Bentley GT GTC Steering Rack 971423051EQ

Series: 3S / 3SD (Third Generation: 2018–2024) Part Number: 971423051EQ (Standard & Rear-Axle Steering)

The part number 971423051EQ refers to the electric power steering (EPS) rack used in the third-generation Bentley Continental and Flying Spur. Because this generation shares the MSB platform with the Porsche Panamera (971), many core mechanical parts carry a “971” Porsche prefix.

1. Technical Specifications

• Type: Electromechanical Power Steering (EPS).

• Configuration: Rack and Pinion with integrated electric motor.

• Special Feature: This specific revision (EQ) is typically designed for vehicles equipped with All-Wheel Steering (Four-Wheel Steering).

• Shared Platform: This is a high-interchange part shared with the Porsche Panamera (2017–2024).

2. Part Number Evolution

The EQ suffix is one of the most recent iterations. You may find older or compatible versions under these codes:

• 971423051CA / CE / DL / EE / EN

• 971423051DN (often found in 2021+ Bentley GT Speed models)

3. Common Faults & Symptoms

• “Steering Support Restricted”: A common yellow dashboard warning. This is often an electrical software fault rather than a mechanical failure.

• Water Ingress: Because the motor is mounted low on the rack, deep standing water can sometimes penetrate the seals, causing internal corrosion of the ECU or the belt drive.

• Heavy Steering: If the electric motor fails or loses its 12V high-current feed, the steering will become extremely heavy, essentially reverting to manual.

• Mechanical Noise: A “notchy” feeling or grinding sound usually indicates a failure in the internal ball-screw mechanism or a worn drive belt inside the rack housing.

4. Programming & “Component Protection”

Critical Note: You cannot simply “plug and play” a new or used steering rack.

• Software Flashing: The rack must be flashed with the correct Bentley Dataset. A Porsche-coded rack installed in a Bentley will often result in steering wheel misalignment or active safety system errors (like Lane Assist).

• Basic Settings: After installation, the “End Stops” and “Zero Position” of the steering angle sensor must be calibrated using Bentley ODIS diagnostic software.

• VIN Matching: The rack is a security-related component and may require online authorization to clear “Component Protection.”