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Audi A4 B5 8D airbag control unit repair
8A0 959 655 C · Label
- Label
- Connector
- Back
- 8A0 959 655 C
- 8D0 959 655 F
- 8D0 959 655 J
- 8D0 959 655 TD
Audi A4 B5 8D 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
Replacement unit available
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
- Audi
- Model
- Audi A4
- Series
- B5 8D (1994-1999)B5 8D Facelift (1999-2001)
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 an Audi A4 B5 8D airbag control unit?
The Audi A4 B5 8D airbag control unit is the central safety unit that activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors sensors, stores important crash data, and ensures the proper functioning of all airbag modules in the vehicle, which is essential for safety.
This electronic control unit, often installed in the center console, receives signals from impact sensors in the vehicle.
Based on these signals, the control unit decides in milliseconds whether to trigger the passive safety systems for occupant safety.
It is also responsible for diagnosing faults in the airbag system and stores relevant information for the workshop.
A defective unit requires a professional Audi A4 B5 8D airbag control unit repair.
Why is the Audi A4 B5 8D airbag control unit defective?
Because the Audi A4 B5 8D airbag control unit can be subject to complex internal electronic errors or external influences such as overvoltage, the airbag warning light often remains permanently illuminated. This requires a professional Audi A4 B5 8D airbag control unit repair, as such defects impair the functionality of the entire safety system.
Common causes of failure are internal component failure, corrosion due to moisture or improper interventions on the system.
After an accident, the control unit stores crash data that causes permanent deactivation, even if there is no visible damage.
This stored data blocks the system from re-triggering, which is why a reset or replacement is necessary.
Even low on-board voltage can cause sporadic errors in the control unit, which require precise diagnosis.
Common error codes for Audi A4 B5 8D airbag control unit repair
When repairing the Audi A4 B5 8D airbag control unit, specific error codes are crucial for identifying the cause of the airbag warning light. Codes like 65535 or B2000 49 directly indicate an internal defect in the control unit, making repair or replacement necessary.
- 65535 → Control unit defective → Non-resettable malfunction in the internal system of the airbag control unit.
- B2000 49 → Internal electronics error → A serious internal error that affects the function of the control unit and permanently activates the airbag warning light.
- 532 → Supply voltage / signal too low (sporadic) → Problems with the on-board voltage or insufficient power supply that can affect the airbag control unit.
- 0485833 → Control unit defective, internal error → A documented internal defect in the control unit, which also permanently activates the airbag warning light and cannot be deleted.
- FFFF → Component defective (control unit) → A general error code that indicates a defect in the airbag module itself.
What part numbers are available for the Audi A4 B5 8D airbag control unit repair?
For the Audi A4 B5 8D airbag control unit repair, several specific OEM part numbers are relevant, ensuring exact compatibility with your vehicle model. These numbers, such as 8D0 959 655 L or 8A0 959 655 C, identify the correct control unit for a safe restoration of airbag function.
The most common original Audi/Continental numbers relevant for workshop diagnostics include:
- 8D0 959 655 L (original airbag control unit from Audi/Continental)
- 8D0 959 655 F (original airbag control unit, often labeled as non-repairable)
- 8D0 959 655 TB (original replacement unit, directly compatible with 8D0 959 655 F)
- 8D0 959 655 J (Another original part number of the airbag control unit from Audi/Continental)
- 8A0 959 655 C (original airbag control unit from Audi/Siemens/Continental, especially for diesel models such as the AFN engine)
These part numbers are crucial to finding the correct replacement part and ensuring a successful repair if the old unit is broken.
Only OEM part numbers or confirmed direct replacement numbers should be used for repair and replacement to ensure full functionality.
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👍“
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Edin Avdic6 days ago„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“
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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
