Airbag control unit with part number 8200481127

What does the airbag control unit 8200481127 do?

The airbag control unit 8200481127 is the central control unit of the restraint system (SRS) of Renault. It evaluates the signals from the crash sensors, decides in the event of an accident whether to trigger airbags and seatbelt pretensioners, and reports faults via the airbag warning light.

The system is monitored continuously so that all components are ready in an emergency. After an accident, the unit stores crash data and locks itself.

Why does the control unit 8200481127 fail?

With the 8200481127, the most common cause lies in crash data stored after an accident, even if no airbag has deployed; a normal diagnostic tool cannot erase them. Aged components, moisture and voltage spikes also play a role.

Further causes that may be considered in a failure are:

• aged electronic components
• cold solder joints on the circuit board
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or jump-starting

How can you tell that the 8200481127 is defective?

A defect in the 8200481127 is shown by the airbag warning light in the instrument cluster lighting up constantly or intermittently, and by error messages in the instrument cluster.

In addition, the diagnostic tool cannot establish a connection to the control unit, and the fault memory cannot be cleared. In such a case, the airbags and seatbelt pretensioners may not trigger in an emergency. Have the signs checked promptly.

Which vehicles is the 8200481127 fitted in?

The airbag control unit 8200481127 is fitted in these vehicles: Renault Mégane II (2002-2009).

The assignment looks like this in detail:

• Renault Mégane II (2002-2009)

Comparing the part number on the label of the removed unit with this page only ensures that it is the right unit. Have the fault memory read out beforehand, because only that shows whether the control unit is defective or a plug or a 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 8200481127 work?

For the 8200481127, first have the fault memory read out and attach the log. Then disconnect the battery and only then remove the unit. Processing at Airbag24 usually takes 3–4 working days.

Then create a repair order online and send in the unit. Airbag24 checks it on the test bench, replaces defective components, erases stored crash data and carries out a function test. Afterwards your own unit is returned 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 8200481127 get to Airbag24?

You send the 8200481127 as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns the unit by UPS.

Put the printed repair order into the parcel and pack the unit shock-proof.