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      08-14-2011, 02:19 PM   #26
Second Lieutenant

Drives: Jet Black 135i
Join Date: Jun 2011
Location: Bay Area, California

iTrader: (1)

Originally Posted by blschaefer1 View Post
I have a 2012 135i, 1700 miles, no issues whatsoever.

I do notice a rattling-type noise at cold startup. My prior M coupe did something similar. Did some research and discovered it was normal and related to the VANOS variable valve timing mechanisms prior to getting fully lubricated at cold startup. I can't hear your clip, but my hunch is that this is the same and probably normal for N55 based cars.
The noise doesnt sound normal though. My friend with a 335i or 328i doesnt have that sort of noise at all. Ill try to record a sound clip and upload it. Sorry for stealing your thread.