Audi A6 C8 Rear Door Window Guide Seal Gasket Rubber Left N/S 4K5839431B

The Audi A6 C8 Rear Left Door Window Seal is an original part from the Window Seals and Trim category, designed for installation on the rear left side. It ensures a tight window seal, reduces wind noise, and supports the proper operation of the lifting mechanism, contributing to a quieter, more comfortable ride.

Specifications and technical data

• SKU: 4K5839431B
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K5839431B
• Substitutable numbers: 4K5839431B, 4K5 839 431 B
• Location on the vehicle: Rear, Left
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Purpose and Function in the Audi A6 C8

This window seal is specifically designed for the rear left side of the Audi A6 C8 body. It is responsible for:

• stable guidance of the window in the door frame during raising and lowering,
• preventing water and dirt from entering the door interior,
• reducing wind noise and window vibrations at higher speeds.

Its precise fit for the specific body model ensures proper alignment with the door frame and other trim elements.

Construction and Material Properties

The seal is made of flexible rubber material that works well with the window and door structure. The applied profile ensures:

• even pressure on the window along the entire length of the guide,
• proper moisture drainage from the space between the window and the frame,
• dimensional stability under typical operating temperature changes.

The original origin of the part helps maintain the factory acoustic and visual standard, without the need for adjustments or modifications.

Vehicle Placement and Installation

The part is intended for installation in the rear left part of the body, within the door frame. A correctly installed seal:

• ensures smooth window movement in the guide,
• minimizes the risk of scratching the window edges,
• helps maintain the seal of the window-to-door contact area.

Due to its specific model fit, installation is straightforward, utilizing the factory mounting points.

Condition and Benefits of Choosing a Used OEM Part

The seal is in used condition, allowing for a reasonable cost while maintaining the original manufacturer's specifications. Choosing such an OEM part offers:

• preservation of the original sealing geometry and profile,
• better compatibility with the window mechanism compared to many aftermarket replacements,
• the possibility of economical repair while maintaining the vehicle manufacturer's standard.

For users looking to reduce cabin noise and improve window operation comfort, replacing a worn seal with an original used part is a practical service solution.

Completing Your Audi Sealing System

If you are looking for other Audi Window Seals and Trim, check out the Audi window seals and trim available in our store to comprehensively refresh your car's sealing system and improve cabin acoustics.

When planning a broader range of service work using original, used parts, it's worth consulting the guide on our blog: Rising Repair Costs and the Boom in Used Parts – How to Save on Car Servicing?, where you'll find practical tips for cost-effective selection of OEM components.