Here we go for procedure:
Audi A3 old value 400KM
Here Audi A3 MQB key front and back.
Choose option “Vehicles”
Choose “Mileage adjustment”
Choose “Audi”, then “Audi V31.55”, then loading…Initializing…Authorizing…
Choose “MQB 2014.06 -”
Message : Only MQB dashboard of mainland and VDO are supported.
Switch ignition on.
Confirm the current mileage value.
Please input the new value you would like to adjust.
Communicating… Loging system…
You will hear a ticking sound, then the dashboard lights up.
Audi A3 MQB mileage correction succeeds with OBDSTAR X300M.
OBDSTAR X300M on Audi A3 MQB Mileage correction via OBD
OBDSTAR X300 DP on Audi A3 MQB Mileage correction via OBD