Airbag control unit with part number 8200687758

What does the airbag control unit 8200687758 do?

The airbag control unit 8200687758 controls the restraint system (SRS) in Renault. It evaluates the signals from the crash sensors, decides in an accident whether airbags and seatbelt pretensioners are triggered, and monitors the system continuously. After an accident it stores crash data and locks itself.

The decision is made within milliseconds, which is why the unit works with fixed sequences and constant checking. Every fault it finds is recorded in the fault memory.

Why does the control unit 8200687758 fail?

The most common cause with the 8200687758 is crash data stored after an accident, which a normal diagnostic tool cannot delete. Aged components, corrosion at plug connectors and voltage spikes are also involved.

Besides the crash data, these causes come into consideration:

• aged components on the electronics board
• moisture and corrosion at plugs
• cold solder joints
• voltage spikes, for example from a weak battery or jump-starting

How can you tell that the 8200687758 is defective?

The airbag warning light in the instrument cluster stays on permanently or intermittently, and the instrument cluster displays a fault message. In addition, the diagnostic tool finds no connection to the 8200687758, and the fault memory cannot be cleared. In an emergency, airbags and seatbelt pretensioners may then not trigger.

When the ignition is switched on, the warning light lights up briefly for a self-check. If it stays on afterwards or comes back while driving, this points to a fault in the restraint system.

Which vehicles is the 8200687758 fitted in?

The 8200687758 was fitted in these vehicles: Renault Espace IV (2002-2014).

The assignment by part number produces this list:

• Renault Espace IV (2002-2014)

Comparing the part number on the label of the removed unit with this page only confirms the identity of the unit. More important is the fault memory: it shows whether the control unit is defective or whether a connector or cable is the cause. Therefore have it read out before removal.

For the same vehicles, we also repair control units with the part numbers 603785400, 603785500, 605487700, 8200313338, 8200343319, 8200343319A.

How does the repair of the 8200687758 work?

Have the fault memory read out first and attach the log, and only then disconnect the battery and remove the 8200687758. Then send the unit in well packed, together with a repair order created online. Processing at Airbag24 normally takes 3–4 working days.

At Airbag24 the unit is checked on the test bench, defective components are repaired and stored crash data is deleted. A function test follows, and then your own unit goes back to you. The sequence at the start serves safety alone.

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 8200687758 get to Airbag24?

You can send the control unit 8200687758 in as a parcel or have it collected by UPS for an extra charge. After the repair, Airbag24 sends it back to you by UPS.

Put the printed repair order into the parcel and pack the unit shock-proof, so it is well protected in transit.