Airbag control unit with part number A2469006118

What does the airbag control unit A2469006118 do?

The airbag control unit A2469006118 coordinates the restraint system (SRS) of Mercedes-Benz. It evaluates the signals from the crash sensors and, in a crash, decides within milliseconds which airbags and seatbelt pretensioners are triggered. It monitors the system continuously.

The manufacturer's number Bosch 0285013856 is also printed on the housing.

The unit reports faults via the airbag warning light. After a crash, it stores crash data and locks itself.

Why does the control unit A2469006118 fail?

The most common cause is crash data after an accident, even if no airbag was triggered; a normal diagnostic tool cannot erase it. Other causes are ageing components, cold solder joints, moisture and corrosion on plug connections, and voltage spikes.

Crash data is stored in the unit and remains there until Airbag24 removes it during the repair.

Ageing electronics can cause faults, and cold solder joints can lose contact. Moisture and corrosion on the plug connections attack the contacts.

Voltage spikes, for example from a weak battery or jump-starting, place additional stress on the electronics.

How can you tell that the A2469006118 is defective?

An airbag warning light in the instrument cluster that stays on permanently or intermittently, a fault message in the instrument cluster, a diagnostic tool that cannot establish a connection to the control unit, and a fault memory that cannot be cleared all point to a defect.

If there is a defect, the airbags and seatbelt pretensioners may not trigger in an emergency. That is why the warning light must be taken seriously.

When these signs appear, have the fault memory read out promptly so the cause can be narrowed down.

Which vehicles is the A2469006118 fitted in?

This information refers to part number A2469006118. The airbag control unit A2469006118 is fitted in these vehicles: Mercedes-Benz B-Class W246 (2011-2018).

The matching vehicle is listed in this overview:

• Mercedes-Benz B-Class W246 (2011-2018)

Comparing the part number on the label of the removed unit with this page only shows that you have the right unit. Whether the control unit is faulty, or a plug or cable is responsible, is established by the fault memory. So have it read out in advance.

For the same vehicles, we also repair control units with the part numbers A 246 900 07 09, A246 900 75 02, A2469006018.

How does the repair of the A2469006118 work?

First have the fault memory read out and enclose the log. Then disconnect the battery and only then remove the control unit. Next, create a repair order online and send the well-packed unit. Processing at Airbag24 takes 3–4 working days for checking, repairing and testing.

Airbag24 checks the unit on the test bench, replaces defective components, erases the stored crash data and carries out a function test. The repaired unit then 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 A2469006118 get to Airbag24?

The unit goes to Airbag24 as a parcel, or you book a UPS collection for an extra charge. After the repair, you receive it back by UPS. The printed repair order goes into the parcel, and the unit must be packed shockproof.

Shockproof packaging prevents the housing from being damaged in transit.