Works like a charm!
Smart #5 1st generation airbag control unit repair
Smart #5 1st generation 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
excluding VAT and 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
Specifications
- Make
- Smart
- Model
- Smart #5
- Series
- 1st generation (2025-XXXX)
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!!
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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 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
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Everything works great
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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 Smart #5 1st generation airbag control unit?
The airbag control unit in the Smart #5 1st generation is the central control unit of the restraint system (SRS). It evaluates the signals from the crash sensors and, in an accident, decides within milliseconds which airbags and seatbelt pretensioners to deploy.
At the same time it continuously monitors the system and reports faults via the airbag warning light. After an accident it stores crash data and locks itself.
The control unit is fitted in the Smart #5 1st generation (since 2025). Within the model series, the version can differ depending on equipment and year of manufacture.
Why is the Smart #5 1st generation airbag control unit defective?
The most common cause is crash data stored after an accident, even if no airbag was deployed. Added to this are aged electronic components, cold solder joints, moisture and corrosion on connectors, and voltage spikes caused by a weak battery or jump-starting.
The crash data stays stored in the unit even if no airbag has deployed. It cannot be deleted with an ordinary diagnostic tool, so the control unit remains locked even though the vehicle looks fine on the outside again after the accident.
There are other causes as well. Electronic components age, solder joints become cold and brittle, and moisture causes corrosion and contact resistance on connectors. Voltage spikes, for example from a weak battery or a jump start, can also damage the electronics.
Typical signs are a permanently lit airbag warning light, a fault memory that cannot be cleared, or a diagnostic tool that cannot connect to the control unit.
Common error codes for Smart #5 1st generation airbag control unit repair
The error codes on the Smart #5 1st generation are manufacturer-specific. They are read from the fault memory with a diagnostic tool and show which area of the restraint system is faulty.
To read them, connect a suitable diagnostic tool to the diagnostic socket and open the fault memory of the airbag system. There you will see the stored entries with their descriptions. Only then can you work out what they mean.
A code alone does not show for certain that the control unit is defective: connectors, wiring or an airbag module can also be the cause. Enclose the read-out report with the unit you send in. Only the inspection clarifies where the fault lies.
What part numbers are available for the Smart #5 1st generation airbag control unit repair?
The part number is on the label of the airbag control unit in the Smart #5 1st generation. It determines the exact version, because within a model series there are different numbers depending on equipment and year of manufacture.
Read the number from the label and state it in the repair order. Whether the unit is defective is only shown by reading out the fault memory or by the inspection.
This is how you get to the repair: first have the fault memory read out and disconnect the battery. Then remove the control unit, create a repair order online and send the unit in. Processing at Airbag24, with checking, repairing and testing, usually takes 3–4 working days. Your own unit is repaired and then sent back to you.
The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.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!!“
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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“
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Andreas Foxlast week„Everything works great“
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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!“
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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…“
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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
