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Mercedes-Benz B-Class W247 airbag control unit repair
Mercedes-Benz B-Class W247 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
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Repair type
Which repair matches your fault code?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(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
- Mercedes-Benz
- Model
- Mercedes-Benz B-Class
- Series
- W247 (2018-XXXX)
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 a Mercedes-Benz B-Class W247 airbag control unit?
The Mercedes-Benz B-Class W247 airbag control unit is the central safety unit in your vehicle. It is responsible for processing signals from crash sensors and precisely controlling the deployment of all relevant airbags and seatbelt pretensioners in the event of an accident, ensuring maximum occupant safety and storing important crash data.
This electronic control unit (ECU) continuously monitors the vehicle's condition. It is crucial for the correct functioning of all passive safety systems.
A professional Mercedes-Benz B-Class W247 airbag control unit repair ensures that your airbag system is fully functional again after an incident.
Why is the Mercedes-Benz B-Class W247 airbag control unit defective?
The Mercedes-Benz B-Class W247 airbag control unit can be defective because crash data was irretrievably stored after an accident, preventing normal function, or due to internal electronic errors and communication problems in the CAN bus. Moisture damage can also lead to failure, necessitating a professional Mercedes-Benz B-Class W247 airbag control unit repair.
A common reason for failure is the storage of crash information after an impact. This prevents the module from being reused without a corresponding reset.
Errors in the control unit's internal software or hardware can also cause the airbag control unit to malfunction and the airbag warning light to illuminate. A prompt diagnosis at a workshop is essential in this case.
Communication problems with other control units in the vehicle via the CAN bus are another typical cause of malfunctions. A precise diagnosis is the first step toward repair.
Common error codes for Mercedes-Benz B-Class W247 airbag control unit repair
During a Mercedes-Benz B-Class W247 airbag control unit repair, specific error codes often occur. These indicate a malfunction of the control unit itself, stored crash data, or problems with communication with other vehicle systems. These codes are crucial for an accurate diagnosis and efficient resolution of the problem with the Mercedes-Benz B-Class W247 airbag control unit.
- B2D97 → Airbag control unit N2/7 defective → Defect in the internal hardware or software of the control unit.
- B1111 → Crash data stored → Airbag control unit contains accident/crash data that prevents the error memory from being erased without repair.
- B2735 → PASS-Key programming mode active → Control unit is in programming mode, which can lead to a blockage of normal function.
- B1000 → Control unit communication error → Communication problem between the airbag control unit and other relevant control units.
- C1020 → CAN communication error → General communication disruption within the CAN bus system.
- C1021 → CAN communication with EA/CC/ISC control unit interrupted → Interruption of the data connection to connected control units.
- C1024 → CAN communication with engine control unit interrupted → Faulty connection to the engine ECU, impairs system functions.
- C1025 → CAN BAS communication with ESP control unit faulty → Faulty coupling between airbag control unit and ESP/ABS system.
What part numbers are available for the Mercedes-Benz B-Class W247 airbag control unit repair?
For the Mercedes-Benz B-Class W247 airbag control unit repair, several verified OEM part numbers are relevant, guaranteeing exact compatibility and functionality. These include both original Mercedes-Benz numbers and those from the OEM supplier Bosch, which are essential for the professional repair of the Mercedes-Benz B-Class W247 airbag control unit.
These part numbers are 100% verified and compatible with the airbag control unit of the Mercedes-Benz B-Class W247:
- A1779025121 (Mercedes-Benz original)
- A2479005709 (Mercedes-Benz original)
- A2479012202 (Mercedes-Benz original)
- A1779027911 (Mercedes-Benz original)
- A1779044100 (Mercedes-Benz original)
- A1779028211 (Mercedes-Benz original)
- 0285015019 (Bosch OEM supplier)
Using these specific part numbers ensures that the replacement part or repaired unit is a perfect fit for your vehicle. This ensures a safe and reliable repair of the Mercedes-Benz B-Class W247 airbag control unit.
4.8
Based on 246 reviews
What our customers say
„Ok.“
Zsolt Szabólast week„Works like a charm!“
Leolylast month„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 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 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 Buien6 days ago„Uncomplicated service. Fast and thorough. Can only recommend.“
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Abdul KS6 days ago„All great👍“
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Edin Avdiclast week„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
