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      08-09-2012, 06:40 PM   #5
Tom K.
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Drives: '07 328iT, '13 Boxster
Join Date: Mar 2008
Location: Maryland

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Originally Posted by wudi13 View Post
Hey, what is normal working temperature for N54? My car takes very long to warm up, like 10 minutes at least. I wondering is there any problem with it. How long does your car take to warm up?
You have posted in the 128i forum - and we don't have oil or water temp gauges.

But to answer your question anyway, it takes about 4 to 6 minutes for the OBC in a 128i to give an oil level reading - at which point, most of us consider the motor to be properly warmed up.