Mercedes W204 Navigation Radio Player Head Unit Computer A2049009907

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W204 Navigation Radio Player Head Unit Computer is a factory component from the Electronic control modules and controllers group, designed for integration with the vehicle's electrical system. It offers a seamless combination of radio functions, CD playback, and navigation support, providing the driver with convenient access to key multimedia features. Thanks to its original Mercedes origin, the module maintains compatibility with the car's electronic architecture and data bus communication.

Specifications and technical data

• SKU: A2049009907-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2049009907
• Substitutable numbers: A2049009907, A 204 900 99 07
• Category: ECUs & Computer Modules

Technical characteristics and vehicle system integration

The radio CD with navigation in this model acts as a central control module for the audio system and navigation functions, working in tandem with other controllers in the vehicle. As a component from the Electronic control modules and controllers category, it is designed to operate within the vehicle's network, utilizing dedicated communication protocols and factory connectors. The appropriate internal architecture enables the processing of signals from sensors, panel buttons, and – depending on the car's configuration – steering wheel controls.

The module's original design allows for the preservation of factory ergonomics, interface readability, and consistency with other cockpit elements. As a result, there is no need for additional styling adapters after installation, and the entire unit remains compliant with the vehicle manufacturer's specifications.

Functional features: radio, CD, and navigation

The unit combines several key onboard functions, which simplifies the vehicle's electronic configuration:

• radio signal support with the ability to select stations and save favorite channels,
• CD playback as an audio source,
• navigation functions with route presentation on the multimedia system screen,
• compatibility with the vehicle's factory sound system.

Combining these functions into a single module reduces the number of separate devices in the car and facilitates diagnostics when needed. From an operational standpoint, this means consistent control of multimedia and navigation from a single panel, which improves daily driving comfort.

Benefits of choosing an original used module

Choosing an original, used multimedia module for a Mercedes allows you to maintain the factory logic of the system and compatibility with other controllers. This type of solution is particularly beneficial for repairs when you want to ensure:

• preservation of the original interior look and fit of the panel to the center console,
• compatibility with the electrical system without the need for wiring modifications,
• maintenance of proper communication with other electronic modules in the vehicle.

A used component represents a reasonable compromise between cost and functionality, especially in the case of post-accident repairs or restoring a car to full working order after a multimedia system failure.

If you want to better understand how to safely select and install used electronic modules in a car, it is worth reading the guide: Used car electronics on board – why is it worth choosing second-hand ECU modules and sensors?

Selection, compatibility, and technical support

To ensure the system functions correctly, it is crucial to match the module to the specific vehicle configuration. In practice, this means verifying compatibility with the car's electronics, equipment version, and installation architecture. In case of doubt, it is useful to compare technical parameters and consult with a mechanic or auto electrician who can confirm the possibility of installation in a given Mercedes unit.

If you are planning a comprehensive repair or upgrade of the multimedia area in your Mercedes and need other components from the same group, such as additional controllers, comfort modules, or units responsible for vehicle network communication, check the available parts in the Mercedes electronic control modules and controllers category.

For drivers who want to reduce vehicle downtime at the workshop, the following practical material on parts logistics may also be helpful: how a wide assortment in one warehouse actually shortens your car's downtime at the mechanic.

Summary

Mercedes W204 Navigation Radio Player Head Unit Computer is an original multimedia module from the electronic control group, designed to work with Mercedes installations and controllers. It combines radio, CD player, and navigation functions into one unit, which simplifies system configuration and facilitates operation from the cockpit. Choosing this solution allows you to restore the full functionality of the factory multimedia system while maintaining consistency with the vehicle's electronics.