Audi A8 D4 Door Window Seal Guide Rubber Gasket Rear Right O/S 4H0839718C

The Audi A8 D4 Rear Right Door Window Seal is an original body part from the Window Seals and Trim category, designed for installation in the rear right pair of doors. The precisely molded rubber profile ensures a tight seal against the window and door frame, reducing noise, water ingress, and air drafts. This is a practical solution for Audi owners looking to restore proper acoustic insulation and protect the vehicle's interior.

Specifications and technical data

• SKU: 4H0839718C
• Mark: Audi
• Condition: Used
• OEM Part Number: 4H0839718C
• Substitutable numbers: 4H0839718C, 4H0 839 718 C
• Location on the vehicle: Rear, Right
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Purpose and Function of the Seal

The seal is tailored for the rear right door window in the Audi A8 D4 generation. Its purpose is to:

• limit the ingress of water and moisture into the door and cabin,
• reduce wind noise at higher speeds,
• stabilize the window in its track during raising and lowering,
• protect the window edges from minor mechanical damage.

Thanks to its proper profile and flexibility, the rubber works in conjunction with the door structure, maintaining a seal even with frequent opening and closing.

Construction and Fit for Audi A8 D4

This part has been specifically designed for the geometry of the rear right door in the Audi A8 D4, ensuring a factory-perfect fit with the door frame and window. The cross-sectional shape and appropriately selected rubber compound hardness allow for correct seating in the original mounting points.

The seal works with the window regulator mechanism and other door trim elements, without causing additional resistance or jamming. Maintaining the original geometry is particularly important in premium vehicles where acoustic comfort and body sealing are paramount.

Benefits of Using an Original Rubber Seal

Using an original seal in the Audi A8 D4 allows for the restoration of factory window operation parameters and interior insulation. The key benefits include:

• better protection of the interior against water and dust thanks to the precisely fitted rubber profile,
• reduced cabin noise, especially in the rear right part of the body,
• stable window operation in its track, minimizing the risk of rattles and play,
• an aesthetically pleasing finish to the window and door frame edges, consistent with the rest of the body.

For drivers who prioritize maintaining driving comfort and proper acoustic insulation, replacing a worn-out seal with an original part is a simple and effective solution.

Condition and Service Application

The offered seal is a used part, making it an attractive service alternative for drivers seeking original parts at a reasonable price. It can be used for collision repairs as well as for routine replacement when the existing seal has lost its flexibility or sealing integrity.

Due to its specific placement on the vehicle, this part is intended exclusively for the rear right door window, simplifying the selection of the correct part during bodywork, painting, or body renovation.

Related Categories and Technical Materials

If you are planning a comprehensive window seal restoration for your Audi and are also interested in other sealing elements, trim, and rubber profiles for this model, check out the available parts in the Audi Window Seals and Trim category.

For more extensive service work on the powertrain, where you might also consider used components, the guide on diagnosing and selecting clutch and dual-mass flywheel parts may be helpful – you can find it in the article Clutch and Dual-Mass Flywheel – Diagnosis and Part Selection for the Powertrain.