Audi A4 B9 Window Frame Cover Trim Seal Guide Rear Door Right O/S 8W5839432D

Audi A4 B9 Window Frame Cover Trim Seal Guide Rear Door Right O/S is a factory body component from the Window seals and trims group, designed for the rear right door area in the Audi A4 B9 generation model. It is responsible for stable window guidance, proper edge sealing, and an aesthetic finish of the frame, which translates into acoustic comfort and protection of the vehicle's interior.

Specifications and technical data

• SKU: 8W5839432D
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W5839432D
• Substitutable numbers: 8W5839432D, 8W5 839 432 D
• Location on the vehicle: Rear, Right
• Category: Window Seals, Gaskets & Trims

Purpose and function of the component

The door window frame integrated with the cover and seal for the rear right side is a key component responsible for guiding the window and limiting the ingress of water, dust, and noise into the cabin. This element works in direct contact with the window and the door panel, which is why its correct fit is important for:

• maintaining proper pressure of the window against the perimeter seals,
• reducing wind noise at higher speeds,
• protecting the interior from moisture and dirt,
• stability of the window lifting and lowering mechanism.

Thanks to a design consistent with Audi factory standards, the frame works with the original window regulator and other door components, ensuring the integrity of the entire system.

Compatibility with Audi A4 B9

The described element was designed specifically for the Audi A4 B9 generation model, taking into account the geometry of the rear right door pair. This means that the profile shape, mounting points, and seal path are matched to the factory bodywork, without the need for modifications or forced fitting.

Precise fitment translates into:

• easier installation in place of a worn or damaged frame,
• maintaining the body lines and proper window adhesion,
• reducing the risk of leaks after replacement.

Design characteristics

The door window frame with cover and seal creates a complete circuit guiding the window in the rear right part of the body. The applied sealing profile has been designed to ensure proper pressure against the window edge and to work with other door seals. This makes it possible to maintain a consistent insulation barrier around the entire door perimeter.

This solution allows for:

• stable window operation in the guides,
• reduction of play and vibrations when driving on uneven surfaces,
• more even distribution of loads on the window lifting mechanism.

Condition and service application

The item comes from dismantling and is offered as a used original Audi part, which is an attractive alternative to new components while maintaining factory geometry and compatibility. This type of door window frame is particularly useful for post-accident repairs, replacing corroded or mechanically damaged frame elements, as well as eliminating problems with leaks and noise in the rear right part of the body.

Benefits of using an original window frame

Using an original door window frame with a seal in the Audi A4 B9 allows you to maintain the structural integrity of the body and the comfort parameters intended by the manufacturer. The most important advantages include:

• Factory fit – compatibility with the door line and window without the need for modifications.
• Stable window operation – proper guidance throughout the entire range of motion.
• Better acoustic insulation – reduction of noise in the rear part of the cabin.
• Interior protection – more effective water drainage and protection against moisture.

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

For drivers who, in parallel with bodywork, are considering servicing or replacing powertrain components, a practical guide on transmissions may be useful – you can find it in the article Transmission: manual, automatic, or DSG – common faults and a guide to buying a used gearbox, where design differences, typical signs of wear, and tips for choosing used components are discussed.