Mercedes W639 Side Rail Cover Rear Right O/S Sliding Door Panel Flint Grey - 368

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W639 Side Rail Cover Rear Right O/S Sliding Door Panel Flint Grey is a precisely fitted body component from the Doors and door panels category, designed for the rear right area of the sliding side door. Finished in an elegant Flint Grey Metallic – 368, it allows for an aesthetically pleasing and technically correct restoration of the vehicle's factory side profile.

Specifications and technical data

• SKU: A6396913108-FLG
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6396913108
• Substitutable numbers: A6396913108, A 639 691 31 08
• Location on the vehicle: Rear, Right
• Color: Flint Grey Metallic - 368
• Category: Doors & Door Skins

Purpose and function of the component

The side door rail cover is responsible for protecting the sliding door guide in the rear right section of the bodywork and maintaining the consistent geometry of the side body line. A correctly selected component in this area:

• stabilizes the operation of the door sliding mechanism,
• limits the exposure of the rail to dirt and external factors,
• ensures visual continuity of the vehicle's side surface.

Thanks to its dedicated application for Mercedes W639 series models, the cover retains the correct mounting points and a shape tailored to the factory door construction.

Color and visual fit

The finish in Flint Grey Metallic - 368 allows for a seamless match with the body paint in this color specification. The metallic coating promotes even light distribution across the surface of the cover, which minimizes the visibility of minor shade differences when properly installed and prepared.

Its placement on the vehicle in the rear right section of the sliding side door makes this component both aesthetically and functionally significant – especially in vehicles used intensively, where the side area is often exposed to mechanical damage.

Installation characteristics

The cover has been designed as a component dedicated to a specific model from the Mercedes range, which facilitates installation at existing mounting points without the need to interfere with the door structure. With proper surface preparation, the installation proceeds in an orderly manner, maintaining factory gaps and body lines.

As an element from the Doors and door panels category, the cover works in conjunction with other sliding side door components, such as skins, seals, or guides, creating a cohesive protective and shielding system in the rear part of the vehicle.

Condition and practical application

The offered item is used, making it a cost-effective solution for vehicle maintenance where the priority is to maintain functionality and the correct appearance of the bodywork at a reasonable cost. This type of component is suitable for both post-accident repairs and for replacing worn or damaged covers in fleet-operated vehicles.

To ensure proper durability, installation in a workshop environment is recommended, with a check of the fitment against adjacent door and body elements, which allows for maintaining the correct geometry of the vehicle's side zone.

Expanding repair scope and knowledge

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

If you are simultaneously working on improving the comfort and aesthetics of the cabin, practical tips on selecting interior equipment from the secondary market may be useful – you will find them in the article Premium interior for half the price: second-hand seats, steering wheels, and multimedia, which discusses issues of compatibility, selection, and installation of interior components.