I have no idea where to even start...
1st STOP messing with your ca you will cause more damage...
2nd sound like a bus issue what is your voltage at the K-bus splice.
3rd STOP TRYING to program things this WILL NOT fx your issue. VIN mileage ext in the cluster have nothing to do with your issue!
Service Manager/BMW Tech
JB Eurotech Service "Your Reasonable Dealer Alternative"
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