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Audi A2 2018 all Keys lost, I have read eeprom + immo data from original working key. Lonsdor and VVDI2 ask me sync file, but I haven’t any sync file. How to do?


There are 2 options:
1, buy a dealer key from Audi then use immo data to learn key.
2, use a MQB all keys lost service, lots offering this service now!


Sync file has to come from a working key or online calculation.


3. To win the 2h work to read ecu motor or tcu, pay 100usd for sync file.


Lesson learned! ( always save sync file when doing spare key jobs)
 
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