BMW X3 E83 Roof Curtain Head Air Modulo Left N/S Black 3405191

BMW X3 E83 Roof Curtain Head Air Modulo Left N/S Black is an original side safety system component designed for installation on the left side of the BMW X3 E83 model. This used curtain airbag allows for professional repair of the passive safety zone after a collision, while maintaining factory mounting geometry. It is a solution for workshops and users who expect consistency with the original BMW design and a precise fit to the vehicle's body structure.

Specifications and technical data

• SKU: 3405191
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3405191
• Substitutable numbers: 72120360499, 0360499, 72123405191, 3405191, 721234202265, 34202265
• Location on the vehicle: Left
• Color: Black
• Category: Other Interior Parts & Accessories

Purpose and function in the vehicle

The left curtain airbag is responsible for protecting the head and upper torso of the driver and passengers on that side of the vehicle during side impacts and rollovers. The component works in conjunction with crash sensors and the airbag control unit, forming a cohesive passive safety system in the BMW X3 E83. Thanks to the factory design, the proper gas expansion zone and predictable inflation path along the side of the cabin are maintained.

Construction, color, and fitment

The curtain has been designed specifically for installation on the left side of the body, taking into account the shape of the pillars, roof, and side upholstery. The black color of the visible elements after installation allows for aesthetic integration into the typical BMW interior finish without disrupting the factory look. The design provides for the use of original mounting points, which facilitates service work and reduces the risk of installation errors.

Benefits of using an original curtain

Using an original curtain airbag in the BMW X3 E83 ensures:

• maintenance of factory operating parameters of the airbag system in the side zone,
• proper fit to the roof structure and pillars on the left side,
• consistency with other passive safety system components,
• aesthetic integration with the black interior finish.

For workshops specializing in post-accident repairs, this means easier quality control of the service performed and the ability to maintain the vehicle manufacturer's standards.

Professional installation and service application

Due to the nature of the component and its impact on safety, the installation of the curtain airbag should be carried out by a qualified service center using appropriate diagnostic procedures. Proper positioning, fastening, and connection to the vehicle's electrical system are crucial for the correct operation of the system in an emergency. The used curtain can be used both for post-accident repairs and for specialized service work within the airbag system.

If you are planning a comprehensive repair or upgrade of the side safety zone in your BMW and need other components from the same group, such as curtains, front airbags, or seat belt tensioners, check the available parts in the Other BMW category.

Safety, standards, and technical knowledge

Safety systems in modern cars, such as the BMW X3 E83, are designed with a high safety margin and precisely tuned control electronics. For those interested in deepening their knowledge about the differences in construction and the approach to performance and safety in premium cars, an article discussing the sports versions of one of the leading manufacturers may be helpful. In this context, it is worth reading the material Audi RS vs other models – what is hidden under the hood and chassis?, which shows how manufacturers differentiate technical solutions depending on the vehicle's purpose.