Audi A4 B8 Front Door Left N/S Brilliant Black Metallic - LY9B

Listing details and visual condition of the part

Possible scratches and paint chips – condition as shown in the product photos.

The offer applies to the bare door – without handle, window, lock, trims, or any other accessories.

There is an option to purchase a complete door for an additional fee of 80 GBP.

Audi A4 B8 Front Door Left N/S Brilliant Black Metallic - LY9B is an original body component from the Doors and door panels group, designed for installation on the driver's side. The paint in the Brilliant Black Metallic - LY9B shade ensures color consistency of the bodywork and facilitates visual matching during post-accident repairs or restoration.

Specifications and technical data

• SKU: 8K0831051J-BBL2
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0831051J
• Substitutable numbers: 8K0831051J, 8K0 831 051 J
• Location on the vehicle: Front, Left
• Color: Brilliant Black Metallic - Y9B
• Category: Doors & Door Skins

Purpose and fitment for Audi A4 B8

The presented door has been designed as a factory Audi body component, which ensures proper geometry, correct embossing, and compatibility with factory mounting points. The vehicle placement, defined as front left, guarantees that the component fits the driver's side of the Audi A4 B8 without the need for structural modifications.

The original door construction helps maintain proper lateral body stiffness, correct closing, and proper interaction with seals, locks, and hinges. As a result, after replacement, you can achieve factory-level alignment with the fender, rocker panel, and A-pillar.

Color Brilliant Black Metallic - LY9B

The factory color Brilliant Black Metallic - LY9B is a popular, dark shade with a subtle metallic effect, characteristic of many Audi A4 B8 configurations. Using original paint over the entire door surface makes it easier to match the existing bodywork, especially when the car has been serviced according to the manufacturer's specifications.

In many cases, this allows for limiting the scope of painting to local blending or correction, which can shorten repair time and reduce costs. At the same time, visual consistency with other body panels is maintained, which is important both for aesthetics and for the potential future resale of the vehicle.

Characteristics of the used component

The door comes from dismantling, which means these are used parts that retain their original structure and factory Audi design solutions. Such components are often chosen for post-accident repairs when the priority is to maintain compliance with factory body specifications and optimize costs compared to new sheet metal panels.

In the case of aftermarket doors, it is important that the original geometry is preserved, which facilitates the correct setting of gaps between body elements and the proper operation of window mechanisms, locks, and seals after transferring equipment from the damaged component.

Use in body repairs

Replacing the complete front left door is a typical solution for side damage, edge corrosion, or deformations after a collision. Using an original panel from the Doors and door panels group allows you to restore the correct body line, ensure proper seal adhesion, and maintain the functionality of the driver's entry zone.

A component of this type will work well both in repairs performed in professional body and paint shops and in workshops specializing in the restoration of Audi vehicles, where dimensional repeatability and compliance with factory standards are essential.

If you are planning a comprehensive repair or upgrade of the side body area in your Audi and need other elements from the same group, such as door skins, reinforcements, or door frames, check out the available parts in the Audi Doors and door panels category.

Interior comfort and aesthetics – what else to consider

During major work on the body and vehicle equipment, many users decide to refresh the passenger cabin in parallel so that the entire modernization is consistent. Replacing door upholstery, seats, or decorative elements can significantly improve perceived driving comfort and the visual reception of the interior.

If you are considering improving ergonomics and convenience in your car, it is worth checking out the guide on choosing aftermarket seats – you will find practical tips in the article Interior metamorphosis: how branded seats from dismantling improve comfort and car value, which will help you plan further stages of vehicle modernization.