Mercedes C140 Rear Upper Seat Belt Left N/S Side Pretensioner A1408601385

The Mercedes C140 Rear Left Seat Belt is an original part from the Seat Belts and Parts category, designed for installation on the rear left side of the vehicle. This is a solution for users who want to maintain the factory design of the safety system in their Mercedes, using a part that complies with the manufacturer's requirements.

Specifications and technical data

• SKU: A1408601385
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1408601385
• Substitutable numbers: A1408601385, A 140 860 13 85
• Location on the vehicle: Rear, Left
• Category: Seat Belts & Parts

Intended Use and Vehicle Placement

The presented rear left seat belt has been specifically designed for installation in the rear of the body, on the driver's side. Proper placement on the vehicle ensures the correct geometry for the belt's path, the proper functioning of the retractor, and compatibility with the factory mounting points in the body.

Thanks to its dedicated purpose for a specific position in the car, this component allows for:

• maintaining the correct passenger position relative to the seat and body,
• preserving predictable behavior of the safety system during sudden braking or collision,
• easier installation without the need for modifications to mounting points or interference with the interior structure.

Technical Characteristics and Construction

The seat belt belongs to the group of passive safety elements, where precision of execution and compliance with the manufacturer's design are crucial. The construction includes a retractor, belt, and mounting points adapted for the rear left side of the Mercedes body.

The main advantages of this solution include:

• factory fit to the body – appropriate belt length and guidance geometry,
• compatibility with original mounting points in the specific model,
• maintaining the integrity of the safety system without the need for adapters.

A component configured in this way allows for consistency with other safety system components, such as pretensioners or airbags, in line with Mercedes' design principles.

Benefits of Using an Original Mercedes Seat Belt

Choosing an original seat belt from the Seat Belts and Parts category is a solution for users who prioritize technical correctness and compliance with manufacturer documentation. In practice, this means:

• secure fit to the seat and body pillar, without issues with length or angle of guidance,
• consistency with factory anchor points, which facilitates installation and servicing,
• maintaining the original safety configuration intended for the specific C-Class model in the C140 version.

This approach is particularly important for premium vehicles, where the interior design and safety systems are precisely calibrated and require the use of appropriate components.

Condition, Application, and Part Selection

The offered seat belt is a used part, allowing for an economical restoration of the safety system's functionality while maintaining the original manufacturer's specifications. This is a good solution in situations where a damaged or malfunctioning rear left seat belt needs replacement, e.g., after a collision or due to wear of the retractor mechanism.

When selecting this type of component, it is worth paying attention to:

• compatibility with the specific body model and vehicle year,
• vehicle placement – in this case, rear, left side,
• consistency with other interior elements, such as seat mountings and plastic covers.

Other Seat Belts and Technical Knowledge

If you are also looking for other items from the Mercedes Seat Belts and Parts category, check out the Mercedes Seat Belts and Parts available in our assortment to select complete solutions for your car of this brand.

For those interested in a broader context of selecting original safety components and interior equipment, an article comparing the design of classic and modern models may be helpful, which also discusses the advantages of using OEM parts – you can find it here: Classic Mini vs. Modern MINI – Design Differences and the Role of Original Parts.

Summary

The Mercedes C140 Rear Left Seat Belt is a technically matched, original passive safety system component, designed for installation on the rear left side of the vehicle. It ensures the maintenance of the factory safety system configuration, proper interaction with the body structure, and consistency with other interior components of the Mercedes, which is crucial for passenger comfort and safety.