Mercedes W639 Side Panel Rear Left N/S Interior Trim Cover Panel A6396921022

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W639 Side Panel Rear Left N/S Interior Trim Cover Panel is an original interior trim component designed for installation in the rear left section of the vehicle body. This used cover from the Linings, decorative strips and trims category allows you to restore the factory look of the side panel and ensures a consistent, aesthetic finish for the passenger or cargo area. It is a practical solution for users who want to maintain the original character of their Mercedes interior.

Specifications and technical data

• SKU: a6396921022
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6396921022
• Substitutable numbers: A6396921022, A 639 692 10 22
• Location on the vehicle: Rear, Left
• Category: Trim

Purpose and function of the component

The rear left side panel cover for the Mercedes W639 is responsible for aesthetically covering the structural body elements and routing the wiring located in this part of the vehicle. A correctly selected part ensures:

• a visually consistent finish of the interior side wall,
• protection of structural elements against accidental mechanical damage,
• stable mounting of the upholstery and adjacent equipment components.

Thanks to its precise fit for the specific body model, the cover maintains the correct geometry and enables the proper installation of other interior components.

Construction and vehicle fitment

The presented cover has been designed specifically for use in the rear left part of the vehicle, which guarantees shape compatibility with the body line and factory mounting points. The component belongs to the Linings, decorative strips and trims group, allowing it to integrate with other trim panels in the cabin or cargo area.

Its original Mercedes origin helps maintain a uniform surface texture, the correct color (within a given trim level), and the proper material rigidity. This is particularly important when replacing a single panel, where a seamless transition between new and existing trim is desired.

Vehicle placement and installation aspects

The cover is intended for installation in the rear zone on the left side, which eliminates the risk of errors when selecting parts based on the vehicle side. In practice, this means:

• compatibility with factory mounting holes and clips in the rear body section,
• proper fitment to adjacent side panels and the headliner,
• maintenance of the correct interior trim line on the driver or passenger side (depending on the vehicle configuration).

During installation, it is recommended to use the original mounting points and check the condition of clips and brackets to ensure the cover remains stable and does not generate unwanted noise while driving.

Component condition and service application

The offered part is in used condition, making it a reasonable choice for accident repairs, replacing damaged panels, or restoring a vehicle to a factory-like state at optimal costs. The used side panel cover is suitable for both body shops and services specializing in the interior fit-out of commercial vehicles.

To ensure full compatibility, it is worth verifying the part's suitability for your vehicle based on the OEM number and interchangeable numbers available in the technical specification – this helps avoid fitment issues and speeds up the installation process.

Expanding the interior and selecting related components

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

For larger renovation or modernization projects, it is also worth utilizing expert knowledge and guide materials regarding work with original parts. In the context of premium vehicles, an article describing typical faults and repairs using manufacturer components may be helpful – for example, a guide on the BMW N47 timing chain and the use of original BMW parts, which shows how to consciously approach the selection of used components in high-class cars.