How to reset the MMI infotainment system on an Audi A4?

Audi A4 MMI system occasionally needs to be reset if it freezes or stops responding. How can I reset it effectively?

To reset the MMI system on an Audi A4, press and hold the MENU button, the button with the volume roller, and the top right multifunction button simultaneously for 10 seconds.

If the above method does not work, try disconnecting the car's battery for 5 minutes and then reconnecting it. This should reset the system back to its default settings.