Audi A4 B8 A6 C7 MMI Multimedia Radio Language Navigation CD Disc 4G0919884

Visual condition of the part

The product shows signs of use visible in the photos. Audi A4 B8 A6 C7 MMI Multimedia Radio Language Navigation CD Disc is a specialized media carrier designed for MMI multimedia systems in Audi A4 B8 and A6 C7 models. The navigation CD disc is responsible for handling the interface language and navigation data, ensuring consistent multimedia system performance and comfortable operation of onboard functions for the driver. This solution is dedicated to users who expect stable operation of the factory system and precise integration with the vehicle's electronics.

Specifications and technical data

• SKU: 4G0919884-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G0919884
• Substitutable numbers: 4G0919884, 4G0 919 884, 4G0919884E, 4G0 919 884 E, 8T0035613, 8T8971822
• Part type: Central Timing Module
• Category: ECUs & Computer Modules

Purpose and function in the MMI system

The presented navigation disc has been designed to work with factory MMI units used in the Audi A4 B8 generation and Audi A6 C7 generation. It is responsible for handling the interface language layer and loading navigation data into the multimedia module, which translates into the correct display of messages, menus, and maps on the system screen. As an item from the Electronic control modules and controllers group, the disc works directly with the MMI control unit, enabling its proper operation without the need for universal or non-original solutions. This ensures full compatibility with the factory software and other modules in the vehicle.

Benefits of using a dedicated navigation disc

Using a dedicated media carrier in the MMI system allows for:

• maintaining consistency in the operation of all multimedia and navigation functions,
• preserving the original appearance and menu logic,
• reducing the risk of communication errors between electronic modules,
• easier diagnostics in case of system servicing. For the user, this means stable multimedia system performance, predictable navigation behavior, and no issues with operating related functions, such as system messages or integration with other controllers in the vehicle.

Product characteristics and service application

The offered navigation disc is an aftermarket item intended for service applications in Audi vehicles equipped with the appropriate MMI version. It is effective both when replacing a damaged media carrier and when restoring full system functionality after repairs to electronic modules. Thanks to its compliance with factory control units, it can be used as a spare part in professional service centers and workshops specializing in Audi electronics. In practice, this solution is particularly useful for:

• repairs or replacement of the MMI head unit,
• problems with launching the interface or navigation functions,
• the need to reload navigation data after work on the electrical installation.

Integration with other electronic modules

The MMI system in the Audi A4 B8 and A6 C7 works with many controllers responsible for comfort, infotainment, and communication in the vehicle. Using the appropriate navigation disc supports proper data exchange between Electronic control modules and controllers, which is important for the stability of the entire system. A properly selected media carrier minimizes the risk of software conflicts and facilitates subsequent computer diagnostics. If you are planning a comprehensive repair or upgrade of the onboard electronics area in your Audi and need other items from the same group, such as comfort modules, multimedia controllers, or navigation units, check the available parts in the Audi electronic control modules and controllers category.

Substantive support and selection of used modules

When working with vehicle electronics – regardless of the brand – it is crucial to correctly select used modules and data carriers, as well as to understand their role in the system architecture. In the context of advanced multimedia systems and controllers, it is worth using reliable sources of knowledge. A good point of reference may be an article describing a practical approach to repairing iDrive modules and controllers in another premium segment – the BMW 3 and 5 series. You will find information there about diagnostics, the use of salvaged parts, and how to safely work with vehicle electronics: Driving pleasure for years – how to take care of iDrive systems and electronic modules in BMW 3 and 5 series models.

Summary

Audi A4 B8 A6 C7 MMI Multimedia Radio Language Navigation CD Disc is a practical solution for users and service centers that want to restore or maintain the full functionality of the factory MMI system. The dedicated media carrier supports the correct handling of the interface language and navigation, and its integration with Electronic control modules and controllers in the vehicle promotes stable operation of the entire multimedia system. This is a conscious choice for those who prioritize compliance with factory specifications and predictable performance of Audi electronics.