How to troubleshoot issues with the MMI infotainment system in an Audi A3?

I recently encountered issues with the MMI infotainment system in my Audi A3. Whenever I try to access certain features, the system freezes or becomes unresponsive. How can I troubleshoot and fix this issue?

First, try resetting the MMI system by pressing and holding the power button for 10 seconds. If that doesn't work, check for any software updates for the system and install them. If the issue persists, it could be a hardware problem and you may need to bring your car to the dealership for further inspection.

Make sure there are no loose connections between your phone and the MMI system. Also, try restarting your phone and reconnecting it to the system. If the problem persists, try clearing the cache and data of the MMI app in your phone's settings. This usually resolves connectivity issues.