How do I reset the MMI on my Audi A6?

I accidentally changed a setting in my Audi A6's Multi Media Interface (MMI) and now everything is messed up. How do I reset the MMI to its original factory settings?

To reset the MMI on your Audi A6, first turn off the ignition and wait for 10 seconds. Then, press and hold down the MENU, CAR, and SETUP buttons simultaneously for at least 10 seconds. This will bring up the hidden MMI engineering menu. From there, navigate to the MMI reset option and follow the prompts. Once the reset is complete, turn the car back on and your MMI should be back to its original settings.