Audi A6 C6 Cover Fuel Tank Filler Surround Rubber Seal 4F5809933B

The Audi A6 C6 fuel filler surround seal is an original body part designed to fit around the fuel tank cap. It ensures a tight and stable fit of the fuel filler flap, protecting the filler recess from dirt, moisture, and excessive paint wear in this area.

Specifications and technical data

• SKU: 4F5809933B
• Mark: Audi
• Condition: Used
• OEM Part Number: 4F5809933B
• Substitutable numbers: 4F5809933B, 4F5 809 933 B
• Category: Fuel Flaps & Components

Application and Function in Audi A6 C6

The presented seal is a component from the Fuel Filler Flaps and Accessories group, specifically designed to fit around the fuel filler in the Audi A6 C6 generation. Its purpose is to prevent water, mud, and road salt from entering the filler recess, helping to keep the area around the cap and metal components clean.

The appropriately chosen shape and flexibility of the rubber allow for a precise fit to the body, which translates to stable operation of the fuel filler flap during opening and closing. This reduces the risk of rattling, looseness, or unpleasant noises resulting from the flap's movement.

Construction and Material Properties

The seal is made of flexible rubber material, selected for its resistance to typical operational factors in the fuel filler area. These include, among others, variable temperatures, moisture, contact with fuel vapors, and minor road debris. This construction allows it to maintain adequate elasticity and sealing over a longer period of use.

The seal's profile is designed to:

• create a uniform contact line with the body around the fuel filler,
• limit the accumulation of water and dirt in the gaps,
• stabilize the position of the fuel filler flap relative to the car body.

As a result, this component contributes to the aesthetic appearance of the filler recess and makes it easier to keep this area clean during daily use.

Condition, Fitment, and Installation

The offered seal is a used part, meaning it comes from the disassembly of an original vehicle and retains its factory geometry and mounting method. For the user, this means the possibility of using a solution consistent with the manufacturer's design, without the need for modifications or fitting aftermarket parts of uncertain specifications.

When installing, it is advisable to pay attention to:

• thoroughly cleaning the body edges around the fuel filler,
• checking the correct positioning of the rubber profile along the entire circumference,
• testing the operation of the fuel filler flap after installing the seal (smooth opening and closing).

This approach allows for the restoration of proper protection to the fuel filler recess and reduces the risk of corrosion and accelerated wear of components in this area.

Technical Support and Selection in the Context of the Fuel System

Selecting the correct fuel filler surround components is important for the long-term, trouble-free operation of the entire fuel system. A well-sealed filler recess limits the ingress of contaminants near the cap and filler neck, which promotes stable operating conditions for the fuel tank. If you want to understand the relationships between external components and the operation of the tank and its accessories more broadly, the article will be helpful: Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair.

Expanding Work in the Audi Fuel Filler Area

If you are planning a comprehensive repair or upgrade of the fuel filler area in your Audi and need other parts from the same group, such as the filler flap, hinge, or additional sealing elements, check the available parts in the Audi Fuel Filler Flaps and Accessories category.