Audi A6 C6 Rear Door Seal Triangle Gasket Left N/S 4F0868381C

Audi A6 C6 Rear Door Seal Triangle Gasket Left N/S is a precision-fitted body component, designed specifically for the rear left door area of the Audi A6 C6 generation. It is responsible for a tight seal between the triangular section of the door and the bodywork, which translates into better acoustic insulation, protection against moisture, and stable window operation. As a part from the Door seals group, it allows for a technically correct repair without interfering with the door structure.

Specifications and technical data

• SKU: 4F0868381C
• Mark: Audi
• Condition: Used
• OEM Part Number: 4F0868381C
• Substitutable numbers: 4F0868381C, 4F0 868 381 C
• Location on the vehicle: Rear, Left
• Part type: Door Seal
• Category: Door Seals

Purpose and function of the triangular gasket

The presented gasket is dedicated to the rear left part of the Audi A6 C6 door, in the area of the triangular segment near the window frame. Its task is to:

• seal the contact point between the door and the body in the upper triangular zone,
• limit the ingress of water and contaminants into the door interior,
• improve cabin acoustic comfort by reducing wind noise,
• stabilize the operation of the window and elements adjacent to the door frame.

Thanks to its factory profile and properly selected geometry, the gasket works with the original door frame, ensuring consistency with the factory body construction of the Audi.

Benefits of using an original Audi gasket

Using an original triangular gasket in the Audi A6 C6 allows you to maintain the parameters specified by the vehicle manufacturer. In practice, this means:

• secure fit to the door shape – no need for cutting or modifications,
• proper cooperation with other door seals and the window frame,
• maintenance of the factory level of tightness in the rear left part of the body,
• reduced risk of corrosion around the door edge thanks to better moisture drainage.

Choosing an element from the Door seals group dedicated to a specific model minimizes installation problems and allows for a technically correct renovation of the door zone.

Installation characteristics and service application

The rear left triangular gasket is intended for installation in the factory mounting points of the Audi A6 C6 door. Its design enables:

• service replacement of a worn or leaking element without interfering with the door sheet metal,
• restoration of proper pressure within the triangular frame fragment,
• reduction of rattles, squeaks, and looseness resulting from a worn-out gasket.

This solution is particularly recommended for body and paint work, side window replacement, or comprehensive renovation of the rear left door when it is required to maintain consistency with the original Audi standard.

Condition of the element and economic application

The offered gasket comes from the used parts segment, which allows for combining functionality with a favorable repair cost. For many Audi A6 C6 users, this is a sensible service solution, enabling:

• lowering the costs of restoring door tightness,
• maintaining the original specification of the element,
• effectively extending the service life of the door zone without excessive expenses.

Such an approach is particularly attractive during comprehensive bodywork, when more than one element within the door area needs to be replaced.

If you are planning a comprehensive repair or upgrade of the door zone in your Audi and need other elements from the same group, such as frame seals, sill seals, or edge seals, check the available parts in the Audi door seals category.

For drivers considering wider use of used parts in vehicle service, additional information on the advantages of such a solution in terms of cost and quality is provided in the article Smart Skoda servicing – why second-hand parts are the best choice for your wallet, which shows a practical approach to economical car maintenance.