Audi RS6 C7 Door Window Seal Guide Rubber Gasket Rear Left N/S 4G9839439C

The Audi RS6 C7 Rear Left Door Window Regulator Seal is a precise body component responsible for the proper guidance and sealing of the window. The original Audi design ensures a correct fit to the door frame, stable operation of the window lifting mechanism, and reduction of noise and vibrations during driving. This is a practical solution for users who want to restore the proper function of the rear driver's side window.

Specifications and technical data

• SKU: 4G9839439C
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G9839439C
• Substitutable numbers: 4G9839439C, 4G9 839 439 C
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Purpose and Function in the Audi RS6 C7

The presented regulator seal is intended for installation in the rear left door of the Audi RS6 C7 generation. The component is responsible for vertically guiding the window and sealing it at the junction with the door frame, which is important for both acoustic comfort and protection of the interior from moisture. Thanks to its proper profile, the rubber works with the factory window lifting mechanism, stabilizing its movement and reducing the risk of jamming.

Construction and Technical Properties

The window regulator seal is made of flexible rubber material with selected hardness, which allows for effective vibration damping and compensation for minor door frame deformations. The seal's profile has been designed for the specific RS6 C7 body model, ensuring proper adhesion lines to the window and bodywork. The original cross-sectional geometry ensures compatibility with factory mountings and maintains sealing throughout the entire range of window operation.

Benefits of Using an Original Regulator Seal

Using a dedicated window regulator seal in the rear left door translates into several significant operational benefits:

• stable window guidance in the regulator during opening and closing,
• reduction of air drafts and noise at higher speeds,
• better protection of the door interior from water and dirt ingress,
• maintaining the factory fit of the side body area elements.

Thanks to this, the acoustic and functional comfort in the rear part of the cabin remains close to the factory level, and the window lifting mechanism operates under predictable conditions.

Component Condition and Service Application

The offered window regulator seal is a used part, sourced from disassembly, which allows for economical repair while maintaining the original Audi specification. This type of component is particularly useful for resolving issues such as difficult window closing, excessive noise around the rear left door, or signs of leaks after precipitation. Replacing the seal with an original part from the same model series helps maintain the structural integrity of the entire side body area.

Related Audi Body Components

If you are planning a comprehensive repair or upgrade of the side window area in your Audi and need other components from the same group, such as additional frame seals, trim strips, or window regulators, check the available parts in the Audi Window Seals and Trim category.

For vehicle owners who are considering improving cabin ergonomics alongside bodywork, a guide on replacing seats with branded used parts may be helpful – find more information in the article Interior Metamorphosis: How Branded Used Seats Improve Comfort and Car Value.