Airbag control unit with part number 985108115R

What is the function of the airbag control unit 985108115R?

The airbag control unit 985108115R from Continental is the central control module for the occupant restraint system (SRS) in Renault Clio IV and V models. It processes signals from crash sensors, deploys airbags and seatbelt pretensioners in the event of a collision, and stores relevant crash data in its internal memory.

As an OEM part from Continental, this module is precisely tailored to the vehicle architecture of the Renault Clio. It continuously monitors all safety‑related components, from front and side impact sensors to individual airbag modules and seatbelt pretensioners.

In the event of a collision, the control unit determines within milliseconds which restraint systems need to be activated to provide optimal protection for occupants. This event data is securely stored in non‑volatile memory.

Why does the control unit 985108115R fail?

A failure of the control unit 985108115R is most commonly caused by stored crash data following an accident, which locks the system. Other causes include internal electronic damage due to moisture or overvoltage, as well as defects in wiring, connectors, or CAN‑bus communication errors.

After an airbag deployment, the unit blocks access to certain functions and must be professionally reset. Simply clearing the fault memory via a diagnostic tool is not sufficient in such cases.

Even without an accident, the sensitive electronics inside can suffer damage. Common causes include broken wires, corroded connectors, or internal component failures that may lead to issues with the power supply.

How do you recognize a defect in the 985108115R?

A defect in the control unit 985108115R primarily manifests as the airbag warning light (SRS light) remaining constantly illuminated on the instrument cluster. Often, the unit can no longer be accessed by a diagnostic tool, or internal error codes such as 65535, 93F9, or B1000 are displayed.

The illuminated SRS warning light—often even without a prior accident—is the clearest indication of a malfunction in the airbag system. In this state, the entire system is typically inoperable.

In the workshop, it is often evident that no communication can be established with the control unit via the OBD interface, pointing to a serious internal fault.

Additional specific symptoms may include complete system failure when the unit heats up, or a malfunctioning clock on the instrument cluster. Importantly, before removal, have a qualified workshop verify whether the control unit is indeed the source of the problem.

In which vehicles is the control unit 985108115R installed?

The part number 985108115R is used as an original Continental component specifically in Renault vehicles. Its primary application covers the Renault Clio IV and Renault Clio V model series, where it manages the entire airbag system.

At Airbag24, we repair the control unit with part number 985108115R for the following models and series:

Renault: Clio IV (model years 2012–2020), Clio V (from model year 2019 onward)

How is the 985108115R professionally repaired?

Professional repair of the 985108115R involves precise diagnostics, elimination of the root cause at the component level, and deletion of stored crash data. Defective components are replaced with genuine parts, and the software is restored to factory settings, followed by a final functional test. We offer 2 years' statutory liability for defects on every repair.

After submission to Airbag24, the control unit undergoes a standardized process. First, the fault memory is read out, and the unit undergoes an initial inspection to confirm reported symptoms.

This is followed by the actual restoration. Technicians open the unit, replace faulty electronic components, resolve software issues, and completely erase crash data stored after an accident.

Following repair, the control unit is tested on a bench to ensure flawless operation. After reinstallation in the vehicle, only the vehicle’s fault memory needs to be cleared.