Airbag control unit with part number 985108019R

What does the airbag control unit 985108019R do?

The airbag control unit 985108019R is the control unit of the SRS restraint system of Renault. It processes the sensor signals and decides in milliseconds which airbags and seatbelt pretensioners are triggered.

The manufacturer's number Bosch 0285015832 is additionally printed on the housing. The device monitors the system continuously and reports faults via the airbag warning light. After an accident it stores crash data and then locks itself.

Why does the control unit 985108019R fail?

The most common cause on the 985108019R is stored crash data after an accident, even if no airbag has deployed. Other causes are aged electronic components, cold solder joints, moisture and corrosion, and voltage spikes.

Crash data cannot be erased with an ordinary diagnostic tool. Airbag24 erases it as part of the repair. The remaining causes in brief:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connections
• voltage spikes in the vehicle electrical system

How can you tell that the 985108019R is defective?

On a defective 985108019R, the airbag warning light in the instrument cluster stays on permanently or intermittently. Fault messages accompany it, the diagnostic tool finds no connection to the control unit, and the fault memory cannot be cleared.

This warning is serious, because airbags and seatbelt pretensioners may not deploy in an emergency. Therefore have the cause checked without delay.

In which vehicles is the 985108019R fitted?

The 985108019R is fitted in these vehicles: Renault Arkana I (from 2019).

A list of the models follows:

• Renault Arkana I (from 2019)

The label comparison of the part number is made on the removed device. It only clarifies whether the device fits. Also have the fault memory read out beforehand. The log shows whether the control unit is defective or whether plugs and cables are the cause.

For the same vehicles, we also repair control units with the part numbers 285015832, 285A40674R, 285A49105R, 5D3EEF4828, 985103085R.

How does the repair of the 985108019R work?

First you read out the fault memory and attach the log. Then you disconnect the battery, remove the 985108019R and create a repair order online. Afterwards pack the device well and send it in.

This order serves safety: the control unit may only be removed once the memory has been read out and the battery has been disconnected.

At Airbag24 the submitted device is examined on the test bench, and defective components are replaced. The team then erases the stored crash data and carries out a function test. For checking, repairing and testing at Airbag24, allow 3–4 working days as a rule. 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 985108019R get to Airbag24?

You can send the 985108019R in as a parcel or book a UPS collection for an extra charge. After the repair Airbag24 sends it back to you by UPS.

The printed repair order belongs in the parcel. Pack the device shockproof so that it arrives undamaged.