Audi A6 C8 Rear Door Window Guide Strip Seal Gasket Rubber Right O/S 4K5839432C

Visual condition of the part

The product shows signs of use visible in the photos.

Audi A6 C8 Rear Door Window Guide Strip Seal Gasket Rubber Right O/S is an original body component designed for the rear right door. It ensures the window is guided tightly, reduces wind noise, and protects the interior of the door from moisture, which translates into stable operation of the window lifting mechanism and acoustic comfort in the cabin. Thanks to its precise fit for the specific A6 C8 generation, installation is predictable and technically straightforward.

Specifications and technical data

• SKU: 4K5839432C
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K5839432C
• Substitutable numbers: 4K5839432C, 4K5 839 432 C
• Location on the vehicle: Rear, Right
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Purpose and function in the Audi A6 C8 body

The described window guide seal is a component operating in the rear right zone of the body, within the passenger door area. Its task is to provide stable vertical window guidance, reduce lateral play, and seal the space between the glass and the door frame. A properly selected guide rubber reduces window vibration, minimizes the risk of misalignment, and supports the smooth operation of the window regulator.

By using a properly shaped rubber profile, the seal also helps in dampening wind noise and limits the ingress of water and contaminants into the door interior, which is important for the durability of locks, linkages, and electrical wiring.

Construction, material, and fitment

The Audi A6 C8 Rear Door Window Guide Strip Seal Gasket Rubber Right O/S is made of flexible rubber material, designed to operate in varying temperature conditions. The profile is appropriately shaped for the door frame, which facilitates seating in the factory slots and ensures proper adhesion to the edge of the glass.

As an item from the Window seals and trims group, it has been constructed to work with the factory window lifting mechanism and other door seals. Proper fitment for the specific side of the vehicle (rear, right) minimizes the need for additional modifications and allows for maintaining the original gap geometry.

Condition, service application, and benefits of installation

The item comes from dismantling and has the status of a used original Audi part, which in practice means maintaining factory geometry and compatibility with the A6 C8 door structure. Replacing a worn or deformed window guide seal is recommended in situations where symptoms such as increased noise at higher speeds, leaks around the window, heavier operation of the lifting mechanism, or noticeable window play in the guide appear.

Choosing an original seal for the specific location on the vehicle (rear right door) allows you to:

• maintain the correct window line relative to the door frame,
• reduce the risk of premature wear of the window regulator,
• improve acoustic comfort in the interior,
• increase protection of the door interior against moisture.

Practical installation and maintenance tips

When installing the rear right window guide seal in an Audi A6 C8, it is worth paying attention to thoroughly cleaning the mounting channels in the door frame and checking the condition of other seals in this area. Correct seating of the rubber profile along the entire length of the guide is crucial for smooth window movement and avoiding point stresses.

After replacement, it is recommended to fully lower and raise the window several times to check the smoothness of movement and make any necessary adjustments to the seal's position. Good service practice is to periodically check the condition of the rubbers in the doors – especially in vehicles operated in harsh weather conditions – to maintain stable sealing and correct window guidance.

Expanding upgrades within Audi seals

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

If you are also considering other service work on the vehicle and want to optimize costs by selecting appropriate used components, a guide on the cost-effectiveness of purchasing second-hand parts – especially for more complex components such as gearboxes – may be helpful. You can find more practical tips in the article Used gearbox – when is it worth it and what you need to remember.