Audi A4 B8 Avant Seat Belt Guide Trim Rear Left N/S 8K0857791A

Visual condition of the part

The product shows signs of use visible in the photos.

Audi A4 B8 Avant Seat Belt Guide Trim Rear Left N/S is a component from the Linings, decorative strips and trims group, designed for the rear left part of the vehicle body. Engineered as a factory solution for Audi models, it ensures a consistent finish for the trunk interior and proper seat belt guidance in the rear area of the vehicle. This used OEM component is a sensible choice for repairs and completing the equipment in daily-driven cars.

Specifications and technical data

• SKU: 8K0857791A
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0857791A
• Substitutable numbers: 8K0857791A, 8K0 857 791 A
• Location on the vehicle: Rear, Left
• Part type: Trim Strip
• Category: Trim

Purpose and vehicle placement

The rear left seat belt guide trim operates in the rear body area, on the driver's side. It is responsible for stable seat belt guidance and aesthetically covering the structural elements in this zone. Thanks to its dedicated shape, it fits the geometry of the Audi A4 B8 Avant interior, which reduces the risk of looseness, squeaking, or unwanted vibrations while driving.

Technical and functional characteristics

The element belongs to the finishing group, where precise fitment with other panels and proper seat belt guidance are essential. The trim construction has been developed for:

• stable maintenance of the seat belt in its intended path in the rear part of the vehicle,
• protecting the seat belt from rubbing against sharp structural edges,
• achieving a consistent, orderly side surface in the trunk,
• easy removal and reinstallation during service work.

Such a solution helps maintain the functionality of the safety system and improves the overall quality of the rear cabin area.

Benefits of using an original seat belt guide trim

Using an original element from the Linings, decorative strips and trims group allows you to maintain the factory interior finish standard of your Audi. The main advantages include:

• maintaining the design-compliant geometry of seat belt guidance in the rear left part of the vehicle,
• consistent appearance of the side trunk lining, without unsightly gaps or mismatches,
• reducing the risk of improper seat belt operation resulting from the use of random replacements,
• easier identification and matching in the workshop thanks to its factory origin.

A used component of this type is particularly useful for post-accident repairs, replacing missing elements after disassembly, or restoring the interior to a condition close to factory-new.

Application in service practice

The rear left seat belt guide trim will prove useful both in professional workshops specializing in the Audi brand and for users independently completing missing interior elements. Thanks to its dedicated placement in the rear left part of the vehicle, installation is intuitive, and once installed, the element works in harmony with the existing trunk lining and seat belt system.

Expanding Audi decorative trim

If you are planning a comprehensive repair or upgrade of the interior finish zone in your Audi and need other elements from the same group, such as side linings, decorative strips, or additional decorative panels, check out the available parts in the Audi linings, decorative strips and trims category.

Used parts and repairing older models

For cars that have been in use for many years, the availability of new finishing elements can be limited, which is why using used OEM components is often the most rational solution. It is worth learning about the broader context of using such subassemblies – you can find practical tips and examples in the article No parts at the dealership? How to deal with repairing older models using dismantled parts, which discusses the advantages of using parts from disassembly in everyday repairs.