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Audi RS4 B5 8D airbag control unit repair
8D0 959 655 F · Label
- Label
- Connector
- Back
Audi RS4 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?excluding VAT and 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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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 RS4
- Series
- B5 8D (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 RS4 B5 8D airbag control unit?
The Audi RS4 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 relevant crash data, and ensures the proper functioning of all airbag modules in the vehicle. A professional Audi RS4 B5 8D airbag control unit repair restores safety.
This module, also known as the Airbag Control Unit (ACU), is essential for dynamic accident detection. It coordinates the activation of the restraint systems in fractions of a second.
The control unit performs a permanent self-diagnosis and reports malfunctions via the airbag warning light in the instrument cluster.
Why is the Audi RS4 B5 8D airbag control unit defective?
An Audi RS4 B5 8D airbag control unit often fails due to internal component problems, an electrical short circuit, or crash data errors triggered by an accident. Moisture ingress or age-related wear can also lead to failure, making an Audi RS4 B5 8D airbag control unit repair or replacement inevitable.
Common causes include internal damage to the microprocessor or memory module, which impairs the function of the unit.
After an accident, the control unit stores crash data that can cause a permanent error light, even if the system is otherwise intact.
Problems with the vehicle electrical system voltage or short circuits in the wiring can also cause the control unit to fail or malfunction.
Common error codes for Audi RS4 B5 8D airbag control unit repair
When diagnosing a faulty Audi RS4 B5 8D airbag control unit, specific error codes will occur that indicate internal damage or communication problems. These codes are crucial in determining whether an Audi RS4 B5 8D airbag control unit repair or replacement is necessary and are read using diagnostic tools such as VCDS.
- 65535: Control unit defective → Internal functional failure that cannot be deleted and usually requires replacement.
- B1000: Control unit communication error → No or faulty communication with the control unit via the CAN bus.
- 00588: Driver side airbag ignition electrode (N95) resistance too high/too low → May indicate internal problems in the control unit if the ignition electrode itself is intact.
- 01217: Driver's side airbag ignition electrode (N199) error → Possible control unit or electronics failure, even if the module is intact.
Other codes that affect sensors, seat belt pretensioners, or airbag modules are usually not direct errors in the control unit itself.
Code 65535 is the most common indicator of an irreparable or severely damaged control module that requires replacement or specialized repair.
What part numbers are available for the Audi RS4 B5 8D airbag control unit repair?
For the Audi RS4 B5 8D airbag control unit repair, four numbers are listed for this repair product: the Audi manufacturer part numbers 8D0 959 655 F, 8D0 959 655 L and 8D0 959 655 TB, plus the Bosch supplier number 285001305. They belong to airbag control units of this model.
The part number is printed on the label of the airbag control unit and can be entered in the repair order.
Technical details of the Audi RS4 B5 8D airbag control unit
The Audi RS4 B5 8D airbag control unit is a high-precision unit based on the vehicle's 12V electrical system and communicates with other control units via CAN bus. It is specifically designed for continuous monitoring of acceleration sensors and lightning-fast airbag deployment in the event of an accident, which requires a reliable Audi RS4 B5 8D airbag control unit repair.
The system includes comprehensive fault monitoring of all sensors, airbags and all wiring.
An internal memory records all event and error codes, including crash data that is important for accident analysis.
After an impact, the pyrotechnics of the airbags and belt tensioners are activated by the control unit to protect the occupants.
Installation position and connections for the Audi RS4 B5 8D airbag control unit
The Audi RS4 B5 8D airbag control unit is typically located in the vehicle's center console, often beneath the carpeting for optimal response to impact signals. Access requires removal of the center console and adjacent trim panels, ensuring precise installation after an Audi RS4 B5 8D airbag control unit repair.
The unit is usually screwed to the center of the vehicle, under the glove compartment or armrest area.
To remove the carpet, the center console must be carefully removed, sometimes through special perforations in the carpet.
Electrical connections include yellow, airbag-specific multi-plugs equipped with gold-plated pins for airbag and belt pretensioner wires.
These yellow plugs have special clamps that prevent short circuits when unplugging and thus avoid misfires.
Special features of the Audi RS4 B5 8D airbag control unit repair
Audi RS4 B5 8D airbag control unit repair has special characteristics because not all control unit variants are repairable. In non-repairable cases, the replacement control unit must be installed with proper coding. The repaired original, however, is immediately ready for use after installation.
Some control units, such as version 8D0 959 655 F, are known to be irreparable and must be replaced.
The repaired control unit retains its vehicle-specific parameters and is immediately ready for use after installation – no coding required.
This coding ensures that functions such as airbag type and seat occupancy monitoring are correctly configured.
The high safety relevance of the airbag control unit makes its installation, removal and repair a task for trained personnel.
Errors or improper handling during the Audi RS4 B5 8D airbag control unit repair can seriously endanger the safety of the vehicle.
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.“
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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“
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
