Backrest Mount Mercedes W164 W251 Rear Seat Left N/S Hook Clip A2519100276

Backrest Mount Mercedes W164 W251 Rear Seat Left N/S Hook Clip is an original Mercedes component, designed for stable mounting of the seat backrest and ensuring the proper operation of the locking mechanism. The part belongs to the Trims, moldings and decorations group, but performs an essential mounting function in the rear left area of the vehicle interior, supporting safe and repeatable positioning of the backrest.

Specifications and technical data

• SKU: A2519100276
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2519100276
• Substitutable numbers: A2519100276, A 251 910 02 76
• Location on the vehicle: Rear, Left
• Category: Trim

Purpose and function of the backrest hook mount

The presented backrest hook mount has been designed specifically for the seat construction in Mercedes models from the CLA family as well as the W164 and W251 series. The component operates in the rear left part of the vehicle, where it is responsible for maintaining the correct position of the backrest and working with the locking mechanism. Thanks to this, the backrest remains stable while driving, and folding or unfolding the seat is performed in a controlled, predictable manner.

The original geometry of the mount ensures proper guidance of the hook, which reduces the risk of play, rattling, or improper closing of the backrest. This is particularly important in vehicles used on long journeys, where acoustic comfort and the stability of interior elements are of great importance for the perceived quality of the ride.

Construction, fitment and installation

The backrest hook mount is a structural element associated with upholstery and side trim, which is why it has been classified into the Trims, moldings and decorations group. Its shape and mounting points are adapted to the factory mounting holes in the bodywork and the standard seat mechanism, which facilitates replacement in workshop conditions.

With the correct selection of the part for a specific body and seat version, the installation proceeds in an orderly manner: after removing the covers and unscrewing the old mount, the new element can be seated in the existing points, maintaining the factory hook guidance. Such a solution limits the need for modifications and allows maintaining the consistency of the seat structure with other interior elements.

Benefits of using an original Mercedes component

Using an original backrest hook mount in the rear left part of the vehicle translates into several practical benefits:

• maintaining the factory position and operation of the seat backrest,
• reduction of unwanted play and noises in the rear part of the cabin,
• consistent fit with other interior trim elements,
• easier diagnostics and service in the future thanks to compliance with manufacturer documentation.

For users who expect predictable operation of the backrest folding mechanism and aesthetic fit of the elements, choosing an original Mercedes component is a technically safe and long-term cost-effective solution.

Condition of the element and application in service practice

The offered mount comes from the used parts group, which allows for optimizing repair costs while maintaining compliance with the factory seat construction. This type of element is particularly useful in situations where mechanical damage to the hook, deformation of the mount, or excessive wear leading to problems with locking the backrest has occurred.

In service practice, replacing the backrest hook mount is often performed together with an inspection of the entire folding mechanism, which allows restoring the comfort of operating the rear bench seat and improving the overall functionality of the passenger and luggage space.

If you are planning a comprehensive repair or modernization of the rear seat area in your Mercedes and need other elements from the same group, such as covers, trims, or additional mounts, check the available parts in the Mercedes Trims, moldings and decorations category.

For drivers interested in a broader view of vehicle operation and repair economics, including the use of used components, the article describing a comparison of popular Volkswagen units may be helpful – Volkswagen 1.9 TDI vs 1.4 TSI – evolution of VW engines and repair costs, which shows how to consciously plan service using parts from the secondary market.