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Citroën C3 III airbag control unit repair
9829442880 · Label
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Citroën C3 III airbag control unit repair at Airbag24
Airbag24 repairs defective airbag control units professionally and affordably. Both private customers and workshops can order without registration and benefit from fast processing, 2 years' statutory liability for defects and plug&play installation.
Airbag24 works with state-of-the-art diagnostic technology and specialised repair processes. Because defective control units often involve only individual components, a professional overhaul can be considerably cheaper than buying new.
Our advantages: no registration required, a direct online ordering process for B2B and B2C customers, express shipping and comprehensive quality testing. The repaired control unit works like a new part.
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Our estimated repair time for this product is about: 3–4 business days
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Specifications
- Make
- Citroën
- Model
- Citroën C3
- Series
- III (2017-2020)III Facelift (2020-2024)

Shipping & repair from Germany
Airbag24 repairs your component in Berlin — usually within 3–4 working days.
Standard shipping within Germany is free; we normally return your part by UPS.
You pay for and insure the inbound shipment to us. On explicit request we ship by express — the extra cost is borne by the customer.
If you withdraw from the contract, you bear the cost of returning the item.
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4.8What is a Citroën C3 III airbag control unit?
The Citroën C3 III airbag control unit is the central safety unit that instantly activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It monitors vehicle sensors, stores relevant crash data, and ensures the proper functioning of passive safety. A Citroën C3 III airbag control unit repair is often a cost-effective alternative.
This essential module is responsible for controlling the life-saving airbag systems in your Citroën C3 III. It receives signals from numerous sensors in the vehicle that detect a collision or impact.
In the event of an accident, the control unit precisely triggers the appropriate airbags and seatbelt pretensioners to provide optimal occupant protection. It is a key function for overall vehicle safety.
Why is the Citroën C3 III airbag control unit defective?
A Citroën C3 III airbag control unit is often defective because irreversible crash data is stored after an accident, preventing reinitialization. In this case, the airbag warning light remains permanently illuminated. Because internal electronic defects such as short circuits or overvoltage can also lead to failure, a professional Citroën C3 III airbag control unit repair is often the only solution to restore vehicle safety.
After a collision, the control unit stores so-called crash data, which makes reuse of the device impossible without a special reset procedure.
Even without an accident, the control unit can fail, for example, due to aging components, moisture ingress, or electrical problems such as short circuits or overvoltage in the vehicle's electrical system. These internal errors lead to system failure.
A defective control unit prevents the airbags and seatbelt pretensioners from functioning properly and must therefore be repaired or replaced. A diagnostic check at a workshop is the first step.
Common error codes for Citroën C3 III airbag control unit repair
For Citroën C3 III airbag control unit repairs, specific error codes are primarily relevant, as they directly indicate problems with the control unit. These indicate communication errors, internal malfunctions, or ignition circuit interruptions and require precise diagnosis to identify the cause of the failure.
Diagnosis of a defective airbag control unit is performed via the OBD2 interface using specialized software. Here are the most common, purely control unit-specific error codes:
- B1000 → Control unit communication error → The airbag ECU does not respond to diagnostic signals or is internally faulty.
- U2601 → Driver level 1 airbag ignition circuit interruption (Igniter Open Circuit) → A fault in the ignition circuit of the driver airbag managed by the control unit.
Especially after an accident, the control unit's error log is filled with crash data, which is also displayed as error codes and blocks the system. These must be professionally erased.
Error codes from external components such as sensors or belt tensioners are excluded here, as they do not directly indicate a defect in the control unit itself.
What part numbers are available for the Citroën C3 III airbag control unit repair?
The Citroën C3 III airbag control unit repair takes into account various OEM part numbers, which vary depending on the model year and equipment. These numbers, from Citroën or suppliers such as Temic/Bosch, are crucial for correct compatibility and ensure that the repaired control unit fits exactly the specific Citroën C3 III.
For the modern Citroën C3 III (model from approx. 2016/2019), suitable for engine variants such as 1.2 VTi and 1.2 PTEC, the following original part numbers are primarily relevant:
- 9829442880 (Citroën original OEM)
- 1663836480 (Citroën (GPA) original OEM)
Other common OEM numbers that are also relevant for older Citroën C3 models (e.g. model years 2004, 2005) and can also be repaired include:
- 9656888580 (Citroën original OEM)
- 9651927380 (Citroën original OEM)
- 9658316580 (Citroën original OEM)
- 00006545P3 (Citroën original OEM)
Part numbers from suppliers such as Temic or Bosch, which were installed as OEM parts and are relevant for the Citroën C3 III airbag control unit repair, are also:
- 96 772 534 80 (Temic/Bosch original OEM)
- 96 490 035 80 (Temic/Bosch original OEM)
All part numbers listed correspond to airbag control units (ECUs) and are essential for correct identification during repair or replacement. A thorough check with the vehicle identification number (VIN) is always recommended to ensure a perfect fit.
Based on 246 reviews
What our customers say
„Ok.“
„Works like a charm!“
„Everything went perfectly, I can only recommend it.“
Automatically translated · Original: German
„From the first phone call, the order processing, to the shipping everything was done very quickly and professionally. Now I still have to send the repaired unit to the Swedish workshop and then hopefully the Honda can fi…“
Automatically translated · Original: German
„Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!“
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„Everything worked out great! Read out fault memory, sent it in, received offer and sent in the defective control unit. Got it back repaired after 3 days, price exactly as in the offer. It can't get any better 👍“
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„Uncomplicated service. Fast and thorough. Can only recommend.“
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„All great👍“
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„All great, fast delivery. Thanks.“
Automatically translated · Original: German
„100% satisfied. Everything handled very professionally and transparently. Only the return shipping took too long. This was however due to UPS and less to Aairbag24. Thank you very much“
Automatically translated · Original: German
„VAG airbag control unit with error B2000 00 reliably repaired. Price very high in comparison, but everything worked out. No exact protocol of what was carried out, probably just newly flashed“
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„A great shop, even when there are sometimes problems. There are quick responses and very good help. I can only recommend the shop. Thank you very much“
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„Ok.“




