Airbag control unit with part number 8200682378

What does the airbag control unit 8200682378 do?

The airbag control unit 8200682378 coordinates the restraint system (SRS) in Renault. From the signals of the crash sensors it calculates in the event of an accident, within milliseconds, which airbags and seatbelt pretensioners trigger, and it monitors the system continuously. It shows faults via the airbag warning light.

As long as the ignition is on, the unit checks the system continuously for irregularities.

After an accident it records crash data and locks itself. Only the repair lifts the lock again.

Why does the control unit 8200682378 fail?

Stored crash data after an accident is the most common cause on the 8200682378, even when no airbag has deployed. Further causes include aged components, cold solder joints, moisture and corrosion on connectors, and voltage spikes.

A normal diagnostic tool cannot erase this crash data. At Airbag24 it is erased during the repair.

The other causes relate to age, moisture and stress on the electronics. Components wear out, solder joints can make poor contact, and corrosion and moisture attack the connectors. Voltage spikes, for example from a weak battery or when starting with a jump start, additionally strain the electronics.

How can you tell that the 8200682378 is defective?

The airbag warning light in the instrument cluster lights up continuously or intermittently as soon as the 8200682378 detects a fault. An error message in the instrument cluster, no connection to the diagnostic tool and a fault memory that cannot be cleared accompany it.

The airbag warning light makes the defect visible. It is therefore the signal you respond to when it lights up.

With these signs, airbags and seatbelt pretensioners may fail to deploy in an emergency. A prompt check of the system is advisable.

Which vehicles is the 8200682378 fitted in?

Comparing it with your own vehicle shows whether the unit fits. The control unit 8200682378 is fitted in these vehicles: Renault Mégane II (2002-2009).

For this part number we list the vehicles here:

• Renault Mégane II (2002-2009)

First compare the part number on the label of the removed unit with this page. This only confirms that it is the right unit and says nothing about its condition. Also have the fault memory read out before removal. Only this record shows whether the control unit is defective or a connector or 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 8200682378 work?

First have the fault memory of the 8200682378 read out and enclose the log in the parcel. Then disconnect the battery; only after that remove the control unit, and create the repair order online. Send the 8200682378 in well packed.

Airbag24 checks the unit that has been sent in on the test bench and repairs defective components. Stored crash data is erased, and a function test follows. Your own unit then comes back to you.

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 8200682378 get to Airbag24?

You can send the 8200682378 yourself as a parcel, or book a UPS collection for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

The printed repair order belongs in the parcel, and the unit must be packed shock-proof.