Got a VW Golf 7 with various problems which were diagnosed as the central electrics module that had failed.
Client sourced second hand central electrics module that we fit and coded to the vehicle.
These units have component protection meaning that normally a second hand part cannot be used .
We were able to to adapt the component protection , parameterise the unit and code it.
The keys also needed to be synced as the original central electrics module held the key coding.