Audi A4 B9 Fuel Feed Tank Filler Line Pipe Inlet Petrol 8W0201215AQ

Audi A4 B9 Fuel Feed Tank Filler Line Pipe Inlet Petrol is an original fuel system component responsible for the safe and leak-proof transport of fuel from the filler neck to the tank. Thanks to its factory geometry and precise fit for the A4 B9 model, it ensures stable mounting, proper fuel flow, and compliance with Audi's manufacturer requirements. This solution is intended for users who expect a technically correct repair rather than compromise aftermarket replacements.

Specifications and technical data

• SKU: 8W0201215AQ
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0201215AQ
• Substitutable numbers: 8W0201215AQ, 8W0 201 215 AQ
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function in the fuel system

The described line belongs to the Lines, Hoses, and Pipes group and is used in the petrol fuel system of the Audi A4 B9 generation. Its task is to guide fuel from the filler neck to the tank in a controlled manner, maintaining the correct flow diameter and resistance to chassis vibrations. A properly selected line in this location reduces the risk of leaks, spills, and refueling issues, which directly impacts the vehicle's operational safety.

Construction and fitment for Audi A4 B9

The fuel filler line has been designed specifically for the body geometry of the Audi A4 B9, taking into account routing through factory tunnels and brackets. The appropriately selected stiffness and flexibility of the material allow for the compensation of chassis and tank movements while maintaining a stable connection to the filler neck and fuel tank. As a result, the component works well with factory mounts, which facilitates installation and subsequent maintenance.

Performance parameters for petrol fuel

The line is designed for operation in a petrol fuel system, which means it is resistant to typical additives and operating conditions encountered in modern Audi petrol engines. The construction of the line takes into account:

• resistance to contact with petrol and its vapors,
• operation in variable ambient temperatures,
• resistance to vibrations transmitted from the chassis and drivetrain.

Such properties allow for maintaining the integrity of the fuel system and stable refueling parameters over a long period of use.

Use of used parts and service aspects

The item comes from the used parts group, which, in the case of fuel lines for popular models such as the Audi A4 B9, often represents an economically justified solution while maintaining compliance with factory specifications. A properly selected fuel filler line allows for:

• restoring the correct operation of the refueling system after mechanical damage or corrosion,
• maintaining the original routing of lines in the chassis,
• reducing installation time thanks to factory mounting points.

When replacing, it is recommended to check the condition of clamps, seals, and guide brackets to ensure full tightness and stability of the entire section from the filler to the tank.

Complementary Audi fuel system components

If you are planning a comprehensive repair or upgrade of the fuel system area in your Audi and need other items from the same group, such as additional vent lines, flexible supply hoses, or rigid pipes leading to the tank, check the available parts in the Audi Lines, Hoses, and Pipes category.

For users interested in a broader context of selecting used parts and the differences between equipment lines and sports versus standard components, the article describing the specifics of M and M Performance class components may be helpful – you can find it here: BMW M Performance: how do BMW M components differ from standard ones?.