Adaptive transmissions are like humans they adapt to different drivers and inputs. For example you are heavy footed and like to do spirited driving but you wife drives like an old lady. The transmission adapts to the driving habits of the driver and makes changes automatically if to raise the rpm and shift points. Now when someone else drives your car the transmission does not know how that person drives therefore the car is going to lurch and think that you are the driver Because it thinks your going to floor it. Simply put it adapts to how you drive your BMW. The adaptations can be reset with a scan tool or a bav technic tool. Cheers
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