Airbag control unit with part number 8200337247

What does the airbag control unit 8200337247 do?

The airbag control unit 8200337247 controls the restraint system (SRS) in Renault. It evaluates the crash sensors, determines in an emergency within milliseconds which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. After an accident, it stores crash data and locks itself; the lock is lifted only by the repair.

A fault or malfunction in the system is reported via the airbag warning light in the instrument cluster. This display is the way in which the unit informs the driver.

The evaluation follows fixed specifications so that no time is lost in an emergency.

Why does the control unit 8200337247 fail?

The most common cause is crash data stored after an accident, even without a triggered airbag; a normal diagnostic tool cannot erase it. Aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage peaks are further possible causes.

Crash data records an event in the memory of the control unit. Reading it out with a diagnostic tool displays the data but does not remove it, so the fault message remains even if the vehicle then runs normally again.

Aged electronic components can lose their function over time, and cold solder joints may develop hairline cracks. Moisture promotes corrosion on the plugs. Voltage peaks, for example from a weak battery or a jump start, put additional strain on the electronics.

How can you tell that the 8200337247 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently, and an error message is displayed. If the fault memory remains occupied despite clearing, or the diagnostic tool cannot find the control unit, a defect is likely. Airbags and seatbelt pretensioners may then possibly fail to trigger in an emergency.

The warning light reports the fault to the driver as soon as the control unit detects it; that is exactly its purpose. An error message in the display accompanies the light. If it is pressed away, the fault nevertheless remains.

If the display returns after clearing, this indicates that the cause lies within the system itself.

Which vehicles is the 8200337247 fitted in?

The control unit 8200337247 is fitted in these vehicles: Renault Mégane II (2002-2009).

The list helps you compare with your own vehicle and shows the models for which this part number is stored.

• Renault Mégane II (2002-2009)

Before removing the unit, compare the part number on the label with this page. This only ensures that it is 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, 8200412026B, 8200682381.

How does the repair of the 8200337247 work?

First have the fault memory read out and attach the log. Then disconnect the battery, remove the control unit 8200337247 only afterwards, and create a repair order online. Then send the unit in, well packed. Airbag24 usually needs 3–4 working days.

Airbag24 examines the unit on the test bench, repairs defective components, erases the stored crash data and carries out a function test. Your own unit then goes back 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 8200337247 get to Airbag24?

You send the control unit 8200337247 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 into the parcel and pack the unit shockproof.