the new ecu is a 06a906018ar, so flashable via obd. The old one was a 06a906018d, not flashable via obd. I used the winmerge to compare the original files to see the differences and I have to say, each record is different
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But as I said, I actually have a finished file for a 1.8t k04 for the 06a906018d, i.e. m3.8.2. It is a shame if I have to go back to the tuner for my new control unit. I would like to learn it myself, but I have no starting point with which to start learning. I found a file that is in German and looked at it with TunerPro. Since I live in Germany I understand the language well, but as I said, what should you do with a formula if you don't know where to go.