Audi A4 B8 Sportback Window Trim Frame Cover Rear Door Left N/S 8P4839629B

Description

Audi A4 B8 Sportback Window Trim Frame Cover Rear Door Left N/S is a precision body component designed for the rear left door area in Audi models. Its robust construction ensures stable window guidance and proper sealing of the door opening, which translates into acoustic comfort and protection of the vehicle’s interior. This is a particularly beneficial solution for professional post-accident repairs or replacing a worn-out window frame in your Audi.

Specifications and technical data

• SKU: 8P4839629B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8P4839629B
• Substitutable numbers: 8P4839629B, 8P4 839 629 B
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Purpose and function of the component

The rear left window frame in the Audi A4 B8 Sportback is responsible for stable window guidance within the tracks and proper positioning of the seals within the door area. A correctly selected frame:

• maintains the geometry of the door opening in the rear part of the body,
• ensures even pressure of the window against the seals,
• limits the ingress of noise, moisture, and contaminants into the interior,
• supports the proper operation of the window lifting mechanism.

As a result, replacing a damaged or corroded frame with a functional part allows for the restoration of factory window operation parameters and comfort in the rear part of the cabin.

Compatibility and fitment for Audi

The presented frame has been designed specifically for the rear left side of the body in the Audi A4 B8 Sportback, which guarantees proper fitment with the door structure and other body components. Using a dedicated component:

• facilitates installation without the need for structural modifications,
• ensures compatibility with the factory seal and trim layout,
• minimizes the risk of leaks and improper window operation.

This is particularly important in the case of body and paint repairs, where precise reproduction of the original body geometry is essential.

Characteristics of the used component

The offered frame belongs to the Window seals and trims group, meaning it works with the window sealing and trim system in the door. As a used part, it comes from dismantling and represents a cost-effective solution while maintaining the original construction intended for Audi. In practice, this means:

• preservation of the factory window frame geometry,
• the ability to use existing mounting points,
• easier fitting of window seals and trims.

Before installation, standard verification of the mounting surface condition and potential preparation for further service work is recommended, in accordance with workshop procedures.

Benefits of using an original frame

Using a dedicated rear left window frame in the Audi A4 B8 Sportback provides a number of practical benefits:

• Restoration of proper window operation – correct guidance in the tracks and stable support for the seals.
• Better acoustic and rain sealing in the rear part of the passenger cabin.
• Visual and structural consistency with other Audi body components.
• Possibility of professional repair after a collision or replacement of a worn-out part.

For workshops and private users, this means more predictable installation and a reduction in the risk of problems with window closing or the appearance of unwanted noise while driving.

Related components and additional information

If you are planning a comprehensive repair or upgrade of the window area in your Audi and need other components from the same group, such as perimeter seals, finishing trims, or window guides, check the available parts in the Audi window seals and trims category.

When choosing between new parts, replacements, or used parts, it is worth analyzing the cost-to-quality ratio and the method of selection by OEM number – you can find a practical comparison in the article Original, replacement, or used – which car parts are the most cost-effective?.