Mercedes V251 Window Seal Rear Left N/S Quarter Glass Gasket A2516701939

Mercedes V251 Window Seal Rear Left N/S Quarter Glass Gasket is an original body component from the Door seals group, designed for installation in the rear left section of the vehicle. The precisely matched profile ensures stable seating of the quarter glass, limits water ingress and noise, and helps maintain the factory rigidity of the bodywork. This solution is particularly beneficial for professional accident repairs and bodywork maintenance in Mercedes vehicles.

Specifications and technical data

• SKU: A2516701939
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2516701939
• Substitutable numbers: A2516701939, A 251 670 19 39
• Location on the vehicle: Rear, Left
• Category: Door Seals

Purpose and function of the seal

The described seal operates in the area of the rear left quarter glass, where it is responsible for a tight connection between the glass and the body frame. A properly selected component:

• limits air drafts at higher speeds,
• minimizes the risk of water entering the interior,
• supports cabin acoustics by reducing external noise,
• stabilizes the position of the glass relative to the bodywork. Thanks to this, replacing a worn or damaged seal with an original component allows for the restoration of vehicle comfort and the correct operation of the window mechanism.

Construction and fitment for the Mercedes V251 body

The seal has been designed specifically for the geometry of the V251 series body, taking into account the characteristic shape of the rear side body section. Properly profiled edges work with the door frame or side panel, which facilitates installation and ensures proper adhesion along the entire length. The factory origin of the element means maintaining consistency with the body line, which is important for both sealing and aesthetics – no tension, rubber rippling, or unnatural gaps around the window.

Condition of the element and service application

The seal is offered as a used part, which in service practice often represents a favorable compromise between repair costs and maintaining original build quality. In the case of rubber elements from disassembly, it is important that they come from vehicles factory-equipped with identical design solutions, which promotes correct fitment. This solution is particularly useful for:

• accident repairs of the rear body section,
• eliminating leaks in the quarter glass area,
• restoring the vehicle to factory condition after replacing a door or side panel.

Benefits of using an original seal

Using an original rear left quarter glass seal in a Mercedes V251 allows for maintaining the structural integrity of the body. The most important advantages include:

• Compatibility with the factory glass mounting system – no need for modifications or profile adjustments.
• Repeatable, predictable material behavior during operation – in accordance with the vehicle manufacturer's specifications.
• The possibility of professional repair to a standard close to factory, which is important for both private users and body shops. 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 door frame seals, side window seals, or edge seals, check the available parts in the Mercedes door seals category.

Technical support and knowledge about used parts

When selecting parts from disassembly, many users also consider other components, such as alternators or starters. In the context of an informed choice between remanufacturing and an original from disassembly, it is worth reading a specialist analysis – you will find practical arguments and examples in the article Starting system failure – why a used original often outperforms remanufacturing, which shows how to approach the topic of used part quality in a technical and cost-effective way.