Airbag control unit with part number 50550297

What does the airbag control unit 50550297 do?

The airbag control unit 50550297 is the central control unit of the restraint system (SRS) for Alfa Romeo. It evaluates the signals from the crash sensors and decides in an accident which airbags and seatbelt pretensioners are triggered.

The evaluation takes place in milliseconds. The unit detects the strength and direction of the impact and activates only the matching restraint devices.

During operation it monitors all connected components and reports faults via the airbag warning light. The manufacturer number Bosch 0285013985 is also printed on the housing. After an accident, the unit stores crash data and locks itself.

Why does the control unit 50550297 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. These cannot be removed with a normal diagnostic tool. Other causes include aged electronic components, cold solder joints, moisture and corrosion, as well as voltage spikes.

Crash data also arises from impacts without an airbag deployment. It remains in the unit and cannot be removed with a normal diagnostic tool.

Aged components and cold solder joints lead to intermittent faults over time. Moisture and corrosion at plug connectors disrupt the connection additionally.

Voltage spikes, for example from a weak battery or jump-starting, can stress the electronics.

How can you tell that the 50550297 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, an error message appears, the diagnostic tool finds no connection to the control unit, or the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not deploy.

The warning light is the clearest sign. It shows the defect as soon as the system detects a fault.

An error message may appear in addition. If the fault memory cannot be cleared, have the cause clarified promptly.

Which vehicles is the 50550297 fitted in?

The 50550297 is fitted in these vehicles: Alfa Romeo Giulia 952 (2016-2023) and 952 Facelift (from 2023).

The list shows the vehicles that are recorded for this part number.

• Alfa Romeo Giulia 952 (2016-2023)
• Alfa Romeo Giulia 952 Facelift (from 2023)

Compare the part number on the label of the removed unit with this page. This only confirms that it is the correct unit.

Have the fault memory read out beforehand. Only then does it become clear whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 50567775.

How does the repair of the 50550297 work?

Processing at Airbag24 usually takes 3–4 working days. Beforehand, you read out the fault memory, disconnect the battery and remove the control unit. Then create a repair order online and send in the well-packed unit.

Airbag24 checks it on the test bench, replaces defective components, deletes the crash data and carries out a function test.

Afterwards, your own unit goes back to you.

Our repairs come with 2 years' statutory liability for defects.

The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.

How does the control unit 50550297 get to Airbag24?

You send the unit in as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Pack the printed repair order into the parcel and pack the unit shockproof.