Airbag control unit with part number 98 237 418 80

What is the function of the airbag control unit 98 237 418 80?

The airbag control unit 98 237 418 80 from Continental is the central control module for the occupant safety system (SRS). It processes data from crash sensors and determines whether to deploy airbags and seatbelt pretensioners. Inside, an SPC560P50 microcontroller handles complex data processing.

This unit continuously monitors all components of passive vehicle safety, from front and side impact sensors to seatbelt pretensioners and individual airbag modules. It ensures the entire system remains operational and logs any malfunctions.

Due to its safety-critical role, accurate identification before repair is essential. Therefore, carefully check the nameplate on the housing for alternative designations such as A3C05041300 or A2C15940304 to ensure proper matching.

What defects occur in the 98 237 418 80 control unit?

A common reason for repair is the storage of crash data after a collision, which locks the module. Similarly, hardware defects—such as faulty SMD components, power supply issues, or problems with CAN/LIN transceivers—can cause failures. Internal communication errors, indicated by codes like B1000, are also well-known.

Following a collision, the control unit records what’s known as a “crash event.” This lock is permanent and prevents reuse of the module until the data has been professionally erased by a certified workshop and the device reset. As a result, the airbag warning light remains illuminated.

Physical damage to the circuit board is another major cause of failure. Moisture, aging, or vibrations can harm components such as voltage regulators, capacitors, or the CAN transceivers responsible for vehicle communication, thereby disabling the entire control unit.

How do you recognize a defect in the 98 237 418 80?

The most obvious symptom is the permanently lit airbag warning light (SRS symbol) on the instrument cluster. Often, the control unit can no longer be read by a diagnostic tool (communication failure). Additionally, error memory entries such as B1000, B1506, or indications of communication faults may appear in other control units.

The airbag indicator that fails to turn off after starting the engine is the primary sign for the driver that there’s a problem with the restraint system. While driving is still possible, occupant protection is no longer guaranteed.

In the workshop, a severe defect often manifests as the control unit becoming unresponsive via the OBD interface. This prevents reading the fault memory and points to an internal hardware or communication issue.

In which vehicles is the 98 237 418 80 installed?

The Continental airbag control unit with part number 98 237 418 80 is found in various models from the Stellantis group. At Airbag24, we primarily service this unit for Opel and Citroën vehicles built on a shared platform.

At Airbag24, the 98 237 418 80 control unit is repaired for the following specific models and series:

Opel: Grandland X (model years 2017–2024)

Citroën: C5 Aircross I (model years 2018–2022), as well as the facelifted C5 Aircross I (model years 2022–2025)

How does the repair of the 98 237 418 80 proceed?

After being sent to Airbag24, the control unit undergoes a detailed incoming inspection to verify the fault. This is followed by professional restoration, which includes erasing crash data or repairing individual components. Following a final functional test and with 2 years' statutory liability for defects, the unit is returned to the customer.

For efficient diagnosis, it’s recommended to read the vehicle’s fault memory before removal. An output of the error codes enclosed with the package enables our technicians to analyze the issue more quickly and precisely.

At Airbag24, experienced technicians perform the necessary work after the initial inspection. This may involve replacing defective SMD components, repairing the power supply, or professionally resetting crash data stored after an accident.

Each repaired control unit undergoes a comprehensive functional test on a test bench to ensure proper communication and self‑test routines. All repairs are covered by 2 years' statutory liability for defects.