BMW 5 Series E39 Side Airbag Impact Sensor 8381564

BMW 5 Series E39 Side Airbag Impact Sensor is a specialized component of the passive safety system, responsible for the precise detection of deceleration and the initiation of airbag deployment. As part of the Airbag parts group, the sensor works with the SRS control module, ensuring the proper response of the system in the event of a collision. This used OEM BMW component allows for a technically correct replacement of a damaged sensor without interfering with the installation structure.

Specifications and technical data

• SKU: 8381564
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8381564
• Substitutable numbers: 65776902054, 6902054, 65778381564, 8381564, 65778369024, 8369024, 65778375643, 8375643
• Tire profile: 65535
• Category: Airbag Parts

Purpose and role in the BMW E39 safety system

The impact sensor in the BMW E39 is responsible for analyzing the accelerations and forces acting on the body during a collision. Based on the signal from the sensor, the SRS controller makes the decision to deploy the airbags, which is crucial for the protection of the driver and passengers. A properly selected and functional impact sensor is essential for the airbag system to function according to the vehicle manufacturer's specifications.

Compatibility and integration with the BMW installation

The offered sensor has been designed as an element of the original BMW safety architecture, ensuring full compatibility with the electrical harness, SRS controller, and the body structure of the BMW E39. Installation takes place in the factory-designated location, which facilitates maintaining the correct geometry of force measurement and minimizes the risk of assembly errors. Using an original part from the Airbag parts group allows for maintaining the integrity of the entire safety system.

Technical characteristics and advantages of using the sensor

BMW 5 Series E39 Side Airbag Impact Sensor operates in a demanding environment where resistance to vibration, temperature changes, and humidity is essential. The sensor's design is prepared to work with the factory BMW SRS controller, which ensures:

• stable signal generation under dynamic body load conditions,
• correct interpretation of collision events by the control module,
• maintenance of factory airbag deployment thresholds,
• consistency with the safety system's onboard diagnostics.

Thanks to this, the airbag system maintains parameters close to factory settings, which is particularly important during professional post-accident repairs.

Condition, origin, and service application

The item comes from disassembly and is offered as a used part, which allows for an economical yet technically correct repair of the airbag system in the BMW E39. This type of component is often used in specialized workshops dealing with post-accident repairs, where compliance with factory specifications and the ability to correctly adapt to the existing system are paramount. Selecting the correct impact sensor is important both from the point of view of safety and the correctness of SRS error diagnostics.

Support with selection and expansion of the safety system

If you are planning a comprehensive repair or upgrade of the passive safety zone in your BMW and need other elements from the same group, such as side sensors, control modules, or SRS system harnesses, check the available parts in the BMW Airbag parts category.

For users who are simultaneously thinking about improving their car's performance while maintaining a functional safety system, a guide describing the use of components from disassembly in powertrain modifications may be helpful – you can find it in the article How to increase engine power: a practical guide to engine tuning with used parts.