Airbag control unit with part number 285581230R

What does the airbag control unit 285581230R do?

The airbag control unit 285581230R keeps watch over the restraint system in Renault: it evaluates the crash sensors, triggers the suitable airbags and seatbelt pretensioners in an accident, and checks the system continuously. It reports faults via the airbag warning light. After an accident, it stores crash data and locks itself.

The ongoing check also detects small changes in the sensor signal.

Detected faults go into the fault memory and are available there for a diagnosis.

Why does the control unit 285581230R fail?

Causes of the 285581230R: stored crash data from an accident is the most common cause, even if no airbag has been triggered. Aged components, moisture at plug connectors and voltage spikes can also trigger the failure.

Crash data stays in the unit until it is removed during the repair. As long as it remains there, the control unit reports faults, even though the electronics themselves may be in order.

Cold solder joints, corrosion in the plugs and voltage fluctuations also count among the triggers. A weak battery or a jump start can cause such spikes. Which cause is present only becomes clear from the examination.

How can you tell that the 285581230R is defective?

Signs on the 285581230R: the airbag warning light on the instrument cluster lights up permanently or intermittently. A fault message may also appear on the instrument cluster. In that case, airbags and seatbelt pretensioners may possibly not deploy in an emergency.

These signs point to a defect:

• Warning light on the instrument cluster on permanently or intermittently
• Fault message that appears on the instrument cluster
• Diagnostic tool does not find the control unit
• Clearing the fault memory does not work

If any of these signs appears, have the system checked promptly.

Which vehicles is the 285581230R fitted in?

The 285581230R is fitted in these vehicles: Renault Mégane III (2008-2016). The list below shows the allocation.

The following overview shows the vehicles in which this part number has been fitted.

• Renault Mégane III (2008-2016)

Compare the part number on the label of the removed unit with this page. That only tells you that it is the right unit. Whether the control unit itself is defective is shown only by the fault memory read out.

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

How does the repair of the 285581230R work?

Repair sequence for the 285581230R: have the fault memory read out and the log attached, then disconnect the battery and remove the control unit. Create the repair order online and send in the carefully packed unit; processing at Airbag24 usually takes 3–4 working days.

At Airbag24, the unit is examined on the test bench, defective components are replaced, stored crash data is erased and a function check is carried out. You then receive your unit back.

Do not change the order of the steps when refitting. 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 285581230R get to Airbag24?

Shipping of the 285581230R: you can either send it as a parcel or book a UPS collection for an extra charge. The return after the repair is made by UPS.

Put the printed repair order into the parcel and pack the unit shock-proof.