Mercedes W251 Rear Door Window Weatherstrip Trim Cover Left N/S A2516904780

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W251 Rear Door Window Weatherstrip Trim Cover Left N/S is an original body component designed to protect the window and door edges from water, dirt, and noise. This component from the Window seals and trims group helps maintain proper sealing and the aesthetics of the side body, which translates into acoustic and visual comfort inside the vehicle. Thanks to the factory fit for the rear left side of the body, installation is precise and predictable.

Specifications and technical data

• SKU: A2516904780
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2516904780
• Substitutable numbers: A2516904780, A 251 690 47 80
• Location on the vehicle: Rear, Left
• Part type: Window Trim
• Category: Window Seals, Gaskets & Trims

Purpose and function of the component

The described weatherstrip trim is dedicated to the rear left body area in Mercedes W251 class models. Its task is to guide and seal the door window, as well as protect the edges of the sheet metal and glass from external factors. A properly selected seal limits water ingress into the door interior, reduces the risk of corrosion, and minimizes wind noise while driving.

Construction and body fitment

The trim has been designed as an OEM component, which means its geometry, profile, and mounting method comply with the manufacturer's factory requirements. This ensures proper window guidance in the channels, and the window edge remains stable during opening and closing. Precise fitment to the rear left door allows for avoiding the stresses and leaks that often appear with non-original parts.

The component belongs to the Window seals and trims group, meaning it works with other peripheral door seals to create a cohesive system of protection against water and noise. Proper placement of the trim on the window edge also affects the aesthetics of the vehicle's side line – the lack of protrusion or warping of the material improves the visual perception of the entire bodywork.

Condition, installation, and service application

The offered component is in used condition, making it an attractive service solution for post-accident repairs or replacing worn-out seals. Using an original trim allows for maintaining factory window operation parameters and compatibility with existing door mounts. In practice, this translates into shorter installation time and less need for adjusting the component during body and paint work.

The trim is intended for installation in the rear left part of the vehicle, so when selecting, it is worth paying attention to the body side and the W251 body type. Correct side assignment eliminates the problem of shape and mounting point mismatch, which is crucial for maintaining tightness and the correct operation of the window lifting mechanism.

Benefits of using an original weatherstrip trim

• Better protection of the door interior against water and contaminants thanks to the matched seal profile.
• Noise reduction in the cabin by limiting wind noise in the rear window area.
• Cohesive appearance of the side body line thanks to the preservation of the factory shape and finish.
• Easier installation thanks to compatibility with original mounting points in the door.
• Possibility of economical repair of the door and window area while maintaining manufacturer standards.

Expanding repairs within seals and trims

If you are planning a comprehensive repair or upgrade of the door and side window area in your Mercedes and need other elements from the same group, such as additional edge seals, guide rails, or window covers, check the available parts in the Mercedes Window seals and trims category.

For users interested in a broader context of selecting used OEM components, turbochargers, and their integration with the intake system, the guide article Go-Kart Feeling XXL: used N18 turbocharger versus B48 – what to choose for a Mini Cooper S? may be helpful, as it shows a practical approach to selecting and installing components from the secondary market.