Mercedes W251 Seat Belt Upper Rear Right O/S Seatbelt Black A2518608085

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W251 Seat Belt Upper Rear Right O/S Seatbelt Black is an original component from the Seat belts and parts group, designed for installation on the rear right side of the vehicle. The black color ensures consistency with the factory interior finish, and the design tailored to the specific axle and side of the car allows for precise, trouble-free installation. This is a solution for users who expect to maintain factory protection parameters and aesthetics in their Mercedes.

Specifications and technical data

• SKU: A2518608085-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2518608085
• Substitutable numbers: A2518608085, A 251 860 80 85
• Location on the vehicle: Rear, Right
• Color: Black
• Category: Seat Belts & Parts

Purpose and body fitment

The presented seat belt is designed to operate in the rear part of the cabin, on the right side. This means that its geometry, webbing length, and mounting points are adapted to the factory anchoring points in the Mercedes W251 class body. Such fitment reduces the risk of installation stress, webbing twisting, or improper belt routing relative to the seat and pillar.

The black color of the webbing and hardware allows for a uniform interior look, which is particularly important when replacing a single element in the cabin. As a result, the belt does not visually differ from other components, and the whole maintains a consistent, factory character.

Construction and function of the seat belt

The belt belongs to the group of elements responsible for keeping the passenger in the seat during sudden braking or a collision. The integrated retractor mechanism is constructed to allow free webbing extension during normal driving and quick locking during sudden acceleration or changes in body position. The appropriately selected width and structure of the webbing promote even load distribution on the passenger's body.

Key advantages of this solution include:

• dedicated placement in the rear, right part of the vehicle,
• color consistency with typical Mercedes interior finishes,
• maintenance of factory belt routing geometry relative to the seat and mounting points.

Benefits of using an original Mercedes component

Choosing a seat belt from Mercedes allows you to maintain compliance with the manufacturer's factory design standards. The original construction is prepared to work with existing mounting points, which facilitates installation and limits the need for additional modifications. This is especially important in the case of elements responsible for passive safety, where precise fitment and predictable behavior in emergency situations are paramount.

A used component from this group can be a reasonable compromise between costs and maintaining a high level of functionality. In many cases, it allows for restoring the full efficiency of the passenger restraint system while maintaining the original character of the vehicle's interior.

Application in service practice

The seat belt mounted on the rear right side is often replaced after collisions, activation of tensioning systems, or mechanical damage to the webbing. A properly selected element allows for restoring the full functionality of the system without interfering with the body structure. Installation should be carried out in accordance with the manufacturer's service procedures, maintaining appropriate tightening torques and checking the belt routing.

If you are planning a comprehensive repair or upgrade of the rear seat passenger safety zone in your Mercedes and need other elements from the same group, such as retractors, buckles, or mounts, check the available parts in the Mercedes seat belts and parts category.

Additional information and selection support

The selection of the appropriate seat belt should be based on compatibility with the specific body version and interior configuration. In case of doubts regarding the choice between new and used elements, it may be helpful to compare the durability and cost-effectiveness of different solutions – this is discussed in more detail in the article Car parts – new or used? We compare costs, quality, and durability.

For users interested in a wider range of vehicle modifications, including the use of dismantled subassemblies in tuning projects, additional inspiration is provided by the blog post Emotions and design – visual and mechanical tuning of a Seat using dismantled subassemblies, which shows how to consciously use used components while maintaining appropriate safety standards.