Seat Belt Buckle Mercedes W212 CLS C218 Rear Middle Centre Right O/S A2128600669

Mercedes W212 / CLS C218 Rear Seat Belt Buckle is an original safety system component, designed for the middle and right rear seats. This is a precisely fitted part from the seat belts and parts category, ensuring proper cooperation with the factory seat belts in your Mercedes.

Specifications and technical data

• SKU: A2128600669
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2128600669
• Substitutable numbers: A2128600669, A 212 860 06 69
• Location on the vehicle: Rear, Right
• Category: Seat Belts & Parts

Intended Use and Fitment for Mercedes W212 / CLS C218

The presented seat belt buckle has been specifically designed for Mercedes E-Class W212 and CLS C218 models, for the right rear seat, accommodating the middle seat. This means that the mounting geometry, working angle, and cable length are adapted to the factory body and seat construction of these models.

Thanks to this, correct belt routing is maintained, as well as the proper position of the buckle relative to the seat and backrest, which directly impacts the effectiveness of the passive safety system.

Construction and Technical Function

The rear seat belt buckle plays a crucial role in the belt fastening system – it is responsible for the mechanical fastening of the buckle and transmitting the fastening signal to the vehicle's electrical system (if the car is equipped with such a system). The component's construction includes:

• Locking Mechanism – responsible for securely holding the belt buckle during driving and in emergency situations.
• Protective Housing – protecting the mechanism from dirt and mechanical damage during daily use.
• Factory Mounting Points – enabling installation in the original location on the seat or vehicle floor structure.

This solution allows for maintaining consistency with the factory safety system and minimizes the risk of incorrect installation.

Benefits of Using an Original Belt Buckle

Choosing an original seat belt buckle for your Mercedes W212 / CLS C218 offers a range of practical advantages:

• Full Compatibility with Seat Construction – no need for modifications, drilling, or fitting the part.
• Correct Cooperation with Seat Belts – proper buckle positioning relative to guides and anchor points.
• Compatibility with Vehicle Control Systems – potential for correct cooperation with seat belt fastening sensors (if present in the specific car configuration).
• Safe Performance in Emergency Situations – the buckle is designed to withstand loads occurring during sudden braking or collision.

With this component, you can restore the factory level of protection for rear seat passengers, without compromising on fit or quality of workmanship.

Condition, Verification, and Practical Application

The item is a used original component from disassembly. Such parts are often chosen for accident repairs, replacement of damaged buckles, or restoring full rear seat functionality after bodywork or upholstery interventions.

Before installation, it is recommended to:

• check compatibility by OEM number with the currently installed part or the manufacturer's catalog,
• verify the mounting location on the vehicle – rear, right side, accommodating the middle seat,
• inspect the locking mechanism's operation – smooth buckling and unbuckling of the belt.

If you want to ensure step-by-step that you are selecting the correct buckle for your car, our guide will be helpful: how to choose the right car part by VIN and OEM number. You will find practical tips there on how to compare parameters and what to ask the seller before purchasing.

Other Seat Belts and Parts for Mercedes

If you are also looking for other seat belts and parts for Mercedes – for example, for other seating positions or for a comprehensive replacement of system components – check out our dedicated category: Mercedes seat belts and parts. This will allow you to easily assemble a set of components matched to one manufacturer and maintain the consistency of the entire system.