Mercedes W205 W238 Fuse Box Cover Control Unit Holder Bracket A2055400840

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes W205 W238 Fuse Box Cover Control Unit Holder Bracket is a factory-original electrical system component, specifically designed to protect the fuse module in vehicles of this series. Its robust construction ensures stable mounting, while the precise geometry facilitates installation at the original body points. As a result, this fuse box cover allows for the restoration of proper protection for wiring harnesses and electrical components following repairs or collisions.

Specifications and technical data

• SKU: A2055400840
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2055400840
• Substitutable numbers: A2055400840, A 205 540 08 40
• Category: Fuses & Fuse Boxes

Purpose and technical function

The cover acts as a protective shield for the fuse assembly, safeguarding it against dust, moisture, and accidental mechanical damage during operation and maintenance. The design is prepared for compatibility with factory clips and guides, which allows for:

• maintaining the correct routing of wires and connectors within the box,
• reducing the risk of short circuits caused by contact with foreign objects,
• easy service access while maintaining an organized workspace.

As an item from the Fuses and fuse boxes group, the cover supports the stable operation of electrical systems, including power supply for control units, comfort modules, and essential safety circuits.

Benefits of using an original cover

Using an original cover instead of a damaged or missing part helps maintain the structural integrity of the compartment where the fuse box is located. Key advantages include:

• Factory fitment – proper geometry and mounting points eliminate the need for modifications or custom brackets.
• Stable harness protection – reduction of vibrations and wire chafing in the vicinity of the box.
• Easier diagnostics – clear access to fuses while maintaining protection after work is completed.
• Consistent appearance of the mounting compartment – no makeshift solutions that could hinder service.

This used component is an excellent choice for post-accident repairs or restoring the completeness of the installation when functionality and compliance with the factory design are the priority.

Integration with the Mercedes electrical system

The cover has been designed with the specific fuse box layout used in this generation of Mercedes vehicles in mind. This means that it:

• supports the manufacturer-intended routing of harnesses and connectors,
• provides adequate workspace above the fuses and relays,
• does not interfere with adjacent structural elements or covers.

By maintaining the original mounting architecture, replacing a damaged cover with this component does not affect the operating parameters of the electrical systems, while simultaneously restoring proper protection to the service area.

Mercedes Fuses and fuse boxes – expansion and completion

If you are planning a comprehensive repair or upgrade of the electrical system area in your Mercedes and need other components from the same group, such as additional boxes, covers, or mounting brackets, check out the available parts in the Mercedes Fuses and fuse boxes category.

Technical support for electronics selection

When working with electrical systems and control modules, it is worth using reliable sources of knowledge regarding the selection of used components, hardware compatibility, and correct installation. Practical tips, configuration examples, and answers to frequently asked questions can be found in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?

Summary

Mercedes W205 W238 Fuse Box Cover Control Unit Holder Bracket is a functional, original component from the electrical system protection group, intended to restore completeness and order in the fuse area. Choosing this cover allows for a technically correct repair, consistent with the manufacturer's factory concept, which translates into more convenient service and stable operating conditions for the vehicle's electrical systems.