Airbag control unit with part number 8200411005

What does the airbag control unit 8200411005 do?

The control unit 8200411005 is the airbag control unit of the restraint system in Renault. It checks the signals from the crash sensors continuously and decides in a crash which airbags and seatbelt pretensioners are triggered. It makes that decision within milliseconds.

The unit reports faults of the system via the airbag warning light in the instrument cluster, in such a way that the driver sees it.

After an accident, it stores crash data and locks itself.

Why does the control unit 8200411005 fail?

The most common cause is crash data stored from an accident, even if no airbag has fired, because a standard diagnostic tool does not erase it. Other causes include aged electronic components, cold solder joints, moisture at plug connections and voltage spikes from a weak battery or a jump start.

Crash data stays in the memory until it is deliberately removed. The fault can therefore appear even if the accident was a long time ago.

Older components, cold solder joints and penetrating moisture cause intermittent contact faults. A voltage spike, for example from a weak battery or a jump start, places additional strain on the electronics.

How can you tell that the 8200411005 is defective?

The first indication is the airbag warning light in the instrument cluster, which lights up permanently or intermittently. In addition there may be an error message in the instrument cluster, no connection between diagnostic tool and control unit, and a fault memory that cannot be cleared.

In an emergency, airbags and seatbelt pretensioners may therefore fail to deploy. The warning light indicates the defect as soon as it occurs, and that justifies a prompt check.

Which vehicles is the 8200411005 fitted in?

The 8200411005 is fitted in these vehicles: Renault Mégane II (2002-2009).

The vehicles in which this control unit is fitted according to our information are listed below.

• Renault Mégane II (2002-2009)

Compare the part number on the label of the removed unit with this page to make sure it is the correct unit. The fault memory tells you more beforehand: it shows whether the control unit is defective or whether a plug or cable is responsible for the fault.

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 8200411005 work?

First have the fault memory read out and enclose the log. Then disconnect the battery and remove the control unit afterwards. Next, create a repair order online, then send the well-packed unit. Airbag24 usually requires 3–4 working days for checking, repair and testing.

This sequence serves safety and applies without exception.

Airbag24 checks the unit on the test bench and replaces defective components. Stored crash data is erased during the repair, then the function test follows, and your own unit is sent 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 8200411005 get to Airbag24?

You can send the unit as a parcel or book a UPS collection for an extra charge. The return of the repaired unit is likewise made by UPS.

The printed repair order belongs in the parcel, and the control unit is packed shockproof.