Audi A7 4G Door Wing Mirror Base Electric Left N/S Mythical Black - Y9T

Visual condition of the part

The product shows signs of use visible in the photos.

The Audi A7 4G Door Wing Mirror Base Electric Left N/S Mythical Black is an original body component designed for Audi vehicles. It ensures stable mounting of the electrically operated driver-side door mirror, maintaining factory geometry and the aesthetic finish of the Mythical Black Metallic – Y9T paintwork.

Specifications and technical data

• SKU: RHD-4G8858531AN-MYB2
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G8858531AN
• Substitutable numbers: 4G8858531AN, 4G8 858 531 AN
• Location on the vehicle: Left
• Part type: Standard Mirror Assembly
• Color: Mythical Black Metallic - Y9T
• Category: Mirror Assemblies

Purpose and function of the component

The left-side door mirror base is responsible for the precise seating of the mirror housing relative to the door and the correct routing of the electrical wiring. It is a key structural component within the wing mirror assembly, affecting:

• mirror stability at higher speeds,
• proper operation of the electrical mechanism,
• accurate fitment to the door panel without unwanted play.

By maintaining factory mounting points, the base allows for installation in accordance with the manufacturer's specifications, without the need for structural modifications.

Color and visual fitment

The component is finished in Mythical Black Metallic – Y9T, which allows for a seamless match with the body of an Audi A7 4G painted in the same color. The metallic black finish ensures:

• an aesthetic transition between the mirror and the door,
• the preservation of the vehicle's uniform stylistic line,
• a reduction in the need for additional painting when the vehicle color is correctly matched.

For users who care about their car's appearance, this means easier maintenance of a consistent, factory-original look after replacing the part.

Technical characteristics and installation

The base is designed for installation on the left side of the vehicle, in the location of the factory door mirror. The design, intended for use with electric mirror adjustment, enables:

• routing of the electrical harness inside the component,
• retention of the original mirror position relative to the driver,
• correct adjustment of the viewing angle in accordance with the model's homologation.

As part of the Wing mirrors group, it serves as the load-bearing base for further mirror assembly components, such as the housing, mirror glass, or adjustment mechanism.

Original origin and condition

The product comes from the Audi range as an OEM part, which means it maintains factory dimensional tolerances and compatibility with the Audi A7 4G door structure. The used nature of the part allows for an economical replacement while maintaining the original manufacturer's specifications, which is particularly important for accident repairs or replacing a damaged mirror base.

If you want to better understand when it is worth choosing an original second-hand part instead of a replacement, the article 5 reasons why a used OEM part is a better choice than a replacement, which describes practical selection criteria using examples of popular models, will be helpful.

Expansion and other elements from this group

If you are planning a comprehensive repair or upgrade of the side visibility zone in your Audi and need other elements from the same group, such as housings, inserts, or complete mirror assemblies, check out the available parts in the Audi wing mirrors category.