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Mercedes-Benz CLS-Class C219 Saloon airbag control unit repair
2118701185 · Label
- Label
- Connector
- Back
Mercedes-Benz CLS-Class C219 Saloon 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.
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Our estimated repair time for this product is about: 3–4 business days
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Specifications
- Make
- Mercedes-Benz
- Model
- Mercedes-Benz CLS-Class
- Series
- C219 Saloon (2004-2010)

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.
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4.8What is a Mercedes-Benz CLS-Class C219 Saloon airbag control unit?
The Mercedes-Benz CLS-Class C219 Saloon airbag control unit is the central safety unit in your vehicle, which activates all occupant restraint systems precisely and instantly in the event of an accident. It continuously monitors various sensors, stores relevant crash data, and ensures the proper functioning of all airbag modules and belt tensioners for maximum safety.
It processes signals from crash, acceleration, and seat occupancy sensors to determine the impact intensity and direction. The rapid reaction time of milliseconds is crucial for optimal protection of vehicle occupants in the event of a collision.
The control unit also communicates with other vehicle systems and can be read via the diagnostic system (OBD) to indicate errors or triggering. Its function is safety-relevant and forms the basis of the passive safety system.
Why is the Mercedes-Benz CLS-Class C219 Saloon airbag control unit defective?
A Mercedes-Benz CLS-Class C219 Saloon airbag control unit may be defective because it is storing crash data after an accident, has internal component defects, or has been damaged by external influences such as moisture. These defects cause the SRS warning light to illuminate and require a Mercedes-Benz CLS-Class C219 Saloon airbag control unit repair to restore full safety.
Common causes include the permanent storage of crash data after an impact, even if the impact was minor and no airbags were deployed. This blocks the control unit from further operation.
Internal electronic failures, such as defective chipsets or communication problems, can also render the control unit inoperable and require professional diagnosis. In some cases, fluid penetration under the seat can also lead to corrosion and module failure, requiring targeted repair.
Common error codes for Mercedes-Benz CLS-Class C219 Saloon airbag control unit repair
During a Mercedes-Benz CLS-Class C219 Saloon airbag control unit repair, specific B-codes indicate a defect directly within the airbag control unit, rather than in sensors or other components. These error codes signal an internal failure or malfunction of the module itself, requiring a precise diagnosis.
- B1000 → Control unit defective → Internal hardware or software error of the airbag control unit.
- B1103 → Restraint system control unit defective → General malfunction in the area of the airbag ECU, which requires a comprehensive inspection.
- B2D92 → Restraint system control unit defective → Specific error in the restraint system control unit that requires specific repair.
These codes are crucial for correctly diagnosing whether the airbag control unit itself is faulty or whether other components of the restraint system are affected. Accurate troubleshooting and repair are essential to restore full functionality of the safety system and clear the warning light.
For precise diagnosis and resetting of the control unit, manufacturer-specific or advanced diagnostic tools are usually required, as conventional OBD-II scanners often cannot fully read these manufacturer-specific B-codes.
What part numbers are available for the Mercedes-Benz CLS-Class C219 Saloon airbag control unit repair?
For a precise Mercedes-Benz CLS-Class C219 Saloon airbag control unit repair, knowing the exact OEM part numbers is crucial, as these ensure compatibility with your vehicle and flawless operation. The following original Mercedes-Benz and Bosch numbers identify the correct control unit for the C219 Saloon series.
2118701185 | Mercedes Benz | Original OEM
2118702626 | Mercedes Benz | Original OEM
0285001880 | Bosch | Original OEM
0285010146 | Bosch | Original OEM
These part numbers refer exclusively to the airbag control unit for the Mercedes-Benz CLS-Class C219 Saloon and not to sensors or other restraint system modules. Using the correct, verified part number is essential when repairing or replacing a defective control unit to avoid compatibility issues and further failures.
When purchasing spare parts, always pay attention to these original numbers to ensure that the airbag control unit fits your vehicle model and year perfectly and allows for safe repair.
Based on 246 reviews
What our customers say
„Ok.“
„Works like a charm!“
„Everything went perfectly, I can only recommend it.“
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„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
„Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!“
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„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 👍“
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„Uncomplicated service. Fast and thorough. Can only recommend.“
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„All great👍“
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„All great, fast delivery. Thanks.“
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„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
„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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„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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„Ok.“



