Mercedes W204 Sat Nav Radio CD Player Radio Head Unit A2049005410

Mercedes W204 Sat Nav Radio CD Player Radio Head Unit is an original component from the Electronic control modules and controllers group, designed for the factory multimedia system in Mercedes vehicles. This solution allows you to restore full functionality of the navigation, radio, and CD player, while maintaining consistency with the factory electrical installation and interior design.

Specifications and technical data

• SKU: A2049005410
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2049005410
• Substitutable numbers: A2049005410, A 204 900 54 10, A2049011803, A 204 901 18 03, A1729022904, A 172 902 29 04
• Category: ECUs & Computer Modules

Purpose and function of the device

The radio player with navigation for the Mercedes W204 class is responsible for operating the audio system, satellite navigation, and integration with other comfort modules in the vehicle. As an element from the electronic control unit group, it works with the CAN bus, ensuring stable communication with the display, the control panel on the console, and steering wheel buttons, if present in the specific car configuration.

The device is designed as a factory module mounted in the center console, which facilitates its replacement in case of failure of the existing radio or if you wish to restore original equipment after previous modifications.

Key technical advantages

As a Mercedes brand product, the radio player with navigation stands out for its perfect fit to the vehicle's electrical installation and electronic architecture. Thanks to this:

• it ensures compatibility with factory wiring harnesses and connectors,
• it enables cooperation with existing control modules in the vehicle,
• it limits the risk of communication errors in the vehicle network after proper coding,
• it allows maintaining a consistent dashboard appearance without the need for adapters.

The radio player also acts as a control unit for the multimedia system, which simplifies diagnostics and service compared to universal solutions.

Operational characteristics and installation

The element is intended for installation in place of the factory radio in Mercedes W204 models, maintaining the original mounting points. In practice, this means it can be used as a replacement for a damaged module without the need to interfere with the structure of the center console.

Before installation, it is recommended to:

• verify compatibility with the vehicle's equipment based on the part number and car configuration,
• check if the vehicle has the appropriate installation for the navigation system,
• plan for any necessary coding or adaptation in the vehicle after replacing the module.

This approach helps to reduce installation time and avoid communication problems between electronic modules.

Product condition and benefits of choosing used electronics

The offered radio player is an item in used condition, which represents a reasonable compromise between purchase cost and functionality. A used OEM module allows you to maintain factory build quality and fitment, while reducing costs compared to a new part from an authorized service center.

If you want to better understand when choosing a used control module is cost-effective and what to look for when buying automotive electronics, check out our guide: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?

Expanding the electronics system in your Mercedes

If you are planning a comprehensive repair or upgrade of the onboard electronics in your Mercedes and need other elements from the same group, such as comfort modules, multimedia controllers, or driver assistance system control units, check the available parts in the Mercedes electronic control modules and controllers category.

For those interested in the broader context of the development of electronic solutions in this brand, a review of flagship model generations may also be helpful: The evolution of the Mercedes S-Class: from W140 to W222 – innovations, model differences, and Mercedes auto parts over the years.

Summary

Mercedes W204 Sat Nav Radio CD Player Radio Head Unit is a factory multimedia module from the Electronic control modules and controllers group, designed to restore or maintain full functionality of the audio and navigation system in your Mercedes. Choosing an original, used component allows you to maintain compatibility with the vehicle's installation, a consistent interior look, and predictable behavior of electronic systems after proper installation and configuration.