Security tokens (ecu-uid) authorise ISTA and ISTA-P to write a feature into a control unit. Enter the values your session shows, or upload the token request JSON your tool exported, and download the response.
Enter the four values manually, or upload the request file your tool already generated.
We sign the request against the VIN and feature data.
Import the returned JSON into ISTA to continue the coding session.
Your ISTA/E-Sys session writes them into the token request file. If you are not sure, upload that request file — it saves typing the values by hand.
No. Token requests need the complete 17-character VIN.
The token itself is issued with its own validity period by BMW. Generate it when you are ready to code, not hours in advance.