DS Automobiles DS 3 airbag control unit repair⁽¹⁾

What should be noted about DS Automobiles DS 3 airbag control units?

The airbag control unit of the DS Automobiles DS 3 evaluates the crash sensors, triggers the airbags and seat belt pretensioners, and monitors the entire restraint system. If the system detects a fault, the airbag warning light comes on. Airbag24 repairs your own control unit that you send in.

The control unit is the central unit of the restraint system. It recognises an accident from the signals of the sensors and decides which airbags and seat belt pretensioners are triggered. It also records faults in the circuits of the airbags, the pretensioners and the sensors and shows them via the airbag warning light.

After an accident, the control unit stores crash data and locks itself. A defective control unit is therefore safety-relevant. The airbag warning light should not be ignored. Work on the airbag system belongs in the hands of a specialist workshop. The repair at Airbag24 takes place in our workshop in Berlin.

Which DS Automobiles DS 3 generations are there?

In our repair data, the DS Automobiles DS 3 is recorded as one series: the I Crossback, built from 2019 to 2022. This series helps to assign the control unit to the vehicle.

The model range is known as the I Crossback and was offered during this production period. Within a series, control units can have different versions depending on equipment and market.

For this reason, the model name alone is not enough. Also check the year of manufacture and the part number on the unit before you commission a repair.

• I Crossback (2019–2022) – the series recorded for this model in our repair data

How do I identify my DS Automobiles DS 3 airbag control unit?

The part number on the label of the control unit determines the exact version. Also check the year of manufacture and the equipment of your vehicle before you send in a unit.

Note the part number before removal and keep the vehicle identification number (VIN) ready. Both help to assign the unit correctly and to check whether it matches your vehicle. An incorrect assignment can lead to malfunctions of the airbag system.

Fault codes from the fault memory help to classify a warning. The following examples are known for this model:

• B0091 – fault in the left satellite line (side impact sensor), interruption or internal sensor fault
• B00D5 – fault in the indicator lamp for front passenger airbag deactivation

A single fault code does not prove a defect in the control unit, however. The cause is only clarified by an examination at a specialist workshop.

Which airbag equipment does the DS Automobiles DS 3 have?

The DS Automobiles DS 3 has front, side and curtain airbags. Test reports on the model series from 2019 to 2022 state six airbags in total. Whether individual modules differ by market or trim level should be checked on the vehicle.

The front airbags protect driver and front passenger in a frontal impact. The side airbags and curtain airbags add protection in a side impact, and the curtain airbags cover the head area along the side windows. Whether a knee airbag is fitted depends on the equipment and can be checked on the vehicle or in the data sheet for the respective trim.

The control unit coordinates the deployment of all these modules. Its function is therefore central to the entire restraint system.

The route to repair usually works as follows: the specialist workshop reads out the fault memory, disconnects the battery before removal and removes the control unit. You then create a repair order online and send the unit, well packed, to Airbag24. Processing usually takes 3–4 working days and covers testing, repairing and checking.

The repaired control unit returns with all vehicle data and is ready for use immediately after reinstallation — no coding or programming is necessary.