Airbag control unit with part number 9119058-01

What does the airbag control unit 9119058-01 do?

The airbag control unit 9119058-01 controls the SRS restraint system in vehicles from BMW. It processes the signals from the crash sensors and decides in a collision which airbags and seatbelt pretensioners are triggered.

The manufacturer's number Bosch 0285001533 is also printed on the housing. During operation the unit monitors the entire system and reports faults via the airbag warning light.

After an accident the control unit stores crash data and locks itself.

Why does the control unit 9119058-01 fail?

Stored crash data are the most common cause, even when no airbag was triggered; a standard diagnostic tool does not erase them. Further causes are aged electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or jump-starting.

If no airbag was triggered, this does not mean that no data were stored.

Which of these further causes applies to your unit can only be clarified by the examination.

How can you tell that the 9119058-01 is defective?

A defect shows up mainly at the airbag warning light in the instrument cluster and in error messages. In an emergency, airbags and seatbelt pretensioners may then not be able to trigger.

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

The light shows the fault and is therefore the first reason to have the fault memory read out.

Which vehicles is the 9119058-01 fitted in?

The list below names the vehicles with this control unit. The control unit 9119058-01 is fitted in these vehicles: BMW 3 Series E90 LCI Saloon (2008-2011), E90 Saloon (2005-2008), E91 Touring (2005-2008) and E91 LCI Touring (2008-2012).

In detail, these vehicles appear on the list:

• BMW 3 Series E90 LCI Saloon (2008-2011)
• BMW 3 Series E90 Saloon (2005-2008)
• BMW 3 Series E91 Touring (2005-2008)
• BMW 3 Series E91 LCI Touring (2008-2012)

Comparing the number on the label of the removed unit with this page makes sure you have the right unit. It says nothing about a defect, though. Whether the control unit is defective or a connector or cable is the cause is shown only by the fault memory read out beforehand.

For the same vehicles, we also repair control units with the part numbers 285010062, 285010064, 285010066, 285010070, 31918443202L, 65.77-9119058-01.

How does the repair of the 9119058-01 work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only afterwards remove the control unit. Then create a repair order online and send the well-packed unit in.

Airbag24 checks the submitted unit on the test bench and replaces defective components. Stored crash data are erased, followed by a function test. Processing at Airbag24 usually takes 3–4 working days.

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 9119058-01 get to Airbag24?

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

Put the printed repair order into the parcel and pack the control unit shock-proof.