BMW 1 Series E81 E82 E87 LCi Side Airbag Front Left Seat N/S NAUTILUSGRAU

BMW 1 Series E81 E82 E87 LCi Side Airbag Front Left Seat N/S NAUTILUSGRAU is an original component from the Airbags category, designed for installation in the driver's seat in the front left section of the vehicle. Designed as an integral part of the BMW safety system, this side seat airbag ensures precise structural fitment and stable integration with the factory vehicle electronics. This is a solution for users who want to restore full side protection functionality after a collision or seat replacement, while maintaining compliance with BMW factory standards.

Specifications and technical data

• SKU: 7140563
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7140563
• Substitutable numbers: 72127140563, 7140563, 877140563065
• Location on the vehicle: Front, Left
• Category: Airbags

Purpose and function in the safety system

The described side seat airbag is designed to operate in the front left cabin zone, where it is responsible for protecting the driver's torso during side impacts. Mounted inside the seat cushion or backrest, it works in conjunction with crash sensors and the airbag control unit to form a cohesive passive safety system. Thanks to its factory geometry and properly selected inflation volume, this component allows for controlled distribution of forces acting on the driver's body at the critical moment.

Compatibility with BMW E81, E82, E87

The side seat airbag has been developed specifically for the BMW E81, E82, and E87 series, which translates into a proper fit for the seat structures used in these models. This means compatibility with factory mounts, correct electrical harness routing, and proper operation with the original airbag system control unit. Using a dedicated component reduces the risk of installation errors and minimizes the need for mounting modifications.

Technical characteristics and installation

As an element from the Airbags category, this product is adapted to work in the demanding environment of the vehicle interior, taking into account temperature changes, vibrations, and mechanical loads resulting from seat usage. The design provides for compatibility with factory electrical connectors, which facilitates proper connection to the vehicle harness. Placement in the front left part of the car requires maintaining the correct installation orientation so that the airbag deployment direction is consistent with the manufacturer's specifications.

When replacing, it is recommended to:

• remove the seat in accordance with the BMW service procedure,
• disconnect the vehicle power supply before working on the airbag system,
• check the condition of the harness and connectors for mechanical damage or corrosion,
• after installation – verify errors in the safety system control unit using an appropriate diagnostic tester.

Benefits of using an original side seat airbag

Using a dedicated side seat airbag in the BMW E81, E82, E87 allows for maintaining the integrity of the entire passive safety system. You receive a component designed for a specific seat structure, which translates into:

• maintaining the airbag inflation characteristics intended by the manufacturer,
• proper cooperation with crash sensors and the control unit,
• proper fit to the upholstery and seat structure,
• reducing the risk of airbag system errors appearing on the instrument cluster.

For users who consciously care about the condition of the safety system, choosing an original side seat airbag is a solution that allows for restoring factory side protection parameters in the cabin.

Component condition and practical application

The offered side seat airbag is a used part, which in practice means an attractive cost-to-functionality ratio while maintaining the original BMW construction. This type of component is particularly useful for post-accident repairs, replacing a damaged seat, or restoring full functionality of the airbag system after other system elements have been triggered. By choosing this product, you can economically recreate the safety configuration provided by the factory for your car.

If you are planning a comprehensive repair or upgrade of the interior safety zone in your BMW and need other elements from the same group, such as side curtain airbags, steering wheel airbags, or passenger airbags, check the available parts in the BMW Airbags category.

For drivers interested in the wider use of used electronic components in the car, including elements cooperating with the safety system, a guide on selecting and installing modules and sensors may be helpful – you will find it in the article Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.