Frame Mercedes W205 Rear Window Left N/S Outside Guide Rail Sealing A2057355300

Visual condition of the part

The product shows signs of use visible in the photos.

Frame Mercedes W205 Rear Window Left N/S Outside Guide Rail Sealing is a component from the Window seals and trims group, designed for precise installation in the vehicle body. The product is an original Mercedes part, which ensures proper geometric fit and stable window guidance in the correct plane.

Specifications and technical data

• SKU: A2057355300-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2057355900
• Substitutable numbers: A2057355300, A 205 735 53 00
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Purpose and function of the component

The described window seal frame is structurally prepared for operation in the rear, left zone of the body, where it is responsible for the proper seating and guidance of the window relative to the bodywork. The rail design ensures stable support for the glass edge, limiting its unwanted movement while driving and during repeated opening and closing of the window.

The component belongs to the group responsible for:

• maintaining a seal between the window and the body,
• reducing wind noise and vibrations transmitted to the interior,
• protecting against water and dirt ingress into the guide area,
• stabilizing the operation of the window lifting mechanism.

Benefits of using the original seal frame

Using an original component dedicated to a specific body series translates into repeatable, predictable window behavior throughout its entire range of operation. The correct sealing profile and matched mounting points reduce the risk of leaks, rattles, or improper window closing.

Key advantages include:

• compatibility with factory body geometry – no need for mounting modifications,
• consistency with other seals and trims in the vehicle,
• maintaining the factory level of acoustic comfort,
• reducing the risk of accelerated corrosion in the window area thanks to proper moisture drainage.

Application in the body repair process

The window seal frame is particularly important during post-accident repairs, glass replacement, or when eliminating leaks in the rear part of the vehicle. Selecting the correct element for a specific model allows for maintaining the original rigidity of the window area and the proper adhesion of the glass to the peripheral seals.

In workshop practice, this component is used, among others, for:

• regenerating the window zone after mechanical damage,
• eliminating noises resulting from play in the guides,
• restoring the correct operation of the window lifting mechanism,
• sealing the body after glass replacement.

Operational and installation characteristics

Due to its factory origin, the seal frame is prepared for installation in existing body mounting points, which facilitates service work and shortens repair time. The appropriately shaped profile works with the glass and other window elements, ensuring even pressure along the entire length of the guide.

During installation, it is recommended to:

• check the condition of the contact surfaces on the body,
• verify the correct operation of the window lifting mechanism after installation,
• verify the seal after the first wash or exposure to heavy rain.

If you are planning a comprehensive repair or modernization of the window zone in your Mercedes and need other elements from the same group, such as frames, seals, or guide rails, check the available parts in the Mercedes window seals and trims category.

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