Audi A4 B8 8K airbag control unit repair

Name: Audi A4 B8 8K airbag control unit repair
Brand: Airbag24
Price: 79 EUR
Availability: InStock

Audi A4 B8 8K 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.

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Possible airbag error codes for a defective airbag control unit:

U101100 B200049 1321 474 1794 U0151 - Keine Kommunikation mit dem Airbag Steuergerät No communication - control unit defective

Repair time

Our estimated repair time for this product is about: 3–4 business days

Specifications

Make: Audi
Model: Audi A4
Series: B8 8K (2007-2011); B8 8K Facelift (2011-2015)

Audi A4 B8 8K (2007-2011)Photo: Thomas doerfer · CC BY 3.0 · cropped

Audi A4 B8 8K Facelift (2011-2015) — Audi A4 B8 8K (2007-2011)Photo: Thomas doerfer · CC BY 3.0 · cropped

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

4.8

Based on 200 reviewsView all reviews →

Quick delivery and it works perfect in my Mercedes W203! 👌👌

Very professional handling. Everything worked super fast, the information about the status of the processing was very good.

Automatically translated · Original: German

Had the error SRS Airbag Service urgent on my Volvo C30. At Volvo they could only determine that the error with code CFFF cannot be reset. Proposed solution 865 € for a new module, plus removal and installation and coding + VAT! Airbag24 informed perfectly in advance via chat. Sent it Monday, by Friday the module was repaired and back with me. After installation we still had to delete the error. After that the message is gone. Conclusion: cheap alternative if you can invest a bit of own effort for removal and installation and reset

Automatically translated · Original: German

Fast repair, top, friendly quick contact also for Luxembourg. Gladly again Greetings Serge

Automatically translated · Original: German

At first sight I had no confidence. But I don't regret it. Repair ordered, calculator sent, within a few days I had the diagnosis and the payment order. As soon as the payment was made my calculator came back in perfect packaging, repaired, (and accompanied by Haribos). In short, very fast and efficient service. I recommend.

Automatically translated · Original: French

Everything worked out

Automatically translated · Original: German

What is an Audi A4 B8 8K airbag control unit?

The Audi A4 B8 8K airbag control unit is the central safety unit in the vehicle, activating all occupant restraint systems in the event of an accident. It receives signals from numerous sensors, makes split-second decisions about airbag and seatbelt pretensioner deployment, and stores important crash data for post-accident diagnostics.

This essential module is responsible for the correct functioning of the entire passive safety system. It continuously communicates with other control units in the vehicle via the CAN bus.

Regular diagnosis and, if necessary, an Audi A4 B8 8K airbag control unit repair are crucial for vehicle occupant safety.

Why is the Audi A4 B8 8K airbag control unit defective?

An Audi A4 B8 8K airbag control unit often malfunctions because it develops internal software errors, communication problems with other vehicle systems occur, or crash data is permanently stored in memory after an accident. These malfunctions cause the airbag warning light in the instrument cluster to illuminate continuously, rendering the system inoperable.

Typical causes of failure include low voltage, internal processor errors or an incorrect vehicle identification number (VIN).

Damage caused by moisture can also lead to a defect, which makes an Audi A4 B8 8K airbag control unit repair necessary instead of an expensive replacement.

Common error codes for Audi A4 B8 8K airbag control unit repair

During an Audi A4 B8 8K airbag control unit repair, specific error codes are often read out, indicating a malfunction within the control unit itself. These codes typically involve problems with the power supply, internal communication, or a complete inaccessibility of the module, making a diagnosis essential.

U101100 → Undervoltage detected → Airbag control unit
B200049 → Airbag control unit error → Airbag control unit
U015100 → No communication → Airbag control unit
01321 → Airbag control unit not accessible → Airbag control unit
00003 → Control unit defective → Airbag control unit
00474 → Immobilizer control unit (speedometer may be affected) → Airbag control unit
01794 → Control unit incorrect chassis number → Airbag control unit

These error codes relate exclusively to the airbag control unit and require specific repair in the workshop.

What part numbers are available for the Audi A4 B8 8K airbag control unit repair?

For Audi A4 B8 8K airbag control unit repairs, there are several original Audi and compatible Bosch OEM part numbers, all relevant to the A4 B8 8K, A4 Avant B8, and A4 Allroad B8 models. Correct identification of the part number is crucial to ensure the compatibility of the repaired or replaced control unit and prevent failure.

These numbers ensure that the airbag control unit fits the vehicle perfectly and optimally fulfills its safety function.

Verification using the chassis number is always recommended for a safe Audi A4 B8 8K airbag control unit repair.

Part number	Manufacturer	type
8K0 959 655 B	Audi	Original
8K0 959 655 G	Audi	Original
8K0 959 655 N	Audi	Original
8K0 959 655 L	Audi	Original
8K0 959 655 J	Audi	Original
8K0 959 655 P	Audi	Original
8K0 959 655 Q	Audi	Original
8W0 959 655	Audi	Original
5WK44111	Bosch (supplier)	OEM Ref.

This list contains all verified OEM part numbers for the Audi A4 B8 8K airbag control unit, important for any repair.

The Bosch part number 5WK44111 is often used as a reference for compatible Audi airbag control units.

4.8

Based on 200 reviews

What our customers say

„Quick delivery and it works perfect in my Mercedes W203! 👌👌“

Michel Groenewegen9 months ago

„Very professional handling. Everything worked super fast, the information about the status of the processing was very good.“

Automatically translated · Original: German

Lars von Glahn2 months ago

„Had the error SRS Airbag Service urgent on my Volvo C30. At Volvo they could only determine that the error with code CFFF cannot be reset. Proposed solution 865 € for a new module, plus removal and installation and codin…“

Automatically translated · Original: German

fb liqui2 months ago

„Fast repair, top, friendly quick contact also for Luxembourg. Gladly again Greetings Serge“

Automatically translated · Original: German

Serge Bruck2 months ago

„At first sight I had no confidence. But I don't regret it. Repair ordered, calculator sent, within a few days I had the diagnosis and the payment order. As soon as the payment was made my calculator came back in perfect…“

Automatically translated · Original: French