Is strange it would just drop out without going in to failsafe at least once..

Are you able to pull codes and see if anything is showing up? If manual mode is working it wouldn't be cable related as you have to get it into drive for the steptronic to work.

Could be a failed harness internal to the mech unit but that's really reaching without pulling codes and seeing if anything is stored.

I would say check your fluid too but that's easier said than done.

Does it work in Sport mode or Manual only? I know you said nothing in "Drive".


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