Works like a charm!
Mercedes-Benz SLR C199 Coupé airbag control unit repair
Mercedes-Benz SLR C199 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(233)
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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 SLR
- Series
- C199 Coupé (2003-2009)
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 233 reviewsView all reviews →
Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!
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 airbag light). Thanks to Airbag 24 in Berlin 👍👏. Gerd
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Fast repair and fast shipping Simply top
Automatically translated · Original: German
Everything works great
Automatically translated · Original: German
Ultra fast delivery, fit really well in the end. There was even a pen and gummy bears included. :D Definitely again, thank you very much!
Automatically translated · Original: German
What is a Mercedes-Benz SLR C199 Coupé airbag control unit?
The Mercedes-Benz SLR C199 Coupé airbag control unit is your vehicle's central safety unit, which activates all occupant restraint systems 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 the seat belt pretensioners for maximum safety.
This safety-critical component processes signals from acceleration sensors and crash sensors.
Within milliseconds, it decides whether the restraint systems need to be activated.
Why is the Mercedes-Benz SLR C199 Coupé airbag control unit defective?
A defect in the Mercedes-Benz SLR C199 Coupé airbag control unit often occurs after an accident, as crash data is permanently stored, preventing the error log from being erased. Internal hardware or software errors can also lead to a failure, causing the airbag warning light to illuminate and impair function.
After an impact, the control unit saves a so-called crash data record.
This record cannot be easily reset and requires a specialized Mercedes-Benz SLR C199 Coupé airbag control unit repair.
Internal malfunctions or short circuits within the control unit are also common causes of failure.
This results in the vehicle's entire safety electronics being blocked.
Common error codes for Mercedes-Benz SLR C199 Coupé airbag control unit repair
Specific error codes directly indicate problems with the Mercedes-Benz SLR C199 Coupé airbag control unit, including communication problems or internal defects. In particular, references to stored crash data require a professional Mercedes-Benz SLR C199 Coupé airbag control unit repair to restore safety functions and clear the warning light.
- B1000 → Control unit communication error → The control unit cannot communicate correctly with other systems.
- B220700 → Internal error in the "Supplemental Restraint System" control unit → A critical internal defect was detected in the airbag control unit.
- B9111 → Internal control unit error → General internal malfunction of the control unit hardware or software.
- B2D92 → Control unit N2/7 faulty → Refers to the airbag control unit as component N2/7 in the system that has a fault.
- 92C3 → Sidebag rear right - short circuit to ground → Although a sidebag is mentioned, this can indicate an internal error detected by the control unit.
The error code "Crash data stored" is stored after an accident and blocks the system.
For an accurate diagnosis, a manufacturer-specific diagnostic tool such as Mercedes-Benz Xentry or Bosch ESI[tronic] is required.
Resetting or repairing the airbag control unit is often the only way to correct these errors and clear the airbag warning light.
What part numbers are available for the Mercedes-Benz SLR C199 Coupé airbag control unit repair?
For Mercedes-Benz SLR C199 Coupé airbag control unit repairs, specific part numbers are relevant to ensure compatibility with the vehicle. While exact verification can be complex without a VIN, we know certain numbers that assist in identifying and repairing this safety-critical component.
The primary Mercedes-Benz part number for the airbag control unit is A221 820 09 85.
The corresponding Bosch part number is 0 285 001 552.
It is advisable to compare the part number with the chassis number (VIN) before a Mercedes-Benz SLR C199 Coupé airbag control unit repair to ensure a 100% fit.
Compatible vehicle models for the Mercedes-Benz SLR C199 Coupé airbag control unit repair
The Mercedes-Benz SLR C199 Coupé airbag control unit repair primarily concerns the Mercedes-Benz SLR McLaren C199, as this control unit was developed specifically for this super sports car. However, it is also used in other Mercedes models of similar years, allowing for a broader applicability of the repair service.
The control unit is primarily designed for the Mercedes-Benz SLR McLaren C199 (Coupé and Roadster) built between 2004 and 2009.
It is also compatible with the Mercedes-Benz CL-Class C215 (approx. 1999–2006).
It is also used in the Mercedes-Benz S-Class W220 (approx. 1998–2005).
This modular design with potentially different programming is typical of the vehicle architecture of this time.
Technical features and installation position of the Mercedes-Benz SLR C199 Coupé airbag control unit
The Mercedes-Benz SLR C199 Coupé airbag control unit is characterized by its fast processing of sensor signals and the permanent storage of crash data, which requires a special Mercedes-Benz SLR C199 Coupé airbag control unit repair. It is centrally located in the vehicle to ensure optimal connectivity to all safety-relevant components and must be handled exclusively by qualified personnel.
The control unit processes signals from acceleration sensors and crash sensors throughout the vehicle.
It decides in a fraction of a second whether the airbags and belt tensioners are triggered.
After an accident, the crash data remains stored and can only be deleted by a specialized repair.
The software is tailored to the SLR's safety architecture.
The airbag warning light in the cockpit is controlled directly by the control unit and signals error conditions.
Typically, the airbag control unit is installed centrally in the vehicle, often in the dashboard area or behind the center console.
This ensures short and protected connections to all associated sensors and airbags.
Due to its safety-relevant nature, installation and removal must only be carried out by qualified specialist workshops.
Before removing the device, it is essential to disconnect the vehicle battery to prevent accidental activation.
4.8
Based on 233 reviews
What our customers say
„Works like a charm!“
Leoly3 weeks ago„Airbag control unit Fiat 500 was broken. Hard to believe but they can really repair it! Recommendation!!“
Automatically translated · Original: German
Christian Maegerleinlast week„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 f…“
Automatically translated · Original: German
Gerd Goldammerlast week„Fast repair and fast shipping Simply top“
Automatically translated · Original: German
Andreas Foxlast week„Everything works great“
Automatically translated · Original: German
Wolfgang Katenzlast week„Ultra fast delivery, fit really well in the end. There was even a pen and gummy bears included. :D Definitely again, thank you very much!“
Automatically translated · Original: German
Tim Hammer2 weeks ago„I drive a W210 estate. My control unit was broken and because of that I couldn't go to TÜV. I was recommended Airbag24 from a forum. I sent in my control unit. Unfortunately everything was a bit under time pressure and I…“
Automatically translated · Original: German
Franz Dampf2 weeks ago„Motorhome Fiat Ducato. Fault airbag lamp lit permanently, could also not be reset after reading it out. Fault was permanently present. Quick friendly contact with Airbag24, described the fault, known problem was the stat…“
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Rene Larisch2 weeks ago„Professionals are at work here, any additional repairs that may arise are carried out without complaint and without discussion...always happy to come back.“
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Manfred Gunia3 weeks ago„From the order to the repair everything worked well, airbag control unit installed, the light goes off again as it should, good service, fast repair and return shipping. Thanks 👍👍👍“
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Petra3 weeks ago„Got the second airbag control unit from you for another car. Fits, no more error message. Great service Can only recommend. Super fast delivery, and they keep what they promise. A big thank you to this company.“
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Mama 43 weeks ago„Super fast service and repair Fast processing“
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Dennis Baron4 weeks ago„Works like a charm!“
Leoly3 weeks ago
