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      12-07-2018, 01:40 PM   #198
Bartledoo
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Drives: 2011 E90 M3 6MT
Join Date: Aug 2015
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Quote:
Originally Posted by 6ixSpd View Post
That doesn't make any sense at all. I'll take a look at the button assemblies and wiring to see if there's any difference, but there shouldn't be. Something is missing from the coding, I really really doubt there is more hardware differences. I fail to see how that is possible considering how that gear functions. Unless there is a pinpout difference, too...
I agree and I can't believe nobody has figured it out. It wouldn't make any sense for any other hardware differences beyond the SZL, and the button assemblies are the same (aside from the labels on each button). My only guess is some coding or wiring input related to the stereo, but I'm not expert and tried several things with no luck.
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