What is a Dacia Logan MCV III airbag control unit?
The Dacia Logan MCV III airbag control unit is your vehicle's central safety unit. It controls and activates all occupant restraint systems in the event of a collision. The control unit continuously monitors sensor data, deploys airbags and seatbelt pretensioners, and stores important crash information to ensure maximum vehicle safety.
This module processes signals from crash and acceleration sensors and is crucial for the functionality of the passive safety system. It also communicates with other important vehicle systems via the CAN bus.
After installation, the device must be properly coded by a specialist workshop and adapted to the respective vehicle to avoid malfunctions.
Why is the Dacia Logan MCV III airbag control unit defective?
A Dacia Logan MCV III airbag control unit can fail due to internal hardware errors, software corruption, or power supply issues. Failure is also possible if crash data was saved after an accident, as this blocks the system. In such cases, repair or replacement is necessary.
Typical signs of a faulty control unit are the airbag warning light in the instrument cluster lighting up or the reading of specific error codes in the diagnostic system.
Aging processes or moisture ingress can also lead to damage, making a Dacia Logan MCV III airbag control unit repair unavoidable. A diagnosis by a qualified technician is essential.
Common error codes for Dacia Logan MCV III airbag control unit repair
When repairing the Dacia Logan MCV III airbag control unit, specific error codes indicate problems with the control unit itself, rather than with sensors or other components. These codes are crucial for a precise diagnosis, identifying the exact cause of the failure, and initiating targeted repair measures.
- B1000 → Control unit communication error → Error in the communication of the airbag ECU, e.g. via the CAN bus.
- B1007 → Driver airbag firing circuit error → Defect in the driver airbag firing circuit, often due to cable or clock spring problems.
- B1001 → Internal control unit error → Hardware or software error in the airbag ECU itself.
- B1014 → Power supply error → Undervoltage or overvoltage affecting the airbag control unit.
- B1015 → Self-test control unit error → The airbag ECU failed its internal self-test.
What part numbers are available for the Dacia Logan MCV III airbag control unit repair?
For Dacia Logan MCV III airbag control unit repairs, specific original OEM part numbers are relevant, ensuring exact compatibility with your vehicle model. These numbers are crucial for sourcing the correct replacement part and guarantee the full functionality of the airbag system after replacement.
The most important OEM part numbers for the Dacia Logan MCV III (or MCV II, as it is compatible with 1.5 dCi and 1.6 engines) airbag control unit are:
8200769222 (Dacia Original OEM): This number is listed as the original airbag control unit for Dacia Logan MCV 1.6 (approx. 2008).
8201163278 (Dacia Original OEM): This is a frequently cited OEM code, suitable for Dacia Logan, Logan MCV and Sandero with 1.5 dCi and 1.6 engines from approx. 2008.
985106332R (Dacia Original OEM): This number is used for airbag control units in the Dacia Logan MCV II and Logan I, especially for 1.5 dCi and LPG variants.
When purchasing spare parts, it is important to compare these part numbers exactly with the vehicle data (year of manufacture, engine type) in order to ensure a successful Dacia Logan MCV III airbag control unit repair.