Audi A5 8T 2.0 Petrol Fuel Filler Flap Insert 8T8809906D

The Audi A5 8T 2.0 Petrol Fuel Filler Neck is an original part of the refueling system, designed for Audi models with a petrol engine. Thanks to its factory geometry and body fit, it ensures reliable fuel delivery to the tank and a stable connection to the rest of the system. A used component from the Fuel Tanks and Filler Necks group allows for an economical yet technically correct repair of the fuel system.

Specifications and technical data

• SKU: 8T8809906D
• Mark: Audi
• Condition: Used
• OEM Part Number: 8T8809906D
• Substitutable numbers: 8T8809906D, 8T8 809 906 D
• Fuel type: Petrol
• Category: Fuel Tanks & Filler Necks

Purpose and Function in the Fuel System

The fuel filler neck in the Audi A5 8T is responsible for the safe and sealed introduction of petrol into the tank, working in conjunction with the lines and venting components. A correctly selected part minimizes the risk of leaks, spills, and venting issues, which translates to stable operation of the entire fuel supply system.

In case of mechanical damage, corrosion, or deformation of the filler neck, replacement with an original component is crucial for maintaining the correct connection geometry and compatibility with the fuel flap and filler socket.

Benefits of Using an Original Fuel Filler Neck

Using a factory fuel filler neck for Audi ensures:

• maintaining proper fuel flow from the filler neck to the tank,
• fit with factory mounting points and body covers,
• compatibility with the existing petrol-specific fuel system,
• reduction of the risk of leaks and improper venting.

This makes the repair predictable and the installation orderly, without the need for vehicle modifications.

Technical Characteristics and Fitment

The presented fuel filler neck is a component designed for petrol fuel systems, which is important for material resistance to specific fuels and additives. The construction is prepared to work with the factory tank and lines, facilitating installation in place of a worn or damaged part.

Manufacturer markings and reference numbers allow for precise verification of compatibility with the specific Audi A5 8T configuration, which is particularly important when selecting parts by VIN or catalog data.

Component Condition and Service Application

A used fuel filler neck for the Audi A5 8T is a practical solution for post-accident repairs, mechanical damage in the vicinity of the fuel filler socket, or problems resulting from previous incorrect repairs. Choosing an original component from the aftermarket allows for maintaining the factory fuel system concept while optimizing service costs.

The part is suitable for both professional workshops and DIY users servicing their Audi, who expect parts that are consistent with factory design solutions.

Fuel System Expansion and Technical Knowledge

If you are planning a comprehensive repair or upgrade of the fuel system area in your Audi and need other parts from the same group, such as filler pipes, spouts, or connection elements, check the available parts in the Audi Fuel Tanks and Filler Necks category.

To better understand the relationships between the filler neck, lines, pump, and tank, it is worth consulting specialized literature on the diagnosis and operation of the fuel supply system – practical tips can be found in the article Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair.