Tank Filler Screw Volkswagen Passat B6 Audi Q2 GA Fuel Cap Cover 3C0201553K

Tank Filler Screw Volkswagen Passat B6 Audi Q2 GA Fuel Cap Cover is an original refueling system component designed for diesel-powered vehicles. It ensures a tight seal of the filler neck, stabilizing the fuel system's operation and reducing diesel fuel evaporation. Thanks to its factory design, the cap works with the filler neck geometry in accordance with Volkswagen standards, which facilitates installation and daily use.

Specifications and technical data

• SKU: 5WA201550AM
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 5WA201550AM
• Substitutable numbers: 5WA201550AM, 5WA 201 550 AM, 3C0201553K, 3C0 201 553 K
• Fuel type: Diesel
• Category: Fuel Tanks & Filler Necks

Purpose and function in the fuel system

The presented cap is a component from the Fuel tanks and filler pipes group, responsible for securely closing the filler neck in diesel-powered vehicles. Its tasks include:

• maintaining the tightness of the refueling system during daily use,
• reducing the escape of diesel fuel vapors,
• protecting against the ingress of contaminants into the filler area,
• stable cooperation with the design of the fuel tank and filler pipe.

Thanks to its compliance with the manufacturer's standards, the cap maintains the correct geometry and clamping force, which is essential for the proper operation of the entire fuel system in Volkswagen vehicles.

Compatibility with diesel engines

The component has been designed for diesel-powered vehicles, which is why its construction takes into account the specifics of diesel fuel. Properly selected materials and seal shape support:

• resistance to diesel fuel and its vapors,
• stable pressure maintenance within the filler area,
• trouble-free opening and closing during refueling.

Such compatibility promotes smooth fuel system operation and facilitates the diagnosis of potential leaks, as the cap is consistent with factory design specifications.

Product characteristics and condition

The fuel filler cap comes from the vehicle manufacturer's range, which translates into a factory fit for the filler socket and consistency with other refueling system components. As a part from the group of original Volkswagen components, it ensures:

• compatibility with the filler design used in the group's models,
• maintenance of the ergonomics of use intended by the manufacturer,
• the possibility of use in the service process as a replacement for the factory element.

The product is offered as a used original component, which allows for an economical replacement while maintaining compliance with the vehicle's factory specifications.

Benefits of using an original fuel filler cap

Using a dedicated fuel filler cap in Volkswagen Passat B6 and Audi Q2 GA cars brings a number of practical service and operational benefits:

• maintaining the factory tightness of the fuel filler,
• reducing the risk of diagnostic errors related to refueling system leaks,
• consistency with the design of the fuel tank and filler pipe,
• easier part selection in future repairs thanks to compliance with manufacturer documentation.

For workshops and users, this means predictable component behavior after installation and the ability to use standard service procedures intended for Volkswagen vehicles.

Related fuel system components and technical knowledge

If you are planning a comprehensive repair or upgrade of the refueling area in your Volkswagen and need other elements from the same group, such as caps, connectors, or sections of filler pipes, check out the available parts in the Volkswagen fuel tanks and filler pipes category.

To better understand the relationships between the fuel cap, fuel tank, pump, and injectors, it is worth consulting a specialist study. A detailed discussion of the construction, diagnostics, and selection of components can be found in the article "Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration", which facilitates making informed service decisions when working with diesel-powered vehicles.