Mercedes W205 Rear Fuse Box Relay Power Distribution Module Unit A2055408195

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W205 Rear Fuse Box Relay Power Distribution Module Unit is an original electrical system component responsible for stable power distribution in the rear of the vehicle. Thanks to its factory design, Mercedes ensures precise fitment for electrical harnesses and proper integration with comfort and safety systems. It is a practical solution for users looking to restore full functionality to the electrical system following a failure or damage to the original module.

Specifications and technical data

• SKU: RHD-A2055408195-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2055408195
• Substitutable numbers: A2055408195, A 205 540 81 95
• Location on the vehicle: Rear
• Category: Fuses & Fuse Boxes

Purpose and function in the vehicle

The presented module is a component from the Fuses and fuse boxes group, mounted in the rear part of the body. It is responsible for powering and protecting electrical circuits by integrating fuses and relays into one compact unit. Its location in the rear area allows for shorter cable runs to receivers located at the back of the vehicle, which reduces voltage drops and improves the stability of the installation.

The module is designed specifically for the Mercedes W205 architecture, which means it maintains factory circuit distribution logic, compatibility with original harnesses, and proper cooperation with the vehicle's diagnostic systems.

Construction and technical features

The Mercedes W205 Rear Fuse Box Relay Power Distribution Module Unit combines several key functions in one housing: voltage distribution, circuit protection, and control of selected receivers via relays. The design features an organized layout of sockets, which facilitates service and replacement of individual fuses. The architecture used is consistent with Mercedes factory standards, which promotes reliability and predictable behavior of the electrical system.

The item is an original Mercedes brand component, ensuring compliance with service documentation, electrical diagrams, and diagnostic procedures used in authorized service centers and independent workshops specializing in this brand.

Condition, installation, and service application

The module is offered in used condition, allowing for economical vehicle repair while maintaining the manufacturer's original specifications. In service practice, such an element is most often used after damage resulting from electrical overloads, flooding of the luggage compartment, or mechanical damage to the installation. Thanks to its factory origin, it can be installed in place of the previous module without the need for harness modifications or interference with the body structure.

Replacing this type of component is particularly important when unstable electrical errors appear in the rear of the car, problems with powering selected receivers occur, or fuses repeatedly blow. Using an original module helps restore predictable system operation and facilitates further diagnostics.

Benefits of using an original Mercedes module

Using an original rear power distribution module in a Mercedes W205 provides several significant service and operational benefits:

• maintenance of the factory circuit layout and protection logic,
• secure fitment to harnesses and body mounting points,
• proper cooperation with the vehicle's diagnostic system,
• possibility of future maintenance in accordance with Mercedes service documentation.

For workshops and users, this means faster fault identification, easier replacement of individual fuses, and a lower risk of problems resulting from non-original solutions.

If you are planning a comprehensive repair or upgrade of the electrical zone in the rear of your Mercedes and need other elements from the same group, such as additional power modules, fuse box housings, or complete fuse assemblies, check the available parts in the Mercedes Fuses and fuse boxes category.

Additionally, if you want to better understand the importance of original OEM components in modern cars and the principles of selecting used parts by catalog numbers, a helpful article describing service practices using another brand as an example can be found here: guide to selecting used OEM parts by numbers and VIN.