BMW X3 F25 X4 F26 Side Airbag Front Left N/S Seat Control Unit Module 7238531

BMW F25 F26 Front Left Seat Airbag Cushion is an original safety component designed for installation in the driver's seat of BMW F25/F26 series models. Designed as an integral part of the SRS system, the seat cushion provides additional side and lower protection in the hip and thigh area, working in conjunction with other airbags and seatbelt pretensioners. Thanks to its factory OEM design, it is a precisely fitted component for the specific seat and body configuration.

Specifications and technical data

• SKU: 7238531
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7238531
• Substitutable numbers: 72127238531, 7238531
• Location on the vehicle: Front, Left
• Category: Other Interior Parts & Accessories

Purpose and Vehicle Placement

The presented seat cushion is intended for installation in the front left seating position, i.e., the driver's seat. Its placement within the seat structure effectively limits the forces acting on the lower body during a side or frontal impact with a lateral component. The element works with the airbag control module, collision sensors, and seatbelt pretensioners, forming a cohesive passive safety system in BMW F25/F26.

Technical Characteristics and SRS System Integration

The seat cushion is a factory component from BMW, prepared to operate within the vehicle's original SRS system. The design includes:

• a dedicated geometry matched to the driver's seat frame,
• a designed inflation zone, focused on protecting the hips and thighs,
• an electrical connector adapted to the airbag wiring harness in BMW F25/F26,
• a housing and airbag optimized for response time and controlled deployment.

This configuration allows for proper cooperation with the factory airbag controller, without the need for modifications to the electrical system or mechanical adaptation of the seat, provided the installation is carried out in accordance with manufacturer procedures.

Service Application and Part Selection

The BMW F25 F26 Front Left Seat Airbag Cushion is primarily intended as a replacement part after the airbag system has deployed or in case of mechanical damage to the seat. Replacement of this component is recommended when:

• the seat airbag has deployed after a collision,
• a driver's seat airbag circuit error appears during diagnostics,
• damage to the wiring harness or the airbag housing within the seat area is identified.

Part selection should be based on the OEM part number and interchangeable numbers, taking into account the body version and seat configuration. This ensures full compatibility with the vehicle's electronics and the correct operational characteristics of the safety system.

Condition, Installation, and Safety Aspects

The offered seat cushion is a used item, which means it comes from a dismantled vehicle and has been verified for its suitability for further use. Before installation, it is recommended to:

• check compatibility with the specific BMW F25 or F26 model,
• verify the seat's electrical system and airbag wiring harness,
• perform SRS system diagnostics after installation and clear any potential errors.

Due to the nature of a safety component, installation should be carried out by a person experienced in working with airbag systems, following power disconnection procedures and securing connectors. A correctly installed seat cushion restores the functionality of the factory driver protection system in the seat area.

If you are looking for other interior equipment and safety system components for your BMW, including parts installed in seats, consoles, or headliners, check the available parts in the Other BMW category.

Technical Support and BMW Parts Knowledge

When selecting used safety components for BMW, it is crucial to use reliable sources and verify compatibility based on part numbers and vehicle specifications. To better understand how to properly select original components and how they affect durability and driving precision, it is worth reading the material: BMW – Sporty Performance and Precision. How Used Original Parts Extend the Life of the Bavarian Icon?

For a comparison of powertrain, braking, and chassis systems in high-performance cars, you can also use the analysis available in the article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which shows how premium manufacturers design components for higher loads and performance requirements.