Audi S3 8Y Rear Door Window Seal Gasket Rubber Frame Right O/S 8Y4839432A

Audi S3 8Y Rear Door Window Seal Gasket Rubber Frame Right O/S is an original body component from the Window seals and trims group, designed for installation on the right side of the rear part of the vehicle. The precisely molded rubber frame ensures a tight window fit, door stabilization, and reduces noise and moisture penetration into the cabin.

Specifications and technical data

• SKU: 8Y4839432A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8Y4839432A
• Substitutable numbers: 8Y4839432A, 8Y4 839 432 A
• Location on the vehicle: Rear, Right
• Category: Window Seals, Gaskets & Trims

Purpose and function of the seal

The presented seal is dedicated to the rear right body zone of the Audi S3 8Y generation. Its task is to provide a tight guide for the door window and isolate the interior from external factors. The properly selected geometry of the rubber profile supports:

• reduction of air drafts at higher speeds,
• reduction of wind noise in the cabin,
• protection against water and dirt ingress around the door frame,
• stable window operation during opening and closing.

Thanks to the factory fit for the specific body model, the seal works with the door structure without the need for modifications, which helps maintain the original rigidity and tightness of the bodywork.

Rubber frame construction and material properties

The rubber frame has been designed as a peripheral element, covering the edge of the window and the adjacent door surfaces. The flexible material used ensures:

• appropriate elasticity in the contact zones with the window and bodywork,
• dimensional stability within the typical operating temperature range,
• resistance to standard automotive chemicals (e.g., car wash detergents),
• shape retention in bends and corners of the frame.

A configuration designed in this way allows for even pressure distribution along the entire circumference of the window, which limits local stress and promotes long-term tightness of the door system.

Vehicle placement and installation aspects

The element is intended for installation in the rear right part of the body, within the passenger door area. The appropriate profile shaping and factory guide points facilitate the correct seating of the seal in the door frame. In installation practice, it is important to:

• thoroughly clean the contact surfaces in the door frame,
• check the correct alignment of corners and straight sections,
• verify window operation after installation (smooth movement, no rubbing),
• verify the seal's contact with the bodywork after closing the door.

This approach allows for restoring the proper tightness of the door zone and reducing the risk of unwanted noises while driving.

Characteristics of the used element

The seal comes from the secondary market, which means it is a used part that retains functionality consistent with its intended purpose. In practice, this allows for an economical replacement of the element while maintaining the manufacturer's original specifications. Choosing such a solution is beneficial both in terms of cost and from the point of view of reducing the consumption of new raw materials.

For many Audi users, it is important that using an original seal from the secondary market helps maintain the structural integrity of the door and preserve the factory character of the window mechanism's operation.

Support with selection and eco-tuning development

Proper selection of the seal for a specific body version is crucial for tightness and acoustic comfort. In case of doubt, it is worth verifying the compatibility of the element with the manufacturer's markings and the placement on the vehicle. More and more users are consciously choosing parts from the secondary market, combining attention to technical parameters with reducing their environmental impact – you can find more on this topic in the article Eco-tuning in practice: how to increase performance while reducing your carbon footprint with recycled parts.

If you are planning a comprehensive repair or modernization of the door glazing zone in your Audi and need other elements from the same group, such as window frame seals, guide rails, or additional rubber profiles, check the available parts in the category Audi window seals and trims.