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Originally Posted by dkveuro
Touch the ground/Earth to the Positive Batt+ for 10 seconds or more....with both leads disconnected from the battery...this does the trick on BMW's to reset to factory..It discharges the capacitors in the system and dumps the Adaptive memory .
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Just have to step on brake pedal to discharge any residule power.
Turn key Off for 10 sec , On for 30 for relearn and then start.