Mercedes Vito W639 Fuel Filler Flap Cover Trim Brilliant Silver A6397540034

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes Vito W639 Fuel Filler Flap Cover Trim Brilliant Silver is an original body component from the Fuel filler flaps and accessories category, designed for Mercedes Vito/Viano W639 generation models. Factory manufacturing and the Brilliant Silver Metallic - 9744 paint finish allow for an aesthetic and technically correct replacement of a damaged fuel filler flap without the need for fitting aftermarket alternatives.

Specifications and technical data

• SKU: A6397500304-BRS1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6397500304
• Substitutable numbers: A6397500304, A 639 750 03 04, A6397540034, A 639 754 00 34
• Color: Brilliant Silver Metallic - 9744
• Category: Fuel Flaps & Components

Purpose and function of the component

The fuel filler flap in a Mercedes W639 is responsible for protecting the fuel filler neck from dirt, moisture, and mechanical damage. A properly selected flap ensures:

• visual consistency with the body line,
• stable closing of the fuel filler area,
• protection against accidental impact in the area of the fuel tank cap.

The offered cover is an OEM Mercedes part, which translates into a perfect fit for the bodywork and compatibility with the factory opening mechanism.

Brilliant Silver Metallic - 9744 color

The factory Brilliant Silver Metallic - 9744 paint is a popular silver shade used in Mercedes W639 models. Using the original color often allows you to avoid additional painting, provided that the other body elements are in the same shade and in a similar visual condition.

Thanks to this, replacing a damaged flap with the presented cover can be a quick and technically correct solution, especially in the case of post-accident repairs or localized renovation of the side body section.

Installation characteristics

The fuel filler flap for the Mercedes W639 has been designed as a component mounted in the factory location, without the need for structural modifications. This means that:

• the mounting spacing and geometry are consistent with the original flap,
• the element works with the standard hinge and opening mechanism,
• the body line and shape matched to the fender panel are preserved.

This type of solution is particularly beneficial for body and paint repairs, where precise fitment and reducing the time needed to adjust parts are crucial.

Used condition – practical benefits

The offered fuel filler flap is in used condition, which represents a reasonable compromise between repair costs and maintaining original OEM quality. A used body component allows you to:

• reduce the cost of restoring the vehicle to full visual efficiency,
• maintain factory geometry and fitment,
• preserve compatibility with the original paint in a given shade.

With proper installation and basic maintenance, a used cover can still provide long-term service in daily vehicle use.

Selection by part numbers and fuel system – additional knowledge

When replacing components related to the refueling area, it is worth paying attention to the compatibility of the part with the vehicle documentation and manufacturer numbers. It may also be helpful to understand how the entire fuel system interacts with the tank and filler. A detailed discussion of operating principles, diagnostics, and component selection by VIN and manufacturer numbers can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

How to care for a used fuel filler flap

To maximize the service life of a used fuel filler flap, it is worth applying basic maintenance procedures:

• regular cleaning of the fuel filler area to remove dirt and fuel residue,
• periodic protection of the paint edges with protective agents,
• checking the operation of the hinge and opening mechanism to avoid excessive stress.

Additional practical tips regarding the operation and maintenance of dismantled parts can be found in the guide How to extend the life of used car parts?, which discusses proven methods of caring for body components and mechanical sub-assemblies.

If you are planning a comprehensive repair or upgrade of the fuel filler area in your Mercedes and need other elements from the same group, such as flaps, covers, or additional accessories around the filler neck, check the available parts in the Mercedes fuel filler flaps and accessories category.