Mercedes W204 Fuel Flap Tank Cap Cover Mountain Grey Metallic 787 A2047540009

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W204 Fuel Flap Tank Cap Cover Mountain Grey Metallic in Mineral Grau Metallic B39 is an original body component designed for the rear section of the vehicle. Thanks to the factory paint in a shade of grey, it perfectly matches the body's styling lines, ensuring a cohesive look and proper closure of the fuel filler area. It is a practical solution for post-accident repairs, bodywork and paint corrections, or replacing a damaged flap.

Specifications and technical data

• SKU: A2047540009-MG
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2047540009
• Substitutable numbers: A2047540009, A 204 754 00 09
• Location on the vehicle: Rear
• Color: Mineral Grau Metallic - B39
• Category: Fuel Flaps & Components

Technical specifications and fitment

The offered cover belongs to the Fuel filler flaps and accessories group and is factory-designed for the specific body geometry of the Mercedes C-Class W204 generation. Its placement in the rear of the vehicle requires precise alignment with the fender line and the flap mechanism; therefore, using an original component ensures correct gaps, smooth opening and closing, and proper adherence to the bodywork.

The color Mineral Grau Metallic - B39 is a popular metallic grey shade used on Mercedes models, which provides an aesthetic match to the factory paint without the need to experiment with the shade. In the case of a local repair, this limits the scope of paint work and facilitates a consistent visual effect.

Function in the fuel system and bodywork

The fuel flap plays an important role in both protecting the fuel system and securing the bodywork:

• it shields the cap and filler neck from water, road salt, and contaminants,
• it stabilizes the fuel filler area, reducing the risk of corrosion around the filler opening,
• it affects the aerodynamics and continuity of the side body surface,
• it maintains the visual consistency of the vehicle's side line.

When replacing a damaged flap, it is important that the new component is structurally compatible with the original – this helps avoid issues with closing, rubbing against the body, or leaks in the filler area.

Color and visual aspect

The metallic paint in Mineral Grau Metallic provides a characteristic, slightly shimmering structure that blends well with the W204 body line. When installed correctly, the cover creates a uniform plane with the fender, which is particularly important for post-collision repairs or replacing a component after mechanical damage.

Choosing a component in the correct color reduces the need for full repainting, which shortens repair time and decreases the risk of shade differences between the new part and the rest of the bodywork.

Condition, origin, and advantages of the used OEM part

The component comes from Mercedes as an original part, which means it retains factory dimensions, mounting points, and material characteristics. For fuel flaps, this is significant for the proper operation of the opening mechanism, hinge performance, and long-term stability.

As a used OEM part, it represents a favorable compromise between cost and quality – you receive factory fitment and compatibility with the body structure without the need for cheaper replacements with uncertain geometry. If you want to better understand when it is worth choosing an original second-hand part, the article 5 reasons why a used OEM part is a better choice than a replacement will be helpful.

Practical installation and maintenance tips

When installing the fuel flap on a Mercedes W204, it is worth paying attention to:

• correct alignment of the hinge relative to the body,
• checking the operation of the spring or opening mechanism,
• inspecting the gaps between the flap and the fender after tightening the mounts,
• the condition of the seals around the fuel filler neck.

For a full understanding of the role of the filler area in the entire fuel system – from the tank to the engine supply components – you can use the advice contained in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses diagnostics and component selection by catalog numbers.

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 additional flaps, covers, or protective accessories, check the available parts in the Mercedes fuel filler flaps and accessories category.