Fuel Flap Ejector Mercedes W204 W212 Filler Stopper Buffer A2046390007

Fuel Flap Ejector Mercedes W204 W212 Filler Stopper Buffer is an original component from the Fuel filler flaps and accessories group, designed for the precise operation of the fuel filler flap in selected Mercedes C-Class and E-Class models. It ensures the flap opens and closes correctly, which translates into convenient refueling and a secure seal for the fuel filler area.

Specifications and technical data

• SKU: A2046390007
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2046390007
• Substitutable numbers: A2046390007, A 204 639 00 07
• Category: Fuel Flaps & Components

Purpose and function of the component

The fuel flap ejector is responsible for the controlled movement of the flap once it is unlocked – this component stabilizes the mechanism's operation so that the flap opens smoothly and without jamming. In Mercedes C-Class W204 and E-Class W212 vehicles, a properly functioning ejector reduces the risk of damage to the hinge, the paintwork around the filler, and the flap itself.

Using an original component from this group allows you to maintain the factory geometry and operating force of the mechanism, which is particularly important in daily use – frequent opening and closing of the flap during refueling requires stable, repeatable operation of the entire system.

Construction and fitment for Mercedes W204 / W212

The component has been designed specifically for the body architecture of the Mercedes W204 and W212, taking into account the shape of the fuel filler recess and the method of mounting the flap. As a result, the ejector works with the factory lock, hinge, and covers without the need for modifications or adjustments.

Original manufacturing ensures:

• compatibility with factory mounting points in the body,
• proper spring-action characteristics,
• stable guidance of the flap throughout its entire range of motion.

This makes installation predictable, and after replacement, the flap mechanism behaves just as it did when the vehicle left the factory.

Condition, verification, and benefits of use

The offered ejector comes from a used vehicle, which allows for an economical replacement of the component while maintaining the original quality characteristic of the Mercedes brand. This type of component is particularly useful in situations where the flap does not open fully, jams, or requires excessive force to operate.

Using a functional fuel flap ejector brings measurable benefits:

• improved refueling comfort thanks to smooth flap opening,
• reduced load on the hinge and flap lock,
• reduced risk of damage to the paintwork around the fuel filler,
• maintenance of the aesthetics and functionality of the filler area in accordance with the manufacturer's specifications.

Selecting parts by OEM and integration with the fuel system

Selecting a fuel flap ejector for a specific body version and vehicle year should be based on the OEM number and catalog data to ensure full compatibility with the filler mechanism. A properly selected component works with the lock, flap, and seals, which is important for both ease of use and protection against contaminants in the filler area.

If you want to better understand how to properly maintain the entire fuel system – from the tank, through pumps, to injectors – and how to select components by OEM numbers, the following article will be helpful: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Expanding fuel filler area service in Mercedes

If you are planning a comprehensive repair or upgrade of the fuel filler area in your Mercedes and need other elements from the same group, such as flaps, hinges, or seals, check out the available parts in the Mercedes fuel filler flaps and accessories category.

Summary

Fuel Flap Ejector Mercedes W204 W212 Filler Stopper Buffer is a practical, original component designed to restore the correct operation of the fuel filler flap in selected models of this brand. It ensures stable, repeatable mechanism operation, improves refueling ergonomics, and helps maintain proper protection of the filler area against dirt and external factors. It is a sensible choice for users who expect compliance with factory design solutions and predictable installation.