Audi A6 C8 Door Seal Rubber Gasket Rear Right O/S 4K0839718

Audi A6 C8 Door Seal Rubber Gasket Rear Right O/S is an original body component designed for the precise sealing of the rear right door. Thanks to its factory profile and specific fitment for the A6 C8 generation, it provides stable protection against water, noise, and contaminants, improving acoustic comfort and interior durability. This is a practical solution for users looking to restore proper body sealing after bodywork repairs or due to wear and tear.

Specifications and technical data

• SKU: 4K0839718
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0839718
• Substitutable numbers: 4K0839718, 4K0 839 718
• Location on the vehicle: Rear, Right
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Purpose and technical function

The presented seal is designed for installation in the rear right door area of the Audi A6 C8 generation. Its profile meets the manufacturer's factory requirements, allowing for the maintenance of proper adhesion geometry to the body frame and window. The carefully selected hardness of the rubber compound supports:

• limiting the ingress of water and moisture into the door interior,
• reduction of wind noise and external road noise,
• stable guidance of the door edge during closing.

As a result, the door system maintains its factory operating standards, and the vehicle interior is better protected against external factors.

Benefits of using an original Audi seal

Using an original seal in the Audi A6 C8 allows for maintaining structural consistency of the body and avoiding issues typical of aftermarket replacements with inaccurate profiles. Key advantages include:

• Factory fitment to the door shape – no modifications required, proper adhesion along the entire perimeter.
• Compatibility with factory door trims and fittings – the seal works seamlessly with original trim components.
• Visual consistency with other body seals – maintaining a uniform look for the door edges.

A component configured in this way is particularly recommended after door replacement, post-accident repairs, or when a noticeable loss of sealing is observed in the rear right part of the body.

Performance characteristics of the used component

The seal comes from dismantling, which means it is a used part that retains the functionality required for further operation. In practice, this means that:

• the working profile is already formed for the actual Audi A6 C8 door,
• the rubber material is pre-conditioned, which facilitates installation and fitment,
• the component can be an economical alternative to a new part while maintaining the original design specifications.

Before installation, standard service procedures are recommended, such as cleaning the contact surfaces and checking the condition of the door edges to fully utilize the sealing properties.

Installation and practical application

The rear right side seal is intended for installation in the factory mounting points of the Audi A6 C8. When installed correctly, it allows for the restoration of:

• the correct door-to-body alignment line,
• stable closing without excessive resistance,
• even pressure distribution along the entire seal perimeter.

Restoring these factory conditions is important for both driving comfort and the protection of upholstery elements and electrical installations located within the door.

Related components and maintenance

When working on the rear right body area, it is worth paying attention to the condition of other door seals and window guides to avoid localized leaks. If you are planning a comprehensive repair or upgrade of the window and door sealing area in your Audi and need other parts from the same group, such as additional edge seals, window trim strips, or sealing profiles, check the available parts in the Audi window seals and trim strips category.

To better utilize the potential of dismantled parts and maintain their efficiency for a longer time, proven cleaning procedures and periodic maintenance of the rubber and mating components can be helpful – you can find practical tips in the article How to extend the service life of used car parts?.