Mercedes W205 W213 C238 Power Distribution Unit Busbar Connector A2055455100

Mercedes W205 W213 C238 Power Distribution Unit Busbar Connector is an original electrical installation component designed for Mercedes C-Class, E-Class, and C238 body models. Thanks to its factory design, it ensures stable power distribution and proper cooperation with the vehicle's control modules, which is crucial for the reliability of comfort and safety systems.

Specifications and technical data

• SKU: A2055455100
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2055455100
• Substitutable numbers: A2055455100, A 205 545 51 00
• Category: Other Starters, Alternators, ECUs & Wiring

Purpose and function in the electrical system

The described power distribution unit busbar connector serves as a central power distribution point and a mounting location for relays in selected Mercedes W205, W213, and C238 models. It is responsible for organized circuit routing, minimizing voltage drops, and correctly distributing power to individual consumers.

Due to its design, which complies with factory Mercedes standards, this component allows for maintaining the original electrical architecture of the vehicle, facilitating diagnostics, service, and any potential future equipment modifications.

Advantages of using an original relay busbar

Using an original relay busbar in Mercedes vehicles provides a number of practical benefits in daily operation:

• reliable power routing in critical vehicle circuits,
• factory fitment for electrical harnesses and relay sockets,
• maintaining proper cooperation with control modules and onboard systems,
• organized assembly, facilitating service and the location of potential faults.

For the user, this means stable operation of electrical systems and a lower risk of problems resulting from incorrect power distribution or makeshift repairs to the installation.

Product characteristics and installation

The relay busbar is an electrical accessory component that integrates several power paths and relay sockets in one place. This type of solution is used in modern Mercedes vehicles to reduce wire length, improve installation clarity, and ensure high-quality connections.

The product comes from a Mercedes vehicle and is intended for installation in appropriately configured W205, W213, and C238 body versions. When replacing, it is recommended to maintain the factory wiring layout and check the condition of the connectors to fully utilize the capabilities offered by this power distribution busbar.

Condition and service application

The item is offered in used condition, which allows for an economical yet technically correct repair of the electrical installation in Mercedes cars. This type of part is suitable both for removing the effects of mechanical or thermal damage within the relay box and for restoring the original configuration after previous unprofessional modifications.

Thanks to the preservation of factory geometry and mounting points, the busbar can be installed in place of a worn or damaged component without the need for interfering with the body structure or rebuilding the harnesses.

Knowledge expansion and part selection

If you are planning a comprehensive repair or upgrade of the drivetrain and braking systems in your Audi and need other elements from the same group, such as discs, pads, or reinforced chassis components, it is worth checking out the material discussing the structural differences between standard and sports versions – you can find them in the article Audi RS vs other models – what is hidden under the hood and chassis?.

For those interested in a broader context of technology development in cars of this brand, a review of structural changes in higher classes may also be useful – they are described in detail in the article Evolution of the Mercedes S-Class: from W140 to W222 – innovations, model differences, and Mercedes auto parts over the years, which helps to better understand the philosophy of designing electrical installations and power modules in newer generations.

If you are planning a comprehensive repair or upgrade of the electrical zone in your Mercedes and need other elements from the same group, such as modules, harnesses, or additional power strips, check the available parts in the Other Mercedes category.