Airbag control unit with part number 65.77-9247383-01

What does the airbag control unit 65.77-9247383-01 do?

The airbag control unit 65.77-9247383-01 controls the restraint system (SRS) in BMW. It evaluates the crash sensors, decides in a crash within milliseconds about airbags and seatbelt pretensioners, and reports faults via the airbag warning light.

While driving, it checks the entire system. Faults found are stored in the fault memory. After an accident the unit stores crash data and locks itself.

The unit thus combines measurement, decision-making and monitoring.

Why does the control unit 65.77-9247383-01 fail?

The most common cause is crash data after an accident, even without an airbag being triggered, which an ordinary diagnostic tool cannot erase. Other causes are ageing electronics, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

Stored crash data does not have to indicate damage. Airbag24 deletes it during the repair.

Further causes at a glance:

• ageing electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes, for example from a weak battery or jump-starting

How can you tell that the 65.77-9247383-01 is defective?

A defect becomes visible through the airbag warning light in the instrument cluster, which lights up permanently or intermittently. Fault messages and communication problems with the diagnostic tool are also indications.

These signs occur:

• Airbag warning light on permanently or intermittently
• Fault message in the instrument cluster
• Diagnostic tool gets no connection to the control unit
• Fault memory cannot be cleared

In an emergency, the airbags and seatbelt pretensioners may then not be triggered, so the warning should be taken seriously.

Which vehicles is the 65.77-9247383-01 fitted in?

The control unit 65.77-9247383-01 is fitted in these vehicles: BMW M6 F06 Gran Coupé (2013-2018).

The assignment to vehicles is shown in this list:

• BMW M6 F06 Gran Coupé (2013-2018)

Compare the part number on the label with this page. That shows that you have the correct unit, nothing more. The fault memory read out beforehand, on the other hand, reveals whether the control unit is defective or whether a line or a plug is causing the fault.

For the same vehicles, we also repair control units with the part numbers 6577-7911607, 65776807634, 65776808580, 65776837359, 65779240238, 65779243272.

How does the repair of the 65.77-9247383-01 work?

First have the fault memory read out and enclose the log, then disconnect the battery and only then remove the control unit. Create the repair order online and pack the unit well. At Airbag24, processing usually takes 3–4 working days.

Airbag24 checks the unit on the test bench, replaces faulty components, deletes stored crash data and carries out a function test. Afterwards your own unit 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 65.77-9247383-01 get to Airbag24?

The control unit travels to Airbag24 as a parcel, or you book a UPS collection for an extra charge. The return shipment after the repair is made by UPS.

Enclose the printed repair order with the parcel, and the unit must be packed shock-proof.