New test feedback: Lonsdor K518ISE Renault Scenic year 2015 smart key card programming success.
Select Immobilizer->Renault->Select from vehicle->Megane Scenic-> Scenic III (2009-2015)
Turn ignition to ON position
Read VIN, detect key number and ID
Insert original key card into key slot
Follow system prompt to program key
Program next key.
Insert new key card into slot and follow Lonsdor K518ISE prompts
Test the new smart key.