How to troubleshoot the MMI system in an Audi A8?

My MMI system in my Audi A8 keeps freezing and the screen goes blank. How can I fix this issue?

First, try resetting the MMI system by holding down the power button for 10 seconds. If that doesn't work, check the fuse for the MMI system and replace if needed. You can also try disconnecting the battery for a few minutes and then reconnecting it. If the issue persists, it may be a hardware problem and you should bring your car to a certified Audi mechanic.