 2010 535ix, 2008, 2007 335i
Join Date: Sep 2013
Location: Magnolia, TX

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Quote:
Originally Posted by feuer View Post
Build date has nothing with n54 having oil cooler or not. Oil cooler helps but easiest would be tune that will run coolant pump harder to keep temperatures down.
Actually on the sport models the build date does have a bearing on whether it came with an oil cooler or not. Sport models with a build date of 04/2007 or later are supposed to come with the cooler. In our case, unfortunately ours was built 03/2007 and it didn't. Missed it by one month.
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