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Mercedes-Benz SLK-Class R171 Convertible airbag control unit repair
A 171 820 43 26 · Label
- Label
- A 171 820 43 26
- A1718202426
- A1718203625
Mercedes-Benz SLK-Class R171 Convertible 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(258)
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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 SLK-Class
- Series
- R171 Convertible (2004-2011)
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 258 reviewsView all reviews →
Ok.
Works like a charm!
Impeccable service worthy of German organization Perfect repair
Automatically translated · Original: French
Everything went well, I will gladly recommend them.
Automatically translated · Original: German
Everything went great, nothing better than the cloning of our old control unit could have happened to us
Automatically translated · Original: German
What is a Mercedes-Benz SLK-Class R171 Convertible airbag control unit?
The Mercedes-Benz SLK-Class R171 Convertible airbag control unit is the central control unit for occupant safety in your vehicle. It detects impact events, triggers airbags and belt tensioners in a targeted manner, and stores important crash data. This electronic module is essential for the full functionality of the restraint system and ensures maximum protection in an emergency.
This safety-critical control unit continuously monitors all airbag sensors and circuits. In the event of an impact, it issues precise commands to trigger the passive safety systems.
It thus ensures the rapid and targeted protection of vehicle occupants by activating the airbags and belt tensioners.
Why is the Mercedes-Benz SLK-Class R171 Convertible airbag control unit defective?
A defective Mercedes-Benz SLK-Class R171 Convertible airbag control unit often results from water damage, internal component failures, or software issues, especially after an accident, as crash data is stored in these cases. This causes the airbag warning light to remain permanently illuminated and the system to lose its protective function, making a Mercedes-Benz SLK-Class R171 Convertible airbag control unit repair unavoidable.
Malfunctions can also occur due to aging of the electronics or communication problems in the CAN bus system.
In many cases, the failure can be repaired, especially in cases of communication errors or the deletion of crash data.
Early diagnosis in the workshop is crucial to prevent major damage and ensure safety.
Common error codes for Mercedes-Benz SLK-Class R171 Convertible airbag control unit repair
During Mercedes-Benz SLK-Class R171 Convertible airbag control unit repair, specific error codes may occur that indicate communication problems or internal failures of the control unit itself. These codes are crucial for diagnosis and indicate that the control unit may need to be repaired or replaced to restore full safety.
These error codes are detected by the Mercedes-specific airbag system and can be read in the error memory of the airbag ECU.
They refer explicitly to problems with the control unit and not to external sensors or modules.
- 900E → Control unit communication error → Interruption of the connection with the airbag ECU
- 9014 → Control unit communication error (oscillating) → Temporarily or permanently interrupted connection
- 911B → CAN bus communication error with SRS control unit → Permanent disruption of data transmission
What part numbers are available for the Mercedes-Benz SLK-Class R171 Convertible airbag control unit repair?
Several part numbers are listed for the airbag control unit of the Mercedes-Benz SLK-Class R171 Convertible, including the manufacturer numbers A1718203626 and A1718204126 and the Bosch supplier number 285010422. All of these numbers belong to airbag control units of this model. Comparing the number on your unit before the repair is advisable.
Further manufacturer numbers are A1718202426, A1718203126, A1718205626, 1718206526 and 1718207326. The part number on the label of the control unit can be stated in the repair order. Further matching numbers are listed in the part number list on this page.
Guide
How to create a repair order
4.8
Based on 258 reviews
What our customers say
„Top!“
mirko leistnerlast week„Ok.“
Zsolt Szabó2 weeks ago„Works like a charm!“
Leolylast month„Impeccable service worthy of German organization Perfect repair“
Automatically translated · Original: French
Étienne HUSSONtoday„Everything went well, I will gladly recommend them.“
Automatically translated · Original: German
Georgios Chorosistoday„Everything went great, nothing better than the cloning of our old control unit could have happened to us“
Automatically translated · Original: German
Manuel Wegmanntoday„The website of Airbag24 Airbagsysteme is very well structured and simply explained. I sent my airbag control unit from my Renault Trafic there for repair. I am very satisfied with the telephone contact as well as by mail…“
Automatically translated · Original: German
H. S.2 days ago„Super great! Very fast repair of an airbag control unit of a Fiat Bravo 198. Sent it off on Monday, got it back already repaired by Friday and installed it. Everything works perfectly again. Old reliable car saved again…“
Automatically translated · Original: German
Stephan Plewinsky3 days ago„Well structured website with clear instructions, processing on schedule, punctual delivery. Worked immediately after reinstallation.“
Automatically translated · Original: German
Dieter Hirsch3 days ago„Apart from the price which remains a bit high, but compared to the only replacement solution and the service provided, it's PERFECT. Very good sending and return procedure, and customer contact SUPER, not to mention the…“
Automatically translated · Original: French
patrick taverna4 days ago„Very satisfied great work“
Automatically translated · Original: German
Florian Bickel4 days ago„Airbag control unit was defective..Sent it in and got it back faster than expected.Worked great.Great performance from the Airbag24 Team.Thanks and I will recommend you further.“
Automatically translated · Original: German
Dieter Winkler5 days ago„Top!“
mirko leistnerlast week
