BMW E65 E66 E67 Airbag Rear Seat Sensor 6929558

BMW E65 E66 E67 Airbag Rear Seat Sensor is a specialized passive safety system component designed for installation in the rear body section of 7 Series models. It is responsible for precise monitoring of collision parameters and coordination with other airbag system components, ensuring consistent operation of the entire system. Thanks to a design compliant with BMW standards, the module maintains the factory logic of the system and proper fitment to the vehicle's electrical installation.

Specifications and technical data

• SKU: 6929558
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6929558
• Substitutable numbers: 65776929558, 6929558, 65776949906, 6949906, 65776924557 65770412293, 65776920481 65770153413, 6924557 0412293, 6920481 0153413
• Location on the vehicle: Rear
• Category: Airbag Parts

Purpose and function of the airbag sensor module

The presented airbag sensor module has been designed as a safety system component for the rear body zone. Its task is to analyze signals from acceleration sensors and transmit information to control the airbag system and seatbelt tensioners. A correctly selected and functional module allows for maintaining the factory operating characteristics of the system, which is crucial for passenger protection during a collision.

Thanks to the use of original BMW technology, the module communicates with the vehicle's communication bus and other control units, minimizing the risk of diagnostic errors and improper operation of the airbag system.

Compatibility and vehicle integration

The sensor module has been developed for the BMW 7 Series E65/E66 platform, which means it is matched to the electrical architecture, connector layout, and mounting method in the rear body section. Using the correct component from the Airbag parts group allows for maintaining:

• consistency with the factory safety control unit software,
• proper communication with the vehicle's diagnostic system,
• correct assignment of the module to the specific body zone.

Placement in the rear of the vehicle enables accurate mapping of collision conditions in this zone and proper transmission of information to the main airbag system control unit.

Performance characteristics and advantages of use

As an original BMW component, the airbag sensor module ensures compliance with the factory operating parameters of the safety system. In practice, this means:

• maintaining the manufacturer-intended logic for airbag and tensioner deployment,
• reducing the risk of incompatibility with the electrical installation and software,
• easier diagnostics using factory service tools.

The component from this group is particularly recommended for post-accident repairs when it is necessary to restore full functionality of the passive safety system in the rear of the vehicle.

Condition, origin, and technical aspects of installation

The offered module comes from dismantling and is a used part, which allows for cost-effective repair while maintaining the original manufacturer's specifications. Before installation, it is recommended to perform a standard diagnostic procedure and adaptation in the vehicle according to BMW service guidelines to ensure proper cooperation with the existing airbag system.

Due to safety reasons, the installation of the airbag sensor module should be carried out by a workshop experienced in working with SRS systems, observing procedures for disconnecting the power supply and subsequent verification of errors in the control unit memory.

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

Support in choosing a used module

When selecting a used airbag sensor module, it is worth paying attention to compliance with manufacturer markings, vehicle placement, and the repair history of the safety system. It is also good practice to verify whether the vehicle from which the part originates had activated airbags in the rear zone, which may influence the decision regarding installation.

To better prepare for the purchase and avoid common problems related to tuning and replacing safety components, check out the guide Buying used car parts • Most common mistakes when choosing tuning parts, which discusses practical aspects of selecting used components. Additionally, if you want to clear up doubts regarding the quality and durability of dismantled parts, the article Used car parts: Myths and facts you need to know will be helpful.