Audi A5 8T 6 Disc CD Changer Magazine Head Unit MMI 8X0035110B

Audi A5 8T 6 Disc CD Changer Magazine Head Unit MMI is an original multimedia system component designed for the factory MMI setup in Audi models. As part of the Electronic control modules and controllers group, it ensures stable operation of the CD changer and integration with other vehicle controllers. This is a solution for users who want to restore the full functionality of the factory audio system without interfering with the wiring.

Specifications and technical data

• SKU: 8X0035110B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8X0035110B
• Substitutable numbers: 8X0035110B, 8X0 035 110 B, CX-CA1992G
• Category: ECUs & Computer Modules

Purpose and function in the MMI system

The described control unit is responsible for operating the six-disc CD changer within the MMI system, working in conjunction with other comfort and infotainment modules in the Audi. This component manages communication with the control panel, display, and data bus, ensuring the driver receives a consistent and predictable multimedia interface.

Thanks to the factory architecture, the module is ready for operation in the vehicle's original installation, which allows for maintaining system integrity and avoiding problems typical of non-factory solutions.

Advantages of using an original Audi module

Using an original module from the Electronic control modules and controllers group ensures:

• compatibility with factory MMI software and other controllers in the vehicle,
• correct operation of the six-disc changer without the need for additional installation adaptation,
• consistent performance with the factory sound system and user interface,
• diagnostic capability using standard Audi service tools.

For the user, this means predictable system behavior, no conflicts with other modules, and easier serviceability in the future.

Component characteristics and installation

As a factory component from Audi, the module has been designed for operation in a demanding automotive environment, taking into account vibrations, temperature changes, and continuous communication over the data bus. The design provides for installation in the original location intended by the manufacturer, which facilitates service and reduces the time required for replacement.

The item comes from dismantling, which allows for an economical repair of the multimedia system while maintaining factory specifications. Before installation, a standard diagnostic procedure and, if necessary, adaptation in the vehicle in accordance with service procedures are recommended.

Application in service and tuning practice

Modules from the Electronic control modules and controllers group are often used not only for repairs but also for equipment upgrades, e.g., when restoring the full functionality of the factory audio system after previous modifications. Using a verified component from dismantling allows for cost reduction while maintaining compliance with the vehicle's original architecture.

If you are interested in a broader context of using used electronic modules in modern premium cars, it is worth reading an article describing the servicing of multimedia systems and controllers in BMW – you can find it here: how to take care of iDrive systems and electronic modules with used parts.

For those planning wider vehicle modifications, including improving equipment while maintaining reasonable costs, the following guide may also be helpful: tuning with used components without losing reliability.

Expanding the control system in Audi

If you are planning a comprehensive repair or upgrade of the multimedia and comfort control area in your Audi and need other elements from the same group, such as control modules, head units, or additional controllers, check the available parts in the Audi electronic control modules and controllers category.