Noise Suppresion Filter Mercedes CLA C117 C217 W222 Antenna Module A2229820004

Noise Suppresion Filter Mercedes CLA C117 C217 W222 Antenna Module is a specialized component from the Electronic control modules and controllers group, responsible for reducing interference in the antenna circuit and stabilizing the operation of radio systems in Mercedes vehicles. This used module allows for the technical repair or replacement of the factory interference filter while maintaining the original architecture of the electrical installation. It is a practical solution for workshops and users who want to restore the proper operation of electronics without interfering with the wiring harness.

Specifications and technical data

• SKU: A2229820004
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2229820004
• Substitutable numbers: A2229820004, A 222 982 00 04
• Category: ECUs & Computer Modules

Purpose and function of the module

The presented antenna interference filter has been designed for Mercedes models from the CLA C117, C217, and W222 families, where stable operation of radio and communication systems is essential. Its task is to limit electromagnetic noise generated by the vehicle's installation, which translates into a more predictable antenna signal and improved comfort when using multimedia systems.

Thanks to its factory design, the module works with the original vehicle installation without the need for additional adapters or modifications. This solution is particularly valued in professional workshops, where consistency of results and compliance with the manufacturer's factory standards are important.

Benefits of using the antenna interference filter

Using this filter in the antenna system allows for the reduction of typical problems associated with interference in the radio path. In practice, this means:

• more stable radio signal reception in daily use,
• reduction of interference originating from the vehicle's electrical system,
• maintaining consistency with the factory architecture of electronic systems,
• the possibility of technical repair without using universal solutions.

For the user, this means more convenient vehicle operation, and for the workshop – a predictable assembly and diagnostic process. The original module from the electronic control group also facilitates subsequent service, as it remains compliant with the manufacturer's technical documentation.

Assembly characteristics and service application

The antenna interference filter is a component designed to work within the vehicle's existing antenna system, which allows for its replacement as part of standard service procedures. Thanks to the design intended for specific Mercedes models, the installation is orderly, and the risk of incorrect connection is minimized.

In workshop applications, the module will prove useful both for typical replacement of a damaged component and for more complex electronic system repairs, where it is necessary to restore proper interference filtration in the antenna path. The used condition allows for an economical approach to repair while maintaining the original operating characteristics of the system.

Mercedes electronic control modules and controllers – expansion and repairs

If you are planning a comprehensive repair or upgrade of the onboard electronics in your Mercedes and need other components from the same group, such as antenna modules, comfort controllers, or other filtering systems, check out the available parts in the Mercedes electronic control modules and controllers category.

More about used automotive electronics

When selecting used electronic modules, it is worth paying attention to their intended use, compatibility with the vehicle's installation, and installation method. If you want to better understand when choosing used electronics is technically and economically justified, how to evaluate controllers, comfort modules, or auxiliary system components, check out the article A second life for electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, where you will find practical tips and examples of applications.