Here is the tip to program VW Tiguan 2016 NEC 24C64 all smart keys lost by xhorse vvdi2 programmer.
Connect Vvdi 2 , use obd dump tool to light up the dash, back up abs code, leave the vvdi2 window open !
Take apart the cluster, read eeprom file with Vvdi prog, make service file with Vvdi 2, write service file back to the chip with Vvdi prog.
Connect to the car with vvdi2 and write back the original eeprom file via obd, read immo date, make a dealer key, reset cluster, add a key, restore abs coding, done .