Description
Rotary Contact for Airbag, Horn and Car Radio for Citroën and Peugeot Vehicles.
This rotary contact (also commonly referred to as a clockspring) transfers electrical signals between the steering wheel and the vehicle wiring loom while allowing the wheel to rotate freely. Designed for Citroën and Peugeot models, this unit restores functionality to the driver airbag circuit, horn and steering-wheel-mounted radio/controls when the original ribbon cable or connectors have failed. Compatible with part numbers 9635682680 and 4112CP.
Key Features
- Restores Airbag (SRS) Circuit, Horn And Steering Wheel Controls
- OE-Type Fitment For Citroën And Peugeot Models
- Includes Central Contact Assembly With Ribbon Cable And Electrical Connectors
- Direct Replacement For Part Numbers: 9635682680, 4112CP
Compatibility
Commonly fitted to first-generation models from Stellantis brands, including:
- Citroën Berlingo I
- Citroën Partner I
- Citroën Xsara
- Citroën Xsara Picasso
- Peugeot 306
Technical Information
- Manufacturer: Stellantis (Citroën / Peugeot OEM)
- Model: Berlingo I; Partner I; Xsara; Xsara Picasso; Peugeot 306
- Product Codes: 9635682680; 4112CP
- Other Numbers: 4112 CP; 9635 682 680 (possible spaced variant)
Installation Recommendations
Follow these steps to replace the rotary contact. The procedure assumes basic mechanical skills and appropriate tools:
- Disconnect The Battery And Wait At Least 10 Minutes To Allow SRS Capacitors To Discharge.
- Mark The Steering Wheel Position Relative To The Column To Preserve Wheel Alignment.
- Carefully Remove The Airbag Module According To The Manufacturer Procedure And Disconnect All Connectors.
- Remove The Steering Wheel Nut, Slide Off The Wheel, And Note Any Alignment Marks.
- Unplug The Electrical Connectors From The Existing Clockspring And Unscrew Its Fastenings.
- Fit The New Rotary Contact In The Neutral/Centered Position (Do Not Rotate The Unit Until The Wheel Is Reinstalled).
- Reconnect All Electrical Plugs, Reinstall The Steering Wheel With Correct Torque, Refit The Airbag And Reconnect The Battery.
- Verify Functionality: Ensure Airbag Light Is Off, Horn Works, And Steering Wheel Controls Operate Properly.
Use Manufacturer Torque Settings For The Steering Wheel Nut. If Unsure, Refer To The Vehicle Repair Manual. Handle Airbag Components With Extreme Care.
Why The Part Fails Most Often
Rotary contacts fail primarily due to wear of the internal flat ribbon cable caused by repeated steering movement. Common failure modes include:
- Broken Or Frayed Ribbon Cable Leading To Intermittent Or Complete Loss Of Airbag Circuit, Horn Or Controls.
- Connector Damage Or Corrosion Causing Poor Electrical Contact.
- Incorrect Installation Or Over-Rotation During Repair Damaging The Internal Cable.
- Impact Damage From Collisions Affecting The Assembly.
Typical Symptoms: SRS/Airbag Warning Light On, Horn Not Working, Steering Wheel Buttons Inoperative Or Intermittent Electrical Faults On Steering Controls.
Notes For Professionals And DIYers
This replacement is suitable for experienced DIYers and professional repair shops. Always follow safety procedures when working with SRS systems: disconnect the battery, wait for capacitor discharge, and avoid static or impact on airbag modules. After installation, confirm system status with a diagnostic tool if available.
