Mercedes W251 Window Strip Trim Bar Rear Left N/S Moulding Chrome A2516907980

The Mercedes W251 Black Rear Left Door Window Trim is an original body part from the Window Seals and Trim group, designed for installation on the rear left door. This precisely fitted trim in black helps maintain window seal integrity and the aesthetic appearance of the vehicle's side body.

Specifications and technical data

• SKU: A2516907980
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2516907980
• Substitutable numbers: A2516907980, A 251 690 79 80
• Location on the vehicle: Rear, Left
• Color: Black
• Category: Window Seals, Gaskets & Trims

Purpose and Function of the Part

The rear left door window trim for the Mercedes W251 is responsible for the correct guidance of the window edge and stable sealing of the glass-to-door frame contact. A properly selected profile limits the ingress of water and dirt into the door, contributing to the longevity of the window regulator mechanism and body panels.

The black surface of the trim ensures a cohesive look with the factory body finishes, thus preserving the original side profile of the vehicle after installation. Its placement in the rear left area requires a precisely fitted part to avoid stress and leaks.

Construction and Body Fitment

The trim has been specifically designed for the geometry of the rear driver's side door on the Mercedes W251, ensuring proper adhesion to the window and frame edges. The structural profile is adapted to operate in varying weather conditions, and the black finish effectively conceals operational dirt.

This part belongs to the Window Seals and Trim group, meaning its primary function is to combine protective (sealing) and aesthetic (window edge finishing) roles. A correctly installed trim reduces wind noise at higher speeds and improves interior acoustic comfort.

Performance Characteristics and Installation

The product is intended for installation in the rear left area, so during replacement, attention should be paid to its correct positioning relative to the window guide and door edge. Proper fitment:

• reduces the risk of vibrations and rattles while driving,
• limits the possibility of water entering the door interior,
• ensures even window contact along the entire length of the trim.

The functional nature of the part allows for an economical replacement of a worn or damaged trim while maintaining the original manufacturer's specifications. This is a practical solution for post-accident repairs or for renovating the vehicle's side body area.

Benefits of Using an Original Trim

Using an original window trim for the Mercedes W251 helps maintain the factory door fitment parameters and a uniform appearance of the vehicle's side. A correctly selected part from this group:

• helps maintain the seal between the window and the frame,
• supports corrosion protection around the door edges,
• preserves the aesthetic window line and harmonious body appearance.

This is particularly important in Mercedes-class vehicles, where attention to finishing details contributes to the overall perception of the vehicle's quality and its resale value.

If you are planning a comprehensive repair or upgrade of the side glazing area in your Mercedes and need other parts from the same group, such as window trims, window frame seals, or door edge finishes, check the available parts in the Mercedes Window Seals and Trim category.

For owners of diesel models who are planning to refresh their engine unit concurrently with bodywork, an article describing the characteristics of the popular 3.0 V6 CDI engine and typical service tasks may be helpful – more information can be found in the material Second Life for the Mercedes OM642 Engine – How Injectors and Turbo Restore Power to the 3.0 V6 CDI.