Ok.
Mercedes-Benz C-Class S205 Estate Airbag Control Unit Repair
A205 900 18 14 · Label
- Label
- Connector
- A205 900 18 14
- A205 900 95 27
Mercedes-Benz C-Class S205 Estate 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)
Secure payment with
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 C-Class
- Series
- S205 Estate (2014-2021)
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 C-Class S205 Estate airbag control unit?
The Mercedes-Benz C-Class S205 Estate airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It monitors sensors, stores crash data, and ensures the proper functioning of all airbag modules in the vehicle.
This essential component receives real-time data from various sensors in the vehicle, such as acceleration and crash sensors. Based on this information, it decides on the targeted and optimal timing of airbags and seatbelt pretensioners.
The control unit is robustly constructed and usually mounted in the center console or under the driver's seat, protected and centrally integrated into the vehicle's electrical system. It features multi-pin connectors, specifically marked yellow for airbags, with gold-plated pins for secure signal transmission.
Why is the Mercedes-Benz C-Class S205 Estate airbag control unit defective?
A Mercedes-Benz C-Class S205 Estate airbag control unit can be defective because crash data is often permanently stored after an accident, blocking the system. Internal electronic errors or damage to the flash memory can also lead to failure, necessitating repair or replacement.
A common cause of a defective airbag control unit is an accident in which the airbags are deployed. This results in "crash data" being permanently stored in the control unit, and the airbag warning light no longer goes out.
In addition, internal electrical defects, such as those in the flash memory or on the main board, can impair the function of the control unit. Such errors are often irreversible and result in the security system being reported as broken and no longer functioning properly.
Short circuits or overvoltages in the vehicle electrical system can also cause electronic damage to the airbag control unit. In such cases, professional diagnosis and repair of the unit is essential to restore the safety system's full functionality.
Common error codes for Mercedes-Benz C-Class S205 Estate airbag control unit repair
When diagnosing a faulty Mercedes-Benz C-Class S205 Estate airbag control unit, specific error codes directly indicate problems with the unit itself. These codes are crucial for targeted repairs, as they signal internal defects or stored crash data that can often only be erased with special tools.
- B1BC749 → Electrical fault in the airbag control unit → Problems with the internal control unit electronics.
- B220800 → Internal error in the airbag control unit → Non-erasable defect, often in the flash memory or the electronics.
- B220700 → Internal error in the airbag control unit → Non-resettable defect that prevents communication or error clearing.
- B2008 → Control unit error → General malfunction of the airbag control unit, variable causes.
- Crash data saved → Status message after accident → Blocks the error memory permanently, requires specialized deletion or repair.
These specific error codes help specialized workshops quickly identify a system failure and initiate the necessary steps for Mercedes-Benz C-Class S205 Estate airbag control unit repair. It's important to distinguish between these codes and those from sensors or other modules.
What part numbers are available for the Mercedes-Benz C-Class S205 Estate airbag control unit repair?
For the Mercedes-Benz C-Class S205 Estate airbag control unit repair, the following part numbers are stored for this repair product: A 205 900 21 41, A2059002512, A2059008618 and A2059009427. All stored numbers belong to airbag control units of this model and can be stated in the repair order.
The number A205 900 18 14 is also stored. The stored numbers are manufacturer numbers.
The part number of the installed control unit is on its label.
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 Maegerlein6 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.“
Automatically translated · Original: German
Abdul KS6 days ago„All great👍“
Automatically translated · Original: German
Edin Avdiclast week„All great, fast delivery. Thanks.“
Automatically translated · Original: German
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“
Automatically translated · Original: German
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“
Automatically translated · Original: German
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
