Mercedes W205 Front Door Window Weatherstrip Strip Left N/S Trim A2057250365

Visual condition of the part 

The product shows signs of use visible in the photos. 

Mercedes W205 Front Door Window Weatherstrip Strip Left N/S Trim is an original body component designed for precise sealing of the front left door in W205 series models. Thanks to its fitment to the factory door geometry, it ensures stable window operation, reduces wind noise, and helps protect the interior from moisture. It is a practical solution for users looking to restore proper window function and the aesthetics of the side bodywork in their Mercedes.

Specifications and technical data

• SKU: A2057250365
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2057250365
• Substitutable numbers: A2057250365, A 205 725 03 65
• Location on the vehicle: Front, Left
• Color: Black
• Category: Window Seals, Gaskets & Trims

Purpose and function of the component

The front left door window weatherstrip has been designed specifically for installation in the front left door of Mercedes W205 class vehicles. Its task is to stabilize the window edge during raising and lowering and to reduce play that can cause rattling, vibrations, or leaks. The component operates in the critical area where the glass meets the door panel, which is why its proper condition has a direct impact on acoustic comfort and the protection of the interior against water and contaminants.

The black color of the trim allows for a consistent match with factory door frame finishes, ensuring that a uniform visual line of the side bodywork is maintained after installation. This is particularly important for post-accident repairs or when replacing worn-out components in vehicles used on a daily basis.

Construction, color scheme, and fitment

The trim belongs to the Window seals and trims group, which are components responsible for guiding and sealing side windows. The construction is profiled to the specific shape of the driver's side front door frame, which facilitates correct seating in the factory mounting points. As a result, proper window operating tolerances and even pressure along the entire length of the edge are maintained after installation.

The black shade of the surface blends well with most body configurations, both in versions with standard and tinted windows. The neutral color scheme allows the trim to be used in various equipment variants without the risk of it visually standing out from the rest of the window frame elements.

Placement on the vehicle and benefits of installation

The component is intended for installation in the front left door area, along the window edge. A properly selected weatherstrip in this location:

• limits the ingress of water and dirt into the door interior,
• reduces cabin noise at higher speeds,
• supports smooth window guidance in the tracks,
• improves the overall aesthetics of the window line on the driver's side.

As an original Mercedes brand component, the trim is structurally matched to the W205 body geometry, which facilitates installation and allows for maintaining the factory performance parameters of the window lifting mechanism.

Condition characteristics and service application

The offered front left door window weatherstrip comes from the secondary market, making it a cost-effective solution while maintaining the manufacturer's original specifications. This type of component is often chosen for post-collision repairs, replacing corroded or perished seals, and eliminating leaks that appear after years of operation.

Due to its factory origin, the component works well both in spot repairs (replacing a single trim) and in broader renovation work covering the entire window line on one side of the vehicle. Proper fitment to the W205 model reduces the risk of installation problems and the need for additional modifications.

Complementary Mercedes window seals and trims

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 additional window seals, trim strips, or window guides, check out the available parts in the Mercedes window seals and trims category.

Additional technical support

For major body or drivetrain repairs, it is worth using proven sources of technical knowledge. If you are also considering replacing the engine in your car, a practical guide describing the key stages of verifying secondary market components may be helpful – you can find it in the article How to buy a used car engine and not get scammed – a step-by-step guide.