Airbag control unit with part number 50558480

What does the airbag control unit 50558480 do?

The airbag control unit 50558480 is the central control unit of the restraint system (SRS) for Alfa Romeo. It evaluates the signals from the crash sensors, decides on airbags and seatbelt pretensioners within milliseconds in a crash, and monitors the system continuously.

The manufacturer's part number Bosch 0285014899 is also printed on the housing. The unit stores faults in the fault memory and indicates them via the airbag warning light.

After a crash, it stores crash data and locks itself. Only the repair lifts the lock.

Why does the control unit 50558480 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. It cannot be erased with a normal diagnostic tool. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or jump-starting.

Airbag24 erases the crash data during the repair, after which the unit can be checked again.

The other causes are of a general nature. Which of them applies is only shown by the check at Airbag24, on the unit itself.

How can you tell that the 50558480 is defective?

The airbag warning light in the instrument cluster lights up on the 50558480 permanently or intermittently. It may be accompanied by a fault message in the instrument cluster, no connection to the diagnostic tool, and a fault memory that cannot be cleared.

The warning light is the clearest sign. If you notice any of these signs, airbags and seatbelt pretensioners may possibly fail to trigger in an emergency.

Therefore, take the warning light seriously.

Which vehicles is the 50558480 fitted in?

The 50558480 is fitted in these vehicles: Alfa Romeo Giulia 952 (2016-2023) and 952 Facelift (from 2023).

This list shows the assigned vehicles:

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

Comparing the part number on the label of the removed unit with this page only clarifies whether it is the right unit. Have the fault memory read out beforehand, because only this log shows 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 50558480 work?

You first have the fault memory read out and enclose the log. Then disconnect the battery. Only then remove the control unit 50558480, create a repair order online and send it in well packed.

Airbag24 checks the unit on the test bench, repairs defective components, erases the stored crash data and carries out a function test. The processing time is usually 3–4 working days; this time only applies to checking, repairing and testing.

Afterwards, your own unit is returned 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 50558480 get to Airbag24?

You send the control unit 50558480 as a parcel to Airbag24, or book a UPS collection for an extra charge. Airbag24 returns it to you by UPS after the repair.

The printed repair order goes into the parcel, and the unit must be packed shock-proof.