Mercedes X156 Window Frame Front Door Left N/S Cover Trim Seal Black A1567250125

Mercedes X156 Window Frame Front Door Left N/S Cover Trim Seal is a precisely fitted body component designed for installation in the front left door of Mercedes vehicles. It is responsible for guiding the window tightly, protecting the door edge, and ensuring the window is securely seated in the frame, which translates to acoustic comfort and proper operation of the lifting mechanism. Finished in a neutral black, it integrates seamlessly with the factory door design.

Specifications and technical data

• SKU: A1567250125
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1567250125
• Substitutable numbers: A1567250125, A 156 725 01 25
• Location on the vehicle: Front, Left
• Color: Black
• Category: Window Seals, Gaskets & Trims

Purpose and function of the component

The described window frame and cover trim seal is dedicated for installation in the front left door area of the Mercedes X156 body. Its tasks include:

• guiding the window in the correct position during raising and lowering,
• limiting the ingress of water, dust, and contaminants into the door interior,
• reducing cabin noise by sealing the window perimeter,
• protecting the door and window edges from excessive mechanical wear.

A component configured in this way helps maintain stable operation of the window lifting mechanism and improves the overall comfort of using the vehicle.

Construction, color, and fitment

The seal frame is designed as a component integrated with the window perimeter and door structure, which ensures proper adhesion to the bodywork. The black color is consistent with the typical factory finish, ensuring the element does not stand out visually against other door components.

Placement in the front left door area allows for precise fitting to the shape of the door frame, which is essential for both tightness and proper alignment with the window and other seals in the vehicle.

Performance characteristics and installation

As an element in the Window seals and trims category, the seal frame and window cover work in direct contact with the glass and the door edge. The correct positioning of this component affects:

• smoothness of window movement in the guides,
• reduction of rattles and vibrations while driving,
• maintenance of proper window pressure against the perimeter seal.

The used condition of the element allows for an economical replacement of a damaged or worn frame while maintaining the original geometry and compatibility with the Mercedes X156 door structure.

Body integration and aesthetics

The black surface of the frame blends well with most interior configurations and exterior door finishes without altering the vehicle's styling. Thanks to the retention of the factory shape and mounting points, the element creates a visually coherent outline of the window and door edge after proper installation, which is important for both aesthetics and system tightness.

Expanding the scope of service work

If you are planning a comprehensive repair or upgrade of the window and side seal area in your Mercedes and need other elements from the same group, such as guide frames, additional perimeter seals, or masking strips, check the available parts in the Mercedes window seals and trims category.

If you are also interested in the broader context of premium car operation and potential service costs, a practical guide regarding problematic power units in a popular model of the Bavarian brand may be helpful – you can find it in the article Faulty BMW E90 engines: check what can ruin your budget.