Airbag control unit with part number 8200101440

What does the airbag control unit 8200101440 do?

The airbag control unit 8200101440 coordinates the restraint system (SRS) for Renault. It processes the signals from the crash sensors and triggers the appropriate airbags and seatbelt pretensioners within milliseconds in an accident.

In addition, it monitors the system during ongoing operation and shows faults via the airbag warning light.

After an accident it stores crash data and locks itself.

Why does the control unit 8200101440 fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed. A normal diagnostic tool cannot erase it. Other possible causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data is created as soon as the control unit registers an accident and remains stored afterwards.

The other causes act over time. Electronic components age, moisture penetrates plug connections, and corrosion and cold solder joints disrupt the contact.

Voltage spikes arise, for example, from a weak battery or when a jump start is connected, and put additional strain on the electronics.

How can you tell that the 8200101440 is defective?

The airbag warning light lights up permanently or intermittently, a fault message appears in the instrument cluster, or the diagnostic tool cannot find the control unit. A fault memory that cannot be cleared also belongs to these signs. In that case airbags and seatbelt pretensioners may not deploy in an emergency.

Start with the warning light in the instrument cluster. If it lights up permanently or intermittently, a fault has been detected that you should have clarified.

A fault message or a missing connection to the control unit is also a clear sign that something in the system is not right.

Which vehicles is the 8200101440 fitted in?

The 8200101440 is fitted in these vehicles: Renault Mégane I (1995-2003).

The vehicles assigned to this part number are listed here:

• Renault Mégane I (1995-2003)

First compare the part number on the label of the removed unit with this page. That only confirms that you have the right unit in front of you. Then have the fault memory read out. Only this result shows whether the control unit is defective or whether a plug or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 600639500, 7700430059, 7700437477B, 8200117651, 8200117651A, 8200117652.

How does the repair of the 8200101440 work?

Have the fault memory read out and attach the log. Then disconnect the battery, only afterwards remove the control unit, and create a repair order online. Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test.

The order of the first steps is mandatory for safety reasons.

Pack the unit well after removal and send it in.

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 8200101440 get to Airbag24?

You send the unit in as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 sends it back to you by UPS.

Put the printed repair order in the parcel and pack the unit shockproof.