BMW X-Reihe: E70 bei CAS3 Getausch benoetig neue Getriebe?

[dlwss]

In X5 E70 von meiner Bekannter hat CAS3 kaputt gegangen. Er hat bei BMW-Haendler neu bestellt, und bei Initialization (in Auto-Modus) zuerst Software Erneuerung begonnen und dann Fehler 8021 bekommen (Getriebe Initialization unmoeglich)
BMW Elektroniker hat gesagt, dass jetzt Auto braucht NEUE Getriebe!
Wirklich muss man neue Getriebe kaufen, wenn BMW Facmann in die Ukraine seeeeeehhhhhhr schwach ist?

[730SN]

was ist CAS3---?

[dlwss]

CAS3 - Car Access System 3
The Car Access System now features the 3rd generation of control units. The electronic
vehicle immobilizer 4 (EWS 4) is also used in connection with the Car Access System 3.
The previous functions of the electronic vehicle immobilizer 3 have been retained.
The Car Access System 3 can therefore be operated together with the electronic vehicle
immobilizer 3 or 4. The digital motor electronics and the Car Access System 3 are
incorporated in the overall electronic vehicle immobilizer system in the E70.
In addition, the electronic transmission control is used as a further immobilizer in the
E70. The electronic vehicle immobilizer 4 improves the antitheft properties of the
vehicle. A longer cryptic code is used for the data exchange.
The cryptic code provides the enable to start the engine. The Car Access System 3 is
backwards compatible with the Car Access System 2. This means the functions of the
Car Access System 2 are also included in the Car Access System 3.
The electronic vehicle immobilizer 3 or the electronic vehicle immobilizer 4 is used
depending on the engine installed and the associated digital engine management.