Bentley Continental GT 5th generation airbag control unit repair

What is a Bentley Continental GT 5th generation airbag control unit?

The airbag control unit is the central control unit of the restraint system (SRS) in the Bentley Continental GT 5th generation. It evaluates the signals from the crash sensors. In an accident, it decides within milliseconds which airbags and seatbelt pretensioners deploy.

The unit monitors the system continuously, including every time the ignition is switched on. If it finds a fault, it reports it via the airbag warning light. The control unit is fitted in the since 2024 model series of the Bentley Continental GT 5th generation.

After an accident it stores crash data and locks itself. The warning light in the instrument cluster then shows you that the restraint system is no longer ready.

Why is the Bentley Continental GT 5th generation airbag control unit defective?

The most common cause is crash data stored in the control unit of the Bentley Continental GT 5th generation after an accident, even if no airbag deployed. Other possible causes are aged electronic components, cold solder joints, moisture and corrosion on connectors, and voltage spikes.

Crash data cannot be erased with an ordinary diagnostic tool. The warning light therefore stays on.

Voltage spikes occur, for example, through a weak battery or jump-starting. Moisture and corrosion damage the contacts. Aged components and cold solder joints cause intermittent faults. Typical signs are a permanently lit airbag warning light, a fault memory that cannot be cleared, and a diagnostic tool that cannot connect.

Common error codes for Bentley Continental GT 5th generation airbag control unit repair

The error codes for the Bentley Continental GT 5th generation airbag control unit mainly concern the firing circuits of the seatbelt pretensioners and the belt force limiters. They report, for example, deviations in the actuator or an impermissible resistance in the circuit.

These error codes are known for this vehicle:

• B130474 → Seatbelt pretensioner front left, actuator deviation
• B130574 → Seatbelt pretensioner front right, actuator deviation
• 00654 → Seatbelt pretensioner driver side: resistance outside nominal range or short to ground
• 00655 → Seatbelt pretensioner passenger side: resistance outside nominal range or short to ground
• 01740 → Belt force limiter driver side: resistance outside nominal range or short to ground
• 01741 → Belt force limiter passenger side: resistance outside nominal range or short to ground

A diagnostic tool reads out the error codes. A code alone does not prove that the control unit is defective. Connectors, wiring or an airbag module can also be the cause. Only testing will clarify it.

What part numbers are available for the Bentley Continental GT 5th generation airbag control unit repair?

The part number is on the label of the control unit in the Bentley Continental GT 5th generation and determines the exact version. Within a model series there are different numbers depending on equipment and year of manufacture, which is why the number of your unit belongs in the repair order.

We currently have no part numbers for this vehicle that we could list here for you. Please read the number directly from the label of your removed control unit and enter it in the repair order. Using this number, we assign your unit to the correct version.

Whether the unit is actually defective is only shown by reading out the fault memory or by testing it with us. First have the fault memory read out, and then disconnect the battery. Remove the control unit, create a repair order online and send the unit in. Processing at Airbag24, including checking, repairing and testing, usually takes 3–4 working days. The repaired control unit comes back with all vehicle data and is ready for use as soon as it is refitted — no coding or programming is required.