Description
Wiring harness with socket for rear upper lamp Citroën C5 I and II Estate. Functionality of the bulb itself is not guaranteed.
This replacement wiring harness and socket is designed for the rear upper lamp of Citroën C5 I and C5 II Estate models and is often searched by part code 6534KA or 6534.KA. It is a practical spare for professional workshops and DIY enthusiasts who perform bodywork electrical repairs. The harness provides a direct mechanical and electrical connection for the lamp socket, restoring reliable contact and reducing flicker or intermittent lighting that may occur with damaged or corroded original sockets.
Technical Information
- Manufacturer: Stellantis (Citroën/Peugeot)
- Model: Citroën C5 I; Citroën C5 II; Estate
- Product Codes: 6534KA
- Other Numbers: 6534.KA; NFP
Installation Recommendations
Installation is straightforward for a trained technician or an experienced DIYer. Typical steps:
- Disconnect Negative Battery Terminal Before Work To Avoid Short Circuits.
- Access The Rear Upper Lamp By Opening The Tailgate/Removing Interior Trim Panels As Required.
- Unplug The Old Socket From The Lamp Assembly And Release Any Retaining Clips Or Fasteners.
- Fit The New Socket And Harness Into The Lamp Housing, Ensuring Correct Pin Alignment And Secure Clips.
- Route The Harness Along The Original Cable Path, Secure With Clips Or Ties, And Reconnect The Electrical Connector.
- Test All Light Functions (Brake, Tail, Indicator Where Applicable) Before Reassembling Trim.
- Reassemble Trim Panels And Reconnect The Battery.
Use dielectric grease on the contacts if corrosion is present or if the vehicle is frequently exposed to moisture. Replace any damaged retaining clips to prevent strain on the new harness.
Why The Part Most Commonly Fails
The most common causes of failure are moisture ingress and corrosion of the electrical contacts, mechanical damage to the socket or wiring (often from repeated opening/closing of the tailgate or impact), heat degradation of insulation, and brittle plastic clips that allow movement and wear. Poor contact can cause flickering, intermittent operation, or complete loss of the lamp circuit.
Service Life And Replacement
Service life depends on exposure to salt, moisture, and mechanical stress. In normal conditions the harness can last many years, but in coastal or heavily salted-road regions replacement may be required sooner. Replace the harness immediately if you observe intermittent lighting, visible corrosion, melted plastic, or loose connections.
