Audi A3 8P A4 B7 Fuel Filler Neck Cap Tank Cover Diesel Black 1J0201553AE

Visual condition of the part

The product shows signs of use visible in the photos.

Audi A3 8P A4 B7 Fuel Filler Neck Cap Tank Cover Diesel Black is an original component from the Fuel filler flaps and caps group, designed for diesel fuel systems. It maintains the tightness of the filler neck, stabilizes the operating conditions of the fuel system, and helps reduce fuel evaporation during daily use. Thanks to its precise manufacturing and compliance with manufacturer standards, it serves as a functional service solution for Audi vehicles with diesel engines.

Specifications and technical data

• SKU: 1J0201553AE
• Mark: Audi
• Condition: Used
• OEM Part Number: 1J0201553AE
• Substitutable numbers: 1J0201553AE, 1J0 201 553 AE
• Fuel type: Diesel
• Color: Black
• Category: Fuel Tank Caps

Purpose and technical function

The presented cap belongs to the group of components responsible for securely closing the fuel filler in diesel-powered vehicles. Its task is to maintain controlled pressure in the tank, protect against contaminants entering the system, and limit fuel losses resulting from evaporation. The design, adapted for diesel fuel, supports the stable operation of the fuel supply system, which is important for both component durability and proper engine performance.

Construction and functional properties

The cap is made in a uniform, compact form, which facilitates installation and subsequent maintenance. The black color provides a neutral, factory-like appearance that blends well with most fuel filler flaps used in Audi vehicles. The material used is resistant to contact with diesel fuel and typical operating conditions, such as temperature changes or humidity.

As an original component from the Audi group, the cap is designed with the manufacturer's requirements for tightness, ergonomic handling, and compatibility with the filler neck in mind. This facilitates daily vehicle use and reduces the risk of problems associated with leaks or improper fitment of aftermarket replacements.

Condition, fitment, and service application

The offered cap is a used item, making it an economical solution while maintaining proper functionality. It works well as a service part in situations where the existing cap has suffered mechanical wear, damage, or loss. By maintaining the manufacturer's standard, it can be used in place of the factory component without the need for any modifications to the filler neck.

In the case of diesel fuel systems, a correctly selected cap is important for the stability of the entire fuel system. It supports the maintenance of proper conditions in the tank, which is especially important in vehicles used intensively or in varied climatic conditions.

Benefits of using an original fuel cap

• Factory fitment for the fuel filler neck in Audi vehicles with diesel engines.
• Reduced risk of leaks and contaminants entering the tank.
• Neutral, black color matching most factory filler flaps.
• Economical service solution thanks to the use of a pre-owned part.
• Support for the proper operation of the fuel system in daily use.

Related fuel system components and technical knowledge

When working on the fuel supply system, it is worth paying attention not only to the cap but also to the condition of the lines, pump, and fuel tank. For users who want to better understand the relationships between individual components, the article discussing the diagnostics and operation of the fuel system will be helpful – detailed information can be found in the material Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

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