Mercedes-Benz W207 A207 Rear Right O/S Seat Belt Buckle Tensioner A2078600469

The Mercedes W207 Rear Right Seat Belt Buckle is an original part from the Seat Belts and Parts group, designed for installation on the rear right side of the vehicle. It ensures proper seat belt anchoring, which translates to stable passenger restraint and correct interaction with Mercedes' factory safety systems.

Specifications and technical data

• SKU: A2078600469
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2078600469
• Substitutable numbers: A2078600469, A 207 860 04 69
• Location on the vehicle: Rear, Right
• Category: Seat Belts & Parts

Seat Belt Buckle Purpose and Function

The rear right seat belt buckle in the W207 body is responsible for the mechanical connection of the seat belt to the seat or body structure. A correctly chosen buckle:

• ensures a secure belt fastening without slack or accidental unbuckling,
• maintains a stable position of the buckle relative to the seat,
• works in conjunction with the factory belt locking mechanism,
• reduces the risk of improper belt routing by the passenger.

By being specifically designed for the rear right mounting position, the component maintains the correct mounting geometry, which is important for both comfort and passive safety.

Compatibility and Fit for Mercedes W207

The buckle has been specifically designed with the interior structure of the Mercedes E-Class W207 in mind, taking into account the shape of the rear seat, mounting points, and seat belt path. This means:

• factory fit for the rear right seating position,
• compatibility with original body mounting points,
• correct interaction with the standard seat belt in this position.

Such a precise fit minimizes the need for modifications and helps maintain consistency with other safety system components in the vehicle.

Performance Characteristics and Installation

As an original Mercedes part, the rear right seat belt buckle is prepared for installation in its factory location, maintaining the intended operational position. In practice, this means:

• installation as part of standard servicing procedures,
• no need for mounting adaptations or interference with the seat structure,
• preservation of the manufacturer-intended ergonomics for buckle operation.

This component comes from the Seat Belts and Parts group, ensuring structural consistency with other passenger restraint system components.

Importance of Seat Belt System Component Quality

The seat belt system in a Mercedes is designed as a complete unit – from the retractor, through the belt webbing, to the buckle. Using an original buckle on the rear right side helps maintain:

• predictable system behavior during sudden braking,
• correct belt positioning relative to the passenger's torso and hips,
• consistent operation with other safety features in the vehicle.

For Mercedes vehicles equipped with all-wheel drive, such as 4Matic, maintaining the full functionality of the safety system is particularly crucial at higher speeds and in varying road conditions. In this context, it is worth familiarizing yourself with the material discussing the characteristics of AWD drives – you can find it in the article xDrive, 4Matic, quattro, or 4Motion – Comparison of AWD Systems from BMW, Mercedes, Audi, and VW.

Why Consider a Used Seat Belt Buckle

The presented rear right seat belt buckle is offered as a used part, which allows for a lower repair cost while maintaining the original construction. For mechanical components of this type, maintaining correct geometry and the functionality of the locking mechanism is key – an original part from disassembly often meets these requirements more predictably than aftermarket replacements of unknown origin.

If you want to better understand the specifics of the used parts market and make informed purchasing decisions, it is worth reading the guide Used Car Parts: Myths and Facts You Need to Know, which discusses the most common concerns related to the use of such components.

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