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Airbag24

Mazda Mazda3 BN airbag control unit repair

BHS2-57-K30A · Label

  • Label
  • Connector
  • Back
  • BHS2-57-K30A
  • BRE7-57K30A

Mazda Mazda3 BN 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.

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.

4.8
Google 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.

We can only tell in our workshop whether your unit is defective and can be repaired.

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
Mazda
Model
Mazda Mazda3
Series
BN (2013-2017)BN Facelift (2017-2019)
Mazda Mazda3 BN
Mazda Mazda3 BNPhoto: Vauxford · CC BY-SA 4.0 · 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 246 reviewsView all reviews →

What is a Mazda Mazda3 BN airbag control unit?

The Mazda Mazda3 BN airbag control unit is your vehicle's central safety unit, which specifically activates all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors relevant sensors, stores important crash data, and ensures the proper functioning of the entire passive safety system. A professional Mazda Mazda3 BN airbag control unit repair is crucial for restoring vehicle safety.

This safety-relevant electronic control unit is responsible for various airbag types, including driver, passenger, side, and curtain airbags. It thus ensures comprehensive occupant protection in the event of a collision. The module is typically mounted near the center console to efficiently ensure all necessary connections.

Why is the Mazda Mazda3 BN airbag control unit defective?

A Mazda Mazda3 BN airbag control unit often fails because it permanently stores crash data after an accident, blocking the system and signaling a malfunction. Internal electronic errors, moisture ingress, or age-related material fatigue can also lead to failures that require urgent repair or replacement of the module. Such defects significantly compromise vehicle occupant safety.

Common indicators of a malfunction include illuminated airbag warning lights in the dashboard. This could mean that the control unit has lost communication with the vehicle or that internal components are damaged. A precise diagnosis at a specialist workshop is essential to determine the specific cause of the failure and initiate a professional repair.

Common error codes for Mazda Mazda3 BN airbag control unit repair

During a Mazda Mazda3 BN airbag control unit repair, specific error codes occur that directly indicate problems with the airbag control unit itself. These diagnostic trouble codes (DTCs) signal communication problems or internal defects within the module and are crucial for locating and correcting the problem. Reading these codes is the first step toward proper diagnosis and repair.

  • B0010 → Airbag control unit communication error → Airbag ECU
  • B1000 → Control unit communication error → Airbag ECU

What part numbers are available for the Mazda Mazda3 BN airbag control unit repair?

For the Mazda Mazda3 BN airbag control unit repair, this repair product currently lists the following part numbers, which belong to airbag control units of this model and serve to identify the module in connection with the repair: BHS2-57-K30A, BRE7-57K30 and BRE7-57K30A.

The part number is printed on the label of the airbag control unit and can be stated on the repair order.

4.8

Based on 246 reviews

What our customers say

„Ok.“

Zsolt SzabóZsolt Szabólast week

„Works like a charm!“

LeolyLeolylast month

„Everything went perfectly, I can only recommend it.“

Automatically translated · Original: German

ka irgendwaska 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 GoldammerGerd Goldammer3 days ago

„Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!“

Automatically translated · Original: German

Christian MaegerleinChristian Maegerlein5 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 BuienToni Buien6 days ago

„Uncomplicated service. Fast and thorough. Can only recommend.“

Automatically translated · Original: German

Abdul KSAbdul KS6 days ago

„All great👍“

Automatically translated · Original: German

Edin AvdicEdin Avdiclast week

„All great, fast delivery. Thanks.“

Automatically translated · Original: German

Andrej IvanovAndrej 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 WeDennis 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 TokehTokeh 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 WegenerSven Wegenerlast week

„Ok.“

Zsolt SzabóZsolt Szabólast week
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