Airbag control unit with part number 8200411008

What does the airbag control unit 8200411008 do?

The airbag control unit 8200411008 forms the switching centre of the restraint system (SRS) in Renault. In an emergency it evaluates the signals from the crash sensors and decides within a split second which airbags and seatbelt pretensioners are triggered. After an accident it stores crash data and locks itself.

During normal operation the unit continuously checks the wiring, the sensors and the firing circuits. If it detects a fault, it records it in the fault memory and reports it via the airbag warning light.

This reaction is part of how the system works.

Why does the control unit 8200411008 fail?

The most common cause is crash data stored in the control unit 8200411008 after an accident, even if no airbag has fired. Further triggers are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes caused by a weak battery or a jump-start. A normal diagnostic tool cannot erase the crash data.

Crash data document the event from the control unit's point of view. They remain stored even when nothing more can be seen on the vehicle.

The other causes affect components and connections that give way over time. Solder joints can lose contact, moisture attacks plug connections, and ageing changes how the electronics behave.

How can you tell that the 8200411008 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, a fault message appears in the instrument cluster, and a diagnostic tool finds no connection to the control unit 8200411008. A fault memory that cannot be cleared also counts. Airbags and seatbelt pretensioners may then not deploy in an emergency.

The warning light alone is enough to identify the defect. It indicates the defect as soon as the control unit has detected it, and it is one of the most important warning signs on the dashboard.

A fault message in the instrument cluster means that the system is not fully ready for use at this point. For that reason it is advisable to have the cause checked promptly.

Which vehicles is the 8200411008 fitted in?

The control unit 8200411008 is installed in the following vehicles of the make Renault: Renault Mégane II (2002-2009). The list helps you match it against your own car.

The list shows the vehicles that are known to us for this number:

• Renault Mégane II (2002-2009)

Matching the part number on the label with this page only confirms that you have the right unit in front of you. Whether the control unit is really defective, or a plug or cable is causing the fault, is shown only by the fault memory read out beforehand.

For the same vehicles, we also repair control units with the part numbers 8200257044E, 8200337245, 8200337247, 8200412026, 8200412026B, 8200682381.

How does the repair of the 8200411008 work?

First you have the fault memory read out and attach the log to the unit. Then you disconnect the battery and only then remove the control unit 8200411008. Finally, create a repair order online and send the well-packed unit in.

Airbag24 examines the unit on the test bench, repairs defective components, erases stored crash data and carries out a functional test. Processing at Airbag24 usually takes 3–4 working days. Afterwards your own unit 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 8200411008 get to Airbag24?

You send the control unit 8200411008 to Airbag24 as a parcel, or arrange a UPS collection for an extra charge. Airbag24 sends it back to you by UPS after the repair.

Pack the unit shock-proof and put the printed repair order in the parcel.