How do you make dash show mpg on Audi a4?

To display miles per gallon (MPG) on the dashboard of an Audi A4, you typically need to access the vehicle's trip computer or multi-function display. This can usually be done by navigating through the settings using the controls on the steering wheel or the infotainment system. Look for an option labeled "Trip" or "Fuel Economy," and select it to view real-time MPG information. If you're unsure, consult the owner's manual for specific instructions related to your model year.