Airbag control unit with part number 110406240/01

What does the airbag control unit 110406240/01 do?

The airbag control unit 110406240/01 processes, for MG, the signals from the crash sensors. In an accident it decides within milliseconds which airbags and seatbelt pretensioners are triggered.

It is the central control unit of the SRS and works continuously in the background. If it detects a fault, the airbag warning light in the instrument cluster comes on.

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

Why does the control unit 110406240/01 fail?

The 110406240/01 most often fails because of crash data stored after an accident, although no airbag fired. Other causes are ageing components, cold solder joints, moisture and corrosion at connectors, and voltage spikes.

Crash data cannot be deleted with the usual tools. Airbag24 takes care of removing it as part of the repair.

Ageing components and cold solder joints develop over a longer period. Moisture and corrosion affect plug connections, while voltage spikes arise, for example, from a weak battery or from jump-starting.

Which of these causes is actually present is determined by the examination.

How can you tell that the 110406240/01 is defective?

A defect in the 110406240/01 shows up through the airbag warning light in the instrument cluster, through error messages there, through a failed connection to the diagnostic tool, or through a fault memory that cannot be cleared.

• Airbag warning light in the instrument cluster stays on permanently
• Airbag warning light in the instrument cluster lights up intermittently
• Error message in the instrument cluster
• No connection between the diagnostic tool and the control unit
• Fault memory cannot be cleared

When it matters, it is not certain that airbags and seatbelt pretensioners will deploy.

The cause is only clarified by an examination.

Which vehicles is the 110406240/01 fitted in?

The 110406240/01 is fitted in these vehicles: MG 4 1st generation (from 2022).

The list shows the vehicles listed on this page for this control unit.

• MG 4 1st generation (from 2022)

Comparing the number on the label of the removed unit with this page only confirms that you have the correct control unit in front of you. Whether the control unit is defective or a plug or cable is causing the fault is shown only by the fault memory, which you should have read out beforehand.

How does the repair of the 110406240/01 work?

Have the fault memory of the 110406240/01 read out before anything else. Then disconnect the battery, remove the control unit and create a repair order online. Checking, repairing and testing at Airbag24 usually take 3–4 working days.

Put the log into the parcel. Pack the control unit shock-proof and send it in.

Airbag24 first runs the unit through a check, followed by replacing defective components, removing the crash data and a functional test. Your own unit is then sent back. 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 110406240/01 get to Airbag24?

A parcel containing the 110406240/01 is enough to get it to Airbag24; alternatively, a UPS collection is available for an extra charge. Returns are made by UPS.

The printed repair order goes into the parcel, along with shock-proof packaging.