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 is an original component from the Fuel filler flaps and caps group, designed for diesel fuel systems. Its robust construction and precise fit to the filler neck ensure a tight seal of the tank and stable operation of the fuel system in Audi vehicles and selected VW models.

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 is a component dedicated to diesel-powered vehicles, making its design adapted to the properties of diesel fuel. It is responsible for secure sealing of the filler neck, limiting fuel evaporation, and protecting the system from external contaminants. Using the correct fuel cap is important for both the durability of fuel system components and the stability of engine performance parameters.

Construction, color, and ergonomics

The cap is finished in black, allowing for a consistent match with most factory fuel fillers used in Audi and VW vehicles. The shape and profile of the part ensure a firm grip when unscrewing and tightening, which facilitates daily operation, even when wearing work gloves or in difficult weather conditions. The material used is resistant to contact with diesel fuel and typical mechanical stresses occurring in the filler area.

Benefits of using an original fuel cap

Choosing an original Audi fuel cap from the Fuel filler flaps and caps category allows you to maintain factory sealing and fitment parameters. A properly selected cap:

• reduces the risk of water, dust, and other contaminants entering the filler neck,
• supports the maintenance of proper pressure within the fuel tank,
• reduces the likelihood of fuel system-related errors,
• ensures compatibility with the factory thread and filler socket.

Thanks to this, maintaining stable operation of the fuel system is easier, and the risk of leaks resulting from the use of random replacements is reduced.

Condition, selection, and service application

The item is offered as a used part, which allows for economical repair or replacement of a missing cap while maintaining the original manufacturer's specifications. This type of component is particularly useful for:

• replacing a damaged or worn fuel cap,
• completing missing elements after bodywork and paint repairs,
• restoring full functionality of the refueling system in fleet vehicles.

Part selection is facilitated by the OEM marking and reference numbers visible in the technical specification – these allow for precise verification of compatibility with a specific Audi or VW model, minimizing the risk of ordering errors.

Integration with the fuel system and service knowledge

A properly selected fuel cap is important not only for refueling convenience but also for the diagnostics and durability of the entire fuel system. In the case of vehicles with diesel engines, it is particularly important to limit the access of moisture and contaminants, which can accelerate the wear of precision components. To better understand the relationships between the cap, tank, pumps, and injectors, it is worth consulting a specialized guide: 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 mounting elements, check the available parts in the Audi fuel filler flaps and caps category.