BMW X6 F16 2017 BDC all keys lost is done with CGDI Prog BMW programmer successfully.
Losing car keys is a frustrating experience for any car owner, and losing all keys at once makes the situation even worse. The car was towed to the shop in a locked state, so the first step is to gain access by opening the vehicle to reach its electronic control units. Information about the registered keys is stored in the BDC (Body Domain Controller) unit. Automakers take extensive measures to secure data related to the anti-theft system and key authentication. To connect to the BDC unit on the workbench, a specialized platform with a set of adapters is required. Accessing the protected data involves using a custom software version and writing an engineering dump to the EEPROM. Once inside, the information about the lost keys is erased, and new keys are programmed into the available memory slots. After programming the new keys, the original software and coding files are restored to the unit. Once the BDC unit is reinstalled, the functionality of the new keys is tested, and the car is ready to be driven again.
In general, the BDC unit serves as the central control module in the F series vehicles. If this unit is damaged due to an accident, water ingress (often caused by a poorly sealed windshield), or other issues, it must be replaced. Data from the original unit can be transferred to a used replacement unit from another vehicle. Additionally, replacing the BDC unit may be necessary during engine swaps or custom project builds.
