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      12-05-2012, 06:15 PM   #10
Drives: F10 M5
Join Date: Sep 2012
Location: Overland Park, KS

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Originally Posted by URBAN LEGEND View Post
What is that jet or turbine sound as you decel/downshift towards a stop light or full stop? I had the same sound on my 09 M3 DCT.

That sound was non existent on the crappy 11 550i. So we know its not the turbos.

I am thinking its the DCT tranny. Thoughts?

Love that sound BTW.
If its more noticeable when slowing quickly its probably the front brakes 'whirring' as you slow down to a stop. Fairly typical with a two piece rotor design.
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