Mercedes W251 Rear Door Window Guide Weatherstrip Right O/S A2517350225

Mercedes W251 Rear Door Window Guide Weatherstrip Right O/S is an original body component from the Window seals and trims group, designed for the rear right door area in Mercedes vehicles. The precisely shaped guide ensures stable window operation and helps maintain proper sealing and smooth performance of the window regulator mechanism.

Specifications and technical data

• SKU: A2517350225
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2517350225
• Substitutable numbers: A2517350225, A 251 735 02 25, A2517350725, A 251 735 07 25
• Location on the vehicle: Rear, Right
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Purpose and function in the vehicle

The presented window guide is designed for installation in the rear right part of the body, within the passenger door area. It is responsible for the proper vertical guidance of the window, minimizing play, and reducing unwanted vibrations while driving. As a result, the window regulator mechanism operates more smoothly, and the window maintains a stable position relative to the door frame.

This component is important for both acoustic comfort and protecting the interior from moisture. A correctly selected and installed guide reduces air drafts, lowers noise at higher speeds, and supports the maintenance of proper sealing within the door seals.

Construction and performance characteristics

The window guide weatherstrip belongs to a group of body components subject to wear and tear, which over time may degrade due to the operation of the window mechanism, temperature changes, and weather conditions. Using an original Mercedes component allows for maintaining factory-fitment to the door frame and proper compatibility with other seals and trims around the window.

Key benefits of using this guide include:

• more stable window guidance in the door channels,
• reduction of rattling and window play when driving on uneven surfaces,
• support for the sealing system in the rear right part of the body,
• maintenance of the correct geometry of the window regulator mechanism.

Selection and compatibility

The offered guide weatherstrip is a component dedicated to the specific configuration of the rear right door in W251 family models. When selecting parts, it is worth paying attention to compliance with the manufacturer's markings and ensuring that the replaced element corresponds to the same body area where it is to be installed. Using the correct guide minimizes the risk of problems with window closing, jamming, or improper contact with the seals.

The product comes from the segment of original body components, which helps maintain the structural integrity of the door and facilitates installation without the need for modifications. This allows the replacement to be carried out in a predictable manner, maintaining factory mounting points and guide routing.

Condition of the element and practical application

The window guide weatherstrip is offered as a used part, which allows for an economical repair of the rear right door area while maintaining the original manufacturer's specifications. This type of component is particularly useful in situations where symptoms such as increased noise with the window slightly open, difficulties with smooth lifting, or noticeable play in the guidance occur.

Replacing the guide is also recommended as a preventive measure during major work within the door, for example, when refurbishing the window regulator mechanism or when repairing mechanical damage in this part of the body. This allows for restoring the proper cooperation of all elements responsible for window movement and window tightness.

Expanding work on seals and trims

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

For drivers interested in a broader perspective on the differences between standard and more advanced components, including the cost-effectiveness of using used parts, the article BMW M Performance: how do BMW M components differ from standard ones? may be helpful, as it discusses the practical aspects of selecting parts for premium vehicles.