Airbag control unit with part number 985108328R

What does the airbag control unit 985108328R do?

The airbag control unit 985108328R is the central control unit of the restraint system (SRS) for Renault. It evaluates the signals from the crash sensors, decides within milliseconds in an accident which airbags and seatbelt pretensioners to trigger, and monitors the system continuously. It shows reported faults via the airbag warning light.

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

The airbag warning light on the instrument cluster tells you when the system detects a fault.

Why does the control unit 985108328R fail?

Stored crash data is the most common cause, even if no airbag has deployed; a normal diagnostic tool cannot erase it. Other causes include aged electronic components, cold solder joints, moisture and corrosion at plug connectors, and voltage spikes.

Airbag24 erases the crash data during the repair of control unit 985108328R. The other causes at a glance:

• aged electronic components
• cold solder joints
• moisture and corrosion at plug connectors
• voltage spikes, for example from a weak battery or a jump start

How can you tell that the 985108328R is defective?

A defect in control unit 985108328R shows up as the airbag warning light on the instrument cluster lighting up permanently or intermittently. A fault message on the instrument cluster and a fault memory that cannot be cleared may also appear.

These signs at a glance:

• airbag warning light on the instrument cluster lights up permanently or intermittently
• fault message on the instrument cluster
• diagnostic tool gets no connection to the control unit
• fault memory cannot be cleared

In that case, airbags and seatbelt pretensioners may not deploy in an emergency. Have the system checked promptly.

Which vehicles is the 985108328R fitted in?

Control unit 985108328R is fitted in these vehicles: Renault Mégane III (2008-2016). To see whether your car is one of them, check against the vehicles named.

These vehicles are listed in detail:

• Renault Mégane III (2008-2016)

These steps will help you proceed. Compare the part number on the label of the removed unit with this page; this only confirms that it is the correct unit. Also have the fault memory read out beforehand, because only that shows whether the control unit is defective or a plug or cable is the cause.

For the same vehicles, we also repair control units with the part numbers 285581365R, 8200962388, 985105478R.

How does the repair of the 985108328R work?

First, have the fault memory read out and attach the log, then disconnect the battery and only then remove control unit 985108328R. Then create a repair order online and send in the well-packed unit. Airbag24 checks the unit on the test bench, replaces defective components, erases stored crash data and carries out a function test; processing usually takes 3–4 working days.

For safety reasons, the order is mandatory: first the readout, then disconnecting the battery, and finally removal.

Processing at Airbag24 covers checking, repairing and testing the unit. Afterwards, your own unit is returned 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 985108328R get to Airbag24?

You send control unit 985108328R in as a parcel, or you book a UPS collection for an extra charge. After the repair, Airbag24 sends it back by UPS.

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