Airbag control unit with part number 65.77-9461919-01

What does the airbag control unit 65.77-9461919-01 do?

The airbag control unit 65.77-9461919-01 coordinates the restraint system (SRS) of BMW. It evaluates the crash sensors and, in an accident, determines within milliseconds which airbags and seatbelt pretensioners are triggered.

In addition to the part number, the housing also carries the manufacturer number Bosch 0285015095.

The system monitors the control unit continuously, and faults appear via the airbag warning light. After an accident it stores crash data and locks itself.

Why does the control unit 65.77-9461919-01 fail?

The most common cause is crash data stored after an accident, even when no airbag was triggered. Other possible causes include aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes.

A normal diagnostic tool cannot erase this crash data. Airbag24 erases it as part of the repair. Voltage spikes can arise, for example, from a weak battery or jump-starting.

How can you tell that the 65.77-9461919-01 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently, and the instrument cluster shows an error message. In addition, the diagnostic tool cannot establish a connection to the control unit, and the fault memory cannot be cleared.

As long as this finding persists, airbags and seatbelt pretensioners may not trigger in an emergency. A prompt check is therefore advisable.

Which vehicles is the 65.77-9461919-01 fitted in?

The control unit 65.77-9461919-01 is fitted in these vehicles: BMW 1 Series F21 3-door (2012-2019) and F20 5-door (2011-2019); BMW 3 Series F31 LCI Touring (2015-2019), F31 Touring (2012-2015), F34 Gran Turismo (2013-2019), F30 LCI Saloon (2015-2019) and F30 Saloon (2011-2015).

These vehicles are stored for this part number:

• BMW 1 Series F21 3-door (2012-2019)
• BMW 3 Series F31 LCI Touring (2015-2019)
• BMW 3 Series F31 Touring (2012-2015)
• BMW 3 Series F34 Gran Turismo (2013-2019)
• BMW 3 Series F30 LCI Saloon (2015-2019)
• BMW 3 Series F30 Saloon (2011-2015)
• BMW 1 Series F20 5-door (2011-2019)

Comparing the part number on the label of the removed unit with this page only confirms that you have the right unit. Have the fault memory read out beforehand. Only this result shows whether the control unit itself is defective or whether a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 0 285 011 110, 0 285 011 137 Bosch, 0 285 011 730 Bosch, 0285011730, 65 77 9 266 328, 65 77 9 267 213.

How does the repair of the 65.77-9461919-01 work?

First have the fault memory read out, attach the log, disconnect the battery and remove the control unit. Then create the repair order online and send the unit in. Processing at Airbag24 usually takes 3–4 working days.

Airbag24 tests the unit on the test bench, repairs defective components, erases stored crash data and runs a function test. Afterwards your own unit is returned to you. The time frame refers only to this work at Airbag24.

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 65.77-9461919-01 get to Airbag24?

You send the control unit as a package, or book a UPS collection for an extra charge. After the repair, Airbag24 returns it by UPS.

The printed repair order goes into the package, and the unit must be packed shockproof.