Successfully programmed Volkswagen Vento 2016 MQB48 smart key (add a spare key) using xhorse vvdi key tool plus.
in this model does not ask for sync data it is still 4th generation.
megamos MQB 48 chip.
requires License from mqb48.
MCU processor: Renesas A2C00889000
Read immo data method: lift pin
Read immo data you will get CS and PIN, generate dealer key and learn key.
full procedure is similar to this