How do I reset the MMI navigation in my Audi A4?

I've been experiencing some issues with my MMI navigation system in my Audi A4. How can I reset it to resolve these problems?

To reset the MMI navigation in your Audi A4, start by turning on the car and waiting for the MMI system to fully initialize. Then, press and hold the MENU button for at least 8 seconds until the MMI system reboots.

Another option is to disconnect the car battery for a few minutes and then reconnect it. This will also reset the MMI navigation system.

If the above methods do not work, you may need to visit your local Audi dealership for further assistance.