Airbag control unit with part number 285581719R

What does the airbag control unit 285581719R do?

The airbag control unit 285581719R is the central control unit of the restraint system (SRS) in Renault vehicles. It checks the signals from the crash sensors, selects the airbags and seatbelt pretensioners to be triggered within a few milliseconds in an accident, and monitors the system permanently. It reports faults to the airbag warning light; after an accident, it stores crash data and locks itself.

The unit works throughout driving operation and constantly evaluates whether all connected components are functioning. It stores any irregularities in the fault memory.

A unit that controls triggering is safety-relevant. If it fails, not just a warning display is affected, but the protective effect of the vehicle.

Why does the control unit 285581719R fail?

Stored crash data is considered the most common cause for 285581719R, even if no airbag has deployed; a normal diagnostic tool cannot delete them. Other causes are aged electronic components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes, such as from a weak battery or a jump start.

Stored crash data is no proof of damage to the unit. Airbag24 deletes it during the repair, and checks the condition of the other components on the test bench.

How can you tell that the 285581719R is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, accompanied by an error message in the instrument cluster. In addition, this applies if the diagnostic tool cannot establish a connection to the control unit 285581719R or the fault memory cannot be cleared. Airbags and seatbelt pretensioners may then not deploy in an emergency.

If any of these indications appear, have the vehicle checked promptly.

Only reading it out shows which entries are in the fault memory. The light alone names neither the affected component nor the cause.

Which vehicles is the 285581719R fitted in?

The airbag control unit 285581719R is fitted in these vehicles: Renault Mégane III (2008-2016). If your car appears in this list, the unit is intended for your vehicle.

The assignment covers these vehicles:

• Renault Mégane III (2008-2016)

Check the part number on the unit against this page; that way you know it is the correct unit. Have the fault memory read out beforehand, because only that shows whether the control unit is defective or connectors and cables are the cause.

For the same vehicles, we also repair control units with the part numbers 285581365R, 8200962388, 985105478R.

How does the repair of the 285581719R work?

You read out the fault memory first and include the report; then disconnect the battery and only then remove the control unit 285581719R. Afterwards, create a repair order online and send in the securely packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, deletes the stored crash data, renews defective components and carries out a function test.

Your own unit is then 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 285581719R get to Airbag24?

You send the control unit 285581719R off yourself as a parcel, or book a UPS collection for an extra charge. It comes back by UPS once the repair is complete.

The printed repair order and shockproof protection for the unit belong in the parcel.