BMW E63 E63N E64 E64N LCI Filler Flap Lock Actuator 6923975

BMW E63 E63N E64 E64N LCI Filler Flap Lock Actuator is an original component from the Fuel filler flaps and accessories group, designed for precise control of the fuel filler flap locking mechanism in BMW 6 Series E63/E64 models. This used actuator ensures factory-fit, proper integration with the vehicle's electrical system, and maintains the central locking function of the flap.

Specifications and technical data

• SKU: 6923975
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6987635
• Substitutable numbers: 67116987635, 6987635, 67116923975 67110414339 67110150755, 6923975 0414339 0150755, 51257066025, 7066025
• Category: Fuel Flaps & Components

Purpose and function of the fuel filler flap actuator

The fuel filler flap actuator in the BMW E63/E64 is responsible for the mechanical locking and unlocking of the fuel filler flap in conjunction with the central locking system. A properly functioning component:

• prevents unauthorized opening of the flap while parked,
• coordinates with the vehicle's locking system,
• eliminates the problem of manually closing or locking the flap,
• reduces the risk of damage to the hinge and the fuel filler cover itself.

Thanks to its factory design, the actuator works with the original mounting and electrical harness, which facilitates installation and helps maintain the integrity of the fuel filler security system.

Compatibility, reference numbers, and identification

The offered actuator comes from the BMW parts family and is an OEM component, which means it maintains original operating parameters and complies with the manufacturer's factory standards. The part has a dedicated OEM number and associated interchangeable numbers, which facilitates selection via catalog, VIN, or by comparing it with the element removed from the vehicle.

For certainty of fitment, it is recommended to:

• compare the OEM part number with the currently installed component,
• verify compatibility in the BMW catalog or with a specialist,
• check if the vehicle belongs to the E63/E64 generation of the 6 Series.

Condition, benefits of using a used part, and installation

The actuator is offered as a used part, which allows for an economical repair of the fuel filler flap locking system while maintaining original BMW specifications. Such components, sourced from dismantling, are often chosen by professional workshops because:

• they ensure factory-fit with the bodywork and mounts,
• they retain the original operating characteristics of the mechanism,
• they allow for reduced repair costs while maintaining OEM quality.

Installation of the actuator usually involves removing the covers around the fuel filler, disconnecting the electrical connector, and replacing the unit with a functional one. Thanks to the original design, there is no need to modify the installation or create custom mounts, which shortens service time and reduces the risk of installation errors.

Importance of a functional actuator for the fuel system

A functional fuel filler flap actuator is important not only for convenience but also for maintenance – properly closing the flap limits the ingress of dirt and moisture around the cap and filler neck. This, in turn, supports long-term, stable operation of fuel system components and reduces the risk of leaks or corrosion in the filler area.

To better understand the relationships between fuel supply components, diagnostics, and selecting parts by OEM numbers, it is worth reading the guide: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. The article helps organize knowledge about the service and operation of the entire system.

Expanding fuel filler area service in BMW

If you are planning a comprehensive repair or upgrade of the fuel filler area in your BMW and need other components from the same group, such as flaps, mounts, or additional accessories, check the available parts in the BMW fuel filler flaps and accessories category.

By choosing an original fuel filler flap actuator for the BMW E63/E64, you gain consistency with the factory locking system, predictable mechanism behavior, and the possibility of a quick, technically correct repair without experimenting with aftermarket replacements of uncertain origin.