Audi A3 8V Sportback Rear Window Seal Door Gasket Frame Left N/S 8V4839439C

Audi A3 8V Sportback Rear Window Seal Door Gasket Frame Left N/S is a precision body component from the Window seals and trims category, designed specifically for the rear left window of the Audi A3 8V Sportback model. It is responsible for stable window guidance and a tight seal, which contributes to acoustic comfort, protection against moisture, and the proper operation of the window regulator mechanism.

Specifications and technical data

• SKU: 8V4839439C
• Mark: Audi
• Condition: Used
• OEM Part Number: 8V4839439C
• Substitutable numbers: 8V4839439C, 8V4 839 439 C
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Function and application in the Audi A3 8V Sportback

The guide integrated with the rear left window seal is responsible for the correct positioning of the glass within the door frame and maintaining proper pressure against the body. This reduces window vibration while driving and better protects the vehicle interior from noise, water, and external contaminants.

The component is intended for installation in the rear section of the body on the driver's side, which is important when selecting parts for a specific installation location. A correctly selected guide with a seal supports the proper operation of the window regulator mechanism and reduces the risk of misalignment or excessive wear.

Benefits of using an original guide with a seal

Using a dedicated guide with a seal in the Audi A3 8V Sportback allows for maintaining factory-standard door component fitment and stable window guidance. The appropriate seal profile supports the maintenance of the window circuit's tightness, which translates into:

• better cabin acoustic insulation,
• reduction of water and moisture ingress into the door interior,
• reduced load on the window regulator mechanism,
• more even distribution of forces during window opening and closing.

Thanks to its fitment for the specific Sportback body style, the component works in harmony with the door line and window frame, which facilitates installation and helps maintain a consistent appearance of the vehicle's side.

Installation and operational characteristics

The rear left window guide with a seal is structurally prepared to work under conditions of variable temperatures, humidity, and mechanical loads typical for rear door operation. Proper installation in the designated location on the vehicle allows for stable seating of the glass in the guides and maintains appropriate pressure of the seal against the glass and frame.

During replacement, it is recommended to check the condition of the contact surfaces in the door and the window regulator mechanism to fully utilize the properties of the newly installed component. Careful installation reduces the risk of subsequent rattling, looseness, or leaks around the rear left window.

Why choose a component from the Audi Window seals and trims category

Components from the Window seals and trims group are responsible not only for tightness but also for proper window guidance and the aesthetic finishing of body edges. In the case of Audi, it is particularly important to maintain structural and material consistency, which affects user comfort and reduces unwanted noise while driving.

If you are planning a comprehensive repair or upgrade of the side glazing area in your Audi and need other elements from the same group, such as guides, perimeter seals, or trim strips, check the available parts in the Audi Window seals and trims category.

An informed choice of a used part

Choosing a used body component, such as a window guide with a seal, allows for optimizing repair costs while maintaining compatibility with the vehicle's design. This solution is particularly beneficial for post-collision repairs or gradual restoration of the side body section.

If you want to better understand the specifics of the second-hand parts market and dispel doubts regarding their use, it is worth reading the article: Used car parts: Myths and facts you need to know.