How can I reset my Audi A4's onboard computer?

I recently purchased a used Audi A4 and I want to reset the onboard computer to erase any previous settings and data. How can I do this?

To reset your Audi A4's onboard computer, you can try disconnecting the battery for a few minutes and then reconnecting it. This should reset the computer and erase any previous data.

You can also try using a diagnostic tool like a VAG-COM to reset the onboard computer. This will give you more control over which specific settings and data are reset.