Airbag control unit with part number 8200307806

What does the airbag control unit 8200307806 do?

The airbag control unit 8200307806 controls the restraint system (SRS) for Renault. It evaluates the crash sensors, determines within milliseconds in an accident which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. Faults are shown via the airbag warning light, and after an accident it stores crash data and locks itself.

Monitoring extends to sensors, seatbelt pretensioners, airbags and the wiring. The unit records every irregularity in the fault memory.

Why does the control unit 8200307806 fail?

Crash data from an earlier accident is the most common cause, even if no airbag fired. A normal diagnostic tool cannot erase it. Other causes are aged electronic components, cold solder joints, moisture and corrosion, and voltage spikes.

The crash data remains in the unit until Airbag24 erases it during the repair.

Aged components, cold solder joints and corrosion at plug connections affect the electronics directly. Voltage spikes arise, for example, from a weak battery or jump-starting.

How can you tell that the 8200307806 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently, and a fault message appears in the instrument cluster. The diagnostic tool cannot reach the control unit, and the fault memory cannot be cleared. In an emergency, the airbags and seatbelt pretensioners may therefore fail to deploy.

Signs at a glance:

• Airbag warning light on permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool cannot reach the control unit
• Fault memory cannot be cleared

If the light indicates the fault, have the system checked promptly.

Which vehicles is the 8200307806 fitted in?

For Renault, the control unit 8200307806 can be assigned to specific models. It is fitted in these vehicles: Renault Mégane II (2002-2009).

The vehicles in detail:

• Renault Mégane II (2002-2009)

Comparing the part number on the label of the removed unit with this page only confirms that it is the right unit. Whether the control unit is defective, or whether a plug or cable is the cause, 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 8200307806 work?

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

Airbag24 tests the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test. Your own unit is then returned. Processing at Airbag24 usually takes 3–4 working days.

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 8200307806 get to Airbag24?

You can send the unit in as a parcel or book a UPS collection for an extra charge. After the repair, UPS brings the control unit from Airbag24 back to you.

Make sure the packaging is shockproof, and put the printed repair order in the parcel.