How to access the hidden MMI engineering menu in an Audi A5?

I've heard that there is a hidden engineering menu in the MMI system of an Audi A5 that can provide advanced vehicle diagnostics. How do I access this menu and what information can I expect to find?

To access the hidden MMI engineering menu, press and hold the CAR and SETUP buttons simultaneously for 5 seconds. You will be prompted to enter a code, which can vary depending on the model and year of your car. Once in the menu, you can check for software updates, view vehicle stats, and even adjust various settings. However, use caution when making any changes as it can impact the functionality of your car.

If you have an Audi A5 with virtual cockpit, you can access the engineering menu by pressing and holding the RIGHT SCROLL button on the steering wheel, while turning the ignition to ON. This menu also allows you to perform system updates and view diagnostic information. Just be careful not to make any changes unless you know what you're doing!