Audi A3 S3 8V Petrol Fuel Filler Flap Cap Cover Trim Actuator 8V5809906B

Audi A3 S3 8V Petrol Fuel Filler Flap Cap Cover Trim Actuator is an original body component from the Fuel filler flaps and accessories group, designed for vehicles with a petrol engine. It ensures a tight seal for the fuel filler, protecting the fuel system from contaminants and weather conditions, while maintaining the factory body lines of the 8V generation A3 and S3 models.

Specifications and technical data

• SKU: 8V5809906B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8V5809906B
• Substitutable numbers: 8V5809906B, 8V5 809 906 B
• Fuel type: Petrol
• Category: Fuel Flaps & Components

Purpose and technical function

The presented fuel filler flap is designed specifically for the Audi A3 / S3 8V series powered by petrol fuel. Its task is to provide stable and consistent closing of the filler area, which limits the risk of moisture, dirt, and small particles entering the area around the cap and tank neck. A properly selected flap helps maintain the correct operating conditions of the fuel system and the aesthetics of the side body panel.

Construction and body fitment

The component belongs to the Fuel filler flaps and accessories group, meaning its geometry, mounting method, and hinge range are adapted to the factory mounting points on the Audi A3 / S3 8V body. The design of the flap allows for:

• proper alignment with the fender and door line,
• easy opening and closing during daily use,
• compatibility with the original fuel filler locking mechanism.

Thanks to the preservation of the original geometry, there is no need for additional bodywork modifications or shape adjustments after installation – the flap integrates with the bodywork as intended by the manufacturer.

Performance characteristics and installation benefits

As a part intended for a petrol-powered vehicle, the flap creates a protective barrier for the critical filler area. In practice, this means:

• better protection of the tank neck against corrosion caused by water and road salt,
• reduction of dirt accumulation around the fuel cap,
• maintaining a consistent appearance of the side body section.

The used nature of the component allows for an economical replacement of a damaged or missing flap while maintaining the original manufacturing standard. This solution is particularly beneficial for accident repairs, bodywork corrections, or restoring the car to a factory-like condition.

Selection by part numbers and fuel system compatibility

The flap has a dedicated OEM part number and associated interchangeable numbers, which facilitates precise identification and selection for a specific version of the Audi A3 or S3 8V. When matching, it is worth using the manufacturer's markings to avoid problems with installation and fitment. In case of doubts regarding compatibility with the fuel system or other components of the filler area, procedures for selection by VIN or catalog numbers described in specialized technical materials may be helpful.

To better understand the relationships between the flap, the tank neck, and other fuel system components, it is worth reading the guide on diagnostics and operation of the fuel system: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Expanding repairs in the fuel filler area

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 covers, shields, or mounting accessories, check the available parts in the Audi fuel filler flaps and accessories category.

Summary

Audi A3 S3 8V Petrol Fuel Filler Flap Cap Cover Trim Actuator is a practical solution for users who want to restore proper filler protection and the aesthetics of the side body section after damage or wear of the original component. Proper fitment to the body, compatibility with the petrol vehicle's fuel system, and a favorable cost-to-functionality ratio make it a rational choice for service and accident repairs.