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      09-04-2009, 04:14 PM   #60
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Drives: 2008 E92 Space Gray M3 & E36M3
Join Date: Dec 2006
Location: Greater St Louis Metro area

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Originally Posted by PencilGeek View Post
Here's some good news for older MY owners. I have an 02/2008 build, and the new controller works perfectly. No TCU upgrade required. I have the older CDMA TCU. The entire installation took 35 minutes from start to finish.

I tested all of the buttons and rotation functions. It all works perfectly. This means it is possible for older MY owners to upgrade to the new iDrive controller.

M3Post user 'lugnut' reported that he was unable to use the new controller in his 02-2008 build -- and that was supposedly including a software update and vehicle recoding. My guess is that the dealer screwed up during the software update. I know my car had a full SW update 4 months ago from the dealer.

Regardless, we now have positive confirmation that the new iDrive controller will work on a pre 02-2008 built vehicle with the CDMA TCU. I hope this is good news for all of the people who want to do this upgrade...just go to your dealer and insist on the latest software updates for your car.

BTW, I have the -309 controller if anybody needs to know.
This is indeed excellent news.
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