VAGCOM Codes: Troubleshooting & Diagnostics

Hello everyone, I have an Audi A3, model year 1996, with a 1.8L engine and 125 horsepower.
Do you happen to know the login code for the Audi control unit?
Or, the code needed to make changes.
I'm not talking about the program code that unlocks the program.
Thank you.
Martin.

Hello,

Have you tried the lowest option in the "General" section of the list?
http://www.obd-info.de

Best regards, Rainer.