Mercedes W205 Window Guide Rail Seal Door Rear Right O/S A2057356000

Mercedes W205 Window Guide Rail Seal Door Rear Right O/S is a precisely fitted body component designed for the rear right window in W205 series models. It is responsible for guiding the window securely within the door, reducing noise, and protecting the interior from water and debris, ensuring the stable operation of the window regulator mechanism. Thanks to its design, which complies with manufacturer standards, this door seal helps restore the factory performance parameters of the side window.

Specifications and technical data

• SKU: A2057356000
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2057356000
• Substitutable numbers: A2057356000, A 205 735 60 00
• Location on the vehicle: Rear, Right
• Category: Door Seals

Purpose and function in the bodywork

The described guide rail seal operates in the rear right door window area, where it performs several key operational tasks:

• stabilizes the window in the guide rail during opening and closing,
• limits water ingress into the door interior,
• reduces wind noise at higher speeds,
• minimizes vibrations and unwanted window operation sounds.

Thanks to its proper profile and fitment to the door structure, this component helps maintain acoustic comfort and the correct operation of the entire window regulator mechanism in the Mercedes W205.

Benefits of using an original window guide rail seal

Using a dedicated seal in the rear right part of the bodywork allows for maintaining compliance with the factory door geometry. The appropriately selected cross-section and material flexibility promote even pressure of the window against the frame, which translates into:

• more stable window guidance throughout the entire range of motion,
• better protection against moisture in the door interior area,
• maintenance of uniform gaps between the window and the seal,
• reduced risk of accelerated corrosion of components inside the door.

A properly selected rear right door window guide rail seal also helps reduce the load on the window regulator mechanism, which can positively affect its durability in the long term.

Installation characteristics and fitment

The component is designed for installation in the rear right body area, which facilitates the identification of the correct installation location. The seal's construction is prepared for factory mounts in the Mercedes door, making it possible to maintain:

• correct alignment relative to the window frame,
• consistency with other seals within the door area,
• aesthetic finish of the window edge from the exterior.

Such fitment promotes efficient service installation and helps reduce the need for additional adjustments after replacing the component.

Component condition and service application

The window guide rail seal is offered as a used part, making it an attractive solution for bodywork service, especially in the case of local collision repairs or the replacement of individual door components. Replacing a worn or damaged seal with an original component of this type allows for restoring proper window guidance and reducing unwanted sounds resulting from leaks.

Service expansion within the rear door area

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other components from the same group, such as additional perimeter seals, edge trims, or window frame seals, check the available parts in the Mercedes door seals category.

For users interested in the operation of all-wheel-drive models and the impact of body sealing on ride comfort and acoustics, the AWD systems comparison may also be useful – more information can be found in the article xDrive, 4Matic, quattro or 4Motion – AWD systems comparison.