Airbag control unit with part number 285580008R

What does the airbag control unit 285580008R do?

The airbag control unit 285580008R is the central control unit of the restraint system (SRS) for Renault. It analyses the signals from the crash sensors and, in the event of an accident, decides within milliseconds which airbags and seatbelt pretensioners are triggered. It monitors the system continuously and reports faults via the airbag warning light.

After an accident, the unit stores crash data and locks itself, and only the repair lifts this lock.

While driving, the control unit checks the entire restraint system, which includes the sensors, airbags and seatbelt pretensioners. Any fault detected is shown in the instrument cluster.

Why does the control unit 285580008R fail?

The most common cause for the control unit 285580008R is crash data having been stored after an accident, even if no airbag was triggered. Other causes include aged components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

A normal diagnostic tool cannot erase the crash data; Airbag24 erases it during the repair.

Which cause applies in each case only becomes clear once the unit has been checked. The other causes include the following:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or a jump start

How can you tell that the 285580008R is defective?

A fault in the control unit 285580008R shows up when the airbag warning light in the instrument cluster lights up permanently or intermittently, and as a fault message in the instrument cluster. The diagnostic tool then cannot connect to the control unit, and the fault memory cannot be erased.

In an emergency, the airbags and seatbelt pretensioners may then fail to deploy. If the warning light is on, have the fault checked promptly.

Which vehicles is the 285580008R fitted in?

The airbag control unit 285580008R belongs to Renault. It is fitted in these vehicles: Renault Scénic III (2009-2016); Renault Grand Scénic III (2009-2016).

In detail, it applies to the following vehicles:

• Renault Scénic III (2009-2016)
• Renault Grand Scénic III (2009-2016)

Compare the part number on the label of the removed unit with this page; this simply confirms that you have the correct unit in front of you. Also have the fault memory read out beforehand, as only that shows whether the control unit is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 284100-22023, 285582617R, 285589605R, 285589834R, 285906352R, 44292445.

How does the repair of the 285580008R work?

For the control unit 285580008R, first have the fault memory read out, then disconnect the battery and only then remove the control unit. Next, create a repair order online and send the unit in, well packed. Processing at Airbag24 usually takes 3–4 working days.

Enclose the fault memory log with the unit; the sequence is mandatory for safety reasons.

Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a functional test.

You then receive your own, repaired unit back. 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 285580008R get to Airbag24?

You send the control unit 285580008R in as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Put the printed repair order in the parcel and pack the unit securely against impact.