Mercedes ML W166 Window Guide Front Right O/S Door Seal Guide Rail A1667251800

The Mercedes ML W166 Window Seal Guide for Front Right Door is an original body part designed for precise guidance and sealing of the window in the front right door. Thanks to its factory fit to the door structure, it ensures stable operation of the window lifting mechanism and limits the ingress of water and noise into the interior. This is a practical solution for users who want to restore proper window operation in their Mercedes ML W166 while maintaining compliance with factory standards.

Specifications and technical data

• SKU: A1667251800
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1667251800
• Substitutable numbers: A1667251800, A 166 725 18 00
• Location on the vehicle: Front, Right
• Category: Window Seals, Gaskets & Trims

Vehicle Application and Placement

The presented window seal guide is a dedicated component for the front right door of the Mercedes ML W166 model. Its placement in the window frame area means it is responsible for both guiding the glass pane along its proper track and sealing the space between the window and the door structure. A correctly chosen component in this area directly impacts acoustic comfort, protection against moisture, and the proper functioning of the window regulator.

Function of the Window Seal Guide

The seal guide in the front door performs several key technical functions:

• stabilizes the window during raising and lowering, limiting its unwanted tilting,
• creates a barrier against water, dust, and contaminants entering the door interior,
• helps maintain proper acoustic sealing of the cabin,
• reduces the load on the window regulator mechanism, which can extend its lifespan.

By using an original window seal guide, factory operating conditions for the entire system can be restored, leading to stable window operation and a more comfortable vehicle experience.

Characteristics of an Original Mercedes Part

The window seal guide for the Mercedes ML W166 comes from the Window Seals and Trim group, meaning it has been specifically designed for operation in the window and door frame area. Original manufacturing ensures compatibility with the door's geometry, appropriate rigidity, and a profile that works correctly with the window and body structure. This type of component is particularly important in premium vehicles where a high level of mechanism refinement and reduced unwanted noise during driving are expected.

The item is offered in used condition, allowing for economical repair while maintaining the original manufacturer's specifications. For many users, this is a sensible compromise between cost and retaining factory fit and material quality.

Benefits of Using an Original Seal Guide

Using the correct window seal guide in the front right door offers a range of practical benefits:

• restores the proper window operating path and reduces play in the guides,
• minimizes the risk of window scratches resulting from improper guidance,
• improves door sealing against water and air drafts,
• ensures smoother operation of the regulator mechanism, which can reduce wear,
• maintains the structural integrity of the door according to the manufacturer's design.

For users who pay attention to the technical aspects of vehicle operation, replacing a worn guide with an original part is a simple way to enhance vehicle comfort without interfering with other components.

Selecting Parts from the Same Group and Additional Information

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

When choosing used body components, it is worth paying attention to their origin, compatibility with the specific model, and the condition of the material in the working areas. A correctly chosen window seal guide for the front right door helps avoid problems with leaks, improper window closing, or excessive noise while driving, while also being a cost-effective solution compared to purchasing a new part.