Audi RS3 8V A3 8V Rear Window Seal Door Trim Strip Gasket Left N/S 8V4853763B

Audi RS3 8V A3 8V Rear Window Seal Door Trim Strip Gasket Left N/S is a precisely fitted body component designed for the rear left door area of the Audi A3 8V generation model. The original design ensures proper window guidance, sealing, and an aesthetic finish for the door edge, which translates into stable window mechanism operation and a cohesive look for the side of the vehicle. Thanks to the factory profile, the trim strip maintains compliance with the original manufacturer's specifications and helps avoid issues with improper closing or noise while driving.

Specifications and technical data

• SKU: 8V4853763B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8V4853763B
• Substitutable numbers: 8V4853763B, 8V4 853 763 B
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Function and application in the rear left door

The presented sealing strip works in the contact area between the window and the door frame, stabilizing its movement and limiting the ingress of water, dust, and air drafts into the interior. The properly profiled working edge supports smooth window guidance in the tracks, which reduces the risk of jamming and unwanted play. Proper fitment to the rear left side of the body allows for maintaining factory gaps and the glazing line, which is important for both acoustic comfort and the visual consistency of the entire bodywork.

Construction and fitment to the Audi body

The trim strip belongs to the Window seals and trim strips group, meaning it has been designed to work in variable weather conditions and during repetitive window opening and closing cycles. The seal profile is adapted to the geometry of the Audi A3 8V door, ensuring it maintains a stable position after installation without the need for additional modifications. The appropriate stiffness and flexibility of the material limit deformation while allowing for proper adhesion to the window and door frame.

Condition and benefits of using an original part

The item comes from disassembly and is offered as a used original Audi part, which in practice means maintaining factory geometry and compatibility with the door structure. Compared to aftermarket replacements, the original sealing strip ensures predictable fitment, reduces the risk of leaks, and minimizes the need for adjustments during installation. Replacing a worn or damaged seal with an original component allows for restoring proper window operation, reducing wind noise, and improving interior protection against moisture.

Why it is worth using a dedicated window seal

Using a dedicated trim strip in the rear left part of the body is particularly important in vehicles used daily, where windows are operated regularly. A properly selected seal:

• stabilizes the window in the tracks, reducing vibrations while driving,
• improves door sealing, which affects the acoustic comfort of the cabin,
• supports interior protection against water and dirt,
• maintains the aesthetic glazing line characteristic of the Audi A3 8V.

For users who want to consciously select body components and avoid compatibility issues, our guide may be helpful: how to professionally select used car parts and verify compliance with OEM numbers.

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 trim strips, guide seals, or additional window profiles, check the available parts in the Audi window seals and trim strips category.