Airbag control unit with part number 285587908R

What does the airbag control unit 285587908R do?

The airbag control unit 285587908R is the central control unit of the restraint system (SRS) for Renault. It evaluates the signals from the crash sensors and decides within a fraction of a second in the event of an accident which airbags and seatbelt pretensioners are triggered. It reports faults via the airbag warning light, and after an accident it stores crash data and locks itself.

The control unit monitors the system continuously, not only at the moment of an accident. The monitoring runs in the background until a fault occurs. This is not a one-off test but monitoring throughout the entire operation.

Why does the control unit 285587908R fail?

Most often the cause is crash data stored after an accident, even if no airbag has been triggered. Other causes can be aged components, cold solder joints, moisture, corrosion and voltage spikes. A normal diagnostic tool cannot delete the crash data. Airbag24 deletes it during the repair.

The other causes concern the electronics and the connections. Aged electronic components, cold solder joints, and moisture and corrosion at plug connections are among them, as are voltage spikes, for example from a weak battery or a jump start. Only the fault memory shows which cause applies.

How can you tell that the 285587908R is defective?

A defect shows up through the airbag warning light in the instrument cluster, which lights up continuously or intermittently. In addition, fault messages appear in the instrument cluster, a diagnostic tool finds no connection to the control unit, and a fault memory cannot be deleted.

In an emergency, the airbags and seatbelt pretensioners may then not trigger. An intermittent fault is just as important as one that is shown constantly. Take the warning seriously and have the system checked.

Which vehicles is the 285587908R fitted in?

The control unit 285587908R is fitted in these vehicles: Renault Mégane III (2008-2016). To check whether your unit fits, compare the part number on the label.

The list of vehicles follows here:

• Renault Mégane III (2008-2016)

Compare the part number on the label of the removed unit with this page. This only ensures that it is the correct unit. Also have the fault memory read out before removing anything, as only that shows whether the control unit is defective or whether a plug or a 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 285587908R work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only then remove the control unit. Next, create a repair order online and pack the unit well for sending.

Airbag24 checks the unit on the test bench, repairs defective components, deletes stored crash data and carries out a function test. Your own unit is then returned to you. Processing at Airbag24 usually takes 3–4 working days.

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 285587908R 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 by UPS.

Put the printed repair order into the parcel and pack the unit shockproof, so that it survives transport undamaged.