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      11-28-2017, 02:55 AM   #20
beecee
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Drives: 2014 BMW 435i coupe m sport
Join Date: Aug 2017
Location: Croydon

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Quote:
Originally Posted by Kaneda215 View Post
I got around to having some videos taken on two separate occasions. The sounds heard while stopping/accelerating are almost identical to what I hear inside the cabin.

This does sound like the exhaust valve flap opening. It's weird because I went to bmw for this same "problem" and they couldn't seem to diagnose the problem but then I looked on YouTube and found what it was.
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