What is a Bentley Mulsanne Mk1 airbag control unit?
The Bentley Mulsanne Mk1 airbag control unit is the central safety unit that activates all occupant restraint systems in the event of an accident. It continuously monitors sensors, stores relevant crash data, and ensures the proper and safe operation of all airbag modules and seatbelt pretensioners in the vehicle.
This module, also called SRS Control Module, is an essential component of the passive safety system of your Bentley Mulsanne Mk1.
It processes signals from acceleration sensors in real time and deploys the airbags instantly if necessary.
The integrated on-board diagnostics enables the reading of errors and operating data for maintenance purposes.
Why is the Bentley Mulsanne Mk1 airbag control unit faulty?
A Bentley Mulsanne Mk1 airbag control unit is often defective because it stores crash data after an accident, has internal electronic errors, or is disrupting communication with other systems. Such defects often make a professional Bentley Mulsanne Mk1 airbag control unit repair essential to continue protecting vehicle occupants.
Typical causes of failure are internal memory errors, which can be caused by voltage spikes or aging.
After an airbag is deployed, the control unit stores indelible crash data and must be reset or replaced to function again.
Communication problems via the CAN bus or damage caused by water ingress can also damage the module.
Common error codes for Bentley Mulsanne Mk1 airbag control unit repair
Common trouble codes indicating a faulty Bentley Mulsanne Mk1 airbag control unit include general control unit errors, communication malfunctions, and references to stored crash data. These codes require precise diagnosis to successfully repair the Bentley Mulsanne Mk1 airbag control unit.
- B0091 → Control unit error → Internal defect or malfunction in the module
- B1000 → Control unit communication error → Problems with data transmission to other vehicle modules
- B1014 → Airbag control unit communication error → Specific interruption of communication to the airbag control unit
- B1239 → Airbag diagnostic sensor unit defective → Malfunction in the sensor data acquisition of the control unit
- B1499 → SRS-ECU detects deployed airbag → Crash data is stored after an accident
- 65535 → Internal control unit memory error → Error in the internal data memory of the module
- B1620 → Internal error - Replace control unit → Replacing the airbag control unit is recommended
- 32100 → Manufacturer-specific control unit error → Non-specific internal module problem (Bentley-specific)
- 32490 → Gas generator detonator (ignition pyro element) → Error in the control of airbags or belt tensioners (Bentley-specific)
What part numbers are available for the Bentley Mulsanne Mk1 airbag control unit repair?
An exact OEM part number for the Bentley Mulsanne Mk1 airbag control unit is difficult to find publicly, as databases often primarily list airbag units and the control unit can be VIN-specific. Therefore, for a successful Bentley Mulsanne Mk1 airbag control unit repair, it is crucial to read the number directly from the installed module or determine it using the VIN.
Available OEM part numbers such as 3Y0 880 206 C (driver airbag) or 3Y0 880 204 C (passenger airbag) refer to the airbag modules themselves, not the control unit.
The Bentley Mulsanne Mk1's airbag control unit is a specialized component whose exact part number can often only be identified through official Bentley channels or professional parts catalogs with chassis number queries.
If your Bentley Mulsanne Mk1 airbag control unit is faulty, it is advisable to consult a specialist workshop service to determine the exact part number and carry out the appropriate repair or replacement.