Mercedes W177 Fuel Fill in Flap Cover Cap Cosmic Black Metallic 191 A1777571700

Mercedes W177 Fuel Fill in Flap Cover Cap Cosmic Black Metallic is an original body component designed for the rear section of the vehicle, ensuring a seamless body appearance and proper coverage of the fuel filler. Thanks to the factory paint in the Cosmic Black Metallic - 191 shade, the cover integrates harmoniously with the body lines, facilitating an aesthetic replacement of a damaged part. It is a practical solution for users who want to maintain the original character of their Mercedes without the need for additional painting.

Specifications and technical data

• SKU: A1777571700-KB
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1777571700
• Substitutable numbers: A1777571700, A 177 757 17 00
• Location on the vehicle: Rear
• Color: Kosmos Black Metallic - 191
• Category: Fuel Flaps & Components

Technical characteristics and purpose

The offered cover belongs to the Fuel filler flaps and accessories group and is dedicated to the W177 body type, i.e., the latest generation of compact Mercedes A-Class models. The component is mounted in the rear part of the vehicle, in the fuel filler area, where it is responsible for covering the refueling neck and maintaining the continuity of the side body panel surface.

The original Mercedes origin ensures the maintenance of factory dimensional tolerances, correct sheet metal bending radii, and an edge profile consistent with the body line. As a result, the cover does not protrude after proper installation, does not cause stress in adjacent panels, and works with the standard opening mechanism.

Color and visual fit

The factory paint in the Cosmic Black Metallic - 191 shade allows for an aesthetic replacement of a damaged or scratched cover without the need to repaint the entire element. The metallic black characteristic of this color reference ensures consistency with other body panels, which is particularly important for post-accident repairs and visual corrections.

Choosing a component in an identical color reduces the risk of shade differences, typical when repainting, and shortens repair time. This is a beneficial solution for both body shops and individual users who want to restore the vehicle to a condition close to factory-new.

Condition, functionality, and service application

The cover is offered as a used part, which in practice means it comes from disassembly and may show signs of wear consistent with the vehicle's age. At the same time, it retains full functionality in terms of fuel filler protection and compatibility with the standard hinge and opening mechanism. It is a reasonable choice for repairs where combining original geometry with a favorable purchase cost is key.

The component will work well in situations such as: local damage to the side panel near the fuel filler, corrosion or cracking of the existing cover, as well as during vehicle reconstruction after a collision. Using an original cover makes it easier to maintain proper gaps between body elements and ensures the correct operation of the flap during daily refueling.

Support in selection and integration with the fuel system

When selecting a fuel filler cover for a specific body version, it is worth verifying compatibility by VIN or part numbers to avoid installation problems. In case of doubts regarding the complete handling of the refueling zone and connection with fuel system elements (cap, hoses, tank), a guide describing the construction and operation of the entire system will be helpful. Detailed information can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, where diagnostics, component selection by VIN/OEM, and proper operation principles are discussed.

Complementary Mercedes body components

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