Audi A4 B8 Filler Lock Petrol Fuel Flap Cap Locking Mechanism Diesel 8K0862153D

Audi A4 B8 Filler Lock Petrol Fuel Flap Cap Locking Mechanism is an original locking mechanism designed for the refueling system in Audi vehicles. This component is responsible for securely locking the fuel filler flap, protecting the cap and the filler neck against unauthorized access and accidental opening while driving. Thanks to its factory design, it ensures proper integration with the vehicle body and the central locking system.

Specifications and technical data

• SKU: 8K0862153D
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0862153D
• Substitutable numbers: 8K0862153D, 8K0 862 153 D
• Fuel type: Petrol
• Category: Fuel Tanks & Filler Necks

Purpose and function in the fuel system

The presented locking mechanism is part of the Fuel tanks and filler pipes group, responsible for the controlled opening and closing of the fuel filler flap. In combination with the cap and the filler pipe, it forms a cohesive system for securing the refueling area, which is important both for fuel protection and for maintaining the tightness of the filler area.

The solution has been designed for petrol-powered vehicles, which guarantees compatibility with the filler design and body geometry in the relevant versions of the Audi A4 B8. The mechanism works with the factory lock control, ensuring that the flap operation is intuitive – working in sync with the vehicle's other locks.

Construction and fitment for Audi

The fuel filler flap lock mechanism is constructed as a component mounted in the immediate vicinity of the filler neck, with the cable or actuator routed in such a way that it does not interfere with the fuel pipe or body elements. Properly selected mounting points ensure stable seating and repeatable bolt operation with every opening and closing cycle.

Thanks to the use of solutions compliant with the manufacturer's standards, the lock maintains the correct geometry relative to the flap, which minimizes the risk of jamming, failure to close, or excessive play. This is particularly important in vehicles used daily, where the fuel flap is regularly operated during refueling.

Benefits of using an original mechanism

Using a factory-original Audi A4 B8 Filler Lock Petrol Fuel Flap Cap Locking Mechanism allows you to maintain the integrity of the entire refueling system and preserve the functionality intended by the manufacturer. Key benefits include:

• Precise fitment to the body and fuel flap, without the need for mounting modifications.
• Integration with the existing central locking system, which facilitates daily vehicle operation.
• Proper bolt movement guidance, reducing the risk of damage to the flap or paintwork.
• Consistency with other elements of the Fuel tanks and filler pipes group, which facilitates diagnostics and potential future repairs.

This item comes from the segment of original used parts, which allows you to combine an attractive cost with the preservation of the design intended by the vehicle manufacturer.

Application in petrol vehicles

The mechanism has been developed for petrol-powered cars, which is significant for the shape and sealing of the filler zone. Proper fitment to the fuel type helps maintain appropriate operating conditions in the vicinity of the filler neck and improves user comfort during refueling.

When replacing the fuel filler flap lock, it is worth paying attention to compatibility with the fuel type and body construction to avoid problems with installation and flap operation. The original mechanism for petrol versions of the Audi ensures predictable behavior and repeatable performance over the long term of operation.

Technical support and selection of fuel system components

When planning service work within the refueling system – including the flap lock, cap, filler pipe, or the tank itself – it is worth using reliable sources of knowledge. Detailed information on diagnostics, selection by identification numbers, and operating principles can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which discusses practical aspects of working with fuel system components.

Related Audi category items

If you are planning a comprehensive repair or upgrade of the fuel filler area in your Audi and need other components from the same group, such as filler pipes, necks, or mounting elements, check the available parts in the Audi Fuel tanks and filler pipes category.