Mercedes W204 Navigation CD Player Radio Stereo Sat Nav Head Unit A2049005112

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W204 Navigation CD Player Radio Stereo Sat Nav Head Unit is an original component from the Electronic control modules and controllers group, designed for factory installation in W204 series models. This multimedia solution integrates navigation, radio, and CD player functions, ensuring consistency with the Mercedes electrical installation and onboard systems.

Specifications and technical data

• SKU: A2049005112-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2049005112
• Substitutable numbers: A2049005112, A 204 900 51 12
• Category: ECUs & Computer Modules

Technical and functional characteristics

The presented navigation radio player has been designed as an element of the Mercedes infotainment system, with full integration with the vehicle's bus and factory controllers. The device combines navigation, radio receiver, and CD player functions in a single unit, which allows for maintaining the original cockpit appearance and operational ergonomics.

As a part from the Electronic control modules and controllers category, the module works with other onboard controllers, enabling, among other things, the display of system information, messages, and sensor data on the multimedia system screen. Thanks to this, the driver receives a consistent, readable interface without the need to use additional, non-factory devices.

Vehicle integration and installation advantages

The radio player has been developed specifically for the W204 platform, which translates into a perfect fit in terms of electrical harnesses, communication protocols, and mounting methods. In practice, this means the possibility of installation in place of the factory unit, while maintaining original connectors and brackets, without the need for installation modifications.

Key benefits of using the original module include:

• consistent cooperation with other electronic controllers in the vehicle,
• preservation of factory functionality of buttons on the console and multifunction steering wheel (if present),
• aesthetic fit to the dashboard, without visible adaptations,
• easier diagnostics using factory service tools.

Product condition and service application

The offered item is from the used OEM components group, which makes it an attractive service solution for repairs or replacement of a damaged unit in a Mercedes W204. Using the original module allows for maintaining compliance with the vehicle's factory configuration and reducing the risk of compatibility issues typical of universal replacements.

The navigation radio player will work well both as a direct replacement for a damaged unit and when restoring full functionality of the multimedia system after previous modifications. This solution is particularly beneficial for workshops specializing in the Mercedes brand and users who want to preserve the original character of the interior.

Selection by numbers and technical support

Due to the specificity of automotive electronics, when selecting this type of module, it is crucial to compare factory markings and vehicle configuration. Proper matching allows for avoiding problems with bus communication, coding, or activation of additional functions.

If you want to deepen your knowledge about the safe selection and installation of used controllers and sensors, it is worth using the Global Parts guide: Used automotive electronics – how to consciously choose modules and controllers. You will find practical tips there regarding selection by numbers, hardware and software compatibility, and the most frequently asked questions related to installation.

Expanding the electronics system in a Mercedes

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