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      03-13-2012, 06:13 PM   #9
Jax543210's Avatar

Drives: 2007 Z4 Coupe
Join Date: May 2011
Location: Jacksonville

iTrader: (0)

I took a video of the sound/noise. Doing the actual filming made me analyze how the noise appears all over again. [sadly the audio quality that my smartphone produced wasn't good enough to pick up the noise ]

The noise can not be heard when car is in park and the engine is rev'd, inside or outside of cabin.

The noise is not directly linked to RPM. If I coast at 2-3+ RPM the sound doesn't exist.

However, if I push the accelerator, while RPMs are above 2k, while driving, then the noise appears. I can make the noise come and go as I push and let go of the accelerator above 2k RPM while driving.