Airbag control unit with part number 8200505179

What does the airbag control unit 8200505179 do?

The airbag control unit 8200505179 is the central control unit of the SRS in Renault vehicles. It evaluates the signals of the crash sensors and decides in an accident, within milliseconds, whether airbags and seatbelt pretensioners are triggered.

In addition it monitors the system components continuously and reports faults via the airbag warning light.

The manufacturer number Bosch 0285001817 is also printed on the housing. After an accident the unit stores crash data and locks itself.

Why does the control unit 8200505179 fail?

The most common cause for the 8200505179 is crash data stored after an accident, even if no airbag was triggered. Aged components, cold solder joints, moisture and corrosion on plug connectors, and voltage spikes are further causes.

A normal diagnostic tool cannot erase the crash data. Airbag24 removes it during the repair.

Ageing electronics and cold solder joints can impair function, independently of an accident.

Moisture and corrosion on plug connectors worsen the contact, while voltage spikes load the electronics. An exact cause can only be determined by a check.

How can you tell that the 8200505179 is defective?

An airbag warning light that stays on permanently or intermittently, a fault message in the instrument cluster, a missing connection between the diagnostic tool and the control unit, and a fault memory that cannot be cleared indicate a defect on the 8200505179.

Airbags and seatbelt pretensioners may then fail to trigger in an emergency, so a prompt check is important.

The fault memory provides the basis for further investigation when these signs appear.

Which vehicles is the 8200505179 fitted in?

The airbag control unit 8200505179 is installed in these vehicles: Renault Modus I (2004-2012).

The models for which this part number is recorded are listed here.

• Renault Modus I (2004-2012)

Comparing the part number on the label of the removed unit with this page only confirms that you have the right unit. Have the fault memory read out beforehand; only then does it show 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 285001509, 8200463297, 8200502126, 8200533970, 8200962347, 8200963406.

How does the repair of the 8200505179 work?

Processing at Airbag24 usually takes 3–4 working days. Beforehand, have the fault memory read out and attach the log, then disconnect the battery and only then remove the control unit 8200505179. Afterwards create a repair order online and send the unit in well packed.

At Airbag24 we check the unit on the test bench, repair defective components, erase the crash data and run a functional test. Afterwards your own unit comes back to you.

The stated time refers exclusively to this work at Airbag24.

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 8200505179 get to Airbag24?

You send the control unit 8200505179 as a parcel or 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 shockproof.