Mercedes-Benz C W204 Digital Audio DAB Receiver Control Unit Module A2048705490

The Mercedes-Benz W204 DAB Control Module is an original part from the Electronic Control Modules and Controllers category, designed to support digital DAB radio in vehicles of this series. It's a solution for users who want to restore the proper functioning of their factory multimedia system or enhance their existing setup with a digital tuner function. By adhering to manufacturer specifications, the module ensures consistency with the car's electrical architecture and stable operation of comfort and infotainment systems.

Specifications and technical data

• SKU: A2048705490
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2048705490
• Substitutable numbers: A2048705490, A 204 870 54 90, KZ
• Category: ECUs & Computer Modules

Technical Characteristics of the DAB Control Module

The presented controller belongs to the group of Electronic Control Modules and Controllers, responsible for communication between the digital DAB tuner and other vehicle systems. The component works with the car's data bus, integrating with the factory radio, display, and audio system. The OEM construction ensures proper operating parameters, compliant with the vehicle manufacturer's requirements, which minimizes the risk of software conflicts and errors in the onboard network.

The module has been designed specifically for the Mercedes-Benz W204 platform, thus maintaining appropriate mounting points, connectors, and communication logic. In practice, this means it can be used as a service part for DAB system repairs, without the need for installation modifications or adapters.

Application and Integration in the Vehicle

The Mercedes-Benz W204 DAB Control Module serves as the central hub for digital radio signal reception in the DAB standard. It is responsible for:

• processing the digital radio signal and transmitting it to the head unit,
• interacting with the factory user interface (display, console buttons),
• communicating with other controllers via the vehicle's data network,
• coordinating functions related to the reception and switching of digital stations.

Thanks to its factory origin, the module maintains compatibility with the vehicle's original software, facilitating its coding and adaptation in a service center. Proper selection by OEM number and interchangeable part numbers allows for matching the controller to the specific vehicle equipment configuration.

Benefits of Using an Original Mercedes Module

Using an original DAB controller in a Mercedes-Benz W204 offers a range of practical service and user benefits:

• Consistency with Factory Installation – no need for modifications to wiring harnesses, connectors, or mounting points.
• Predictable System Behavior – the module operates within the parameters set by the vehicle manufacturer.
• Easier Diagnostics – full compatibility with factory diagnostic tools and service procedures.
• Seamless Integration with Other Controllers – reduced risk of conflicts in the vehicle's electronic network.

A component from this category is particularly recommended for multimedia system repairs where stable communication between controllers and maintaining full audio system functionality are crucial.

Used Control Electronics – Technical Support

For electronic control modules, such as the DAB controller for the Mercedes W204, a conscious approach to selection, installation, and potential programming is key. We recommend consulting the Global Parts guide, which discusses compatibility, part numbers, and practical examples of using used controllers and sensors: Used automotive electronics on board – why choose second-hand ECU modules and sensors.

If you are looking for other parts from the Electronic Control Modules and Controllers category designed for vehicles of this brand, check out the Mercedes Electronic Control Modules and Controllers available in our assortment to select a component tailored to your car's specific configuration.