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Mercedes-Benz S-Class C140 Coupé airbag control unit repair
Mercedes-Benz S-Class C140 Coupé 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?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 S-Class
- Series
- C140 Coupé (1992-1998)
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 S-Class C140 Coupé airbag control unit?
The Mercedes-Benz S-Class C140 Coupé airbag control unit repair is your vehicle's central safety unit, which activates all occupant restraint systems such as airbags and seatbelt pretensioners in the event of an accident. It precisely monitors sensors, evaluates data in real time, and stores important crash information to optimally ensure occupant safety and prevent malfunctions.
This electronic module is the heart of the Supplemental Restraint System (SRS) in your Mercedes-Benz C140 Coupé. It communicates with other control units via the CAN bus system, ensuring seamless integration into the vehicle architecture.
Its primary function is to immediately trigger the passive safety systems when needed. A malfunction can cause the airbag warning light to illuminate, requiring immediate Mercedes-Benz S-Class C140 Coupé airbag control unit repair.
Why is the Mercedes-Benz S-Class C140 Coupé airbag control unit defective?
A Mercedes-Benz S-Class C140 Coupé airbag control unit often fails because it stores crash data after an accident that cannot be erased, or because internal components fail due to age. These failures then lead to the deactivation of the safety systems and cause the airbag warning light to illuminate continuously, making immediate repair essential.
The most common causes of failure of this critical component are internal electronic defects or the storage of crash data after an impact. Even a minor impact can cause the control unit to lock up and deactivate the airbag function.
In such cases, a Mercedes-Benz S-Class C140 Coupé airbag control unit repair is often the more economical alternative to purchasing a new one. Furthermore, aging processes, exposure to moisture, or voltage problems in the vehicle electrical system can lead to internal errors in the control unit. A defective control unit like this significantly compromises the safety of your vehicle.
Common error codes for Mercedes-Benz S-Class C140 Coupé airbag control unit repair
During a Mercedes-Benz S-Class C140 Coupé airbag control unit repair, specific error codes occur that directly indicate problems within the control unit itself. These codes often signal internal defects, communication failures, or indelible crash data and require professional diagnostics to determine the exact cause and restore safety.
- B1000 → Control unit communication error → The airbag ECU cannot communicate correctly with other vehicle systems.
- B1003 → Internal error in the airbag control unit → There is a malfunction within the hardware or software of the control unit.
- B119C → Airbag control module internal error → An unspecified internal defect has occurred in the airbag module.
- B1600 → Internal control unit error (SRS system) → The entire SRS system reports an internal error in the central control unit.
- B2D92 → Control unit N2/7 faulty (airbag control unit) → The airbag control unit itself (N2/7) is identified as faulty.
- B9111 → Internal control unit error → A general internal functional error of the control unit was detected.
- AD67 → SRS control unit defective, voltage too high → The airbag control unit is damaged and an overvoltage was registered.
What part numbers are available for the Mercedes-Benz S-Class C140 Coupé airbag control unit repair?
For Mercedes-Benz S-Class C140 Coupé airbag control unit repairs, specific OEM part numbers are relevant to ensure component compatibility and authenticity. The most common and validated numbers are from both Mercedes-Benz itself and the OEM supplier Bosch, which guarantee correct functionality.
- 0285001165 – Bosch – Genuine OEM airbag control unit, commonly found on models such as 600 SEC or CL-600.
- 0008209726 – Mercedes-Benz – Genuine OEM airbag control unit, directly from the vehicle manufacturer.
- 0285001088 – Bosch – Alternative OEM airbag control unit, a compatible number from the leading supplier.
These part numbers are crucial for identifying the correct component for your vehicle and performing a successful Mercedes-Benz S-Class C140 Coupé airbag control unit repair. Verifying the number on your current control unit is essential for accurate repairs.
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 irgendwas3 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“
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Sven Wegenerlast week„Ok.“
Zsolt Szabólast week
