Airbag control unit with part number 8200230857

What does the airbag control unit 8200230857 do?

The airbag control unit 8200230857 controls the restraint system (SRS) in Renault vehicles. It reads the crash sensors, decides within milliseconds of an impact whether airbags and seatbelt pretensioners are triggered, and monitors the system constantly.

If a fault is detected in the system, it is indicated by the airbag warning light in the instrument cluster.

After an accident, the unit stores crash data and locks itself. Nothing more is said here, because the rest concerns how the unit is handled rather than its function.

Why does the control unit 8200230857 fail?

The most common cause is crash data stored after an accident, even when no airbag has been triggered; a normal diagnostic tool does not erase it. Other possible causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

An accident leaves traces in the control unit, even if it was only minor. The data remains, and the diagnostic tool cannot remove it.

Otherwise, components age, solder joints can go cold, and water or salt attacks the plug connections. Voltage spikes, for example from a weakened battery or a connection with jump-starting, also stress the electronics.

How can you tell that the 8200230857 is defective?

A defect in the 8200230857 becomes visible through the airbag warning light in the instrument cluster, which stays lit permanently or only intermittently. A fault message may also appear, the diagnostic tool may not find the control unit, and the fault memory remains. In an emergency, airbags and seatbelt pretensioners may fail to deploy.

The warning light is the most important signal. It shows the condition of the system continuously, so it cannot be overlooked while it is lit.

If the fault memory cannot be cleared, the problem can lie in the unit or its wiring rather than in operation. Only a specialist examination will clarify this.

Which vehicles is the 8200230857 fitted in?

The control unit 8200230857 is fitted in these vehicles: Renault Clio II (1998-2012). Check your car against the type details in the registration document before you remove the unit.

The vehicles in which the unit was installed are listed here:

• Renault Clio II (1998-2012)

Before removing the unit, two checks are worth making, and they do not replace each other. (a) Comparing the part number on the label with this page only confirms that it is the right unit. (b) Reading out the fault memory beforehand shows whether the control unit itself is defective or whether a plug or cable is causing the fault.

For the same vehicles, we also repair control units with the part numbers 0 285 001 157, 0 285 001 403, 285001155, 7700426752b, 7700428310, 8200 375 763.

How does the repair of the 8200230857 work?

For the 8200230857, first have the fault memory read out and attach the log. Then disconnect the battery, remove the control unit, create the repair order online and send the unit in well packed.

Airbag24 then checks the unit on the test bench, replaces defective components, erases the stored crash data and carries out a function test. Afterwards, the unit comes back to you.

Processing at Airbag24 usually takes 3–4 working days. This period covers only checking, repairing and testing in the house.

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 8200230857 get to Airbag24?

Send the 8200230857 to Airbag24 as a parcel, or book a UPS collection for an extra charge. After the repair, UPS brings the unit back to you.

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