Steering Wheel Radio Control Citroën Peugeot 4112FA

Description

Radio control on the steering wheel for Citroën and Peugeot vehicles.

High-quality steering wheel radio control switch (part code 4112FA) designed for Citroën and Peugeot models. This control unit restores convenient audio operation from the steering wheel—volume, track/station selection and source switching—keeping the driver’s hands on the wheel and improving workshop turnaround time during repairs. Ideal for professional mechanics and experienced DIYers who look up parts by product code (4112FA). The compact design fits into the factory steering wheel assembly and interfaces with the vehicle wiring harness for reliable OEM-style operation.

Technical Information

• Manufacturer: Stellantis (Citroën / Peugeot)
• Model: Citroën C4 I; C4 Picasso; C4 Grand Picasso; Citroën Xsara; Xsara Picasso (common fitments)
• Product Codes: 4112FA; NFP
• Additional Numbers: N/A

Function

This steering wheel-mounted radio control provides tactile buttons for audio system operation without reaching for the head unit. Typical functions include volume up/down, track/seek, mode/source selection and mute. The switch assembly connects through the steering column harness and communicates with the vehicle’s audio/steering interface, relying on correct electrical contacts and the clock spring/spiral cable for signal transmission.

Replacement Procedure

1. Disconnect the vehicle battery and wait at least 2 minutes to ensure airbag system discharge.
2. Remove the airbag module following the manufacturer’s instructions and using appropriate tools.
3. Unscrew the steering wheel centre trim and remove covers to access the switch assembly.
4. Disconnect the electrical connector(s) and unclip or unscrew the old switch from the steering wheel.
5. Fit the new 4112FA switch, reconnect the connector(s), and verify correct routing of wires through the clock spring.
6. Reassemble steering wheel trim and reinstall the airbag. Reconnect the battery and perform functional checks of all steering wheel controls.

Installation Recommendations

• Always Disconnect The Battery Before Work: Prevent short circuits and airbag deployment—observe manufacturer waiting times.
• Inspect The Clock Spring: Ensure the spiral cable is intact and correctly aligned; damaged clock springs can cause intermittent faults even with a new switch.
• Check Connectors And Contact Surfaces: Clean corroded pins and ensure secure locking of connectors for reliable electrical contact.
• Use Proper Tools And Torque Values: Avoid damage to trim fasteners and airbag retaining bolts; follow OEM procedures for removal and installation.
• Test All Functions After Installation: Verify volume, track/seek, mode and any phone controls work correctly before returning vehicle to service.

Why This Part Commonly Fails

Steering wheel radio controls are subject to frequent use and environmental stress. Common failure modes include worn or dirty contacts causing intermittent operation, broken plastic buttons or clips from repeated use, water or moisture ingress, and cracked solder joints on internal PCBs. Failures are more likely in vehicles with high mileage or in cars exposed to humidity and temperature cycles. In some cases, wiring damage in the steering column or a faulty clock spring can mimic a failed switch—inspect adjacent components when diagnosing.

Notes For Professionals And DIYers

Part searched by code: 4112FA. Recommended for workshops and experienced home mechanics familiar with airbag handling and steering wheel disassembly. Replacing the switch typically restores full steering wheel control functionality and improves driver safety and comfort.