Headlight Module Mercedes W177 W247 LED Ballast Unit Left N/S A2479004104

Visual condition of the part

The product shows signs of use visible in the photos.

Headlight Module Mercedes W177 W247 LED Ballast Unit Left N/S is a specialized headlight controller designed for Mercedes vehicles, responsible for the precise management of the left headlight. This solution is dedicated to LED systems, allowing for the restoration of full front lighting functionality after the original module has been damaged.

Specifications and technical data

• SKU: A2479004104-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2479004104
• Substitutable numbers: A2479004104, A 247 900 41 04
• Location on the vehicle: Left
• Category: Headlight Assemblies

Purpose and function of the module

The presented control module is a component from the Front lights group, responsible for operating the left-side headlight in W177 and W247 series vehicles. As a dedicated LED controller, it manages the operation of light segments, light beam stabilization, and communication with the vehicle's onboard systems.

The left-side placement ensures proper fitment for the specific headlight, which is crucial for both the correct operation of the lighting and communication with the vehicle's electrical installation. Using the correct module helps avoid system errors and diagnostic issues.

Benefits of using an original module

Using an original headlight module in Mercedes cars offers a number of practical benefits:

• maintaining the factory operating parameters of the LED headlight,
• proper cooperation with the electrical installation and safety systems,
• stable lighting performance in various road conditions,
• reducing the risk of errors appearing in the vehicle's diagnostic system.

This component is particularly important for repairs following collisions or lighting system failures, when the goal is to restore the correct operation of the headlight without interfering with the factory installation architecture.

Characteristics and vehicle fitment

The module has been designed for installation in a specific area of the vehicle – the left side. This fitment facilitates installation and minimizes the need for additional wiring modifications. Thanks to this solution, it is possible to maintain consistency with the factory LED headlight system in the given model.

The product comes from the used OEM components segment, which means it is a part sourced from dismantling, intended for further use in another vehicle. This type of solution allows for an economical repair while maintaining the original design of the lighting system.

Professional application and service aspects

The Headlight Module Mercedes W177 W247 LED Ballast Unit Left N/S is suitable for both professional service centers and workshops specializing in the Mercedes brand. By maintaining the original control architecture, it is possible to use standard diagnostic and configuration procedures applied to these models.

When selecting the component, it is worth using the manufacturer's markings and OEM data to ensure full compatibility with the specific version of the headlight and vehicle equipment. This approach facilitates installation and reduces the time required to fit the component.

If you are planning a comprehensive repair or upgrade of the front lighting zone in your Mercedes and need other elements from the same group, such as complete headlights, control modules, or mounting accessories, check the available parts in the Mercedes Front lights category.

For those seeking additional knowledge on selecting original used parts, identification procedures using OEM numbers, and the impact of such components on the durability and precision of vehicle operation, the guide article BMW – sports performance and precision. How do original used parts extend the life of a Bavarian icon? may be helpful, as it discusses universal principles that are also useful when working with other premium brands.