The menu in the old Audi a6 means "menu", that is, the content list. Different models of menu buttons have different functions. Some models don't have menu buttons, but set buttons. In general, click the menu button, and the on-board system will list all the settings in the current mode, which is convenient for the driver to set.

The display screen of driving computer, also known as multi-information display screen, displays part of the data of driving computer by screen display. Generally, driving information and multimedia information can be displayed; Most driving computers display data such as average fuel consumption, instantaneous fuel consumption, outdoor temperature, average speed, driving time and single mileage, which is convenient for drivers to grasp vehicle information in real time. The driving computer is the ECU of the car, which is generally used to control the fuel injection quantity, mixing ratio and so on. Simply put, ECU consists of microcomputer and peripheral circuits. A microcomputer is a device that integrates a microprocessor (CPU), a memory and an input/output interface on one chip. The display screen of the driving computer is a screen that displays all kinds of information of the car in operation, that is, part of the data of the driving computer is reflected by the display screen. Most driving computers display data such as average fuel consumption, instantaneous fuel consumption, outdoor temperature, average speed, driving time and single mileage. The so-called driving computer, the biggest use is to control electronic fuel injection, ABS braking and so on. Now it's all EFI cars. Moreover, the more advanced the engine, the more complicated the driving computer. The multi-function display screen is only a part of the data of the driving computer displayed on the screen. The displayed information does not mean that the driving computer is advanced.