Mercedes W176 W204 W212 Telematics Communication Control Unit Module A2429004801

The Mercedes W176 W204 W212 Phone Communication Control Module is a specialized component from the Electronic Control Modules and Controllers group, designed for integrating the telephony and communication system in Mercedes vehicles. It enables efficient management of the car's communication functions, ensuring stable cooperation with the factory electrical system and multimedia equipment.

Specifications and technical data

• SKU: A2429004801
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2059007123
• Substitutable numbers: A2429004801
• Location on the vehicle: Front, Left, Right
• Category: ECUs & Computer Modules

Module Purpose and Function

The presented telephony and communication controller is designed as an electronic system component responsible for handling calls, integrating with the hands-free system, and cooperating with factory interfaces in selected Mercedes compact and mid-size class models. As an original electronic module, it ensures compatibility with the vehicle's installation architecture and predictable behavior within the controller network.

Its placement in the front of the vehicle, with the option of mounting on the left or right side, allows for flexible adaptation to the specific body and equipment configuration. This enables the module to be used both for replacing a damaged component and for restoring full communication system functionality after electrical system repairs.

Construction, Integration, and System Compatibility

As part of the Electronic Control Modules and Controllers category, the telephony controller communicates with other control units in the vehicle via communication buses, enabling data exchange with the multimedia system, instrument cluster, and comfort modules. The module's design includes factory connectors, which facilitates installation in place of the original component without the need for wiring modifications.

The presence of a dedicated OEM part number and interchangeable numbers (visible in the technical specifications) allows for precise verification of compatibility with the specific vehicle equipment version. This is particularly important for professional workshops where repair result consistency and reduced risk of communication errors between controllers are required.

Condition, Service Application, and Benefits of Installation

The module is offered as a used component, providing a cost-effective solution while maintaining the original manufacturer's specifications. Such controllers are frequently used in services specializing in the Mercedes brand, for both standard repairs and diagnostics of faults related to phone connectivity issues, device pairing problems, or incorrect communication system operation.

Using an original module from disassembly allows for:

• maintaining the consistency of the vehicle's electronic system,
• reducing the risk of incompatibility with other controllers,
• preserving the factory functionality of the telephony and communication system.

For workshops and users who consciously select parts, this choice represents a sensible compromise between cost and maintaining near-factory operating parameters.

Installation Recommendations and Selection by Numbers

Before installation, it is recommended to verify the module's compatibility with the vehicle based on the OEM part number and interchangeable numbers indicated in the specifications section. In many cases, after installation, adaptation or coding using an appropriate diagnostic tester is required for the controller to be correctly recognized in the vehicle network and to cooperate with other modules.

For users and services who wish to deepen their knowledge of electronic module operation and the practical use of salvaged parts in advanced onboard systems, a guide describing selection and diagnostic strategies may be helpful. Detailed guidance can be found in the article Safe Online Purchase of Used Car Parts – A Step-by-Step Guide, which discusses, among other things, selection by OEM numbers and purchasing practices for automotive electronics.

Related Modules and Communication System Development

Communication and telephony systems in modern vehicles are closely linked to other comfort and multimedia controllers. Although the discussed module is intended for Mercedes cars, many principles regarding diagnostics, replacement, and selection of electronics are universal. In the context of other brands, such as BMW, similar challenges arise when working with multimedia systems and comfort modules.

If you are interested in a broader perspective on electronic modules, their repair, and the use of salvaged parts in advanced onboard systems, it is worth reading the article Years of Driving Pleasure – How to Care for iDrive Systems and Electronic Modules in BMW 3 and 5 Series Models, which shows how to correctly utilize used controllers in modern installations.

If you are planning a comprehensive repair or upgrade of the onboard electronics area in your Mercedes and need other components from the same group, such as comfort modules, engine controllers, or multimedia units, check the available parts in the Mercedes Electronic Control Modules and Controllers category.