Airbag control unit with part number 285587590R

What does the airbag control unit 285587590R do?

The airbag control unit 285587590R is the central control unit of the restraint system (SRS) for Renault. It evaluates the signals from the crash sensors and, in the event of an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered. After an accident, it stores crash data and locks itself.

The unit monitors the entire system continuously and reports faults via the airbag warning light in the instrument cluster. This lets you, as the driver, recognise that something is wrong with the restraint system. The safety of the occupants therefore depends largely on this control unit.

Only the repair lifts the lock.

Why does the control unit 285587590R fail?

Stored crash data is the most common cause; with a standard diagnostic tool it cannot be erased from the 285587590R. Other causes are ageing of the electronics, moisture and corrosion, and voltage spikes.

The unit stores crash data even when no airbag has deployed. Airbag24 erases it during the repair.

Aged electronic components, cold solder joints and moisture at plug connections can also be causes. Voltage spikes, for example from a weak battery or jump-starting, put additional strain on the unit.

How can you tell that the 285587590R is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and this shows a fault in the 285587590R. In addition, there are fault messages in the instrument cluster, no connection to the diagnostic tool, and a fault memory that cannot be cleared.

In an emergency, the airbags and seatbelt pretensioners may then fail to deploy, so have the fault checked promptly. The underlying cause cannot be determined from these signs alone. Signs of this kind should not be ignored.

Which vehicles is the 285587590R fitted in?

The 285587590R is fitted in this vehicle: Renault Mégane III (2008-2016). Whether your car is one of them can be checked with the list on this page.

These vehicles are listed for this part number:

• Renault Mégane III (2008-2016)

Comparing the part number on the label of the removed unit with this page ensures that you send in the correct unit. Whether the control unit itself is faulty or a connector or cable is the cause is shown only by the fault memory. Therefore, have it read out beforehand.

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

How does the repair of the 285587590R work?

First have the fault memory read out and enclose the log, then disconnect the battery and only then remove the 285587590R. Next, create a 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, erases stored crash data and carries out a functional test. The functional test checks the unit before it is sent back. Your unit then 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 285587590R get to Airbag24?

You send the 285587590R in as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 brings it back to you by UPS.

Put the printed repair order into the parcel and pack the unit shock-resistant. A well-packed unit arrives more safely. Make sure the parcel is securely sealed.