It's so strange that different drivers get such different results with this car. I don't have MFT but after 12B37 I've noticed no substantial change in mileage, car- or hand-calculated. Just a definite worsening of shift quality.
I think this is more towards the dealer than car. Even though 12B37 didn't require a reset, I know some members were complaining of mileage afterwards (outside of those with the 6th gear issue). This leads me to believe that some dealerships are resetting the car during or after the work.
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