Seat Buckle Mercedes W204 Tensioner Lower Belt Rear Left N/S A2048602569

Mercedes W204 Rear Left Seat Belt Buckle is an original part from the seat belts and parts category, designed for installation on the rear left side of the vehicle. It ensures proper seat belt fastening, which translates to safe operation of the safety system in the Mercedes W204, in line with the manufacturer's specifications.

Specifications and technical data

• SKU: A2048602569
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2048602569
• Substitutable numbers: A2048602569, A 204 860 25 69, KZ
• Location on the vehicle: Rear, Left
• Category: Seat Belts & Parts

Seat Belt Buckle Purpose and Function

The presented rear left seat belt buckle is a component of the passenger protection system for the rear seat. It is responsible for stable, mechanical belt fastening and proper cooperation with the pretensioners and retractor, which is crucial for safety during sudden braking or collision.

Thanks to its genuine Mercedes origin, correct dimensional tolerances, mounting geometry, and latch operating characteristics are maintained. This allows for secure buckle fastening without play, rattling, or the risk of accidental release.

Construction and Fit for Mercedes W204

The buckle has been specifically designed for the W204 platform, taking into account the rear seat structure, mounting points, and belt routing. Its placement on the vehicle is specified as rear – left side, which facilitates unambiguous part selection for accident repairs or replacement of worn components.

The original design ensures:

• correct fitment with factory mounting points in the body,
• design-compliant working position relative to the seat and backrest,
• compatibility with the factory seat belt on the rear left side.

Benefits of Using an Original Seat Belt Buckle

Choosing an original buckle in the seat belts and parts category is important not only for safety but also for user ergonomics. The latch mechanism is adapted to the forces acting during operation, and the socket geometry minimizes the risk of incomplete fastening.

• Structural Safety – component designed in accordance with vehicle manufacturer standards.
• Stable Belt Fastening – proper latch operation and secure buckle holding.
• No Modifications Required – installation in place of the factory buckle, without body adaptations.
• Consistency with Other System Components – maintaining predictable operation of the entire seat belt system.

Application in Accident Repairs and Servicing

The rear left seat belt buckle is particularly important for repairs after collisions where the seat belts have deployed or the interior has been damaged. Replacing it with an original part restores the factory level of passenger protection on the rear seat, without compromising on quality and fit.

If you are planning a comprehensive interior repair after a road incident, it is worth checking out the guide on selecting used body and equipment parts: Body and Chassis – Accident Repairs Using Dismantled Parts. You will find practical tips there on how to safely use OEM parts from dismantling.

Other Seat Belts and Parts for Mercedes

If you also need other components from the Mercedes seat belts and parts category – such as additional buckles, retractors, or complete seat belts for this manufacturer – check the available assortment in our section: Mercedes seat belts and parts. This will allow you to easily assemble a cohesive set of components for your car of this brand.