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      04-27-2019, 07:38 AM   #33
Timujin
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Drives: GMC Sierra
Join Date: Jul 2012
Location: California

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2010 BMW M3  [0.00]
Quote:
Originally Posted by EdGomez11 View Post
Quote:
Originally Posted by madrit21 View Post
Update:

So i had the transmission out and inspected. There was a broken bolt that was found. Not sure exactly where it was but the shop is strongly confident that this broken bolt inside the dct was causing the bang off a stop. Mounts were in good shape.
I'm glad i was able to find this post. I was the Tech that removed the DCT and Inspected the internal components and found the broken bolt. I've been doing a lot of digging into this issue and found the cause and affect. I will be removing the DCT out of my personal M3 and recording step by step on how to prevent this from happening. I believe that ALL the DCT transmission should be checked for this condition before the major bolt failure.
Wow!

Meanwhile, can you tell us where & why the bolt fails? Until then, I will continue to come to a complete stop & count to 3 when going from R to D & D to R. When parking the car my foot will stay on the brake while I pull the parking brake. I will say many prayers too.

Glad the bolt was found.
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