Seal Mercedes W166 Fuel Filler Neck Flap Profile Seal Gasket A1664710180

Seal Mercedes W166 Fuel Filler Neck Flap Profile Seal Gasket is a precisely fitted body component responsible for tightly closing the fuel filler flap and protecting the recess from moisture and contaminants. Thanks to the use of the original geometry designed for the W166 series, this Seal Mercedes W166 Fuel Filler Neck Flap Profile Seal Gasket allows you to restore the proper fit of the flap and reduce the risk of corrosion in the filler area. It is a practical solution for users who want to maintain the functionality and aesthetics of their Mercedes bodywork.

Specifications and technical data

• SKU: A1664710180
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1664710180
• Substitutable numbers: A1664710180, A 166 471 01 80
• Category: Boot & Hatch Lids

Purpose and function of the fuel filler flap seal

The presented rubber seal is a component from the Trunk lids and rear parts category, operating in the immediate vicinity of the fuel filler. Its task is to:

• limit the ingress of water, mud, and road salt into the filler recess,
• stabilize the position of the fuel flap relative to the body panel,
• reduce unwanted vibrations and rattling of the flap while driving,
• maintain an even gap between the flap and the bodywork.

A properly selected seal helps maintain a consistent appearance of the side body section and supports long-term anti-corrosion protection in the filler area.

Benefits of using the original rubber seal

The original design intended for the Mercedes W166 series ensures a fit to the factory fuel flap housing without the need for modifications. In practice, this means:

• easier installation in place of an old, perished, or damaged seal,
• preservation of the factory body line in the fuel filler area,
• material consistency with other rubber elements in the rear part of the vehicle.

For workshops and private users, this is a convenient solution that allows for the controlled restoration of the original sealing parameters in the rear body zone.

Product characteristics and condition

The fuel filler flap rubber seal belongs to the group of wear-and-tear components that naturally degrade over time due to atmospheric factors and the mechanical operation of the flap. Using a part from the same product line as the factory original helps to reduce problems such as:

• failure of the fuel flap to close properly,
• excessive play and noise when driving on uneven surfaces,
• increased dirt accumulation around the fuel filler.

The offered item is in used condition, which represents a reasonable compromise between repair costs and maintaining the original assembly specifications. It is a practical option for drivers who want to restore the correct operation of the fuel flap without investing in a complete replacement of larger body sections.

Support with selection and additional information

If you are planning a comprehensive repair or upgrade of the rear body zone in your Mercedes and need other components from the same group, such as trunk hinges, limiters, or additional mounting elements, check the available parts in the Mercedes trunk lids and rear parts category.

For repairs carried out on short notice, it is worth considering the use of readily available original parts from the secondary market. How this affects vehicle downtime in the service center and maintenance costs is described in the article: Availability of car parts off the shelf vs. repair time – how used OEM parts shorten workshop stays?.