On F series, transmission model 8HP has enhanced security so its linked to original car, that it came with from factory.
Before engaging any gear, it compares Security Key with CAS4 / FEM and if result is negative it will not get out of Parking.

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We offer resetting and matching of Security Key in cases where used transmission (Or mechatronics) is installed on the car.

Remote customers will need to send CAS4 / FEM, Keyfob and Mechatronics to us.

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Mechatronics is mostly plastic, So its weight is up to 10 pounds.