Here is the instruction showing the capabilities of the Xhorse VVDI2 VAG key programmer: Reading EEPROM with EZS Audi A6 / Q7.
How to read eeprom from EZS AUDI by OBD with VVDI2:
Select Key Learn->4th immobilizer system- Audi-> A6L/Q7/Allroad
A6L/Q7/Allroad EZS-Kessy (J518) 4th immobilizer system
Select Auodetect from engine (ECU)
reading data, please wait
Reading data success
Read and save EZS-Kessy EEPROM (J518)
Start security login
Reading data…
Reading data success
Save eeprom
click on Read VIN
VVDI2 Read Audi VIN successfully.