Airbag control unit with part number 8200108371

What does the airbag control unit 8200108371 do?

The airbag control unit 8200108371 is the control centre of the restraint system (SRS) at Renault. It analyses the messages from the crash sensors, decides within milliseconds in a crash whether to trigger, and displays faults via the airbag warning light.

During operation it checks connections and components continuously. Faults it finds are stored in the fault memory, which a diagnosis can read out later.

After an accident the unit writes crash data and locks itself.

Why does the control unit 8200108371 fail?

The most common cause is crash data written after an accident, even if no airbag was triggered. Other causes include ageing electronic components, cold solder joints, moisture and corrosion at plug connections, and voltage spikes, for example from a weak battery or jump-starting.

Crash data cannot be erased with a normal diagnostic tool. Airbag24 takes on this task during the repair, so the unit comes back without it.

Ageing components and moisture change the electronics gradually, whereas voltage spikes act on the circuits suddenly. Both can impair the function.

How can you tell that the 8200108371 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently, a fault message appears in the instrument cluster, and the diagnostic tool receives no connection to the control unit. The fault memory also cannot be cleared, and airbags and seatbelt pretensioners may not trigger in an emergency.

As soon as the warning light comes on, a prompt check is advisable. The light shows the fault and therefore reveals that the system has detected an error.

A warning that is ignored for weeks remains a risk to function in an emergency.

Which vehicles is the 8200108371 fitted in?

The control unit 8200108371 is installed at Renault in these vehicles: Renault Laguna II (2001-2007).

These models are part of this:

• Renault Laguna II (2001-2007)

Before you remove the unit, check two things. Comparing the part number on the label with this page only confirms that you have the correct unit. The fault memory, on the other hand, shows whether the control unit itself is defective or whether a plug or cable is causing the fault, which is why you should have it read out in advance.

For the same vehicles, we also repair control units with the part numbers 603947700, 7700429613, 8200108370, 8200108370A, 8200412021A.

How does the repair of the 8200108371 work?

Processing at Airbag24 usually takes 3–4 working days. This period covers inspection, repair and the function test.

Your own steps begin with reading out the fault memory, whose log you enclose with the unit. Then you disconnect the battery and only then remove the control unit. Online you create the repair order; afterwards you pack the unit carefully.

At Airbag24 the unit is examined on the test bench, defective components are replaced, the crash data is erased and a function test is carried out. After that 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 8200108371 get to Airbag24?

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

Enclose the printed repair order and pack the unit shockproof.