Audi A4 B8 Door Seal Aperture Gasket Rubber Rear Right O/S Inner 8K0839480C

Audi A4 B8 Door Seal Aperture Gasket Rubber Rear Right O/S Inner is a precisely fitted component from the Door seals group, designed for the rear right window in the Audi bodywork. It is responsible for guiding the window tightly, reducing noise, and protecting the interior from moisture, which directly affects acoustic comfort and the durability of the upholstery.

Specifications and technical data

• SKU: 8K0839480C
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0839480C
• Substitutable numbers: 8K0839480C, 8K0 839 480 C
• Location on the vehicle: Rear, Right
• Category: Door Seals

Purpose and function in the vehicle

The described seal is dedicated to installation in the rear right area of the Audi A4 B8 body, within the window guide. Its tasks include:

• stable window guidance in the track during raising and lowering,
• limiting the ingress of water and contaminants into the door interior,
• reducing wind noise at higher speeds,
• maintaining proper window pressure against the door frame.

Thanks to the preservation of factory geometry, the element ensures proper adhesion to the window and frame, which translates into stable operation of the window lifting mechanism and correct door closing.

Advantages of using an original Audi seal

The inner rear right door window seal, originating from the Audi line, has been designed for the specific construction of the A4 B8 body. In practice, this means:

• factory fit to the shape of the door frame and window,
• preservation of the original contact line, without the need for modifications,
• compatibility with the stock window lifting mechanism,
• material consistency with other seals in the vehicle.

Using an original solution allows for maintaining a uniform cabin soundproofing standard and reduces the risk of leaks that often appear with universal parts.

Installation and operational characteristics

The element is designed for installation in factory mounting points in the rear right door. The seal's construction allows for:

• installation along the edge of the window frame without interfering with the door structure,
• cooperation with existing guides and trim strips,
• maintaining proper window pressure along the entire circumference.

With correct installation, the seal supports even distribution of forces on the window surface, which promotes smooth operation of the regulator and reduces the load on the mechanism.

Condition of the element and service application

The offered seal is a used item, which makes it an attractive service solution for users looking for parts of factory origin at a more favorable price than new replacements. This type of component is particularly useful for:

• repairs after collisions in the area of the rear right door,
• eliminating leaks and excessive noise in the rear part of the cabin,
• restoring correct window operation after replacing the lifting mechanism.

Using an original seal allows for maintaining the structural integrity of the door and maintaining the factory level of protection against moisture.

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 inner window seals, perimeter seals, or sealing strips, check the available parts in the Audi door seals category.

Additional information and selection support

When selecting a seal for a specific body version, it is worth paying attention to the installation side and the purpose for the rear part of the vehicle to maintain full compatibility with the door construction. In case of doubts regarding the use of used OEM elements in service repairs and the impact of their availability on the vehicle's downtime in the workshop, the following article may be helpful: Availability of car parts off the shelf vs. repair time – how do used OEM parts shorten the stay in the workshop?.