Seat Lock Mercedes C238 Rear Folding Backrest Left Right Handle A2389203501

Seat Lock Mercedes C238 Rear Folding Backrest Left Right Handle is an original component from the Locks and latches group, designed to secure the rear seat backrests in the coupé body style. The precise construction ensures reliable locking of the backrests on both sides of the vehicle, which translates into stability, passenger safety, and proper operation of the folding mechanism.

Specifications and technical data

• SKU: A2389203501
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2389203501
• Substitutable numbers: A2389203501, A 238 920 35 01
• Location on the vehicle: Rear, Right, Left
• Category: Exterior Locks & Lock Hardware

Purpose and function of the backrest lock

The presented lock is a component responsible for the mechanical latching of the folding rear seat backrests in the Mercedes C-Class C238 model. The component operates in the rear part of the body, supporting both the right and left sides, which allows for consistent operation of the entire folding and locking system.

A properly functioning lock eliminates backrest play, reduces unwanted vibrations, and supports the correct closing of the latches after folding and returning the backrest to the operating position. This is important for both acoustic comfort and safety during sudden braking.

Construction and fitment for the C238 body

The element was designed by Mercedes with the specific geometry of the C238 body in mind, ensuring proper mechanism guidance and compatibility with factory backrest catches. Its placement in the rear of the vehicle and support for both sides (right and left) allow for use in the complete seat assembly without the need for structural modifications.

The original origin from the Locks and latches group means maintaining factory dimensional tolerances, which facilitates installation and minimizes the risk of problems with closing the backrests after replacing a damaged component.

Benefits of using an original lock

Using this lock in a Mercedes C238 allows for restoring the proper operation of the seat folding mechanism in situations where the existing element has suffered mechanical wear or damage. Replacing it with an original component from the Locks and latches group ensures:

• consistent operation of the mechanism on both sides of the rear seat,
• stable retention of the backrests in the operating position,
• reduction of knocking and play resulting from incomplete latching,
• preservation of the factory standard of safety and comfort.

The used nature of the part allows for an economical repair while maintaining the original design and fitment for the specific body model.

Installation area and service aspects

The lock operates in the rear interior zone, in the area of the seat backrest mounts, covering both the right and left sides. When planning a replacement, it is worth paying attention to the condition of the cooperating latching elements and guides so that the entire folding and locking system works evenly.

Due to the specific placement in the vehicle, it is recommended to entrust the installation to a service center with experience in interior assembly for Mercedes models, which will reduce the risk of damaging the upholstery and trim elements.

If you are planning a comprehensive repair or upgrade of the rear seat backrest mounting zone in your Mercedes and need other elements from the same group, such as latching mechanisms, catches, or guides, check the available parts in the Mercedes Locks and latches category.

For a comparison of manufacturers' approaches to the durability of mechanical elements and the principles of selecting original components, you can read an article describing a typical failure in another popular engine – details can be found in the material BMW N47 timing chain – typical failure and repair using original BMW parts.