The replacement steering column designed for Citroën C4 II (B7), DS4 and Peugeot 308 offers a direct-fit solution for workshop repairs and DIY maintenance. Commonly referenced under code 4123GP, this steering column restores mechanical connection between the steering wheel and the rack, including universal joints and mounting flange. Ideal for mechanics and experienced DIYers, the part is suitable when the original column shows play, binding, steering lock faults or electrical adjustment failures.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C4 II (B7), DS4, Peugeot 308
• Product Codes: 4123GP
• Additional Numbers: Not Listed

Function And Features

The steering column transmits driver input from the steering wheel to the steering rack or gearbox. Depending on the vehicle equipment it may also integrate:

• Intermediate shaft and universal joints
• Ignition switch and mechanical steering lock (where fitted)
• Electric adjustment motors or wiring for tilt/telescopic functions (on equipped versions)
• Mounting points for steering angle sensors, clockspring and airbag components

Most Common Causes Of Failure

• Wear of universal joints or bearings causing play and vibration
• Damage from impacts or road accidents deforming the column or splines
• Corrosion and ingress of dirt or moisture leading to stiffness or electrical faults
• Failure of ignition lock or steering lock mechanism
• Electrical faults in adjustment motors or connector corrosion on columns with powered functions

Replacement And Installation Recommendations

This section is aimed at professional mechanics and experienced DIYers. Follow vehicle manufacturer instructions and safety rules at all times.

• Disconnect the battery before starting work and wait the recommended time for SRS capacitors to discharge.
• Remove the steering wheel and airbag module according to the vehicle manufacturer’s procedure to avoid damage and ensure safety.
• Label and carefully disconnect electrical connectors (airbag, horn, adjustment motors, steering angle sensor, if present).
• Support the column, unbolt the mounting fasteners and remove the column assembly. Inspect splines, universal joints and mounting points for wear or damage.
• Fit the new column by reversing the removal steps. Ensure correct engagement of splines and that the steering wheel is set to the straight-ahead position before final tightening.
• After installation, verify correct operation of mechanical and electrical functions. Steering angle sensor/clockspring must be centered and the steering angle sensor recalibrated where required.
• Perform wheel alignment and check steering geometry after replacement.

Recommended Tools And Calibration

• Basic hand tools and torque wrench for mounting bolts
• Trim and airbag removal tools to avoid damage to interior trim and SRS components
• Diagnostic tool capable of reading and calibrating steering angle sensor and clearing related fault codes (professional diagnostic equipment recommended)

Why Choose This Part

Direct-fit compatibility with Citroën C4 II (B7), DS4 and Peugeot 308, referenced under 4123GP, makes this steering column a practical choice for timely workshop repairs. It addresses common steering concerns such as play, stiffness and electrical adjustment faults, restoring safe and precise steering control.

Notes For Installers

• Always follow the vehicle manufacturer’s torque specifications and assembly sequence.
• Check airbag and steering wheel functions after reassembly; do not drive the vehicle if SRS faults are present.
• If you are unsure about any electrical calibration steps, have the vehicle serviced by a technician with appropriate diagnostic equipment.