What is a Porsche 911 Carrera 4 997 airbag control unit?
The Porsche 911 Carrera 4 997 airbag control unit is the central safety unit that activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors sensors, stores relevant crash data, and ensures the proper and timely operation of all airbag modules installed in the vehicle.
This original Porsche component is specifically designed for the 997 series from model years 2005 to 2008. It is essential for the active and passive safety of coupé and convertible models.
The unit continuously monitors signals from acceleration sensors and other systems. In the event of a collision, it instantly deploys the airbags to provide optimal protection for the occupants.
Why is the Porsche 911 Carrera 4 997 airbag control unit defective?
The Porsche 911 Carrera 4 (997) airbag control unit often fails because it stores crash data after an accident and then freezes. Internal software errors, problems with the trigger unit, or damaged memory can also lead to failure. A professional diagnosis of the fault is essential for a successful repair.
A common reason for failure is the storage of crash data after an impact, even in minor accidents. This data blocks the system, causing the airbag warning light to remain active.
Internal software errors or defects in the trigger unit can also damage the control unit. Such problems often manifest themselves through specific error codes that indicate immediate repair.
Common error codes for Porsche 911 Carrera 4 997 airbag control unit repair
During a Porsche 911 Carrera 4 997 airbag control unit repair, certain error codes directly indicate a fault in the control unit. These are crucial for diagnosing the problem and ruling out sensor or belt tensioner faults. The codes are read using a diagnostic device in the workshop.
- 80BA → Software error in the airbag control unit → Internal software defect of the ECU
- 80BF → Trigger unit faulty → Malfunction of the internal trigger logic
- 80D6 → Trigger unit faulty → Problems with the airbag ignition control
- 8057 → Error reading the control unit memory → Defect in the internal memory or communication problem
These codes are specific to the airbag control unit (ECU) and not to other components of the airbag system. They help identify the specific cause of the failure.
A stored crash status is also a common reason for the need for repair. This status is not a fault code, but must be professionally reset after an accident.
What part numbers are available for the Porsche 911 Carrera 4 997 airbag control unit repair?
For the Porsche 911 Carrera 4 997 airbag control unit repair, the two 100% verified OEM part numbers 997.618.217.04 and 997.618.217.08 are the only relevant ones. These genuine Porsche parts are exclusively approved for the 997 series (approximately 2005-2008). They ensure full compatibility and safety for your vehicle.
These numbers have been verified using trusted Porsche original parts systems and professional spare parts databases. They are listed exclusively for the airbag control unit and not for any other modules.
Alternative or aftermarket part numbers without a Porsche OEM warranty are not common for this safety-critical component. Airbag control units are factory-coded and often require special handling, even during repair.
If you're considering a repair or replacement, we always recommend consulting a qualified Porsche specialist. After installation, recoding the vehicle is often necessary.