BMW X3 X5 Z4 E53 E83 E85 Seat Lower Belt Tensioner Buckle Front Right 9119540

BMW X3 X5 Z4 E53 E83 E85 Front Right Seatbelt Pretensioner is an original part from the Seatbelts and Parts category, designed for installation on the front right side of BMW vehicles. The product ensures proper cooperation with the factory safety system and is structurally adapted to the indicated models.

Specifications and technical data

• SKU: 9119540
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9119540
• Substitutable numbers: 72119119540, 9119540, 72118408762, 8408762, 72117078042, 7078042
• Location on the vehicle: Front, Right
• Category: Seat Belts & Parts

Seatbelt Pretensioner Purpose and Function

The seatbelt pretensioner is responsible for controlled belt tightening upon activation of the safety system, which limits the movement of the driver or passenger's body. For BMW X3, X5, and Z4 models, its correct operation is crucial for maintaining factory protection parameters during a collision.

The presented part is intended for the front right side of the vehicle, allowing for precise fitting to the driver's or passenger's seat depending on the specific model's configuration. The pretensioner's design is integrated with the seatbelt mounting, ensuring the correct belt path geometry and cooperation with the body's anchor point.

BMW Model Compatibility

The pretensioner has been designed for selected generations of BMW X3, X5, and Z4, meaning that the mounting points, operating angle, and assembly length are adapted to factory seats and the center console structure. This ensures that after installation, the following are maintained:

• Correct seatbelt buckle position relative to the seat and backrest,
• Proper cooperation with the airbag system and safety control unit,
• Appropriate mounting rigidity to the body structure.

This part comes from the BMW OE line, meaning it is a component that meets the manufacturer's original specifications, not an aftermarket replacement with unknown parameters.

Technical Characteristics and Installation

The front right seatbelt pretensioner is structurally prepared for cooperation with the factory seatbelt and the vehicle's electrical system. The assembly includes a tensioning mechanism and a connector for linking with the vehicle's wiring harness, enabling correct communication with the safety system's control module.

During installation, it is recommended to:

• Use the factory mounting points in the floor and near the seat,
• Verify the correct connection of the electrical connector and clear any potential errors in the control unit,
• Check the free movement of the belt after installation – ensuring it does not rub against the center console or seat elements.

Due to the nature of a safety component, installation should be performed according to BMW's service procedures, observing the correct tightening torques for mounting bolts.

Product Condition and Benefits of Choosing a Used Part

The seatbelt pretensioner is offered as a used part, sourced from dismantling. Such components, when properly selected, allow for the economical restoration of the vehicle's full safety system functionality, without the need to invest in a new OE part.

Choosing a used BMW OE pretensioner offers:

• Cost savings on servicing while maintaining original specifications,
• Better fitment compared to many low-cost aftermarket alternatives,
• Consistency with the specific BMW model's factory safety system.

Safety, Diagnostics, and Seasonal Preparation

A functional seatbelt pretensioner is important not only in severe collisions but also in sudden braking situations, where the system may partially activate its protective functions. It is advisable to periodically check the condition of parts in the Seatbelts and Parts category, especially in vehicles subjected to intensive use or after accident repairs.

If you are preparing your car for tougher road conditions and want to approach safety comprehensively, check out the practical tips in the article “Winter Essentials: Which Used Car Parts Are Worth Checking and Replacing Before the Frost?”. You will find checklists and information on how to consciously select used components.

Other BMW Seatbelts and Parts

If you are looking for other BMW seatbelts and parts, including components for other cabin locations or different model generations, explore our dedicated category BMW Seatbelts and Parts, where you will find a wide selection of original parts from dismantling.