BMW E84 E90 E90N E91 E91N LCI Air Module Bag Driver's Side 6774945

Visual condition of the part 

The product shows signs of use visible in the photos. 

BMW E84 E90 E90N E91 E91N LCI Air Module Bag Driver's Side is an original safety component designed for installation in the steering wheels of 3 Series E90 and E91 models. It is a factory-fitted driver's airbag from the Steering wheels and horn buttons category, specifically engineered for BMW safety systems. By choosing this component, you ensure compatibility with the factory installation and consistency with the rest of the airbag system components.

Specifications and technical data

• SKU: 6774945
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6774945
• Substitutable numbers: 32306779829, 6779829, 32306774945, 6774945, 32306772866, 6772866, 32306779830, 6779830, 32306772865, 6772865, 32306774946, 6774946, AS
• Category: Steering Wheels & Horn Buttons

Purpose and function in the safety system

The driver's airbag in the BMW E90/E91 is a key element of the passive safety system, working in conjunction with crash sensors, the SRS control unit, and seatbelt tensioners. Mounted centrally in the steering wheel hub, it is responsible for reducing the forces acting on the driver during a frontal or oblique collision. The OEM design ensures proper deployment geometry, tailored to the driving position and the characteristics of the 3 Series cabin.

Thanks to its factory design, the airbag works with the original electrical wiring, connectors, and control module, which minimizes the risk of system errors and facilitates diagnostics after installation.

Compatibility with BMW steering wheel and installation

The presented airbag belongs to the Steering wheels and horn buttons group, meaning it has been designed for direct integration with the factory BMW 3 Series E90/E91 steering wheel. The housing shape, mounting points, and electrical sockets are matched to the original steering column and wiring harness, ensuring that the installation process is orderly and predictable.

The original design ensures:

• proper fit with the steering wheel rim and column covers,
• correct positioning of the airbag module relative to the driver,
• compatibility with factory horn buttons and the control harness.

Characteristics of the original BMW part

As a BMW brand component, the driver's airbag has been designed in accordance with the manufacturer's internal safety, reliability, and durability standards. This means maintaining operating parameters consistent with the vehicle's factory configuration, including:

• the manufacturer-designed deployment characteristics,
• integrated cooperation with the airbag system control module,
• proper fitment to the dashboard and steering column structure.

Choosing an original component allows you to maintain the integrity of the entire safety system, which is particularly important for elements responsible for driver protection.

Condition, verification, and installation aspects

The driver's airbag is offered as a used part, which allows for a significant reduction in repair costs compared to purchasing a new OEM element, while maintaining the factory design. Before being listed, components of this type are standardly verified for visual compliance, connector completeness, and the absence of housing damage, which facilitates subsequent installation.

Due to the nature of this safety component, installation should be performed by a person with experience in SRS systems, following the manufacturer's procedures (disconnecting power, checking for control unit errors, testing the airbag warning light after installation). A correctly installed airbag works with the existing vehicle installation without the need for modifying wiring or mounts.

Benefits of using an original airbag

Using an original driver's airbag in a BMW E90/E91 primarily ensures the integrity of the safety system and consistency with factory service documentation. Additionally, it:

• facilitates computer diagnostics thanks to predictable operating parameters,
• reduces the risk of incompatibility with the control module and crash sensors,
• allows the vehicle interior to be restored to a look close to factory condition.

For users who are upgrading or restoring factory equipment, this is a solution that is technically consistent with the rest of the steering system.

If you are planning a comprehensive repair or upgrade of the steering area in your BMW and need other elements from the same group, such as steering wheel rims, button modules, or center covers, check out the available parts in the BMW Steering wheels and horn buttons category.

More about interior upgrades and used parts

When replacing the driver's airbag, it is often worth considering refreshing the steering wheel or other cockpit elements. Practical tips on component selection, compatibility, and installation methods can be found in the article Premium interior for half the price: second-hand seats, steering wheels, and multimedia, which discusses how to effectively use used interior equipment.

If you want to better understand the importance of original components in the context of safety and durability, the guide Quality guarantee and OEM safety – why used original car parts are the best choice for your vehicle?, which describes the advantages of using factory parts in vehicle repairs and upgrades, may also be helpful.