BMW F10 F11 Lower Seat Belt Latch Buckle Rear Right O/S 7243274

BMW F10 F11 Right Rear Seat Belt Pretensioner is an original part from the Seat Belts and Parts category, designed for installation on the rear right side of BMW 5 Series F10/F11 vehicles. A used pretensioner ensures a factory fit, maintaining proper interaction with the passive safety system and vehicle electronics.

Specifications and technical data

• SKU: 7243274
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7243274
• Substitutable numbers: 72117243274, 7243274, EM
• Location on the vehicle: Rear, Right
• Category: Seat Belts & Parts

Purpose and Function of the Seat Belt Pretensioner

The seat belt pretensioner is responsible for controlled tightening of the belt against the passenger's body in the event of a collision, which limits the movement of the person sitting on the rear right seat. For BMW F10/F11 models, using the correct pretensioner is crucial for maintaining the proper operation of the SRS system and compliance with factory safety parameters.

The component is installed on the rear right side of the vehicle and works in conjunction with the seat belt and the airbag control module. This ensures that the system reacts predictably, in line with the manufacturer's design.

Why Use an Original BMW Pretensioner

For components such as seat belt pretensioners, maintaining full compatibility with the body structure and electronics is paramount. An original BMW component from the Seat Belts and Parts category ensures:

• a secure fit to the mounting points in the body,
• proper interaction with the factory airbag controller,
• maintenance of the manufacturer's intended operational characteristics in an emergency situation.

A used OEM part also allows for maintaining the integrity of the entire safety system without the need for modifications to the installation or interference with the wiring harness.

Condition, Installation, and Service Aspects

The seat belt pretensioner is offered as a used part, allowing for economical repair while maintaining the original BMW specification. Before installation, a standard visual inspection and check of electrical connectors for mechanical damage are recommended.

During installation, it is important to:

• apply the correct torque values for the mounting bolts,
• properly route the seat belt with respect to guides and anchor points,
• perform SRS system diagnostics after completion of work to confirm no errors in the controller.

Due to the nature of the component, it is recommended that installation be carried out by a qualified workshop experienced with safety systems in BMW 5 Series vehicles.

Safety and SRS System Compliance

The seat belt pretensioner works with collision sensors and the airbag control unit, so its correct operation directly impacts the level of passenger protection. Using the correct component on the rear right side allows for maintaining:

• temporal synchronization of the pretensioner and airbag deployment,
• predictable belt tension at the moment of collision,
• compliance with factory safety system control algorithms.

For vehicles subjected to intensive use or after accident repairs, replacing a damaged pretensioner with an original part is one of the key steps in restoring the full functionality of the SRS system.

Related Products and Technical Knowledge

If you are looking for other BMW seat belts and parts for your car, check out the BMW seat belts and parts available in our store to select a complete solution for your vehicle's interior.

Want to better understand how the availability of used OEM parts affects repair time and service costs? Read the article on our blog: Availability of Car Parts Off-the-Shelf vs. Repair Time – How Used OEM Parts Shorten Workshop Stays?, where we discuss the practical aspects of using original, used components in professional repairs.