How do I reset my Audi A6's MMI system?

I accidentally messed up the settings on my MMI system and now it's not functioning properly. How can I reset it to its factory settings?

To reset your MMI system, you can try pressing and holding the MENU button, the TUNE knob, and the UPPER RIGHT button on the control panel for at least 10 seconds. This should bring up a menu where you can select the factory reset option. If this doesn't work, you may need to consult your owner's manual or take your car to a certified Audi technician for assistance.

Have you tried disconnecting the battery for a few minutes and then reconnecting it? This can sometimes reset the MMI system. If that doesn't work, you may need to bring it to a dealership for further diagnostics.