Airbag control unit with part number 8200412032

What does the airbag control unit 8200412032 do?

The airbag control unit 8200412032 controls the restraint system (SRS) of Renault. It evaluates the signals from the crash sensors, determines in an accident within milliseconds which airbags and seatbelt pretensioners are triggered, and reports faults via the airbag warning light.

Monitoring runs permanently while the vehicle is in operation. Detected faults are stored by the unit in the fault memory, which can be read out later with a diagnostic tool.

After an accident the unit stores crash data and locks itself. This also applies to accidents in which no airbag was deployed.

Why does the control unit 8200412032 fail?

The most common cause is stored crash data after an accident, even if no airbag deployed. Further causes are aged electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

• Aged electronic components
• Cold solder joints
• Moisture and corrosion at plug connections
• Voltage spikes, for example from a weak battery or a jump start

Crash data cannot be erased with a standard diagnostic tool. If you notice faults after an accident, look at this stored data first.

How can you tell that the 8200412032 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently, a fault message appears in the instrument cluster, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

When the airbag warning light is on, it indicates a defect that does not resolve itself. Clarifying the cause promptly is therefore important.

Which vehicles is the 8200412032 fitted in?

The 8200412032 is fitted in these vehicles: Renault Mégane II (2002-2009). The list serves as an initial guide before you remove a unit.

The following vehicles are on record for this part number:

• Renault Mégane II (2002-2009)

Compare the part number on the label of the removed unit with this page. This only ensures that you have the right unit. Also have the fault memory read out, because only this result shows whether the control unit is defective or a plug 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 8200412032 work?

First have the fault memory read out and enclose the log, then disconnect the battery and only then remove the control unit. Next create a repair order online and send the unit in well packed.

At Airbag24 the unit is examined on the test bench, defective components are replaced, stored crash data is erased and a functional test is run. Afterwards your own unit is returned.

Processing at Airbag24 usually takes 3–4 working days, and this time applies only to checking, repairing and testing at Airbag24.

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 8200412032 get to Airbag24?

You send the unit as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 returns it by UPS.

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