Airbag control unit with part number 8200277318

What does the airbag control unit 8200277318 do?

The airbag control unit 8200277318 forms the centre of the SRS restraint system of Renault in the vehicle. It evaluates the crash sensors, decides on the deployment of airbags and seatbelt pretensioners in an impact, and continuously checks whether the system is ready for operation.

If the unit detects a fault, it shows this via the airbag warning light in the instrument cluster. After an accident, it stores crash data and locks itself.

The evaluation must be correct within fractions of a second in an emergency, which is why this unit is so important for occupant safety.

Why does the control unit 8200277318 fail?

For the 8200277318, the most common cause is a memory entry: crash data stored after an accident, even if no airbag has deployed. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Crash data cannot be erased with a normal diagnostic tool. Airbag24 erases it during the repair, so you do not need to take care of it yourself.

Electronic components can age over time. Moisture and corrosion affect the contact at plug connections, and a weak battery or a jump start can cause voltage spikes.

How can you tell that the 8200277318 is defective?

You can recognise a defect on the 8200277318 by the airbag warning light, which stays on permanently or intermittently, and by an error message in the instrument cluster. A diagnostic tool without a connection, or a fault memory that cannot be cleared, also indicates a problem.

The signs at a glance:

• Airbag warning light on permanently or intermittently
• Error message in the instrument cluster
• Diagnostic tool has no connection to the control unit
• Fault memory cannot be cleared

In such a case, the airbags and seatbelt pretensioners may not deploy in an emergency. Therefore have the cause checked promptly.

Which vehicles is the 8200277318 fitted in?

The 8200277318 is fitted in these vehicles: Renault Clio II (1998-2012).

The vehicles in detail:

• Renault Clio II (1998-2012)

Compare the part number on your unit's label with this page; this only confirms that it is the correct unit. Have the fault memory read out beforehand, because only the result shows whether the control unit itself is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 0 285 001 157, 0 285 001 403, 285001155, 7700426752b, 7700428310, 8200 375 763.

How does the repair of the 8200277318 work?

For the 8200277318, first have the fault memory read out and attach the log. Then disconnect the battery, and only then is the control unit removed. You then create a repair order online and send the unit in well packed; processing at Airbag24 usually takes 3–4 working days.

Airbag24 examines the unit on the test bench, replaces defective components, erases stored crash data and tests the function. Finally, you receive your own unit back.

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 8200277318 get to Airbag24?

You send the control unit 8200277318 in as a parcel or book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Put the printed repair order into the parcel and pack the unit securely against impact.