Citroën C4 Cactus airbag control unit repair⁽¹⁾

What should I pay attention to with Citroën C4 Cactus airbag control units?

The airbag control unit of the Citroën C4 Cactus evaluates the crash sensors, triggers the airbags and seat belt pretensioners, and monitors the entire system. If it detects a fault, it reports it via the airbag warning light. Airbag24 repairs the control unit you send in.

After an accident, the control unit stores crash data and locks itself. At Airbag24, the crash data is deleted as part of the repair.

The airbag system is safety-critical. Removal and any work on the system should be carried out by a qualified specialist workshop.

Which Citroën C4 Cactus generations are there?

The Citroën C4 Cactus was built in two series: the I from 2014 to 2018 and the I Facelift from 2018 to 2020. For the assignment, the series counts together with the year of manufacture and the part number of the unit.

• I (2014–2018) – first series of the model
• I Facelift (2018–2020) – revised series following the model update

The build year of your vehicle usually shows which series it belongs to. The 2018 model update is mainly recognisable by its exterior design. For your unit, however, the part number on the label is decisive, not the model name alone.

How do I identify my Citroën C4 Cactus airbag control unit?

The part number on the label of the control unit determines the exact version. The year of manufacture and the equipment of your vehicle help with the assignment, but they do not replace the part number.

The following part numbers are stored for this model. The list does not claim to be complete:

• 98 101 064 80
• 98 295 355 80

The repair units in our shop come from the supplier Bosch. Typical fault codes include F620, F633 or B0001. A single code alone does not prove a defect in the control unit; the fault memory should be evaluated by a specialist workshop.

What airbag equipment does the Citroën C4 Cactus have?

The Citroën C4 Cactus is equipped with front, side and head airbags. Test reports cite a total of six airbags for the first series; for the I Facelift series, no verified figure is available.

In the first series, front airbags for driver and front passenger as well as side and head airbags are present. Whether the facelift series from 2018 has the same equipment is not verified; please check your vehicle documents or ask the manufacturer.

Have the fault memory read out at a specialist workshop. A professional removes the control unit after the battery has been disconnected. You then create a repair order online and send the unit, well packed, to Airbag24. Processing usually takes 3–4 working days (testing, repair, final check).

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