The program BMW-Explorer has the ability to synchronize the variable code

In some ECUs during operation and also the replacement of DDE / DME, it is necessary to synchronize the variable code of the anti-theft alarm system CAS (EWS3)

Come into DME/DDE, select "Additional Functions" and "Synchronization of a variable code"

After the synchronization is complete, you MUST turn off the ignition for 10-20 seconds and only after that try the engine start !!!