Ok.
Citroën Xsara I airbag control unit repair
Citroën Xsara I 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)
Secure payment with
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 Xsara
- Series
- I (1997-2000)I Facelift (2000-2006)
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 Xsara I airbag control unit?
The Citroën Xsara I airbag control unit is the central safety unit in the vehicle, activating all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously receives data from crash sensors, stores relevant crash data, and ensures the immediate and proper functioning of all airbag modules for occupant safety.
This electronic component is essential for active safety and must always function perfectly.
It plays a key role in deploying airbags in milliseconds to minimize injuries in the event of an impact.
A malfunction urgently requires a professional Citroën Xsara I airbag control unit repair, otherwise the entire passive safety system is deactivated.
Without a functioning control unit, there is an increased safety risk in road traffic.
The control unit is also responsible for diagnosing and storing error codes that indicate problems in the airbag system.
It communicates via the OBD2 interface to enable reading.
Why is the Citroën Xsara I airbag control unit defective?
A Citroën Xsara I airbag control unit often fails due to internal memory corruption, crash data not being erased, or a power failure. Software errors or improper repairs can also lead to a failure, causing the system to stop functioning and require repair.
A defect often occurs after an accident because the control unit stores so-called crash data that blocks the system.
This data must be professionally deleted in order to put the control unit back into operation.
Internal errors, such as those indicated by codes B1100 or B1500, indicate damaged memory in the device.
Such problems often require a specialized Citroën Xsara I airbag control unit repair.
A faulty power supply, identified by error code B1201, can also lead to control unit failure.
This can be caused by faulty cables, fuses or the vehicle battery.
Software errors (B1300) or incorrect coding (B1401) can also damage the airbag control unit.
In these cases, repair of the device is necessary, where crash data is deleted and software is restored. The unit returns with its vehicle-specific programming and is plug-and-play.
Common error codes for Citroën Xsara I airbag control unit repair
When repairing a Citroën Xsara I airbag control unit, specific error codes are crucial for accurately diagnosing the cause of a defect. These codes directly indicate problems within the control unit itself, from communication failures to internal memory errors or power supply issues.
Correctly reading and interpreting these error codes is the first step to successful troubleshooting.
This is the only way to decide whether the airbag control unit can be repaired or whether it needs to be replaced.
The following codes are the most common, which point directly to the airbag control unit of the Citroën Xsara I and require professional diagnosis:
- B1000: Communication error → The control unit cannot communicate with the diagnostic device → Often occurs in the case of serious internal defects or failures.
- B1100: Internal memory error → The control unit has problems with its internal data memory → Often associated with a system failure.
- B1201: Power supply defective or interrupted → The control unit receives no power supply or a faulty power supply → Can be caused by a cable break or fuse failure.
- B1300: Airbag control unit software error → The control unit's internal software is damaged or faulty → Requires reprogramming or repair.
- B1401: Incorrect coding/assignment in the control unit → The control unit is incorrectly coded or the vehicle ID is missing → Occurs after replacement with a used unit, not after a professional repair.
- B1500: Memory error / reset required → A general memory error that requires a reset of the control unit → Often after a crash.
- B1600: Crash data memory cannot be deleted → Accident data is permanently blocked in the memory → Prevents reactivation of the airbag system.
- B1700: Missing or incorrect chassis number in the control unit → The VIN is incorrect or missing in the system → Can affect the functionality of the control unit.
What part numbers are available for Citroën Xsara I airbag control unit repair?
For a successful Citroën Xsara I airbag control unit repair, precise knowledge of the part number is crucial, as compatibility and interchangeability depend on it. Original OEM part numbers from Citroën or suppliers like Autoliv ensure that the replacement part fits the vehicle model exactly.
These part numbers guarantee that the control unit is technically and functionally compatible with your Citroën Xsara I.
Different variants of the Xsara I, especially diesel models, use different numbers.
It is important to check the part number on your faulty control unit to find the correct part for repair or replacement.
Only an exact match ensures the correct function of the airbag system.
- 9633504180: Original Citroën OEM part number for Xsara I airbag control units (often petrol engines 1997-2000).
- 550741100: Original Autoliv OEM part number used in parallel with 9633504180 (supplier of Citroën).
- 9633621380: Citroën OEM part number, often for diesel variants of the Xsara I Berlina.
- 550535300: Related OEM part number from a supplier, often for diesel models of the Xsara I.
- 9638101980: Citroën OEM part number, specific for Xsara I 1.9 Diesel SX models.
- 550776300: Original Autoliv OEM part number for SRS airbag control units in Citroën Xsara I (also relevant for used parts).
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 Goldammer2 days ago„Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!“
Automatically translated · Original: German
Christian Maegerlein4 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 KS5 days ago„All great👍“
Automatically translated · Original: German
Edin Avdic6 days ago„All great, fast delivery. Thanks.“
Automatically translated · Original: German
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“
Automatically translated · Original: German
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
