Airbag control unit with part number 9264916

What is the function of Airbag Control Unit 9264916?

The airbag control unit with part number 9264916, manufactured by Bosch, is the central safety module (SRS module) for vehicles such as the BMW 1 Series E82 Coupe. It monitors all components of the restraint system, processes data from crash sensors, and is responsible for deploying airbags and seatbelt pretensioners in the event of a collision.

As the heart of the Supplemental Restraint System (SRS), this control unit continuously communicates with all relevant sensors in the vehicle, including acceleration sensors at the front and sides, as well as seat occupancy detectors. Upon impact, the module determines within milliseconds which restraint devices—such as front or side airbags and seatbelt pretensioners—must be activated to provide optimal protection for occupants.

In addition to its main part number 9264916, the module often carries specific Bosch references like 65.77-9264916-01 or equivalent numbers such as 0 285 001 530. Its proper functioning is essential for vehicle safety, as a malfunction can disable the entire airbag system.

Why does Airbag Control Unit 9264916 fail?

The most common cause of failure for control unit 9264916 is the storage of crash data after an accident, which prevents further operation. Other defects include internal electronic faults caused by aging or vibrations, often indicated by error codes such as 93D7 (Internal Error). Less frequently, external issues like damaged wiring can also impair functionality.

After an airbag deployment, the unit permanently stores so‑called crash data—a manufacturer‑imposed safety measure that locks the module, requiring replacement or professional repair. Simple clearing of the fault memory using a diagnostic tool is no longer possible.

Another frequent reason is internal hardware defects on the circuit board, which may manifest through specific error codes in the fault memory, such as 93BB (Ignition Circuit 2 Passenger Side), 93B3 (Ignition Circuit 2 Front Passenger Airbag), or 93AB (Passenger Airbag). These errors point to problems in the drive circuits for the respective airbag modules.

Although less common, malfunctions can also originate outside the control unit itself. Faulty wiring, loose connectors, or defective seatbelt buckles beneath the seats may send incorrect signals to the control unit, triggering error messages. A thorough diagnosis is therefore indispensable.

How do you recognize a defect in Control Unit 9264916?

A defect in Control Unit 9264916 primarily manifests as a permanently or intermittently illuminated airbag warning light on the instrument cluster. Often, the control unit can no longer be read via a diagnostic tool ("No Communication"), or specific error codes such as 93BB, 93AB, or 93D7 are stored in the fault memory.

The clearest symptom is the airbag indicator light. When the ignition is turned on, it should briefly illuminate during a self‑test lasting about three seconds and then go out. If the light remains on continuously or flashes, it indicates a fault in the SRS system, usually originating from the control unit itself.

Another clear sign is when a workshop cannot establish communication with the airbag control unit using a diagnostic tool. The message "No Communication" points to a serious internal fault within the module.

If error codes such as 93D7 (Internal Error) are detected during diagnostics, the root cause lies unequivocally within the control unit itself. Other codes like 93BB, 93B3, or 93AB indicate issues with the airbag ignition circuits, whose origin is often an internal defect in the control unit as well.

In which vehicles is Control Unit 9264916 installed?

The Bosch Airbag Control Unit 9264916 is primarily fitted in models of the BMW 1 Series. At Airbag24, we specifically cover the E82 Coupe and the E82 LCI Coupe. Due to technical similarities, this module may also be used in related series, such as the BMW 3 Series E90.

At Airbag24, we repair this control unit for the following BMW‑produced models:

BMW 1 Series E82 Coupe (model years 2007–2011)

BMW 1 Series E82 LCI Coupe (model years 2011–2013)

This control unit is commonly found in vehicles equipped with the 118d 2.0D engine producing 143 hp, but it is not limited exclusively to this model. Please always verify the part number on your removed control unit to ensure compatibility.

How does the repair of 9264916 proceed at Airbag24?

At Airbag24, the submitted Control Unit 9264916 undergoes a professional diagnosis to pinpoint the exact fault. This is followed by expert repair, which includes erasing stored crash data and fixing internal electronic defects. After a final functional test, the unit is returned to you with 2 years' statutory liability for defects.

The process begins with the proper removal of the control unit from the vehicle. In the BMW E82, it is often located beneath the rear seat or behind a cover. After removal, please ship the unit securely packaged to Airbag24.

Upon receipt at our specialized workshop, our technicians perform an initial inspection and analyze the fault memory. The repair focuses on addressing the identified causes, such as reprogramming the memory to clear crash data or replacing defective electronic components on the circuit board.

Compared to a new part, a repair is significantly more cost-effective and sustainable. Additionally, there’s no need to painstakingly program a new control unit into the vehicle, as the original component remains intact. We provide 2 years' statutory liability for defects on every repair performed.