Seat Belt BMW X3 F25 X4 F26 Upper Seatbelt Rear Left N/S Black 7258445

The BMW X3 F25 X4 F26 Left Rear Seat Belt is an original part from the seat belts and parts category, designed for installation on the rear left side of the vehicle. The black color ensures consistency with the factory interior finish of BMW, and the OEM construction guarantees proper functioning of the passenger safety system.

Specifications and technical data

• SKU: 7258445
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7258445
• Substitutable numbers: 72117258445, 7258445, EM
• Location on the vehicle: Rear, Left
• Color: Black
• Category: Seat Belts & Parts

Intended Use and Fitment for BMW X3 F25 / X4 F26

The presented BMW left rear seat belt has been specifically designed for the X3 F25 and X4 F26 models. This means maintaining factory mounting geometry, appropriate belt length, and compatibility with the vehicle's original anchor points.

The placement on the vehicle is rear – left side, which is crucial when selecting the part for a specific installation location. This ensures the belt works with original buckles, pretensioners, and guides, providing correct positioning relative to the seat and body.

Construction, Color, and Interior Integration

The belt is made in a black color, typical for most BMW X3 F25 and X4 F26 interior configurations. This facilitates aesthetic integration with upholstery, pillars, and headliner, without requiring modifications to other cabin elements.

The original construction from the seat belts and parts category ensures:

• proper operation of the retractor mechanism – controlled unwinding and locking of the belt during sudden braking,
• stable mounting to the body – in accordance with BMW's factory mounting points,
• consistent appearance with other belts – no differences in shade or texture of the belt compared to the original equipment.

Benefits of Using an Original Seat Belt

Choosing an original seat belt for the BMW X3 F25 / X4 F26 is a solution that translates to:

• maintaining the factory safety level – the belt works with the passenger protection systems designed by the manufacturer,
• guaranteed fitment – no need for modifications to mountings or interference with the body structure,
• easier diagnostics – unambiguous identification of the part in BMW service documentation.

The part comes from the BMW offering, which means compliance with manufacturer standards regarding durability, locking mechanism, and interaction with other safety system components.

Application in Service and Accident Repairs

This BMW rear left seat belt is particularly suitable for:

• accident repairs, where pretensioners have deployed or the belt has been damaged,
• restoring full functionality of the rear seat after replacing seats or upholstery elements,
• safety system service, when a part compliant with factory specifications is required.

By maintaining the original construction, installation proceeds predictably, and the belt operates as intended by the vehicle manufacturer after installation.

Other BMW Seat Belts and Technical Knowledge

If you are looking for other BMW seat belts and parts for your car, check out our dedicated category: BMW seat belts and parts. You will find a wide selection of parts for various models of this brand, which will help you complete the entire safety system.

When working on vehicle safety and handling, it is also worthwhile to expand your knowledge of cooperating systems. See the article on our blog “Steering System and Power Steering – How It Works and What Fails?”, where we discuss the principles of the steering system, common fault symptoms, and practical service tips.

Summary

The BMW X3 F25 X4 F26 Left Rear Seat Belt is an original, black part designed for installation on the rear left side of the vehicle. Thanks to its factory fitment for the X3 F25 and X4 F26 models, it allows for the restoration of proper passenger safety system operation, while maintaining visual consistency of the interior and compliance with BMW manufacturer requirements.