Airbag control unit with part number 9803832180

What does the airbag control unit 9803832180 do?

The airbag control unit 9803832180 is the central control unit of the restraint system (SRS) for Citroën. It evaluates the signals from the crash sensors, decides within milliseconds in an accident whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously.

Faults are reported via the airbag warning light in the instrument cluster. After an accident the unit stores crash data and locks itself.

Why does the control unit 9803832180 fail?

The most common cause is stored crash data after an accident, even if no airbag has deployed. Other causes are ageing electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

Ageing electronic components lose reliability over time. Cold solder joints can interrupt contacts and so cause faults.

Moisture and corrosion at plug connectors lead to transition resistance. Voltage spikes, for example from a weak battery or jump-starting, place additional strain on the electronics.

How can you tell that the 9803832180 is defective?

A defect shows itself through the airbag warning light in the instrument cluster staying on permanently or intermittently, through an error message, or through the diagnostic tool being unable to connect. A fault memory that cannot be cleared also indicates a defect. The airbags and seatbelt pretensioners may then fail to deploy in an emergency.

Typical signs at a glance:

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

The warning light indicates the fault. Prompt inspection is therefore advisable.

Which vehicles is the 9803832180 fitted in?

Our allocation to Citroën lists this control unit. The control unit 9803832180 is fitted in these vehicles: Citroën C3 II Facelift (2013-2017) and II (2009-2013); Citroën DS3 I (2010-2016) and I Facelift (2016-2019).

The vehicles from our allocation:

• Citroën C3 II Facelift (2013-2017)
• Citroën C3 II (2009-2013)
• Citroën DS3 I (2010-2016)
• Citroën DS3 I Facelift (2016-2019)

Compare the part number on the label of the removed unit with this page. That only shows whether you have the right unit. 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 00006546T7, 618300400, 626181500, 9656888580, 9673657880, 98 038 323 80.

How does the repair of the 9803832180 work?

First have the fault memory read out and attach the log, then disconnect the battery and only then remove the control unit. Then create a repair order online and send the well-packed unit in. Airbag24 needs 3–4 working days for inspection, repair and function test.

Make sure the battery is disconnected before removal. Only then pack the unit.

Airbag24 checks the unit on the test bench, repairs defective components and carries out a function test. The repair of a defect therefore remains possible.

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 9803832180 get to Airbag24?

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

Place the printed repair order in the parcel and pack the unit shock-resistant.