Airbag control unit with part number 00060560C

What is the function of the airbag control unit 00060560C?

The airbag control unit with part number 00060560C is the central control unit for the occupant safety system (SRS) in the Mercedes-Benz C-Class W202. It analyzes data from crash sensors and, within milliseconds, decides whether to deploy airbags and seatbelt pretensioners to provide optimal protection for occupants in the event of a collision.

As the “brain” of the safety system, it continuously monitors all connected components, such as airbag initiators, seatbelt pretensioners, seat occupancy mats, and impact sensors. In case of a malfunction or after an accident, it deactivates the system and indicates the fault via the SRS warning light on the instrument cluster.

This control unit is technically identical and interchangeable with part numbers 18202126 and 18200826. Proper functionality is critical for vehicle safety and a prerequisite for passing the main inspection (HU).

Why does the control unit 00060560C fail?

The most common cause of failure for the control unit 00060560C is internally stored crash data following an accident that cannot be cleared using workshop diagnostic tools. Other reasons include electronic defects on the circuit board, leading to complete communication failure or internal error messages.

After an airbag deployment, the control unit locks itself for safety reasons. This lock is permanent and can only be lifted through specialized chip-level repair. Simply clearing the fault memory is no longer sufficient.

A further typical source of failure is the breakdown of internal electronic components. This often manifests as the control unit becoming unresponsive via the OBD interface—neither reading fault codes nor enabling communication—which points to a severe hardware defect within the device itself.

Over time, aging processes or vibrations can also lead to faulty solder joints or issues in the power supply on the circuit board, triggering internal errors and disabling the entire airbag system.

How do you recognize a defect in the airbag control unit 00060560C?

The clearest symptom is a permanently illuminated or intermittently flashing airbag or SRS warning light on the dashboard. Additionally, diagnostic tools may be unable to establish communication with the control unit, displaying specific error codes such as “Crash data stored” or “Internal control unit error.”

If the airbag warning light remains on continuously, this is a clear indication that the entire restraint system has been deactivated. In the event of a crash, neither airbags nor seatbelt pretensioners will deploy, posing a significant safety risk.

Another clear sign is when the workshop reports that the control unit is “unreadable.” This means the diagnostic tester cannot establish communication, almost always indicating a defect within the control unit itself rather than in peripheral components like sensors.

In some cases, other control units in the vehicle may also report communication errors with the airbag module, confirming that the root cause lies centrally in the airbag control unit.

In which vehicles is the control unit 00060560C installed?

The airbag control unit with part number 00060560C, along with its equivalent variants 18202126 and 18200826, was specifically fitted to the Mercedes-Benz C-Class model series W202. These models cover a production period from approximately 1993 to 2000.

At Airbag24, we repair part number 00060560C and its corresponding reference numbers for the following models:

Mercedes-Benz: C-Class W202 Sedan (1993–2000)

How is the control unit 00060560C professionally repaired?

Professional repair begins with a thorough vehicle diagnosis to rule out external faults. After removal and shipment to Airbag24, the control unit undergoes electronic analysis. The restoration process includes erasing crash data, repairing internal hardware defects, and conducting a final test. You receive 2 years' statutory liability for defects on the repair.

Before removing the control unit, it is crucial to read out the fault memory to ensure the issue does not stem from an external component such as the seat occupancy mat, a seatbelt pretensioner, or a crash sensor. Ideally, please enclose a printout of the fault log with your shipment.

At Airbag24, technicians perform a detailed examination at the circuit board level upon receipt. Stored crash data is removed using specialized equipment, and internal faults are resolved by replacing defective electronic components. Finally, full functionality is verified on a test bench, ensuring the unit operates just like new.

The major advantage of repairing the original unit is that the vehicle-specific coding is preserved. After reinstallation, no time-consuming reprogramming or recoding is required. However, it is important to perform a final clearing of the vehicle’s fault memory after installation.