Works like a charm!
Citroën Relay II airbag control unit repair
Citroën Relay II 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.
Matching part numbers
Matching error codes
Notes
Mounting position
Repair type
Choose the service that fits your unit.
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(223)
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Possible airbag error codes for a defective airbag control unit:
Repair time
Our estimated repair time for this product is about: 3–4 business days
Specifications
- Make
- Citroën
- Model
- Citroën Relay
- Series
- II (2001-2006)
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 223 reviewsView all reviews →
Professionals are at work here, any additional repairs that may arise are carried out without complaint and without discussion...always happy to come back.
Automatically translated · Original: German
From the order to the repair everything worked well, airbag control unit installed, the light goes off again as it should, good service, fast repair and return shipping. Thanks 👍👍👍
Automatically translated · Original: German
Got the second airbag control unit from you for another car. Fits, no more error message. Great service Can only recommend. Super fast delivery, and they keep what they promise. A big thank you to this company.
Automatically translated · Original: German
Super fast service and repair Fast processing
Automatically translated · Original: German
Great praise, very competent and courteous.
Automatically translated · Original: German
What is a Citroën Relay II airbag control unit?
The Citroën Relay II airbag control unit is the central safety unit in your vehicle, which activates all occupant restraint systems in the event of an accident. It continuously monitors sensors, stores relevant crash data, and ensures the proper deployment of all airbag modules and seatbelt pretensioners for maximum safety.
This essential module, also known as the airbag ECU, processes signals from acceleration sensors and crash sensors.
Its main task is to fire the airbags precisely and quickly in the event of an impact.
Why is the Citroën Relay II airbag control unit defective?
The Citroën Relay II airbag control unit often fails because internal electronic components wear out over time or are damaged by voltage fluctuations, particularly due to problems with the vehicle's battery. This then leads to communication errors in the airbag system and the persistent activation of the warning light on the dashboard.
A common reason is error code B0100, which indicates an internal defect.
Low supply voltage, often caused by a weak battery, can also affect the control unit.
Communication failures on the CAN bus are also causes that make repair of the control unit necessary.
Common error codes for Citroën Relay II airbag control unit repair
During a Citroën Relay II airbag control unit repair, we primarily diagnose code-specific errors that directly indicate problems with the airbag control unit itself, not with sensors or seatbelt pretensioners. These codes indicate internal defects, supply voltage issues, or communication problems within the system.
- B0100 → Internal electronic error in the airbag control unit → Wear or voltage peaks
- B0100-49 → Internal error in the airbag control unit → Often caused by battery or voltage problems
- B0101 → Supply voltage below threshold → Voltage at control unit too low
- U0019 → CAN bus communication error → interruption of the data connection to the control unit
- B0129 → Communication error in the airbag system → Fault in the connection to other modules
- B0136 → Control unit communication error → General control unit communication problems
- B0137 → Control unit communication error (additional diagnostic code) → Specific internal communication fault
What part numbers are available for Citroën Relay II airbag control unit repair?
For Citroën Relay II airbag control unit repairs, several verified OEM part numbers are relevant, ensuring exact compatibility with your vehicle. These numbers identify the original airbag control unit and are crucial for a successful repair or replacement, as they are specifically designed for your model.
Checking the exact original part number is crucial before any repair to ensure a perfect fit.
These numbers are also relevant for identical models such as the Fiat Ducato and Peugeot Boxer, which use the same system.
Always look for verified OEM numbers to avoid replacement errors.
- 01370978080 → Manufacturer: Citroën / PSA → Type: Original OEM for Citroën Relay II
- 1608428080 → Manufacturer: PSA (Citroën/Fiat) → Type: Original OEM, suitable for Relay II, Ducato, Boxer
- 01366119080 → Manufacturer: PSA → Type: Alternative Original OEM Number
- 01388160080 → Manufacturer: PSA (Citroën Jumper II) → Type: Original OEM for Jumper II (Type 250)
- 00046858203 → Manufacturer: PSA / Supplier → Type: Alternative OEM for Jumper III / Ducato III
- 1394332080 → Manufacturer: PSA / Supplier → Type: OE/OEM Reference Number
- 1681055580 → Manufacturer: PSA / Supplier → Type: Alternative OEM number with the same function
Your specialist for Citroën Relay II airbag control unit repair
We are your experienced partner for professional Citroën Relay II airbag control unit repairs. We offer comprehensive diagnostics and fix the most common defects quickly and reliably. Our service includes the elimination of error codes like B0100 and the restoration of full functionality, restoring your vehicle's safety.
Our workshop has the necessary know-how and specialized equipment to repair your broken airbag control unit.
By repairing instead of replacing the entire unit, you can save costs and protect the environment.
Contact us for a quick diagnosis and a free quote to get your airbag system fully functional again.
4.8
Based on 223 reviews
What our customers say
„Works like a charm!“
Leoly4 days ago„Professionals are at work here, any additional repairs that may arise are carried out without complaint and without discussion...always happy to come back.“
Automatically translated · Original: German
Manfred Guniayesterday„From the order to the repair everything worked well, airbag control unit installed, the light goes off again as it should, good service, fast repair and return shipping. Thanks 👍👍👍“
Automatically translated · Original: German
Petra5 days ago„Got the second airbag control unit from you for another car. Fits, no more error message. Great service Can only recommend. Super fast delivery, and they keep what they promise. A big thank you to this company.“
Automatically translated · Original: German
Mama 46 days ago„Super fast service and repair Fast processing“
Automatically translated · Original: German
Dennis Baronlast week„Great praise, very competent and courteous.“
Automatically translated · Original: German
F. Klimtlast week„The repair saved me a lot of money that Volkswagen wanted to rip me off for. Plug'n'Play installation.“
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Sa Wa2 weeks ago„Fast and inexpensive repair. Have already submitted quite a few things there and was and am very satisfied“
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Michael Mesletzky2 weeks ago„I can recommend Airbag 24 without reservation. The repair of my control unit was done within a few days. It stayed at the fixed price A very cost-effective alternative to buying new.“
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Ralf Woitschitzky2 weeks ago„Fast and competent repair. I gladly recommend it.“
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Stefan3 weeks ago„Everything worked out great. Everything just as described. Costs clear beforehand and the repair time was great too. Gladly again.“
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Torsten Fehl3 weeks ago„Simply perfect, everything fast and everything works flawlessly!!!“
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Gregory Grigorjev3 weeks ago„Works like a charm!“
Leoly4 days ago
