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Mercedes-Benz A-Class Z177 Sedan Airbag Control Unit Repair
Mercedes-Benz A-Class Z177 Sedan 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.
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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
- Mercedes-Benz
- Model
- Mercedes-Benz A-Class
- Series
- Z177
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 271 reviewsView all reviews →
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Airbag24 is a very well organized company. The shipping procedure is correct and reliable. The quick repair right after receipt, the clear payment after repair, the UPS shipping right away. I am very satisfied with the repair of my airbag control unit on Ducato 250 2.3 130 hp year 2018. The reassembly is easy. The airbag light went off after reconnecting the battery and everything went back to how it was before. Very good service!
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⭐⭐⭐⭐⭐ I am absolutely thrilled and very satisfied with the service from Airbag24! The processing went smoothly and the delivery was incredibly fast. Everything worked perfectly. I can recommend Airbag24 without reservation and will gladly use the company again at any time. Many thanks for the excellent service!
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What is a Mercedes-Benz A-Class Z177 Sedan airbag control unit?
The Mercedes-Benz A-Class Z177 Sedan airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It continuously monitors sensors, stores crash data, and ensures the proper functioning of all airbag modules and belt tensioners in the vehicle to ensure maximum occupant safety.
This control unit is an essential component of the Supplemental Restraint System (SRS) of your Mercedes-Benz A-Class Z177 Sedan.
It processes real-time data from impact sensors to initiate the necessary protective measures in milliseconds.
The OEM quality of this component, often supplied by Bosch, guarantees maximum reliability and precise functionality during the Mercedes-Benz A-Class Z177 Sedan airbag control unit repair.
Why is the Mercedes-Benz A-Class Z177 Sedan airbag control unit defective?
The Mercedes-Benz A-Class Z177 Sedan airbag control unit can fail for a variety of reasons, often due to internal errors such as EEPROM damage, overvoltage in the vehicle electrical system, communication problems in the CAN bus, or after an accident that permanently stores crash data. A defective control unit must be repaired or replaced immediately for your safety.
Common causes of failure are internal memory errors that prevent the system from initializing correctly.
Problems with the power supply or faulty CAN bus communication can also damage the control unit.
After a crash, the module saves the impact data, making reactivation impossible without professional Mercedes-Benz A-Class Z177 Sedan Airbag Control Unit Repair.
Early diagnosis in the workshop helps to avoid serious safety defects.
Common error codes for Mercedes-Benz A-Class Z177 Sedan Airbag Control Unit Repair
During the Mercedes-Benz A-Class Z177 Sedan airbag control unit repair, specific error codes occur that indicate internal problems with the control unit itself, not with external sensors or components. These codes require precise diagnostics to identify the cause of the failure and restore system safety.
- B1000 → Control unit communication error → Internal communication failure or connection problems of the airbag ECU.
- B1120 → Internal memory or EEPROM error → Damage to the non-volatile memory in the control unit, often after an overvoltage or accident.
- B1200 → Power supply error in the control unit → Insufficient or unstable power supply to the airbag module.
- B1240 → Internal control unit error (e.g. internal logic) → General failure of the internal processing logic of the control unit.
- B1320 → CAN bus communication error → Disturbed data transmission via the vehicle communication network.
- B1600 → Internal Error Memory (Similar to Internal Error Code 240) → Critical internal error in the memory area of the control unit, requiring replacement or specialized repair.
What part numbers are available for the Mercedes-Benz A-Class Z177 Sedan airbag control unit repair?
For the Mercedes-Benz A-Class Z177 Sedan Airbag Control Unit Repair, two main OEM part numbers are verified: The Mercedes-Benz original part number A 177 900 03 04 and the corresponding Bosch supplier part number 0 285 015 019. These numbers guarantee the compatibility and originality of the replacement part for your vehicle.
The Mercedes-Benz OEM part number A 177 900 03 04 is directly assigned to the airbag control unit for the A-Class Z177 sedan.
The Bosch part number 0 285 015 019 is that of the original supplier who produces the hardware for the control unit.
Both numbers are valid for the A-Class Z177 (W177) sedan until the 2022 model update and have been confirmed by independent sources.
When sourcing a Mercedes-Benz A-Class Z177 Sedan Airbag Control Unit Repair, rely exclusively on these verified numbers.
Guide
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4.8
Based on 271 reviews
What our customers say
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Luke Duke2 days ago„Top“
Konstantin Wuckert6 days ago„Top!“
mirko leistner2 weeks ago„Ok.“
Zsolt Szabó4 weeks ago„Airbag24 is a very well organized company. The shipping procedure is correct and reliable. The quick repair right after receipt, the clear payment after repair, the UPS shipping right away. I am very satisfied with the r…“
Automatically translated · Original: French
Mais Mais2 days ago„⭐⭐⭐⭐⭐ I am absolutely thrilled and very satisfied with the service from Airbag24! The processing went smoothly and the delivery was incredibly fast. Everything worked perfectly. I can recommend Airbag24 without reservati…“
Automatically translated · Original: German
Artur W.2 days ago„Sent in a defective airbag control unit for my Ducato. After a few days the info that unfortunately it's unrepairable, but right away an offer for a replacement unit. Agreed and received a few days later. Installed and n…“
Automatically translated · Original: German
Gunther Freymuth2 days ago„Super satisfied, top quality and shipping mega fast. Installation child's play, happy to order again anytime“
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Benjamin Hinrichs2 days ago„Top service, fast repair and shipping, nice and helpful support, gladly again anytime“
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Roman Schneider3 days ago„Thanks to the team! Very fast processing, flawless shipping, control unit works perfectly again and was above all much cheaper than a new unit.“
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Fritz Ring4 days ago„Top advice on the phone, my control unit/Fiat 500 arrived there on a Wednesday, Friday came the message: Defect found and successfully fixed, by Monday I already had it in the mail. The airbag light came on, the workshop…“
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Jessica Gerdes4 days ago„Serious company, fast and efficient work. Airbag message problem solved following their intervention on my calculator. Thank you.“
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Gerald Di Nota5 days ago„Top!!“
Luke Duke2 days ago
