What is a BMW i8 I12 airbag control unit?
The BMW i8 i12 airbag control unit is the central safety unit of your vehicle's occupant restraint system. It continuously monitors sensors, stores relevant crash data, and precisely controls the activation of all airbag modules and seatbelt pretensioners to ensure maximum protection in the event of an accident.
This sophisticated module is crucial for the passive safety of the BMW i8 I12.
It is deeply integrated into the vehicle network and communicates with other safety and diagnostic modules such as SRS, ACSM or RCM.
Why is the BMW i8 I12 airbag control unit defective?
The BMW i8 i12 airbag control unit can fail due to a variety of factors, often due to communication errors with the vehicle electrical system or internal malfunctions after a collision. Excessive electrical resistance in the ignition circuit can also lead to failure, requiring professional diagnosis and repair of the unit.
Common causes are internal hardware problems or damage caused by overloading.
After an accident, the control unit stores crash data, which requires replacement or a professional reset of the module before it functions properly again.
A defective control unit can cause the airbags to not deploy in the event of an accident or a warning light on the dashboard to remain permanently lit.
Common error codes for BMW i8 I12 airbag control unit repair
When repairing the BMW i8 I12 airbag control unit, specific error codes are crucial for identifying the exact cause of a malfunction. These codes directly indicate problems with the airbag control unit, from internal defects to communication problems, and facilitate precise diagnosis.
- **930BE8**: High-voltage system switch-off; Resistance too high in the airbag control module (ACSM4I) firing circuit. This error indicates problems with the electrical connection or the module itself, often in the context of the range extender system.
- **B1000**: Control Module Communication Error. This is a generic code indicating communication problems between the airbag control module and other vehicle systems.
- **93AE**: Driver airbag system error. This code indicates a malfunction that directly affects the control module or its connection to the driver airbag, not the airbag itself.
- **93AB**: Passenger airbag system fault. Similar to 93AE, this code indicates a communication issue with the control module or an internal component affecting the passenger airbag.
What part numbers are available for the BMW i8 I12 airbag control unit repair?
For BMW i8 I12 airbag control unit repairs, specific OEM part numbers are essential to ensure compatibility and functionality. Only genuine BMW part numbers guarantee full integration into the vehicle system and compliance with the highest safety standards.
The primary OEM part number for the BMW i8 I12 airbag control unit is **6818815**.
Additionally, the OEM number **32306993240** is verified as the original driver side airbag module for the BMW i8 (I12).
There are also comparable OEM numbers for 6818815, such as 9390579, 9381840, 9367838 and 9348934, which are also considered original parts and may be relevant for BMW i8 I12 airbag control unit repair.
Always ensure OEM quality to restore the proper function and safety of your BMW i8 I12.