Airbag control unit with part number 285580901R

What does the airbag control unit 285580901R do?

The airbag control unit 285580901R is responsible for the restraint system (SRS) in the Renault. It processes the signals from the crash sensors, determines within milliseconds in an impact which airbags and seatbelt pretensioners are to be triggered, and monitors the condition of the system continuously. After an accident it stores crash data and locks itself.

It indicates faults it has found via the airbag warning light in the instrument cluster. The warning stays with you until the cause has been checked.

Why does the control unit 285580901R fail?

Stored crash data from an accident is the most common reason with the 285580901R, even without a triggered airbag. A normal diagnostic tool cannot delete this data; Airbag24 removes it during the repair. Other possible causes are ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

The entry remains in the memory until it is removed during the repair. The other causes act more over time, for example through ageing of the components or voltage fluctuations during jump-starting. Moisture and corrosion on the contacts are further influences.

How can you tell that the 285580901R is defective?

The airbag warning light on the 285580901R signals a defect by staying on permanently or intermittently. A fault message, a diagnostic tool without contact to the control unit and a fault memory that cannot be cleared may also occur. In that case, airbags and seatbelt pretensioners might not deploy in an emergency.

• Airbag warning light in the instrument cluster lights up permanently.
• Error message in the instrument cluster.
• Diagnostic tool without contact to the control unit.
• Fault memory that cannot be reset.

If several of these signs appear at the same time, a prompt check is particularly important.

Even if no problem is noticeable otherwise, the warning remains a reason for a check.

Which vehicles is the 285580901R fitted in?

The 285580901R is fitted in these vehicles: Renault Mégane III (2008-2016).

The list gives an overview of these vehicles:

• Renault Mégane III (2008-2016)

You carry out the label comparison with this page on the removed unit, which ensures that it is the correct unit. Only the fault memory, read out beforehand, shows whether the control unit itself is defective or whether a connector or cable is the cause.

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

How does the repair of the 285580901R work?

Have the fault memory of the 285580901R read out first and enclose the log; then disconnect the battery and remove the control unit. Next, create the repair order online and send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, repairs defective components, deletes stored crash data and carries out a functional test. Afterwards the check is complete and your own unit is returned.

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 285580901R get to Airbag24?

The control unit 285580901R can be sent to Airbag24 as a parcel, or you can book a UPS collection for an extra charge. After the repair, it is returned by UPS. The printed repair order goes into the parcel, and the unit is packed shock-proof.

Sturdy packaging protects the unit throughout the whole shipping route. When packing, the printed repair order helps, as it clearly assigns the unit.