Lonsdor K518ISE Program Audi A5 5th IMMO Key by OBD

Just programmed a smart key on a Audi A5 5th generation immobilizer using Lonsdor K518ISE key programmer via OBD successfully.

Not all keys lost, working key is required.
Connect Lonsdor K518 host with vehicle via ODB diagnostic socket
Select Immobilizer->AUDI->5th IMMO->Immobilizer smart key

Backup immo eeprom data before programming

Turn ignition switch on

Reading eeprom data and save it as bin format

Backup success
Select Make Dealer Key

select eeprom data just read

Select A4L,A5,Q5 (no need original car key)

Insert the key to be programmed into Lonsdor K518ise key slot

Read and update current key information, then generate dealer key

Programming completed

Test the new smart key.
Success!
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http://www.skp1000.org/lonsdor-k518ise-adds-audi-a5-smart-key-success/