Here is a guide post to use lonsdor k518ise programming Audi A6l smart key.
Step 1. Read Immodata
Select Immobilization -> AUDI -> IMMO5 -> immobilizer/Smart key
Select “Backup immodata”
Press “OK ” to continue
Reading data, please wait…
K518ise read Audi VIN, CS and PIN, then save immo data as bin format and confirm.
Backup data success.
Step 2. program key
Select ” learn key ”
Select bin file.
K518ise display the VIN code information, press ” OK ” to continue
Switch ignition ON. If all keys lost, turn on car headlamps and step on the brakes.
Select key number to program
Follow the lonsdor k518ise instruction below to insert key to be learned into ignition switch in turn and switch ignition ON.