Airbag control unit with part number 0285001279

What does the airbag control unit 0285001279 do?

The 0285001279 is an airbag control unit and controls the restraint system (SRS) of Audi. In an accident it evaluates the signals from the crash sensors and determines which airbags and seatbelt pretensioners are triggered.

In operation, the unit checks the function of the entire system. If it finds a fault, the airbag warning light in the instrument cluster lights up so that you notice the disruption.

If an accident occurs, the unit stores the crash data and then remains locked. This is not a malfunction but part of its task in the restraint system.

Why does the control unit 0285001279 fail?

Most often the cause is crash data stored after an accident, even if no airbag has triggered. Added to this are ageing electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or jump-starting.

A normal diagnostic tool cannot erase this crash data, so the message remains. The cause lies in this memory and not in how the vehicle is operated.

The other causes concern contacts and components that become more sensitive over time. Airbag24 erases the crash data during the repair and checks the electronics for these points.

How can you tell that the 0285001279 is defective?

The airbag warning light in the instrument cluster lights up permanently or flickers intermittently. In addition, a fault message appears, the diagnostic tool gets no connection to the control unit, and the fault memory cannot be cleared. In an emergency, the airbags and seatbelt pretensioners may then fail to deploy.

You do not have to see all of these signs at once to take the warning light seriously. The light signals the condition even when the vehicle otherwise behaves normally.

Which vehicles is the 0285001279 fitted in?

The 0285001279 is fitted in these vehicles: Audi TT 8N9 Roadster (1999-2000).

We list the known models for this part number here:

• Audi TT 8N9 Roadster (1999-2000)

Compare the part number on the label of the unit with this page. This only confirms that you have the right unit. Whether the control unit itself is defective or whether a plug or cable is the cause only becomes apparent when the fault memory is read out. Have it read out before removal.

For the same vehicles, we also repair control units with the part numbers 8N0 959 655 B, 8N0 959 655 D, 8N0959655A, 8N8 909 601.

How does the repair of the 0285001279 work?

Have the fault memory read out and enclose the log, then disconnect the battery, and only then remove the control unit. Next, create a repair order online and send the unit in well packed. Processing at Airbag24 usually takes 3–4 working days.

At Airbag24 the unit is checked on the test bench, and defective components are replaced. The stored crash data is erased, and then the function test follows. Your repaired unit then goes back to you.

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 0285001279 get to Airbag24?

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

Enclose the printed repair order in the parcel and pack the control unit shock-resistant so that it stays protected on the way.