Audi A6 C6 Door Seal Edge Guard Gasket Rear Left Right N/O/S 4F0839911B

Audi A6 C6 Door Seal Edge Guard Gasket Rear Left Right is a precisely fitted body component designed for the rear section of the vehicle, on both the left and right sides. It is responsible for a tight door closure, noise reduction, and protecting the interior from moisture, which translates into stable acoustic comfort and improved daily operation. This solution is dedicated to users who want to maintain the factory character of the car and ensure solid sealing of the door area.

Specifications and technical data

• SKU: 4F0839911B
• Mark: Audi
• Condition: Used
• OEM Part Number: 4F0839911B
• Substitutable numbers: 4F0839911B, 4F0 839 911 B
• Location on the vehicle: Rear, Right, Left
• Category: Door Seals

Purpose and function of the door edge seal

The presented seal works in the rear part of the body, on the edges of the doors on the left and right sides. Its task is to:

• limit the penetration of water and contaminants into the vehicle interior,
• reduce wind noise while driving,
• stabilize door closure and improve the perceived rigidity of the edge,
• protect the paint at the contact point between the door and the body.

Thanks to its appropriate profile, the seal works with the Audi A6 C6 door structure, ensuring consistent fitment with factory body components.

Compatibility and fitment for Audi A6 C6

The seal has been designed specifically for the Audi A6 C6 generation model, which allows for maintaining the original geometry of adhesion to the door edge. The placement on the vehicle covers the rear axle, both the right and left sides, so the element can be used when replacing the seal on one side or as part of broader service work on both sides of the vehicle.

Such fitment reduces the need for modifications and allows for installation based on factory mounting points, which is beneficial for both workshops and users servicing the car themselves.

Performance characteristics of the component

As an element from the Door seals group, the product is responsible for maintaining proper sealing of the side body area. In practice, this translates into:

• more stable operating conditions for electrical installations in the doors due to reduced moisture,
• reduced risk of rear window fogging,
• more uniform door closing, without excessive play at the edge.

This is particularly important in vehicles operated in variable weather conditions, where door tightness has a direct impact on the durability of the interior.

Condition and service application

The seal is a used item, which makes it an attractive solution for users looking for an economical alternative while maintaining the original origin of the part. This type of component will work well for:

• local repair after a collision or mechanical damage to the door edge,
• gradual renovation of the rear body section,
• restoring factory tightness after years of operation.

Selecting the seal according to the manufacturer's part number allows for precise matching to a specific Audi A6 C6 configuration, without the need to experiment with replacements of uncertain geometry.

Support in selection and additional information

When choosing sealing elements, it is worth paying attention to compliance with manufacturer markings and placement on the vehicle. If necessary, you can use the OEM part number or interchangeable numbers, which facilitate verification of compatibility with a specific equipment version.

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

To better assess the cost-effectiveness of using a used element compared to a new one or a replacement, it is worth reading the guide on choosing parts – you will find a practical comparison in the article Original, replacement, or used – which car parts are the most cost-effective?.