Mercedes X156 Window Strip Trim Door Front Left N/S Moulding Seal A1567250382

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 category, designed for installation in the front left door of Mercedes vehicles. It is responsible for guiding the window tightly, reducing noise, and protecting the interior of the door from moisture and contaminants, which translates into stable operation of the window lifting mechanism and acoustic comfort in the cabin.

Specifications and technical data

• SKU: A1567250382
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1567250382
• Substitutable numbers: A1567250382, A 156 725 03 82
• Location on the vehicle: Front, Left
• Category: Doors & Door Skins

Purpose and technical function

The front door window seal strip on the driver's side is a component that guides and seals the window in the door. Its tasks include:

• stabilizing the window in the guide during raising and lowering,
• limiting the ingress of water and dirt into the door interior,
• reducing wind noise at higher speeds,
• protecting the window edge against excessive wear.

Thanks to its proper profile and fit to the Mercedes X156 door structure, the strip supports the correct operation of the window lifting mechanism and maintains proper body sealing.

Compatibility and body fitment

The element has been designed specifically for installation in the front left door area of Mercedes vehicles from the X156 family, which ensures proper fitment with the door frame and window. The placement on the vehicle in the front – left side area allows for clear identification of the mounting position and eliminates the risk of error when selecting parts.

The appropriate shape of the strip facilitates installation in factory mounting points, and maintaining the original geometry translates into even pressure against the window and door frame, which is crucial for maintaining tightness and the correct operation of the entire door assembly.

Performance characteristics and advantages of use

As an element from the Doors and door panels category, the window seal strip directly affects the comfort of daily vehicle operation. A correctly selected and installed part helps to:

• minimize unwanted sounds coming from the door area,
• reduce the risk of window fogging resulting from moisture ingress,
• increase the durability of the window lifting mechanism thanks to stable guidance,
• maintain the aesthetics of the window edge and door frame.

A used original part is a reasonable choice for users looking for a technically matched solution while maintaining a favorable cost-to-quality ratio, especially in the case of maintenance repairs within the door area.

Mounting zone and service application

The strip is intended for installation in the front left door, in the immediate vicinity of the window, where it works with other seals and the door frame structure. Replacement of this element is recommended in situations where the following occur:

• wind noise with the door closed and the window raised,
• signs of leaks or water ingress around the window,
• difficult operation of the window lifting mechanism,
• visible damage or deformation of the old strip.

Selecting the correct front door window seal strip on the driver's side allows for restoring the correct performance parameters of the door zone and limiting further wear of cooperating elements.

If you are planning a comprehensive repair or upgrade of the door zone 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.

For drivers interested in the wider use of second-hand components in the context of repairs and modifications of premium class cars, it is worth reading an article describing a practical approach to tuning and service using used components: Audi on second-hand parts – tuning and repairs without losing quality.