Airbag control unit with part number 8F0959655F

What does the airbag control unit 8F0959655F do?

The airbag control unit 8F0959655F monitors and controls the restraint system (SRS) in Audi. From the signals of the crash sensors, it determines whether airbags and seatbelt pretensioners must deploy, within milliseconds.

In operation, it checks the system continuously and shows faults via the airbag warning light in the instrument cluster.

After a crash, the unit stores crash data and locks itself.

Why does the control unit 8F0959655F fail?

The most common cause is crash data stored after an accident, even if no airbag has deployed; with this control unit, erasing it is often not possible. If you want it erased, contact Airbag24 briefly before sending the unit in. Other causes include aged components, cold solder joints, moisture at plug connectors and voltage spikes.

Crash data remains in the unit's memory unless it is removed in a targeted way.

The other causes mainly affect the electronics themselves: ageing, cold solder joints and moisture at the contacts. Voltage spikes occur, for example, with a weak battery or when starting with external power.

How can you tell that the 8F0959655F is defective?

A defect shows up as the airbag warning light in the instrument cluster, as error messages in the instrument cluster, and as a diagnostic tool that cannot connect.

These signs occur individually or together:

• The airbag warning light stays on permanently
• The airbag warning light stays on only intermittently
• An error message appears in the instrument cluster
• The fault memory cannot be cleared

In the event of a defect, airbags and seatbelt pretensioners may fail to deploy in an emergency. Have the warning checked promptly.

Which vehicles is the 8F0959655F fitted in?

The control unit 8F0959655F is fitted in these vehicles: Audi A5 8F Convertible (2007-2011) and 8F Convertible Facelift (2011-2016).

The list shows the vehicles that Airbag24 has recorded for this part number.

• Audi A5 8F Convertible (2007-2011)
• Audi A5 8F Convertible Facelift (2011-2016)

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 out, because only that result shows whether the control unit is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 8F0 959 655 D, 8F0959655A, 8F0959655A000, 8F0959655AZ04, 8F0959655C, 8F0959655E.

How does the repair of the 8F0959655F work?

First, have the fault memory read out and enclose the log, then disconnect the battery and remove the control unit. Processing at Airbag24 usually takes 3–4 working days.

Then create the repair order online and send the unit in, well packaged. Airbag24 checks it on the test bench, repairs defective components, carries out a function test. After that, you receive your unit back.

If you want the crash data erased, 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 8F0959655F get to Airbag24?

The unit reaches Airbag24 either as a parcel or through a UPS collection for an extra charge. The return after the repair is also made by UPS.

Place the printed repair order in the parcel and pack the unit shock-resistant.