Airbag control unit with part number 8200412045

What does the airbag control unit 8200412045 do?

The airbag control unit 8200412045 is the central control unit of the restraint system (SRS) for Renault. In an accident, it decides within milliseconds which airbags and seatbelt pretensioners are triggered, and it monitors the system continuously. It reports faults via the airbag warning light.

After an accident, the unit stores crash data and locks itself; only the repair lifts the lock.

The monitoring runs permanently, even if you notice nothing of it while driving.

Why does the control unit 8200412045 fail?

Stored crash data is the most common cause, even if no airbag has deployed. Ageing components, cold solder joints, moisture and voltage spikes are also possible.

A standard diagnostic tool cannot erase this data. Airbag24 removes it during the repair.

Ageing electronic components, cold solder joints, and moisture and corrosion at plug connections are among the other causes.

Voltage spikes occur, for example, from a weak battery or a jump start. If moisture stays on a plug for a long time, the contact can suffer.

How can you tell that the 8200412045 is defective?

The airbag warning light in the instrument cluster stays on permanently or lights up intermittently. An error message, a diagnostic tool that cannot connect, and a fault memory that cannot be cleared are further signs. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The light is a direct indication from the control unit. So have the fault checked as soon as the light appears.

Which vehicles is the 8200412045 fitted in?

The airbag control unit 8200412045 is fitted in these vehicles: Renault Scénic II (2003-2009); Renault Grand Scénic II (2003-2009).

The following vehicles are listed for this part number:

• Renault Scénic II (2003-2009)
• Renault Grand Scénic II (2003-2009)

Compare the part number on the label of the removed unit with this page. Also have the fault memory read out beforehand, because 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 285583229R, 603989700, 607993600, 8200340431, 8200411013, 8200412042A.

How does the repair of the 8200412045 work?

The repair of the 8200412045 begins with reading out the fault memory and enclosing its log. Then disconnect the battery, remove the control unit, create a repair order online and send the unit in well packed. At Airbag24, testing, repair and function test usually take 3–4 working days.

Airbag24 checks the unit on the test bench and replaces defective components. The stored crash data is erased, and a function test completes the work.

After that, the unit 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 8200412045 get to Airbag24?

The control unit 8200412045 reaches Airbag24 either as a parcel from you or via a UPS collection that you book for an extra charge. After the repair, UPS brings it back to you.

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