Audi A4 B8 Exterior B Pillar Column Trim Cover Panel Rear Right O/S 8K0839902Q

Visual condition of the part 

The product shows signs of use visible in the photos. 

Audi A4 B8 Exterior B Pillar Column Trim Cover Panel Rear Right O/S is an original body component from the Window seals and trims group, designed for installation on the rear right B-pillar. It provides an aesthetic finish to the side body area while ensuring stable support for seals and window trims, which translates into acoustic comfort and proper window operation.

Specifications and technical data

• SKU: 8K0839902Q
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0839902Q
• Substitutable numbers: 8K0839902Q, 8K0 839 902 Q
• Location on the vehicle: Rear, Right
• Category: Window Seals, Gaskets & Trims

Purpose and function of the component

The B-pillar panel on the rear right side of the body is responsible for covering the structural support and guiding the seals and trims in the rear door area. In practice, this means:

• better sealing of the space between the door and the body,
• reducing the ingress of noise and contaminants into the interior,
• a visually cohesive connection between the side window lines and the rest of the bodywork.

Thanks to its perfect fit for the specific Audi model, the correct assembly gaps are maintained, which facilitates the work of body shops and painters and shortens repair time.

Construction and fitment for Audi A4 B8

The B-pillar cover has been designed as a component structurally compliant with the factory body standard of the Audi A4 B8 generation. This means that:

• the panel geometry corresponds to the original B-pillar line,
• mounting points are prepared for standard clips and fasteners,
• the edge shape works in conjunction with factory seals and window trims.

This solution allows for installation without modifications, while maintaining the original rigidity and appearance of the side body section. For workshops, this means predictable labor time, and for the user – a visually consistent result after repair.

Vehicle placement and service application

The component is intended for installation on the rear right B-pillar, which is important when selecting parts after a collision or when replacing worn-out covers. Precise determination of the vehicle side minimizes the risk of ordering errors and facilitates the planning of body and paint work.

In practice, the panel is suitable for:

• post-accident repairs of the side body section,
• renovation of the rear door area on the right side,
• removing the effects of corrosion or mechanical damage in the B-pillar area.

Product characteristics and benefits of use

As a component from the Window seals and trims group, the B-pillar panel works with window seals and decorative trims, providing them with stable support. Using an original design allows for maintaining:

• proper adhesion of seals along the rear door edge,
• even pressure distribution on window trims,
• an aesthetic finish of the side window line.

This solution is particularly beneficial for repairs where maintaining the factory appearance of the vehicle and the proper operation of window and lock mechanisms are important.

Condition and assembly aspects

The item is offered in used condition, which allows for an economical repair while maintaining original geometry and compatibility with the Audi A4 B8 body. Before installation, standard workshop verification and fitting to the specific vehicle are recommended, taking into account the manufacturer's technology.

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

Selection by numbers and online purchase support

When selecting body components for an Audi, it is particularly helpful to compare part numbers and manufacturer markings, which reduces the risk of ordering the wrong panel. To better understand how to safely verify component compatibility by numbers, it is worth using the practical tips included in the guide Shopping for parts online without risk – 5 proven ways to verify component compatibility using OEM numbers and paint codes.