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Citroën C4X III airbag control unit repair
Citroën C4X 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.
Notes
Mounting position
Repair type
Which repair matches your fault code?incl. VAT plus shipping
Not sure? Just send us an enquiry or give us a call — we're happy to advise you.
4.8Google reviews of our shop(246)
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Matching part numbers
Your part number isn't listed? The list isn't complete – we can usually repair it anyway. Simply create a repair order, or ask us first.
Repair time
Our estimated repair time for this product is about: 3–4 business days
Which repair matches your fault code?
Below your code you can see what needs to be done.
Your error code isn't listed? The list isn't complete – we can usually repair it anyway. Simply create a repair order, or ask us first.
Specifications
- Make
- Citroën
- Model
- Citroën C4X
- Series
- III (2022-2024)III Facelift (2024-XXXX)
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.
Google reviews
4.8Based on 246 reviewsView all reviews →
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 finally pass the HU there again (failed because of the red light for the airbag). Today the message came from SWE, the car is running again, the red light is off and the HU was also passed. Once again many thanks for the help in need. Keep it up and maybe word will also spread in SWE that Airbag 24 does great work. Regards Gerd
Automatically translated · Original: German
Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!
Automatically translated · Original: German
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 👍
Automatically translated · Original: German
What is a Citroën C4 III / C4X airbag control unit?
The Citroën C4 III / C4X airbag control unit is the central safety unit in your vehicle, precisely controlling and activating all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of a collision. It continuously monitors sensors, stores relevant crash data, and ensures the proper functioning of the entire safety system for maximum occupant protection.
This electronic module receives signals from impact sensors and processes them in real time, ensuring that the airbags are deployed at exactly the right moment and with optimal intensity.
Why is the Citroën C4 III / C4X airbag control unit defective?
A Citroën C4 III / C4X airbag control unit often fails because it permanently stores crash data after an accident, which inhibits its functionality and activates the airbag warning light. Moisture, overvoltage, or internal component failures can also cause failure, requiring immediate repair.
If your Citroën C4 III / C4X has been in an accident, "crash data" is stored. This prevents further use of the device until a professional Citroën C4 III / C4X airbag control unit repair is performed. A defective control unit can also occur due to aging components or an internal short circuit.
Common error codes for Citroën C4 III / C4X airbag control unit repair
During Citroën C4 III / C4X airbag control unit repairs, specific error codes may occur that indicate problems within the module or communication. These codes help identify the cause of the illuminated airbag warning light and initiate the necessary corrective steps to restore safety.
Here are the main error codes that may indicate a problem with the airbag control unit of your Citroën C4 III / C4X:
- D601 → Driver airbag / ignition module error, resistance too low → Internal problem of the control unit or the driver airbag ignition, often after deployment.
- B1000 → Airbag control unit communication error → General malfunction in the data transmission of the control unit or in the vehicle's CAN bus system.
These codes require precise diagnosis to successfully repair the Citroën C4 III / C4X airbag control unit. Specialized workshops can read and correct these errors.
What part numbers are available for the Citroën C4 III / C4X airbag control unit repair?
For the Citroën C4 III / C4X airbag control unit repair, four part numbers are listed for this repair product: 9829595180, 9835661480, 9849195480 and 9851129380. All four are manufacturer numbers and belong to airbag control units of this model. If in doubt, check the label before you complete the repair order.
The part number is printed on the label of the airbag control unit and can be stated in the repair order.
How does the Citroën C4 III / C4X airbag control unit repair work and what are the advantages?
Citroën C4 III / C4X airbag control unit repair typically involves reading and erasing the stored crash data, as well as checking the internal software and hardware. The main advantage is significant cost savings compared to purchasing a new one, as your original control unit is restored to full functionality, often within a few business days.
A specialized service provider can securely erase crash data and reset the error log, preserving vehicle-specific software and coding. This is a safe and effective alternative to the expensive replacement of the entire module.
The repair time for such a Citroën C4 III / C4X airbag control unit repair is often only 3-5 business days. Your repaired control unit will then be fully functional again, and the airbag warning light will go out.
Compatible models and technical features of the Citroën C4 III / C4X airbag control unit
The airbag control unit is specifically designed for the Citroën C4 III and its variants, such as the C4X, produced from around 2020. It is central to the vehicle's safety functions and controls all airbags and seat belt pretensioners, regardless of the engine or trim level of your model.
The control unit processes signals from various impact sensors and communicates with the airbag modules via special, yellow-marked airbag connectors. It is typically located in the center console or under the dashboard, protected from external influences. Built-in short-circuit clips provide additional safety during handling.
This module is also relevant for older C4 models, such as the 2006 C4 Coupé Diesel. Removal and installation require specialist knowledge and safety precautions, such as disconnecting the vehicle battery.
4.8
Based on 246 reviews
What our customers say
„Ok.“
Zsolt Szabólast week„Works like a charm!“
Leoly4 weeks ago„Everything went perfectly, I can only recommend it.“
Automatically translated · Original: German
ka irgendwas2 days ago„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
Gerd Goldammer3 days ago„Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!“
Automatically translated · Original: German
Christian Maegerlein5 days ago„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 👍“
Automatically translated · Original: German
Toni Buien5 days ago„Uncomplicated service. Fast and thorough. Can only recommend.“
Automatically translated · Original: German
Abdul KS6 days ago„All great👍“
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Edin Avdiclast week„All great, fast delivery. Thanks.“
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Andrej Ivanovlast week„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“
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Dennis Welast week„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“
Automatically translated · Original: German
Tokeh Tokehlast week„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“
Automatically translated · Original: German
Sven Wegenerlast week„Ok.“
Zsolt Szabólast week
