Mercedes Vito Viano W639 Fuse Box Cover Trim Panel Lid Housing A6395450403

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes Vito Viano W639 Fuse Box Cover Trim Panel Lid Housing is an original electrical system component designed to protect and provide an aesthetic finish to the fuse module. Thanks to its factory-fit design, it ensures secure mounting, proper cable routing, and an organized look for the mounting compartment. It is a practical solution for users who want to restore full functionality and visual consistency to their vehicle's electrical system.

Specifications and technical data

• SKU: rhd-A6395450403-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6395450403
• Substitutable numbers: A6395450403, A 639 545 04 03
• Category: Fuses & Fuse Boxes

Purpose and function of the component

The fuse box cover for Mercedes Vito and Viano W639 models is responsible for the mechanical protection of the fuse module against accidental damage, dirt, and unauthorized access. This component stabilizes the position of the box, reduces the risk of loose connections, and supports proper ventilation of the space where electrical components operate.

As a part of the Fuses and fuse boxes group, the cover works with factory mounts and original clips, which facilitates service and access to the installation during diagnostics or fuse replacement.

Construction and fit for Mercedes Vito / Viano W639

This component has been designed specifically for the electrical architecture of the W639 generation, ensuring correct edge alignment, mounting holes, and support points. The geometry of the cover is adapted to the shape of the fuse box and surrounding body elements, which minimizes stress and reduces the possibility of looseness during operation.

Its original Mercedes origin means consistency with factory quality standards, as well as compatibility with factory brackets, clips, and guides provided for this vehicle generation.

Benefits of using an original fuse box cover

Using a dedicated cover in the electrical system provides a number of practical benefits:

• maintaining proper protection of connectors and fuses against dust and minor contaminants,
• preserving the factory layout of harnesses and wires within the box,
• easier diagnostics thanks to a predictable disassembly and assembly method,
• a consistent, organized look of the mounting compartment,
• reducing the risk of accidental contact with live components.

For users who value technically correct repairs and compliance with the manufacturer's service documentation, choosing an original cover is a safe and predictable solution for long-term operation.

Condition, origin, and service application

The component comes from a dismantled Mercedes vehicle, which allows for compliance with factory assembly specifications. A used fuse box cover is a good choice in situations where the previous element has cracked, deformed, or been lost during previous repairs. This allows for restoring the full functionality of the cover without having to resort to unreliable replacements.

In workshop practice, such a component works well both for standard maintenance repairs and for more extensive work related to upgrading or expanding the electrical system in Vito and Viano W639 models.

Expanding the electrical system in Mercedes Vito / Viano

If you are planning a comprehensive repair or upgrade of the electrical system area in your Mercedes and need other elements from the same group, such as additional boxes, sockets, or protection modules, check the available parts in the Mercedes Fuses and fuse boxes category.

For extensive service work, it is also worth paying attention to the selection of original components in other vehicle systems. In the context of repairs related to the drivetrain, an article describing the advantages of using factory components may be helpful – more information can be found in the material on choosing a used OEM drive axle instead of an unreliable replacement.