Airbag control unit with part number 8200117651

What does the airbag control unit 8200117651 do?

The airbag control unit 8200117651 is the central control unit of the restraint system (SRS) of Renault. It reads the crash sensors, determines in an accident within milliseconds the firing of airbags and seatbelt pretensioners, and keeps the system under constant control.

If the unit detects a fault, it switches on the airbag warning light in the instrument cluster. As a result, the driver can see that something is wrong in the restraint system.

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

Why does the control unit 8200117651 fail?

The most common cause is stored crash data from an accident, even if no airbag was triggered. An ordinary diagnostic tool cannot erase it. Aged components, cold solder joints, moisture and corrosion at plug connections, and voltage peaks can also cause the failure.

The crash data remains in the unit, and its removal therefore belongs to the repair at Airbag24 and cannot be done on the side.

A weak battery or a jump-start can cause voltage peaks that stress the electronics. Cold solder joints on the circuit board and corroded plug connections also disturb operation, without the fault being traceable to a single point straight away.

How can you tell that the 8200117651 is defective?

The airbag warning light lights up permanently or intermittently, and a fault message appears in the instrument cluster. In addition, the diagnostic tool makes no connection to the control unit, and the fault memory cannot be cleared.

With such a defect, airbags and seatbelt pretensioners may fail to deploy in an emergency. A lit warning light is therefore a reason to have the system checked promptly.

Which vehicles is the 8200117651 fitted in?

The part number on the unit remains decisive. The control unit 8200117651 is fitted in these vehicles: Renault Mégane I (1995-2003).

The vehicles for which this control unit is intended follow here.

• Renault Mégane I (1995-2003)

Compare the part number on the label of the removed unit with this page to make sure you have the correct unit. Also have the fault memory read out before removal. Only this log shows whether the control unit itself is the cause or whether a plug or cable is.

For the same vehicles, we also repair control units with the part numbers 7700430059, 7700437477B, 82000117653, 8200117651A.

How does the repair of the 8200117651 work?

First have the fault memory read out and attach the log; then disconnect the battery and remove the control unit 8200117651. Next, create a repair order online and send the unit in well packed. Airbag24 tests it and repairs it, and checks the function.

On the test bench, Airbag24 renews defective components and erases the stored crash data. The processing usually takes 3–4 working days, after which your own unit goes back to the sender.

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 8200117651 get to Airbag24?

You send the control unit 8200117651 as a parcel or book a UPS collection for an extra charge. Airbag24 sends the repaired unit back to you by UPS.

Put the printed repair order into the parcel and pack the unit so that it is shock-proof.