Airbag control unit with part number 8200380046

What does the airbag control unit 8200380046 do?

The control unit 8200380046 evaluates the signals from the crash sensors in the airbag system of Renault. In an accident it decides within milliseconds which airbags and seatbelt pretensioners are triggered.

At the same time it monitors the restraint system continuously and reports faults via the airbag warning light in the instrument cluster.

After an accident the unit stores crash data and locks itself.

Why does the control unit 8200380046 fail?

For the 8200380046, stored crash data from an accident is the most common cause, even if no airbag has deployed. Other causes are aged components, cold solder joints, moisture and corrosion at connectors, and voltage spikes.

With a normal diagnostic tool you cannot erase this crash data. At Airbag24 it is erased as part of the repair.

Aged electronic components and cold solder joints count among the technical causes.

Moisture and corrosion at connectors, and voltage spikes from weak batteries or jump starts, can likewise disturb the electronics.

How can you tell that the 8200380046 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently if the 8200380046 has a defect. In addition there is a fault message in the instrument cluster, no connection to the diagnostic tool, and a fault memory that cannot be cleared.

This light is a clear sign, because the control unit itself reports the fault. If the fault memory cannot be read or cleared, the cause remains unclear until the control unit has been checked.

In an emergency, airbags and seatbelt pretensioners may not deploy. Therefore take the warning light seriously.

Which vehicles is the 8200380046 fitted in?

The model decides whether a car of Renault contains this control unit. The 8200380046 is fitted in these vehicles: Renault Mégane II (2002-2009).

This is where you can see which vehicles the part number is recorded for:

• Renault Mégane II (2002-2009)

Check the part number on the label of the removed unit against this page. That confirms that it fits this page. Have the fault memory read out before removal, because only that shows whether the control unit itself or a connector or cable is the cause.

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 8200380046 work?

First read out the fault memory of the 8200380046 and enclose the log. Then disconnect the battery and remove the control unit before you create a repair order online.

Send the well-packed unit afterwards. Airbag24 checks it on the test bench, replaces defective components and erases stored crash data.

A function test follows. Processing at Airbag24 usually takes 3–4 working days, after which 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 8200380046 get to Airbag24?

You send the 8200380046 by parcel or have it collected by UPS for an extra charge. The return after the repair is also made by UPS.

Put the printed repair order into the parcel. Pack the unit shock-resistant.