What is a Bentley Bentayga Mk2 airbag control unit?
The Bentley Bentayga Mk2 airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It monitors precise sensors, detects impact events in milliseconds, and deploys airbags and seatbelt pretensioners to ensure maximum safety. It also stores relevant crash data and signals faults via warning lights, which are essential for Bentley Bentayga Mk2 airbag control unit repairs.
This state-of-the-art electronic control unit has been specially developed for the second generation of the Bentley Bentayga (from approximately 2020).
It integrates seamlessly into the vehicle's complex safety architecture and ensures rapid response in critical situations.
The primary function is to monitor and control the entire Supplemental Restraint System (SRS), which includes front, side and curtain airbags as well as seat belt pretensioners.
Why is the Bentley Bentayga Mk2 airbag control unit faulty?
The Bentley Bentayga Mk2 airbag control unit often fails because it stores crash data after an accident and locks up, necessitating repair. Internal electronic errors, power surges, or software corruption can also cause failure, illuminating the airbag warning light and compromising driving safety. Early diagnosis is crucial for Bentley Bentayga Mk2 airbag control unit repair.
A common reason for malfunction is the storage of accident data after an impact, which prevents the system from being reused without a reset.
Internal hardware errors, such as component degradation or problems with solder connections, can also render the control unit unusable.
Software problems, a faulty power supply, or even water ingress can also cause the airbag ECU to fail, making a professional Bentley Bentayga Mk2 airbag control unit repair necessary.
Common error codes for Bentley Bentayga Mk2 airbag control unit repair
During a Bentley Bentayga Mk2 airbag control unit repair, specific error codes occur that directly indicate problems within the control unit. These codes, often in the B range, indicate internal defects, communication failures, or memory errors of the airbag module itself, not external sensors or actuators. A precise reading is essential for fault diagnosis and a successful Bentley Bentayga Mk2 airbag control unit repair.
- B1000 → Control unit communication error (general) → Airbag ECU
- B1015 → Control unit error / Faulty control unit → Airbag ECU
- B1139 → Error within the control unit → Airbag ECU
- B1193 → Control unit-related error (airbag module error) → Airbag ECU
- B1206 → Airbag RCM (Restraints Control Module) error → Airbag ECU
- B1342 → SRS control unit error → Airbag ECU
- B1620 → SRS control unit error → Airbag ECU
- B1649 → Crash/Control Unit Data Memory Error → Airbag ECU
These trouble codes reflect the generic VAG/Bentley SRS diagnostic logic and focus on problems with the control unit itself.
There are no code-specific errors for sensors, belt pretensioners, or seat occupancy.
For an accurate diagnosis and the necessary Bentley Bentayga Mk2 airbag control unit repair, a qualified workshop with specialized diagnostic technology is always required.
What part numbers are available for the Bentley Bentayga Mk2 airbag control unit repair?
Due to the high model specifications and VIN binding, there are no publicly listed, directly verified OEM part numbers for the Bentley Bentayga Mk2 airbag control unit repair. The exact part number is vehicle-specific and must be determined through official Bentley service channels or the chassis number. This ensures compatibility and is crucial for a successful Bentley Bentayga Mk2 airbag control unit repair.
Although generic part numbers from suppliers such as Bosch or Continental exist within the VAG Group, these are not directly validated for the Bentley Bentayga Mk2.
Example numbers from technically similar models such as Audi Q7/Q8 or Porsche Cayenne (e.g. 4M0 959 655 C or 4M0 959 655 G) serve only as a reference and are not automatically compatible.
The complexity of ECU coding means that a part number, even if it is visually similar, should not be used without official confirmation.
A vehicle identification number (VIN) query from an authorized Bentley dealer is the only reliable way to identify the exact OEM part number for your vehicle.
While the aftermarket shows related components, it does not provide explicit, verified OEM numbers for the Bentayga Mk2 airbag control unit, highlighting the importance of VIN-based searches.