What is a MINI Convertible R52 airbag control unit?
The MINI Convertible R52 airbag control unit is your vehicle's central safety unit, precisely activating all occupant restraint systems, such as airbags and seatbelt pretensioners, in the event of an accident. It continuously monitors sensors, stores relevant crash data, and ensures the proper functioning of all passive safety modules in the vehicle. It is essential for occupant safety.
This specialized control unit, often from BMW/MINI or Bosch as an OEM supplier, weighs about 0.4 kg and is designed for the 1.6 liter engine of the R52.
Its main function is the precise control and monitoring of the entire airbag and belt tensioner systems in order to react quickly and reliably in an emergency.
The module requires vehicle-specific coding, which is adapted based on the chassis number to ensure error-free integration and function.
Why is the MINI Convertible R52 airbag control unit defective?
A MINI Convertible R52 airbag control unit often fails because it stores crash data after an accident, requiring deactivation, or due to internal electronic errors and voltage problems that impair its function. If the control unit is broken or fails, the airbag warning light typically stays on, making immediate diagnosis and repair essential.
Common causes include internal processor errors, damaged memory chips due to overvoltage, or age-related material fatigue of the electronics.
Storing crash data after an impact also requires repair, as this data locks the control unit and prevents it from being reused without being deleted.
A defect can also manifest itself through communication problems with other systems or implausible sensor values that the system interprets as errors.
Common error codes for MINI Convertible R52 airbag control unit repair
When diagnosing the MINI Convertible R52 airbag control unit, specific error codes indicate internal problems or a malfunction of the unit itself, necessitating specific repair or replacement. These codes are crucial for identifying the exact cause of the airbag warning light and initiating the necessary steps.
- 93D7 → Airbag control unit malfunction → Internal error of the airbag ECU
- F0 → Control unit internally defective → Hardware or software error in the control unit
- 37847 → Control unit defective / crash data saved → Error after accident or internal defect
- 05 → Internal control unit error → General internal control unit fault
- 50 → Power supply error → Problem with the power supply to the control unit
These errors usually indicate a failure of the control unit and often cannot be remedied by simple measures, but require a professional MINI Convertible R52 airbag control unit repair.
The codes are ideally read using a BMW/MINI specific diagnostic device in a specialized workshop.
What part numbers are available for the MINI Convertible R52 airbag control unit repair?
For the MINI Convertible R52 airbag control unit repair, several specific OEM part numbers are relevant, ensuring exact compatibility and required for replacement or repair. These numbers, including retroactively replaceable versions, ensure that the replacement part or repaired module fits perfectly with your vehicle model and restores full safety functionality.
- 65 77 9807168-01 / 6577980716801 → BMW/MINI Genuine → Primary part number for the MINI Cooper Convertible (R52) airbag control unit.
- 65776933242 → BMW/MINI Original → Another common and compatible OEM part number.
- 65776962531 → BMW/MINI replacement/original → Retroactively interchangeable for 65776933242.
- 65779345360 → BMW/MINI replacement/original → Also a retroactively replaceable part number.
- 6962531 → Bosch (OEM via BMW) Original → Bosch is a major original equipment manufacturer for these airbag ECU models (R50/R52/R53).
Using the correct part number is crucial when repairing the MINI Convertible R52 airbag control unit to avoid malfunctions or incompatibilities.
It is recommended to provide the chassis number when purchasing a spare part or ordering a repair in order to determine the exact version of the control unit.