On E70 and E71 (X5 and X6) transmission model 6HP has enhanced security so it's linked to immobilizer system.
Before engaging any gear, it compares Security Key with CAS3 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 CAS3, Keyfob and Mechatronics to us.