Mercedes W639 Side Rail Cover Rear Left N/S Sliding Door Panel Flint Grey - 368

Mercedes W639 Side Rail Cover Rear Left N/S Sliding Door Panel Flint Grey is a body component from the Doors and door panels category, designed for the rear left side of the vehicle. The carefully selected Flint Grey Metallic - 368 color allows for an aesthetic match to the original paintwork, which helps maintain a consistent side body line.

Specifications and technical data

• SKU: A6396913008-FLG1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6396913008
• Substitutable numbers: A6396913008, A 639 691 30 08, BG
• Location on the vehicle: Rear, Left
• Color: Flint Grey Metallic - 368
• Category: Doors & Door Skins

Purpose and function of the component

The described cover rail is dedicated to installation in the rear left part of the body, in the door rail area. Its task is to cover the sensitive operating area of the mechanism, as well as to visually organize the edges of the door panels. Thanks to its precise profile, the component works with the door structure, reducing the risk of contaminants entering the rail zone.

As a part from the Doors and door panels category, the rail supports the correct geometry of the side structure, which is important both for the comfort of using the doors and for maintaining the correct body line after bodywork repairs.

Color and visual matching

The Flint Grey Metallic - 368 color is a characteristic metallic shade of gray used in Mercedes models, which allows for a visually consistent integration of the rail into the vehicle's factory paint. The metallic structure of the paint promotes uniform light reflection, which helps minimize visual differences between the component and adjacent body panels.

Its placement on the vehicle in the rear left section means that proper color matching is not only aesthetic but also practical – a well-matched rail reduces the need for additional painting work in the area of the doors and adjacent panels.

Installation and operational characteristics

The rail has been designed for installation in a specific location on the body, which translates into proper fitment with the door edges and adjacent bodywork elements. The orientation towards the rear left side of the vehicle facilitates the identification of the correct position during service work.

As a used part, the rail is a cost-effective solution for accident repairs, bodywork corrections, or replacing damaged rail covers, allowing for the preservation of the original door zone construction at a reasonable cost.

Application in body repairs

Replacing the rail cover is particularly important in situations where mechanical damage has occurred in the rear door area or its guidance system. A correctly selected component helps to:

• restore the aesthetics of the side body line,
• protect the rail area from dirt,
• maintain proper door guidance in the rear left zone.

Thanks to the use of an original rail intended for Mercedes, it is possible to maintain the factory character of the structure, which is important both for daily use and for the potential resale of the vehicle.

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

For drivers considering a wider use of used parts in their repair and modernization projects, additional information on the advantages of such a solution and practical tips on selecting components are provided in the article Used car parts for Mini Cooper – a way for style and savings, which discusses the approach to economical yet conscious vehicle operation.