BMW Z4 Series E85 E86 Cabrio Roadster Filler Flap Actuator 8377426

BMW Z4 Series E85 E86 Cabrio Roadster Filler Flap Actuator is an original fuel system component responsible for the precise opening and closing of the fuel filler flap in your roadster. Thanks to its factory BMW design, the actuator works seamlessly with the vehicle's electrical system, ensuring secure locking of the flap and convenient operation during refueling. This practical solution improves the daily use of the car and helps maintain proper protection of the fuel filler.

Specifications and technical data

• SKU: 6987628
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8377426
• Substitutable numbers: 67118377426, 8377426, 67116987628, 6987628
• Category: Fuel Filters

Function and role of the fuel filler flap actuator

The fuel filler flap actuator in the BMW E85 Z4 is a component that works with the central locking system and the vehicle's electrical body system. Its tasks include:

• mechanically locking the fuel filler flap when the vehicle is locked,
• releasing the flap lock when the car is unlocked,
• stable operation in varying temperature and humidity conditions,
• maintaining the correct position of the locking pin relative to the flap.

Thanks to this solution, fuel filler operation is fast and predictable, and access to the fuel cap remains protected against unauthorized opening.

Why it is worth using an original BMW actuator

In the case of components related to the fuel system and filler protection, it is particularly important to maintain factory operating parameters. The original BMW actuator ensures:

• compatibility with the electrical system and central locking control,
• proper fitment to the mounting points in the BMW E85 Z4 body,
• correct cooperation with the fuel filler flap mechanism,
• consistency with the factory logic of the comfort system.

By choosing this component, you gain stable operation of the flap locking mechanism and reduce the risk of problems with closing or accidental opening of the filler while driving.

Condition, fitment, and service application

The offered actuator comes from the original BMW parts group and is intended for use in the E85 Z4 model, where maintaining the factory method of fuel filler flap locking is required. This type of component is suitable both for the typical replacement of a worn-out actuator and for repairs to the electrical system in the fuel filler area.

In practice, the actuator is mounted in the wheel arch area and interacts with the flap via an extendable locking pin. A correctly selected component allows you to avoid problems such as no response when locking the car, the flap getting stuck in the closed position, or it opening freely despite the vehicle being locked. It is a functional addition to the fuel filler security system, important from the point of view of operational safety.

Support with selection and the fuel system in practice

When selecting elements related to the fuel supply system – such as flap actuators, filler components, or security elements – it is worth relying on catalog data and manufacturer markings. Helpful information regarding diagnostics and operation of the fuel system can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, where, among other things, the principles of selecting parts by manufacturer markings and practical service tips are described.

Expanding work within the BMW fuel system

If you are planning a comprehensive repair or upgrade of the fuel supply area in your BMW and need other components from the same group, such as filter housings, filter cartridges, or additional mounting elements, check the available parts in the BMW Fuel Filters category.