Airbag control unit with part number 6C0 959 655 AE

What does the airbag control unit 6C0 959 655 AE do?

The airbag control unit 6C0 959 655 AE is the central control unit of the restraint system (SRS) for Volkswagen. It evaluates the signals from the crash sensors, decides on airbags and seatbelt pretensioners in an accident, and monitors the system continuously. After an accident it stores crash data and locks itself.

The control unit indicates faults in the system via the airbag warning light in the instrument cluster. This light is therefore the most important warning signal for you.

The lock after an accident is part of how the system works and affects the entire restraint system. The electronics operate at low voltages and react sensitively to contact problems. Even a poor transition can disturb the evaluation. Clean contacts are therefore part of every fault search.

Why does the control unit 6C0 959 655 AE fail?

The most common cause is the crash data stored after an accident, even if no airbag was triggered. Aged electronic components, cold solder joints, moisture and corrosion at plug connections, as well as voltage spikes also count among the causes.

Crash data cannot be deleted with a normal diagnostic tool. Airbag24 removes it during the repair.

The other causes lie in the electronics and their connections. Moisture and corrosion at plug connections disturb signal transmission, and solder joints can go cold.

How can you tell that the 6C0 959 655 AE is defective?

The airbag warning light in the instrument cluster lights up constantly or intermittently, and a fault message appears in the instrument cluster. In addition the diagnostic tool finds no connection to the control unit.

As long as such a fault exists, airbags and seatbelt pretensioners may fail to trigger in an emergency. The light shows the defect and must therefore be taken seriously.

A fault memory that cannot be cleared also indicates a fault that needs closer checking.

Which vehicles is the 6C0 959 655 AE fitted in?

The control unit 6C0 959 655 AE is fitted in these vehicles: Volkswagen Polo 5 (6C) (2014-2017).

The following vehicles are recorded for this control unit:

• Volkswagen Polo 5 (6C) (2014-2017)

Compare the part number on the label of the removed unit with this page so that you can be sure you have the correct unit. Also have the fault memory read out beforehand. Only this 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 285010527, 6C0 959 655 A, 6C0 959 655 J, 6R0 959 655 K, 6R0959655C.

How does the repair of the 6C0 959 655 AE work?

Processing at Airbag24 usually takes 3–4 working days. Beforehand you have the fault memory read out, enclose the log, disconnect the battery and only then remove the control unit 6C0 959 655 AE.

Then create a repair order online and send the well-packed unit. Airbag24 checks it on the test bench, repairs defective components, deletes stored crash data and carries out a function test.

Afterwards your own unit is returned 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 6C0 959 655 AE get to Airbag24?

You send the control unit 6C0 959 655 AE as a parcel or you book a UPS collection for an extra charge. After the repair Airbag24 sends it back by UPS.

Put the printed repair order into the parcel and pack the unit so that it is shock-resistant.