Airbag control unit with part number A1718205626

What does the airbag control unit A1718205626 do?

The airbag control unit A1718205626 is the central control unit of the restraint system (SRS) for Mercedes-Benz. It analyses the signals from the crash sensors, decides within milliseconds in a crash which airbags and seatbelt pretensioners are triggered, and monitors the system continuously. After a crash it stores crash data and locks itself.

The control unit works in the background and normally goes unnoticed. It reports faults via the airbag warning light in the instrument cluster. In everyday driving you will notice nothing as long as the display stays inconspicuous.

The manufacturer number Bosch 0285010145 is also printed on the housing.

Why does the control unit A1718205626 fail?

The most common cause with the A1718205626: crash data stored after a crash, even if no airbag has triggered. Other causes include aged electronic components, cold solder joints, moisture and corrosion at connectors, and voltage spikes, for example from a weak battery or jump-starting. On this control unit, deleting the crash data is often not possible; if you want it deleted, contact Airbag24 briefly before sending the unit in, and Airbag24 will then check the part number.

• Aged electronic components
• Cold solder joints
• Moisture and corrosion at connectors
• Voltage spikes, for example from a weak battery or jump-starting

Which of these causes applies to your unit cannot be determined from this page alone.

How can you tell that the A1718205626 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently at the A1718205626. In addition there is a fault message in the instrument cluster, no connection to the diagnostic tool, and a fault memory that cannot be cleared.

If you notice any of these signs, the airbags and seatbelt pretensioners may fail to trigger in an emergency.

So have the warning light checked promptly.

Which vehicles is the A1718205626 fitted in?

The control unit A1718205626 is fitted in these vehicles: Mercedes-Benz SLK-Class R171 Convertible (2004-2011). You can tell whether your vehicle is one of them from its make, model and year of manufacture.

These vehicles are listed in detail:

• Mercedes-Benz SLK-Class R171 Convertible (2004-2011)

Compare the part number on the label of the removed unit with this page; this only confirms that it is the right unit. Also have the fault memory read before removal, because only that shows whether the control unit is defective or whether a connector or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 1718206526, 1718207326, 285010422, 500405210770, 500408130020, 500603070328.

How does the repair of the A1718205626 work?

First have the fault memory read out and attach the log to the unit, then disconnect the battery and only then remove the control unit A1718205626. Next, create a repair order online and send the unit in well packed. Airbag24 checks it on the test bench, replaces defective components and carries out a functional test; processing there usually takes 3–4 working days.

Your own unit is then sent back to you.

If you want the crash data deleted, contact Airbag24 briefly before sending the unit in.

Our repairs come with 2 years' statutory liability for defects.

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.

How does the control unit A1718205626 get to Airbag24?

You send the control unit A1718205626 in as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 returns it to you by UPS.

Put the printed repair order into the parcel and pack the unit shockproof. Make sure the unit sits firmly in the parcel and cannot shift.