Mercedes SLK R171 Seat Belt Lower Tensioner Front Right O/S Buckle A1978600269

Mercedes SLK R171 front right seat belt buckle tensioner is a specialized component from the Seat belts and parts category, designed for installation on the front right passenger or driver's side, depending on the vehicle's configuration. This OEM solution allows you to restore the proper functioning of the safety system in your Mercedes SLK R171 after a collision, interior upgrade, or replacement of worn-out components.

Specifications and technical data

• SKU: A1978600269
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1978600269
• Substitutable numbers: A1978600269, A 197 860 02 69
• Location on the vehicle: Front, Right
• Category: Seat Belts & Parts

Purpose and Function in the Safety System

The described seat belt buckle tensioner and buckle are responsible for the mechanical and sensor connection of the belt to the seat structure on the front right side. A correctly selected component in this location is crucial for:

• stable fastening of the seat belt buckle during daily vehicle operation,
• proper interaction with the vehicle's safety systems (including belt pretensioning in emergency situations),
• maintaining the factory belt routing geometry relative to the seat and body.

The vehicle location specified as front – right side clearly identifies the installation position and reduces the risk of errors when selecting parts.

Construction and Fit for Mercedes SLK R171

The seat belt buckle tensioner and buckle for the SLK R171 is designed as a component dedicated to a specific Mercedes platform. This means that:

• mounting points are compatible with factory holes and brackets in the seat and center console,
• the geometry and length of the assembly are adapted to the cabin structure of the SLK R171 roadster,
• electrical connectors (if present in a given version) are compatible with the vehicle's wiring harness.

This allows the part to be used as a replacement for the factory-installed component, without the need for structural modifications or adaptation of mountings.

Performance Characteristics and Installation

As a component from the Seat belts and parts category, the front right seat belt buckle tensioner and buckle in the Mercedes SLK R171 significantly impacts the comfort and safety of daily driving. A correctly selected and installed component ensures:

• secure belt fastening with a clear, audible click of the buckle,
• consistent operation of the release mechanism when unbuckling the belt,
• compatibility with the vehicle's diagnostic systems – no errors related to the seat belt system after correct installation.

Due to its importance for safety, installation by a person experienced in working with seat belt systems is recommended, along with adherence to the vehicle manufacturer's service procedures.

Condition, Origin, and Practical Application

The offered component is an original Mercedes part in used condition, allowing for an attractive price while maintaining factory specifications. This solution is particularly beneficial in situations where:

• post-collision repair is necessary after the pretensioners have deployed,
• the buckle mechanism is being replaced due to mechanical wear,
• missing interior components are being sourced for an SLK R171 restoration project.

Choosing a used OEM component helps maintain consistency with other safety system elements and reduces the risk of compatibility issues.

Part Selection by Numbers and Technical Support

When selecting components such as the front right seat belt buckle tensioner and buckle for a Mercedes, it is advisable to use manufacturer designations and interchangeable part numbers. This helps avoid errors between body versions, model years, or equipment variants. If you want to better understand how to select used OEM parts by numbers and how this translates to safety and durability, read the article: Audi's Five-Cylinder Engine – A Legend and Selecting Used OEM Parts by Numbers, which discusses the practice of using catalog and VIN numbers when purchasing components in more detail.

If you are looking for other parts from the Seat belts and parts category for Mercedes, check out our offer on Mercedes seat belts and parts, where you will find a wide selection of compatible solutions for various models of this brand.