Mercedes X156 Window Strip Trim Door Front Left N/S Moulding Seal A1567250465

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes X156 Window Strip Trim Door Front Left N/S Moulding Seal is a precisely fitted component from the Doors and door panels group, designed for installation in the front left body area. It is responsible for the tight guidance of the window and stable sealing of the door edge, which translates into acoustic comfort and protection of the vehicle interior against external factors.

Specifications and technical data

• SKU: A1567250465
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1567250465
• Substitutable numbers: A1567250465, A 156 725 04 65
• Location on the vehicle: Front, Left
• Category: Doors & Door Skins

Purpose and technical function

The front door window seal on the driver's side has been designed specifically for the X156 body type, taking into account the geometry of the door frame and window guidance. The component operates in the contact zone between the window and the door, limiting the ingress of water, dust, and air into the door interior and the cabin.

Thanks to its properly shaped profile, the trim stabilizes the movement of the window in the guide, reducing unwanted play and vibrations. Proper fitment of this part is important for:

• maintaining the tightness of the window circuit,
• reducing wind noise at higher speeds,
• protecting the window lifting mechanism from moisture,
• maintaining the correct operation of the lock and microswitches in the door.

Original Mercedes fitment

As a component intended for Mercedes vehicles, the seal trim maintains factory geometry and operating characteristics. This means proper adhesion to the door frame and compatibility with the factory window mechanism in the front – left side configuration. Using an original solution reduces the risk of problems with window closing, leaks, or accelerated wear of the lifting mechanism.

The component comes from the Doors and door panels group, which guarantees structural consistency with other components in this body area and facilitates the selection of parts during accident repairs or maintenance.

Performance characteristics and installation

The front left door window seal is designed for installation in factory mounting points, which simplifies the service process and allows for the preservation of the original body line. A correctly installed trim contributes to:

• smooth window guidance throughout its entire range of motion,
• reduction of the "whistling" air phenomenon at the window edge,
• better protection of the door upholstery against moisture,
• stable door closing without the need for additional adjustment.

The product is offered in used condition, which allows for an economical repair while maintaining the original structural specification characteristic of this body series.

Application in the door and door panel zone

Replacing the window sealing trim is particularly recommended after bodywork and paint repairs, side collisions, or when symptoms such as increased noise, water leaks, or difficult window closing occur. A properly selected seal supports long-term door operation, reducing the loads acting on the window lifting mechanism and limiting corrosion of internal structural elements.

If you are planning a comprehensive repair or upgrade of the door area in your Mercedes and need other elements from the same group, such as panels, reinforcements, or additional seals, check the available parts in the Mercedes Doors and door panels category.

Summary and operational tips

Mercedes X156 Window Strip Trim Door Front Left N/S Moulding Seal is a practical solution for users who want to restore the proper tightness and smooth operation of the window on the driver's side. Using an original component from the door group helps maintain acoustic comfort, protect the interior from moisture, and reduce wear on door mechanisms.

For drivers interested in a broader approach to vehicle maintenance in demanding temperature conditions, our guide on the cooling system may be useful – more information can be found in the article Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.