Airbag control unit with part number 8200246182

What does the airbag control unit 8200246182 do?

The airbag control unit 8200246182 is the central control unit of the restraint system (SRS) in Renault. It evaluates the signals from the crash sensors, decides in an accident within milliseconds about airbags and seatbelt pretensioners, and monitors the system continuously. After an accident, it stores crash data and locks itself.

The decision to trigger is made in a period that nobody consciously perceives. In everyday use the unit works in the background without any action on your part and reports faults via the airbag warning light in the instrument cluster.

Why does the control unit 8200246182 fail?

The most common cause is crash data stored after an accident, even if no airbag was triggered; a normal diagnostic tool cannot erase it. Other causes are ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or a jump start.

Crash data is created in the control unit itself and remains stored there. A diagnostic tool can read it out, but cannot remove it.

The other causes affect the electronics directly. Solder joints become sensitive over time, and moisture reaches the contacts via plug connections, where it causes corrosion.

How can you tell that the 8200246182 is defective?

A defect shows up at the airbag warning light in the instrument cluster, which stays on permanently or intermittently, at fault messages in the instrument cluster, at a lack of connection between the diagnostic tool and the control unit, and at a fault memory that cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The warning light is in direct view and is therefore the first sign you will notice. It shows that something in the system is wrong, even if the vehicle otherwise drives normally.

Have such a finding checked promptly. The cause does not always lie in the control unit itself, because cables and plugs also come into consideration.

Which vehicles is the 8200246182 fitted in?

The control unit 8200246182 is fitted in these vehicles: Renault Mégane II (2002-2009).

The vehicles at a glance:

• Renault Mégane II (2002-2009)

Compare the part number on the label of the removed unit with this page; that way you can be sure you have the right unit in front of you. Also have the fault memory read out before you remove the unit. Only this log shows whether the control unit is defective or whether a plug 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 8200246182 work?

For the 8200246182, first have the fault memory read out and attach the log. Then disconnect the battery and remove the control unit; only then create a repair order online and send in the well-packed unit. Processing at Airbag24 usually takes 3–4 working days.

This order of steps is for your safety during removal, so please keep to it strictly.

At Airbag24, the unit is checked on the test bench, defective components are repaired, the stored crash data is erased and a function test follows. 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 8200246182 get to Airbag24?

Either you send the unit as a parcel yourself, or you book a UPS collection for an extra charge. After the repair, Airbag24 returns the unit to you by UPS.

Include the printed repair order in the parcel and pack the unit shock-proof.