Fuel Filler Flap Mercedes Vito Viano W639 Fuel Filler Cover Trim Velvet Red 3583

Visual condition of the part

Possible scratches and paint chips – condition as shown in the product photos.

Fuel Filler Flap Mercedes Vito Viano W639 is an original fuel filler flap designed for Mercedes Vito and Viano W639 generation models, finished in the attractive Velvet Red - 3583 color. This item belongs to the Fuel filler flaps and accessories group, allowing for an aesthetic and functional replacement of a damaged flap without interfering with the body structure. The used OEM component ensures proper fitment with the bodywork and visual consistency with the vehicle's original paint.

Specifications and technical data

• SKU: A6397500304-VR
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6397500304
• Substitutable numbers: A6397500304, A 639 750 03 04, BG
• Color: Velvet Red - 3583
• Category: Fuel Flaps & Components

Purpose and technical function

The described fuel filler flap has been designed specifically for the Mercedes Vito and Viano W639 platform, which guarantees consistent geometry, the correct sheet metal bending radius, and compatibility with the factory hinge and opening mechanism. The element serves a protective function for the fuel filler, securing the cap and filler neck against dirt, moisture, and mechanical damage resulting from daily use.

The flap is a body component operating in an area exposed to frequent contact with fuel, road chemicals, and varying weather conditions, which is why using an original component is important for the durability of the paint coating and the proper operation of the opening mechanism.

Color and visual fitment

The finish in the Velvet Red - 3583 shade allows for maintaining color consistency with the factory body paint in the same color code. As a result, replacing a damaged flap with this item minimizes the need for additional painting, which shortens repair time and reduces service costs.

The original paint on the flap is matched to the design line of the Vito and Viano W639 models, which allows for maintaining a uniform appearance of the side body section, without differences in shade or gloss characteristic of low-quality replacements.

Installation and operational characteristics

The fuel filler flap belongs to the group of body elements that, in most cases, are installed directly using the factory hinge and mounts. Thanks to the preservation of the original geometry, it is possible to achieve:

• correct alignment of gaps relative to the fender and side door,
• trouble-free opening and closing of the flap throughout its full range of motion,
• maintenance of proper pressure against the seal in the fuel filler area.

The used OEM element is a good solution for post-accident repairs, spot body and paint corrections, and when replacing a mechanically damaged flap (e.g., as a result of snagging during refueling).

Benefits of using an original used part

Using an original fuel filler flap from dismantling allows for maintaining factory fitment and mechanism performance parameters while reducing costs compared to a new element. In the case of commercial models such as the Mercedes Vito and Viano, this is important for both aesthetics and maintaining the vehicle's value.

Choosing a used component also aligns with an eco-friendly approach – reusing functional body elements reduces the demand for the production of new parts and reduces waste. You can find more about the impact of such decisions on the environment in the article Sustainable automotive: How purchasing original used parts reduces the carbon footprint and protects the environment?.

Integration with the fuel system and part selection

Although the fuel filler flap is not a working element of the fuel system, it is important for protecting the filler area from dirt that could enter the tank during refueling. When performing comprehensive maintenance on this part of the vehicle, it is worth paying attention to the condition of the cap, the filler neck, and the surrounding seals.

If you want to better understand how to properly maintain the entire fuel system in your car, including injectors, pumps, and the tank, the guide Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration will be helpful, where you will find practical tips regarding diagnostics and operation.

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 trims, check the available parts in the Mercedes fuel filler flaps and accessories category.