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Well you know the transfer case is referred to by BMW as an Aux Transmission. Did you use to scan for codes or have a friend check with a high quality scanner ? Anyways you should if you haven’t already, download a copy of ITSA and scan for codes the official way? ITSA will tell you what’s going on at the bus levels.
Oh .... and it will allow you to reset adaptations and etc.
Last edited by marc x; 04-08-2018 at 06:52 AM..
Reason: Adding info
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