Airbag control unit with part number 0285014306

What does the airbag control unit 0285014306 do?

Control unit 0285014306 is the central control unit of the restraint system (SRS) for Mercedes-Benz. It evaluates the signals from the crash sensors, decides in a crash within milliseconds which airbags and seatbelt pretensioners to trigger, and monitors the system continuously. If it detects a fault, the airbag warning light comes on.

The control unit works in the background and constantly checks whether sensors and wiring are connected correctly. If it finds a deviation, it records it in the fault memory.

After an accident the unit stores crash data and locks itself. Only the repair lifts the lock.

Why does the control unit 0285014306 fail?

The most common cause is crash data that remains stored after an accident, even without a triggered airbag. Further causes are aging electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or a jump start.

A normal diagnostic tool cannot erase crash data. Airbag24 erases it during the repair.

The remaining causes develop rather slowly. Solder joints lose stability over time, and moisture attacks plug connections. Voltage spikes stress the electronics when the battery is weakening or the vehicle is started with external power.

How can you tell that the 0285014306 is defective?

The airbag warning light in the instrument cluster lights up permanently or intermittently when the 0285014306 has a fault. An error message may appear alongside it, the diagnostic tool finds no connection to the control unit, or the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then fail to deploy.

The light reports the finding immediately and is therefore the most important everyday warning sign. Even when the vehicle drives normally, a fault may be present.

Please have the warning checked promptly, rather than continuing to drive with the light on.

Which vehicles is the 0285014306 fitted in?

Control unit 0285014306 is installed in these vehicles: Mercedes-Benz X-Class X470 Pick-up (2017-2020). This assignment is based on the data we hold for this number.

The following vehicles are affected in detail:

• Mercedes-Benz X-Class X470 Pick-up (2017-2020)

First compare the part number on the label of the removed unit with this page. That only ensures that you have the correct unit. Also have the fault memory read out, because only this result shows whether the control unit is defective or a cable is the cause.

For the same vehicles, we also repair control units with the part numbers 98820 5XA0A, 98820 5XA0B, 98820-5XB0A, A470 900 07 03.

How does the repair of the 0285014306 work?

First read out the fault memory and attach the log to the unit. Then disconnect the battery, and only afterwards remove the control unit. Finally, create a repair order online and send the unit in well packed.

Airbag24 checks the unit on the test bench, repairs defective components, erases stored crash data and carries out a functional test. Processing usually takes 3–4 working days, after which 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 0285014306 get to Airbag24?

You send the unit as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 returns control unit 0285014306 by UPS.

Put the printed repair order into the parcel and pack the unit shockproof.