BMW Used ECU DDE Programming Service to CAS - E90 335D E70 35D M57 DieselBMW M57 DDE Programming Service is offered to be able to program a used DDE to your original VIN and CAS Module and Key. That will allow the used ECU DDE to be synced aligned to your CAS, just like a brand new DDE, just at a much cheaper cost. No longer do you have to go to a dealer and buy a new DDE Engine Computer. You can buy a used DDE for very cheap, and have it be able to work. You also do not have to swap any keys, tumblers, CAS module like