Audi A6 C8 Door Rubber Gasket Seal Outer Rear Left N/S 4K0839717

The Left Rear Door Seal for Audi A6 C8 is an original body part from the door seals category, designed for installation on the outer edge of the left rear door. It ensures a tight seal for the door leaf, limits the ingress of water and noise, and helps maintain stable operating conditions for the locks and electrical systems within the door. This is a practical solution for users who want to restore the factory functionality and acoustic comfort of their Audi A6 C8 generation.

Specifications and technical data

• SKU: 4K0839717
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0839717
• Substitutable numbers: 4K0839717, 4K0 839 717
• Location on the vehicle: Rear, Left
• Part type: Door Seal
• Category: Door Seals

Intended Use and Fitment for Audi A6 C8

The presented seal is dedicated to the left rear door of the Audi A6 C8, mounted on the passenger side in left-hand drive versions. Its placement on the vehicle is factory-defined as the rear axle, left side, which facilitates unambiguous identification of the part when selecting body components.

As an Audi product, the seal maintains the correct geometry, profile, and flexibility intended for this model, ensuring proper adhesion to the door frame and body. This allows for the preservation of a consistent body line and correct operation of the door closing mechanism without the need for additional modifications.

Function of a Door Seal in a Vehicle Body

Door seals play a crucial role in protecting the vehicle's interior from external factors. For the Audi A6 C8, the left rear outer seal is responsible for, among other things:

• limiting the ingress of water and moisture into the space between the door and the body,
• reducing wind noise at higher speeds,
• stabilizing the door in the closed position through appropriate pressure,
• protecting paint edges from minor mechanical damage.

A well-chosen Audi door seal helps maintain cabin acoustic comfort and also supports the proper functioning of comfort systems, such as the central locking or electric window operation, by limiting the impact of moisture on mechanical and electrical components within the door.

Characteristics of a Used Part

The offered seal is a used part, sourced from disassembly. This type of component allows for economical body repair while maintaining the original manufacturer's specifications. In practice, this means:

• maintaining the factory profile and shape tailored to the Audi A6 C8 door,
• the possibility of installation in place of a worn or damaged seal without altering the door's structure,
• visual consistency with other body parts of the vehicle.

Choosing an original, used seal is particularly beneficial where compatibility with existing fittings and adherence to the vehicle manufacturer's parameters are important.

Installation and Service Application

The left rear door seal in the Audi A6 C8 is designed as a replaceable part, which facilitates service work in case of wear, tearing, or loss of elasticity of the existing component. In typical service scenarios, seal replacement is recommended when:

• increased wind noise is present with closed doors,
• signs of water leaks appear around the door edges,
• visible cracks, deformations, or material defects are present.

Due to its factory-fitted design for a specific model and vehicle side, installation is straightforward, without the need to adapt universal profiles. This solution is preferred by workshops specializing in the Audi brand and by users who prioritize maintaining a construction consistent with the manufacturer's documentation.

Other Audi Door Seals

If you also need other parts from the Audi door seals category, you can check the availability of similar products using the link: Audi door seals. This will allow you to select complete sealing kits for the entire body within a single brand and category.

Technical Support and Operation

During comprehensive body and interior service work, it is also worth paying attention to the condition of comfort systems, such as heating and air conditioning, which interact with the sealing system, influencing stable cabin conditions. Additional information on selecting used OEM components and maintenance procedures can be found in the material: Air Conditioning and Heating – Part Selection and Maintenance for Year-Round Comfort.

Summary

The Audi A6 C8 Left Rear Outer Door Seal is a practical choice for users who want to restore proper sealing and smooth door operation on the left rear side. Its original origin, dedicated placement on the vehicle, and direct installation capability make it a technically consistent solution with the Audi A6 C8 body construction, allowing for the maintenance of the vehicle's user comfort at an appropriate level.